./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G --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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:07:05,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:07:05,838 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:07:05,871 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:07:05,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:07:05,873 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:07:05,875 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:07:05,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:07:05,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:07:05,880 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:07:05,881 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:07:05,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:07:05,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:07:05,885 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:07:05,886 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:07:05,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:07:05,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:07:05,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:07:05,892 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:07:05,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:07:05,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:07:05,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:07:05,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:07:05,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:07:05,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:07:05,924 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:07:05,924 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:07:05,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:07:05,927 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:07:05,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:07:05,930 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:07:05,931 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:07:05,933 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:07:05,934 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:07:05,936 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:07:05,937 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:07:05,938 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:07:05,938 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:07:05,938 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:07:05,939 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:07:05,940 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:07:05,941 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:07:05,985 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:07:05,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:07:05,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:07:05,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:07:05,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:07:05,994 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:07:05,994 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:07:05,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:07:05,994 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:07:05,995 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:07:05,996 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:07:05,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:07:05,997 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:07:05,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:07:05,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:07:05,997 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:07:05,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:07:05,998 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:07:05,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:07:05,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:07:05,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:07:05,999 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:07:05,999 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:07:06,000 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:07:06,000 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:07:06,000 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:07:06,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:07:06,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:07:06,001 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:07:06,003 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:07:06,003 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:07:06,003 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:07:06,003 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_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2021-11-23 13:07:06,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:07:06,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:07:06,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:07:06,297 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:07:06,297 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:07:06,299 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-23 13:07:06,389 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data/bcb8f95ad/9789cad5a64e4a8db33169078da18338/FLAGecf4288e5 [2021-11-23 13:07:06,901 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:07:06,902 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-23 13:07:06,918 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data/bcb8f95ad/9789cad5a64e4a8db33169078da18338/FLAGecf4288e5 [2021-11-23 13:07:07,286 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data/bcb8f95ad/9789cad5a64e4a8db33169078da18338 [2021-11-23 13:07:07,288 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:07:07,289 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:07:07,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:07:07,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:07:07,294 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:07:07,295 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40e21857 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07, skipping insertion in model container [2021-11-23 13:07:07,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:07:07,332 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:07:07,557 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_dcfa5c6a-c529-48ff-89c9-573461ab1c04/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-23 13:07:07,560 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:07:07,571 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:07:07,624 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_dcfa5c6a-c529-48ff-89c9-573461ab1c04/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-23 13:07:07,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:07:07,639 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:07:07,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07 WrapperNode [2021-11-23 13:07:07,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:07:07,641 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:07:07,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:07:07,641 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:07:07,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,717 INFO L137 Inliner]: procedures = 18, calls = 75, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 424 [2021-11-23 13:07:07,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:07:07,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:07:07,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:07:07,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:07:07,729 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,775 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,799 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:07:07,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:07:07,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:07:07,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:07:07,815 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (1/1) ... [2021-11-23 13:07:07,822 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:07:07,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:07,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:07:07,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:07:07,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:07:07,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:07:07,879 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:07:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 13:07:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:07:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-23 13:07:07,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:07:07,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:07:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:07:07,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:07:07,972 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:07:07,973 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:07:08,564 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:07:08,573 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:07:08,582 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-23 13:07:08,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:08 BoogieIcfgContainer [2021-11-23 13:07:08,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:07:08,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:07:08,587 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:07:08,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:07:08,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:07:07" (1/3) ... [2021-11-23 13:07:08,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d9406d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:07:08, skipping insertion in model container [2021-11-23 13:07:08,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:07" (2/3) ... [2021-11-23 13:07:08,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d9406d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:07:08, skipping insertion in model container [2021-11-23 13:07:08,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:08" (3/3) ... [2021-11-23 13:07:08,594 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2021-11-23 13:07:08,599 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:07:08,599 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:07:08,646 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:07:08,654 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:07:08,654 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:07:08,673 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 105 states have (on average 1.7142857142857142) internal successors, (180), 106 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:08,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 13:07:08,680 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:08,681 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:07:08,682 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:07:08,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:08,688 INFO L85 PathProgramCache]: Analyzing trace with hash 311741284, now seen corresponding path program 1 times [2021-11-23 13:07:08,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:08,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170817889] [2021-11-23 13:07:08,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:08,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:08,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:07:08,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:07:08,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170817889] [2021-11-23 13:07:08,826 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170817889] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:08,826 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:08,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:07:08,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278286616] [2021-11-23 13:07:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:08,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:07:08,834 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:07:08,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:07:08,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:07:08,865 INFO L87 Difference]: Start difference. First operand has 107 states, 105 states have (on average 1.7142857142857142) internal successors, (180), 106 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:08,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:08,896 INFO L93 Difference]: Finished difference Result 212 states and 358 transitions. [2021-11-23 13:07:08,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:07:08,898 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 13:07:08,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:08,908 INFO L225 Difference]: With dead ends: 212 [2021-11-23 13:07:08,908 INFO L226 Difference]: Without dead ends: 104 [2021-11-23 13:07:08,912 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:07:08,916 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:07:08,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:07:08,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-23 13:07:08,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-23 13:07:08,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 103 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:08,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2021-11-23 13:07:08,960 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 16 [2021-11-23 13:07:08,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:08,960 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-11-23 13:07:08,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:08,961 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions. [2021-11-23 13:07:08,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 13:07:08,962 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:08,962 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:07:08,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:07:08,963 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:07:08,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:08,964 INFO L85 PathProgramCache]: Analyzing trace with hash 2055151297, now seen corresponding path program 1 times [2021-11-23 13:07:08,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:07:08,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356835940] [2021-11-23 13:07:08,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:08,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:07:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:07:09,059 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:07:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:07:09,137 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:07:09,137 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 13:07:09,139 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:07:09,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 13:07:09,144 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 13:07:09,147 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:07:09,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:07:09 BoogieIcfgContainer [2021-11-23 13:07:09,179 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:07:09,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:07:09,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:07:09,180 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:07:09,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:08" (3/4) ... [2021-11-23 13:07:09,183 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 13:07:09,183 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:07:09,184 INFO L158 Benchmark]: Toolchain (without parser) took 1894.65ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 45.8MB in the beginning and 44.6MB in the end (delta: 1.2MB). Peak memory consumption was 21.5MB. Max. memory is 16.1GB. [2021-11-23 13:07:09,185 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:07:09,186 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.98ms. Allocated memory is still 88.1MB. Free memory was 45.6MB in the beginning and 57.0MB in the end (delta: -11.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 13:07:09,186 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.63ms. Allocated memory is still 88.1MB. Free memory was 57.0MB in the beginning and 53.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:07:09,187 INFO L158 Benchmark]: Boogie Preprocessor took 84.76ms. Allocated memory is still 88.1MB. Free memory was 53.9MB in the beginning and 51.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:07:09,188 INFO L158 Benchmark]: RCFGBuilder took 779.64ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.5MB in the beginning and 75.4MB in the end (delta: -23.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. [2021-11-23 13:07:09,189 INFO L158 Benchmark]: TraceAbstraction took 592.57ms. Allocated memory is still 107.0MB. Free memory was 74.8MB in the beginning and 45.2MB in the end (delta: 29.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-11-23 13:07:09,189 INFO L158 Benchmark]: Witness Printer took 3.93ms. Allocated memory is still 107.0MB. Free memory was 45.2MB in the beginning and 44.6MB in the end (delta: 618.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:07:09,193 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 88.1MB. Free memory is still 62.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 348.98ms. Allocated memory is still 88.1MB. Free memory was 45.6MB in the beginning and 57.0MB in the end (delta: -11.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.63ms. Allocated memory is still 88.1MB. Free memory was 57.0MB in the beginning and 53.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.76ms. Allocated memory is still 88.1MB. Free memory was 53.9MB in the beginning and 51.5MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 779.64ms. Allocated memory was 88.1MB in the beginning and 107.0MB in the end (delta: 18.9MB). Free memory was 51.5MB in the beginning and 75.4MB in the end (delta: -23.9MB). Peak memory consumption was 21.7MB. Max. memory is 16.1GB. * TraceAbstraction took 592.57ms. Allocated memory is still 107.0MB. Free memory was 74.8MB in the beginning and 45.2MB in the end (delta: 29.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 3.93ms. Allocated memory is still 107.0MB. Free memory was 45.2MB in the beginning and 44.6MB in the end (delta: 618.0kB). 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: 237]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 120, overapproximation of bitwiseAnd at line 220. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L231] float x = -1.0f / 0.0f; [L232] float y = __VERIFIER_nondet_float(); [L234] CALL, EXPR __ieee754_hypotf(x, y) [L84] float a = x, b = y, t1, t2, y1, y2, w; [L85] __int32_t j, k, ha, hb; VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967296, b=4294967299, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L88] ieee_float_shape_type gf_u; [L89] gf_u.value = (x) [L90] EXPR gf_u.word [L90] (ha) = gf_u.word [L92] ha &= 0x7fffffffL VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967296, b=4294967299, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L94] ieee_float_shape_type gf_u; [L95] gf_u.value = (y) [L96] EXPR gf_u.word [L96] (hb) = gf_u.word [L98] hb &= 0x7fffffffL VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967296, b=4294967299, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L99] COND FALSE !(hb > ha) [L106] a = x [L107] b = y VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967296, b=4294967299, ha=-2, hb=-251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L110] ieee_float_shape_type sf_u; [L111] sf_u.word = (ha) [L112] EXPR sf_u.value [L112] (a) = sf_u.value [L115] ieee_float_shape_type sf_u; [L116] sf_u.word = (hb) [L117] EXPR sf_u.value [L117] (b) = sf_u.value [L119] COND TRUE (ha - hb) > 0xf000000L [L120] return a + b; VAL [\old(x)=4294967296, \old(y)=4294967299, a=4294967297, b=4294967300, ha=-2, hb=-251658243, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] [L234] RET, EXPR __ieee754_hypotf(x, y) [L234] float res = __ieee754_hypotf(x, y); [L236] CALL, EXPR isinf_float(res) [L214] __int32_t ix; VAL [\old(x)=4294967298, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967298] [L216] ieee_float_shape_type gf_u; [L217] gf_u.value = (x) [L218] EXPR gf_u.word [L218] (ix) = gf_u.word [L220] ix &= 0x7fffffff [L221] return ((ix) == 0x7f800000L); VAL [\old(x)=4294967298, \result=0, ix=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=4294967298] [L236] RET, EXPR isinf_float(res) [L236] COND TRUE !isinf_float(res) [L237] reach_error() VAL [one_sqrt=1, res=4294967298, tiny_sqrt=1/1000000000000000000000000000000, x=4294967296, y=4294967299] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 139 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 139 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=107occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-23 13:07:09,256 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/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_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G --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 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:07:11,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:07:11,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:07:11,654 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:07:11,654 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:07:11,658 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:07:11,660 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:07:11,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:07:11,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:07:11,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:07:11,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:07:11,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:07:11,680 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:07:11,684 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:07:11,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:07:11,691 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:07:11,693 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:07:11,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:07:11,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:07:11,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:07:11,707 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:07:11,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:07:11,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:07:11,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:07:11,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:07:11,722 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:07:11,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:07:11,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:07:11,725 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:07:11,726 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:07:11,727 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:07:11,728 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:07:11,729 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:07:11,730 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:07:11,732 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:07:11,732 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:07:11,733 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:07:11,733 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:07:11,733 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:07:11,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:07:11,736 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:07:11,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-23 13:07:11,770 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:07:11,770 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:07:11,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:07:11,771 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:07:11,772 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:07:11,772 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:07:11,772 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:07:11,773 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:07:11,773 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:07:11,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:07:11,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:07:11,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:07:11,774 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:07:11,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:07:11,774 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 13:07:11,774 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 13:07:11,774 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 13:07:11,775 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:07:11,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:07:11,775 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:07:11,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:07:11,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:07:11,776 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:07:11,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:07:11,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:07:11,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:07:11,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:07:11,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:07:11,777 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 13:07:11,777 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 13:07:11,777 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:07:11,777 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:07:11,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:07:11,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:07:11,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 13:07:11,778 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_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 35bac483b91a5ef1ca7e770e0d3fb7ad4f1fb6725ed9e57de7011eda6b44423e [2021-11-23 13:07:12,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:07:12,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:07:12,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:07:12,199 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:07:12,200 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:07:12,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-23 13:07:12,276 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data/1dc3909ed/7e11918ed9ce41f2a5f541334ee415b7/FLAGadc6beb2f [2021-11-23 13:07:12,790 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:07:12,790 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c [2021-11-23 13:07:12,801 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data/1dc3909ed/7e11918ed9ce41f2a5f541334ee415b7/FLAGadc6beb2f [2021-11-23 13:07:13,122 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/data/1dc3909ed/7e11918ed9ce41f2a5f541334ee415b7 [2021-11-23 13:07:13,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:07:13,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:07:13,132 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:07:13,132 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:07:13,136 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:07:13,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39bf4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13, skipping insertion in model container [2021-11-23 13:07:13,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,150 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:07:13,192 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:07:13,376 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_dcfa5c6a-c529-48ff-89c9-573461ab1c04/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-23 13:07:13,379 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:07:13,391 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:07:13,484 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_dcfa5c6a-c529-48ff-89c9-573461ab1c04/sv-benchmarks/c/float-newlib/float_req_bl_1270b.c[4704,4717] [2021-11-23 13:07:13,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:07:13,500 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:07:13,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13 WrapperNode [2021-11-23 13:07:13,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:07:13,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:07:13,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:07:13,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:07:13,510 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,534 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,569 INFO L137 Inliner]: procedures = 21, calls = 75, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 424 [2021-11-23 13:07:13,570 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:07:13,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:07:13,571 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:07:13,571 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:07:13,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,638 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,660 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:07:13,680 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:07:13,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:07:13,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:07:13,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (1/1) ... [2021-11-23 13:07:13,694 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:07:13,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:07:13,719 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:07:13,730 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:07:13,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:07:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 13:07:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 13:07:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 13:07:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-23 13:07:13,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:07:13,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:07:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-23 13:07:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-23 13:07:13,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 13:07:13,876 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:07:13,877 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:07:21,272 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:07:21,281 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:07:21,281 INFO L301 CfgBuilder]: Removed 40 assume(true) statements. [2021-11-23 13:07:21,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:21 BoogieIcfgContainer [2021-11-23 13:07:21,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:07:21,286 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:07:21,286 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:07:21,294 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:07:21,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:07:13" (1/3) ... [2021-11-23 13:07:21,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10eff47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:07:21, skipping insertion in model container [2021-11-23 13:07:21,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:07:13" (2/3) ... [2021-11-23 13:07:21,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10eff47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:07:21, skipping insertion in model container [2021-11-23 13:07:21,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:07:21" (3/3) ... [2021-11-23 13:07:21,301 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1270b.c [2021-11-23 13:07:21,307 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:07:21,307 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:07:21,356 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:07:21,364 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-23 13:07:21,367 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:07:21,386 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 105 states have (on average 1.7142857142857142) internal successors, (180), 106 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:21,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-23 13:07:21,393 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:21,394 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:07:21,394 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:07:21,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:21,400 INFO L85 PathProgramCache]: Analyzing trace with hash 311741284, now seen corresponding path program 1 times [2021-11-23 13:07:21,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:07:21,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791361716] [2021-11-23 13:07:21,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:21,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:07:21,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:07:21,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:07:21,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 13:07:21,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:21,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 13:07:21,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:21,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:07:21,705 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:07:21,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:07:21,797 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:07:21,798 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [791361716] [2021-11-23 13:07:21,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [791361716] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:07:21,799 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:07:21,800 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 13:07:21,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104560379] [2021-11-23 13:07:21,803 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:07:21,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:07:21,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:07:21,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:07:21,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:07:21,852 INFO L87 Difference]: Start difference. First operand has 107 states, 105 states have (on average 1.7142857142857142) internal successors, (180), 106 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:21,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:07:21,906 INFO L93 Difference]: Finished difference Result 212 states and 358 transitions. [2021-11-23 13:07:21,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:07:21,910 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-23 13:07:21,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:07:21,922 INFO L225 Difference]: With dead ends: 212 [2021-11-23 13:07:21,922 INFO L226 Difference]: Without dead ends: 104 [2021-11-23 13:07:21,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:07:21,931 INFO L933 BasicCegarLoop]: 139 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:07:21,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:07:21,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2021-11-23 13:07:21,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2021-11-23 13:07:22,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3203883495145632) internal successors, (136), 103 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:22,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 136 transitions. [2021-11-23 13:07:22,014 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 136 transitions. Word has length 16 [2021-11-23 13:07:22,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:07:22,014 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 136 transitions. [2021-11-23 13:07:22,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:07:22,015 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 136 transitions. [2021-11-23 13:07:22,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 13:07:22,016 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:07:22,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:07:22,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:07:22,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:07:22,230 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:07:22,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:07:22,231 INFO L85 PathProgramCache]: Analyzing trace with hash 2055151297, now seen corresponding path program 1 times [2021-11-23 13:07:22,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:07:22,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [503277003] [2021-11-23 13:07:22,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:07:22,233 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:07:22,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:07:22,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:07:22,263 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 13:07:22,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:07:22,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-23 13:07:22,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:07:23,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-23 13:07:23,360 INFO L354 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2021-11-23 13:07:23,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 52 [2021-11-23 13:07:25,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 59 [2021-11-23 13:07:27,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:07:27,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:09,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:09,312 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:09,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [503277003] [2021-11-23 13:08:09,313 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [503277003] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:09,313 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:09,313 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13, 13] imperfect sequences [] total 25 [2021-11-23 13:08:09,313 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981858825] [2021-11-23 13:08:09,313 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:09,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-23 13:08:09,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:09,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-23 13:08:09,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=513, Unknown=8, NotChecked=0, Total=600 [2021-11-23 13:08:09,317 INFO L87 Difference]: Start difference. First operand 104 states and 136 transitions. Second operand has 25 states, 25 states have (on average 1.64) internal successors, (41), 25 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:10,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:10,520 INFO L93 Difference]: Finished difference Result 117 states and 149 transitions. [2021-11-23 13:08:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-23 13:08:10,522 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.64) internal successors, (41), 25 states have internal predecessors, (41), 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 21 [2021-11-23 13:08:10,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:10,534 INFO L225 Difference]: With dead ends: 117 [2021-11-23 13:08:10,536 INFO L226 Difference]: Without dead ends: 109 [2021-11-23 13:08:10,537 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 35.6s TimeCoverageRelationStatistics Valid=92, Invalid=602, Unknown=8, NotChecked=0, Total=702 [2021-11-23 13:08:10,541 INFO L933 BasicCegarLoop]: 123 mSDtfsCounter, 14 mSDsluCounter, 1857 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 1980 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 325 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:10,543 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 1980 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 325 Unchecked, 0.2s Time] [2021-11-23 13:08:10,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-23 13:08:10,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2021-11-23 13:08:10,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.3055555555555556) internal successors, (141), 108 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:10,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 141 transitions. [2021-11-23 13:08:10,567 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 141 transitions. Word has length 21 [2021-11-23 13:08:10,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:10,568 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 141 transitions. [2021-11-23 13:08:10,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.64) internal successors, (41), 25 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:10,568 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 141 transitions. [2021-11-23 13:08:10,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-23 13:08:10,571 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:10,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:10,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 13:08:10,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:10,789 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:10,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:10,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1653009985, now seen corresponding path program 1 times [2021-11-23 13:08:10,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:10,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195520248] [2021-11-23 13:08:10,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:10,790 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:10,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:10,792 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:10,830 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 13:08:10,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:10,962 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 13:08:10,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:12,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:15,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:15,218 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:15,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195520248] [2021-11-23 13:08:15,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1195520248] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:15,218 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:15,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-23 13:08:15,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117504326] [2021-11-23 13:08:15,219 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:15,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:08:15,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:08:15,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:08:15,220 INFO L87 Difference]: Start difference. First operand 109 states and 141 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:16,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:16,288 INFO L93 Difference]: Finished difference Result 117 states and 148 transitions. [2021-11-23 13:08:16,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:08:16,289 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 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 21 [2021-11-23 13:08:16,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:16,291 INFO L225 Difference]: With dead ends: 117 [2021-11-23 13:08:16,291 INFO L226 Difference]: Without dead ends: 109 [2021-11-23 13:08:16,292 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:08:16,293 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 120 mSDsluCounter, 858 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 112 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:16,294 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 970 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 25 Invalid, 0 Unknown, 112 Unchecked, 1.1s Time] [2021-11-23 13:08:16,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2021-11-23 13:08:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 104. [2021-11-23 13:08:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 103 states have (on average 1.3106796116504855) internal successors, (135), 103 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:16,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2021-11-23 13:08:16,305 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 21 [2021-11-23 13:08:16,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:16,305 INFO L470 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2021-11-23 13:08:16,305 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:16,306 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2021-11-23 13:08:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 13:08:16,307 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:16,307 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:16,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-23 13:08:16,521 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:16,522 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:16,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:16,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1948976903, now seen corresponding path program 1 times [2021-11-23 13:08:16,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:16,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [189337507] [2021-11-23 13:08:16,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:16,524 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:16,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:16,525 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:16,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-23 13:08:16,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:16,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:08:16,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:17,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:17,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:18,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:18,344 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:18,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [189337507] [2021-11-23 13:08:18,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [189337507] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:18,345 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:18,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:08:18,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026440616] [2021-11-23 13:08:18,346 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:18,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:08:18,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:18,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:08:18,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:08:18,348 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:18,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:18,481 INFO L93 Difference]: Finished difference Result 199 states and 256 transitions. [2021-11-23 13:08:18,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:08:18,483 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 24 [2021-11-23 13:08:18,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:18,485 INFO L225 Difference]: With dead ends: 199 [2021-11-23 13:08:18,487 INFO L226 Difference]: Without dead ends: 118 [2021-11-23 13:08:18,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:08:18,493 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 30 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:18,496 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 535 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 17 Unchecked, 0.1s Time] [2021-11-23 13:08:18,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-11-23 13:08:18,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 110. [2021-11-23 13:08:18,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.2935779816513762) internal successors, (141), 109 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 141 transitions. [2021-11-23 13:08:18,513 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 141 transitions. Word has length 24 [2021-11-23 13:08:18,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:18,513 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 141 transitions. [2021-11-23 13:08:18,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:18,514 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 141 transitions. [2021-11-23 13:08:18,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-11-23 13:08:18,518 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:18,519 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:18,537 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-23 13:08:18,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:18,734 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:18,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:18,734 INFO L85 PathProgramCache]: Analyzing trace with hash -927908549, now seen corresponding path program 1 times [2021-11-23 13:08:18,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:18,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394089066] [2021-11-23 13:08:18,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:18,735 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:18,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:18,741 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:18,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-23 13:08:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:18,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 13:08:18,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:20,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:20,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:20,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:20,979 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:20,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394089066] [2021-11-23 13:08:20,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394089066] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:20,980 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:20,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-23 13:08:20,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519703524] [2021-11-23 13:08:20,980 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:20,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 13:08:20,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:20,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 13:08:20,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:08:20,982 INFO L87 Difference]: Start difference. First operand 110 states and 141 transitions. Second operand has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:21,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:21,689 INFO L93 Difference]: Finished difference Result 209 states and 265 transitions. [2021-11-23 13:08:21,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-23 13:08:21,690 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 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 24 [2021-11-23 13:08:21,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:21,691 INFO L225 Difference]: With dead ends: 209 [2021-11-23 13:08:21,691 INFO L226 Difference]: Without dead ends: 129 [2021-11-23 13:08:21,692 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:08:21,693 INFO L933 BasicCegarLoop]: 130 mSDtfsCounter, 33 mSDsluCounter, 699 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 65 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:21,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 829 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 65 Unchecked, 0.5s Time] [2021-11-23 13:08:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2021-11-23 13:08:21,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 111. [2021-11-23 13:08:21,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.290909090909091) internal successors, (142), 110 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:21,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 142 transitions. [2021-11-23 13:08:21,705 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 142 transitions. Word has length 24 [2021-11-23 13:08:21,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:21,705 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 142 transitions. [2021-11-23 13:08:21,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.9) internal successors, (39), 10 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:21,706 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 142 transitions. [2021-11-23 13:08:21,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 13:08:21,707 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:21,707 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:21,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-23 13:08:21,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:21,921 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:21,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:21,922 INFO L85 PathProgramCache]: Analyzing trace with hash -558668800, now seen corresponding path program 1 times [2021-11-23 13:08:21,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:21,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561489751] [2021-11-23 13:08:21,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:21,922 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:21,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:21,924 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:21,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-23 13:08:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:22,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-23 13:08:22,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:22,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 29 [2021-11-23 13:08:23,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 26 [2021-11-23 13:08:24,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:24,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:26,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:26,730 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:26,730 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561489751] [2021-11-23 13:08:26,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561489751] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:26,731 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:26,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 17 [2021-11-23 13:08:26,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095786480] [2021-11-23 13:08:26,731 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:26,748 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-11-23 13:08:26,748 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:26,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-11-23 13:08:26,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:08:26,749 INFO L87 Difference]: Start difference. First operand 111 states and 142 transitions. Second operand has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:26,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:26,783 INFO L93 Difference]: Finished difference Result 130 states and 163 transitions. [2021-11-23 13:08:26,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-23 13:08:26,784 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 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 26 [2021-11-23 13:08:26,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:26,785 INFO L225 Difference]: With dead ends: 130 [2021-11-23 13:08:26,785 INFO L226 Difference]: Without dead ends: 114 [2021-11-23 13:08:26,786 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2021-11-23 13:08:26,786 INFO L933 BasicCegarLoop]: 121 mSDtfsCounter, 6 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 1509 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 93 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:26,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 1509 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 93 Unchecked, 0.0s Time] [2021-11-23 13:08:26,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-11-23 13:08:26,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 111. [2021-11-23 13:08:26,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 110 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:26,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 141 transitions. [2021-11-23 13:08:26,794 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 141 transitions. Word has length 26 [2021-11-23 13:08:26,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:26,795 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 141 transitions. [2021-11-23 13:08:26,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.588235294117647) internal successors, (44), 17 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:26,795 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 141 transitions. [2021-11-23 13:08:26,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 13:08:26,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:26,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:26,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-23 13:08:26,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:26,997 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:26,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:26,997 INFO L85 PathProgramCache]: Analyzing trace with hash 121389570, now seen corresponding path program 1 times [2021-11-23 13:08:26,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:26,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [322709362] [2021-11-23 13:08:26,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:26,998 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:26,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:26,999 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:27,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-23 13:08:27,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:27,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 13:08:27,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:30,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:30,043 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:35,805 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_18| (_ BitVec 32))) (or (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |c_ULTIMATE.start___ieee754_hypotf_~ha~0#1|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_18|)))) (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_18|) (_ bv2139095040 32)))) is different from false [2021-11-23 13:08:37,962 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_skolemized_q#valueAsBitvector_18| (_ BitVec 32)) (|v_skolemized_q#valueAsBitvector_17| (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_17|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_17|)) |c_ULTIMATE.start___ieee754_hypotf_~x#1|)) (not (= (let ((.cse0 (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_17|))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_18|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_18|)))) (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_18|) (_ bv2139095040 32)))) is different from false [2021-11-23 13:08:37,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:37,985 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:37,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [322709362] [2021-11-23 13:08:37,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [322709362] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:37,985 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:37,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 22 [2021-11-23 13:08:37,986 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305813955] [2021-11-23 13:08:37,986 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:37,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-11-23 13:08:37,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:37,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-11-23 13:08:37,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=336, Unknown=2, NotChecked=74, Total=462 [2021-11-23 13:08:37,988 INFO L87 Difference]: Start difference. First operand 111 states and 141 transitions. Second operand has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:40,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:40,270 INFO L93 Difference]: Finished difference Result 134 states and 164 transitions. [2021-11-23 13:08:40,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-23 13:08:40,270 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 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 26 [2021-11-23 13:08:40,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:40,272 INFO L225 Difference]: With dead ends: 134 [2021-11-23 13:08:40,272 INFO L226 Difference]: Without dead ends: 124 [2021-11-23 13:08:40,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=55, Invalid=371, Unknown=2, NotChecked=78, Total=506 [2021-11-23 13:08:40,273 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 23 mSDsluCounter, 2035 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2164 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 152 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:40,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 2164 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 152 Unchecked, 0.0s Time] [2021-11-23 13:08:40,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2021-11-23 13:08:40,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 113. [2021-11-23 13:08:40,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 112 states have (on average 1.2857142857142858) internal successors, (144), 112 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:40,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 144 transitions. [2021-11-23 13:08:40,282 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 144 transitions. Word has length 26 [2021-11-23 13:08:40,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:40,282 INFO L470 AbstractCegarLoop]: Abstraction has 113 states and 144 transitions. [2021-11-23 13:08:40,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.272727272727273) internal successors, (50), 22 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 144 transitions. [2021-11-23 13:08:40,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 13:08:40,284 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:40,284 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:40,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (8)] Ended with exit code 0 [2021-11-23 13:08:40,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:40,500 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:40,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:40,502 INFO L85 PathProgramCache]: Analyzing trace with hash -271637440, now seen corresponding path program 1 times [2021-11-23 13:08:40,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:40,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1345303668] [2021-11-23 13:08:40,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:40,503 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:40,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:40,504 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:40,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-23 13:08:40,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:40,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 13:08:40,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:41,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:41,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:42,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:42,715 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:42,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1345303668] [2021-11-23 13:08:42,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1345303668] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:42,716 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:42,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-23 13:08:42,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109812486] [2021-11-23 13:08:42,717 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:42,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 13:08:42,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:42,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 13:08:42,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:08:42,718 INFO L87 Difference]: Start difference. First operand 113 states and 144 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:43,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:43,142 INFO L93 Difference]: Finished difference Result 210 states and 266 transitions. [2021-11-23 13:08:43,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:08:43,143 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 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 26 [2021-11-23 13:08:43,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:43,144 INFO L225 Difference]: With dead ends: 210 [2021-11-23 13:08:43,145 INFO L226 Difference]: Without dead ends: 115 [2021-11-23 13:08:43,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-23 13:08:43,146 INFO L933 BasicCegarLoop]: 126 mSDtfsCounter, 20 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 35 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:43,147 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 624 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 35 Unchecked, 0.3s Time] [2021-11-23 13:08:43,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2021-11-23 13:08:43,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 105. [2021-11-23 13:08:43,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.2884615384615385) internal successors, (134), 104 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:43,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 134 transitions. [2021-11-23 13:08:43,156 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 134 transitions. Word has length 26 [2021-11-23 13:08:43,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:43,157 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 134 transitions. [2021-11-23 13:08:43,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:43,157 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 134 transitions. [2021-11-23 13:08:43,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 13:08:43,158 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:43,158 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:43,177 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (9)] Ended with exit code 0 [2021-11-23 13:08:43,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:43,378 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:43,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:43,378 INFO L85 PathProgramCache]: Analyzing trace with hash 2115534276, now seen corresponding path program 1 times [2021-11-23 13:08:43,378 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:43,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1511514797] [2021-11-23 13:08:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:43,379 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:43,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:43,379 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:43,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-23 13:08:43,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:43,517 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-23 13:08:43,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:46,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:46,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:47,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:47,324 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:47,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1511514797] [2021-11-23 13:08:47,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1511514797] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:47,325 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:47,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-23 13:08:47,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967715303] [2021-11-23 13:08:47,325 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:47,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:08:47,326 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:47,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:08:47,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:08:47,327 INFO L87 Difference]: Start difference. First operand 105 states and 134 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:47,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:47,696 INFO L93 Difference]: Finished difference Result 186 states and 237 transitions. [2021-11-23 13:08:47,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-23 13:08:47,698 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 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 26 [2021-11-23 13:08:47,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:47,700 INFO L225 Difference]: With dead ends: 186 [2021-11-23 13:08:47,700 INFO L226 Difference]: Without dead ends: 176 [2021-11-23 13:08:47,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 2 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:08:47,701 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 118 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 1194 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 34 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:47,702 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 1194 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 34 Unchecked, 0.4s Time] [2021-11-23 13:08:47,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2021-11-23 13:08:47,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 105. [2021-11-23 13:08:47,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 104 states have (on average 1.2788461538461537) internal successors, (133), 104 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:47,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 133 transitions. [2021-11-23 13:08:47,711 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 133 transitions. Word has length 26 [2021-11-23 13:08:47,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:47,712 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 133 transitions. [2021-11-23 13:08:47,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:47,712 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 133 transitions. [2021-11-23 13:08:47,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-11-23 13:08:47,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:47,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:47,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-23 13:08:47,918 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:47,918 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:47,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:47,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1722507266, now seen corresponding path program 1 times [2021-11-23 13:08:47,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:47,919 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [668651371] [2021-11-23 13:08:47,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:47,919 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:47,919 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:47,920 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:47,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-23 13:08:48,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:48,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-23 13:08:48,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:49,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:49,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:50,270 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:50,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [668651371] [2021-11-23 13:08:50,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [668651371] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:50,271 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:50,271 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-23 13:08:50,271 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578880800] [2021-11-23 13:08:50,271 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:50,271 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-23 13:08:50,271 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:50,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-23 13:08:50,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:08:50,273 INFO L87 Difference]: Start difference. First operand 105 states and 133 transitions. Second operand has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:50,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:50,819 INFO L93 Difference]: Finished difference Result 184 states and 234 transitions. [2021-11-23 13:08:50,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-23 13:08:50,823 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 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 26 [2021-11-23 13:08:50,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:50,824 INFO L225 Difference]: With dead ends: 184 [2021-11-23 13:08:50,824 INFO L226 Difference]: Without dead ends: 173 [2021-11-23 13:08:50,825 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-23 13:08:50,826 INFO L933 BasicCegarLoop]: 129 mSDtfsCounter, 99 mSDsluCounter, 351 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:50,827 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 480 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 8 Unchecked, 0.4s Time] [2021-11-23 13:08:50,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2021-11-23 13:08:50,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 102. [2021-11-23 13:08:50,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 101 states have (on average 1.2772277227722773) internal successors, (129), 101 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:50,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 129 transitions. [2021-11-23 13:08:50,836 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 129 transitions. Word has length 26 [2021-11-23 13:08:50,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:50,836 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 129 transitions. [2021-11-23 13:08:50,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.3) internal successors, (43), 10 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:50,836 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 129 transitions. [2021-11-23 13:08:50,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-11-23 13:08:50,838 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:50,838 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:50,858 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (11)] Ended with exit code 0 [2021-11-23 13:08:51,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:51,053 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:51,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:51,053 INFO L85 PathProgramCache]: Analyzing trace with hash -520265088, now seen corresponding path program 1 times [2021-11-23 13:08:51,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:51,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531187886] [2021-11-23 13:08:51,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:51,054 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:51,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:51,055 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:51,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2021-11-23 13:08:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:51,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 13:08:51,192 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:52,672 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:52,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:08:53,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:53,903 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:08:53,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531187886] [2021-11-23 13:08:53,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531187886] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:08:53,903 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:08:53,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-23 13:08:53,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263074762] [2021-11-23 13:08:53,904 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:08:53,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:08:53,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:08:53,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:08:53,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:08:53,905 INFO L87 Difference]: Start difference. First operand 102 states and 129 transitions. Second operand has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:53,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:08:53,970 INFO L93 Difference]: Finished difference Result 173 states and 223 transitions. [2021-11-23 13:08:53,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:08:53,971 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 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 29 [2021-11-23 13:08:53,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:08:53,971 INFO L225 Difference]: With dead ends: 173 [2021-11-23 13:08:53,971 INFO L226 Difference]: Without dead ends: 93 [2021-11-23 13:08:53,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:08:53,972 INFO L933 BasicCegarLoop]: 108 mSDtfsCounter, 12 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 817 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 21 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:08:53,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 817 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 21 Unchecked, 0.1s Time] [2021-11-23 13:08:53,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-11-23 13:08:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 92. [2021-11-23 13:08:53,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:53,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 116 transitions. [2021-11-23 13:08:53,980 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 116 transitions. Word has length 29 [2021-11-23 13:08:53,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:08:53,980 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 116 transitions. [2021-11-23 13:08:53,980 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.083333333333333) internal successors, (49), 12 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:08:53,980 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 116 transitions. [2021-11-23 13:08:53,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-23 13:08:53,981 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:08:53,982 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:08:53,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2021-11-23 13:08:54,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:08:54,190 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:08:54,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:08:54,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1951072080, now seen corresponding path program 1 times [2021-11-23 13:08:54,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:08:54,191 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1424993486] [2021-11-23 13:08:54,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:08:54,191 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:08:54,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:08:54,192 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:08:54,205 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2021-11-23 13:08:54,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:08:54,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-23 13:08:54,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:08:56,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:08:56,057 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:00,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:00,526 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:00,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1424993486] [2021-11-23 13:09:00,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1424993486] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:00,526 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:00,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-23 13:09:00,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304877528] [2021-11-23 13:09:00,527 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:00,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-23 13:09:00,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:00,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-23 13:09:00,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:09:00,528 INFO L87 Difference]: Start difference. First operand 92 states and 116 transitions. Second operand has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:00,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:00,677 INFO L93 Difference]: Finished difference Result 164 states and 211 transitions. [2021-11-23 13:09:00,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:09:00,678 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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 34 [2021-11-23 13:09:00,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:00,680 INFO L225 Difference]: With dead ends: 164 [2021-11-23 13:09:00,680 INFO L226 Difference]: Without dead ends: 92 [2021-11-23 13:09:00,681 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-11-23 13:09:00,681 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 7 mSDsluCounter, 811 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:00,682 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 920 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 31 Unchecked, 0.1s Time] [2021-11-23 13:09:00,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-23 13:09:00,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-23 13:09:00,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2637362637362637) internal successors, (115), 91 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:00,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 115 transitions. [2021-11-23 13:09:00,690 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 115 transitions. Word has length 34 [2021-11-23 13:09:00,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:00,690 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 115 transitions. [2021-11-23 13:09:00,691 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:00,691 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 115 transitions. [2021-11-23 13:09:00,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-11-23 13:09:00,692 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:00,693 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:00,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2021-11-23 13:09:00,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:00,906 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:00,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:00,906 INFO L85 PathProgramCache]: Analyzing trace with hash -854519211, now seen corresponding path program 1 times [2021-11-23 13:09:00,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:00,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91409627] [2021-11-23 13:09:00,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:00,907 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:00,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:00,909 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:00,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2021-11-23 13:09:01,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:01,402 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-23 13:09:01,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:01,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:01,845 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:02,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:02,365 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:02,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91409627] [2021-11-23 13:09:02,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91409627] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:02,365 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:02,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-23 13:09:02,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886320397] [2021-11-23 13:09:02,365 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:02,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-23 13:09:02,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:02,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-23 13:09:02,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:09:02,366 INFO L87 Difference]: Start difference. First operand 92 states and 115 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:02,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:02,481 INFO L93 Difference]: Finished difference Result 100 states and 122 transitions. [2021-11-23 13:09:02,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 13:09:02,483 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 39 [2021-11-23 13:09:02,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:02,484 INFO L225 Difference]: With dead ends: 100 [2021-11-23 13:09:02,484 INFO L226 Difference]: Without dead ends: 92 [2021-11-23 13:09:02,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-23 13:09:02,486 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 98 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:02,486 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 245 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 13:09:02,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-11-23 13:09:02,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2021-11-23 13:09:02,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 91 states have (on average 1.2527472527472527) internal successors, (114), 91 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:02,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 114 transitions. [2021-11-23 13:09:02,494 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 114 transitions. Word has length 39 [2021-11-23 13:09:02,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:02,495 INFO L470 AbstractCegarLoop]: Abstraction has 92 states and 114 transitions. [2021-11-23 13:09:02,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 114 transitions. [2021-11-23 13:09:02,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-23 13:09:02,496 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:09:02,496 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:02,522 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:02,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:02,718 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:09:02,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:09:02,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1954784626, now seen corresponding path program 1 times [2021-11-23 13:09:02,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 13:09:02,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2026423298] [2021-11-23 13:09:02,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:09:02,719 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 13:09:02,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 13:09:02,720 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 13:09:02,731 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2021-11-23 13:09:03,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:09:03,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-23 13:09:03,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 13:09:05,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:05,729 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 13:09:15,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 13:09:15,172 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 13:09:15,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2026423298] [2021-11-23 13:09:15,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2026423298] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 13:09:15,172 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:09:15,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 8] imperfect sequences [] total 13 [2021-11-23 13:09:15,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643184370] [2021-11-23 13:09:15,173 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 13:09:15,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-23 13:09:15,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 13:09:15,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-23 13:09:15,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:09:15,174 INFO L87 Difference]: Start difference. First operand 92 states and 114 transitions. Second operand has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:15,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:09:15,194 INFO L93 Difference]: Finished difference Result 92 states and 114 transitions. [2021-11-23 13:09:15,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-23 13:09:15,195 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 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 42 [2021-11-23 13:09:15,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:09:15,195 INFO L225 Difference]: With dead ends: 92 [2021-11-23 13:09:15,195 INFO L226 Difference]: Without dead ends: 0 [2021-11-23 13:09:15,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 70 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-11-23 13:09:15,196 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 13:09:15,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 34 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 8 Unchecked, 0.0s Time] [2021-11-23 13:09:15,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-23 13:09:15,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-23 13:09:15,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:15,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-23 13:09:15,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 42 [2021-11-23 13:09:15,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:09:15,198 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-23 13:09:15,198 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.384615384615385) internal successors, (57), 13 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:09:15,198 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-23 13:09:15,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-23 13:09:15,200 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:09:15,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2021-11-23 13:09:15,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 13:09:15,407 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-23 13:09:17,120 INFO L858 garLoopResultBuilder]: For program point L168(lines 168 172) no Hoare annotation was computed. [2021-11-23 13:09:17,120 INFO L858 garLoopResultBuilder]: For program point L168-1(lines 159 173) no Hoare annotation was computed. [2021-11-23 13:09:17,120 INFO L858 garLoopResultBuilder]: For program point L202-1(lines 202 206) no Hoare annotation was computed. [2021-11-23 13:09:17,120 INFO L854 garLoopResultBuilder]: At program point L202-2(lines 202 206) the Hoare annotation is: false [2021-11-23 13:09:17,120 INFO L858 garLoopResultBuilder]: For program point L136-1(lines 136 140) no Hoare annotation was computed. [2021-11-23 13:09:17,120 INFO L858 garLoopResultBuilder]: For program point L202-3(lines 202 206) no Hoare annotation was computed. [2021-11-23 13:09:17,120 INFO L854 garLoopResultBuilder]: At program point L136-2(lines 136 140) the Hoare annotation is: false [2021-11-23 13:09:17,121 INFO L858 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-11-23 13:09:17,121 INFO L858 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-11-23 13:09:17,121 INFO L858 garLoopResultBuilder]: For program point L37-3(lines 37 41) no Hoare annotation was computed. [2021-11-23 13:09:17,121 INFO L858 garLoopResultBuilder]: For program point L37-5(lines 37 41) no Hoare annotation was computed. [2021-11-23 13:09:17,122 INFO L858 garLoopResultBuilder]: For program point L236(lines 236 239) no Hoare annotation was computed. [2021-11-23 13:09:17,122 INFO L858 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-11-23 13:09:17,122 INFO L854 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2021-11-23 13:09:17,122 INFO L858 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-11-23 13:09:17,122 INFO L858 garLoopResultBuilder]: For program point L38-7(lines 38 39) no Hoare annotation was computed. [2021-11-23 13:09:17,122 INFO L854 garLoopResultBuilder]: At program point L38-8(lines 38 39) the Hoare annotation is: false [2021-11-23 13:09:17,123 INFO L858 garLoopResultBuilder]: For program point L38-9(lines 38 39) no Hoare annotation was computed. [2021-11-23 13:09:17,123 INFO L858 garLoopResultBuilder]: For program point L237(line 237) no Hoare annotation was computed. [2021-11-23 13:09:17,123 INFO L861 garLoopResultBuilder]: At program point L240(lines 224 241) the Hoare annotation is: true [2021-11-23 13:09:17,123 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 145) no Hoare annotation was computed. [2021-11-23 13:09:17,123 INFO L858 garLoopResultBuilder]: For program point L141-1(lines 123 146) no Hoare annotation was computed. [2021-11-23 13:09:17,123 INFO L858 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-11-23 13:09:17,123 INFO L854 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2021-11-23 13:09:17,130 INFO L858 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-11-23 13:09:17,130 INFO L858 garLoopResultBuilder]: For program point L75-5(lines 75 79) no Hoare annotation was computed. [2021-11-23 13:09:17,130 INFO L854 garLoopResultBuilder]: At program point L75-6(lines 75 79) the Hoare annotation is: false [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L75-7(lines 75 79) no Hoare annotation was computed. [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 113) no Hoare annotation was computed. [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L109-1(lines 83 210) no Hoare annotation was computed. [2021-11-23 13:09:17,131 INFO L854 garLoopResultBuilder]: At program point L209(lines 83 210) the Hoare annotation is: (or (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27| (_ BitVec 32))) (let ((.cse1 (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (.cse0 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27|) .cse0) (= |ULTIMATE.start___ieee754_hypotf_#res#1| (fp.add roundNearestTiesToEven (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)))) (bvsgt (bvadd .cse1 (bvneg .cse0)) (_ bv251658240 32))))) (and (forall ((|v_skolemized_q#valueAsBitvector_16| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_16|) (_ bv2139095040 32)) (not (= |ULTIMATE.start___ieee754_hypotf_#res#1| (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_16|)))))) (not (bvsgt (bvadd |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvneg |ULTIMATE.start___ieee754_hypotf_~hb~0#1|)) (_ bv251658240 32))))) [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L44-3(lines 44 45) no Hoare annotation was computed. [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L44-5(lines 44 45) no Hoare annotation was computed. [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 200) no Hoare annotation was computed. [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L177-2(lines 83 210) no Hoare annotation was computed. [2021-11-23 13:09:17,131 INFO L858 garLoopResultBuilder]: For program point L178-1(lines 178 182) no Hoare annotation was computed. [2021-11-23 13:09:17,132 INFO L854 garLoopResultBuilder]: At program point L178-2(lines 178 182) the Hoare annotation is: false [2021-11-23 13:09:17,132 INFO L858 garLoopResultBuilder]: For program point L178-3(lines 178 182) no Hoare annotation was computed. [2021-11-23 13:09:17,132 INFO L854 garLoopResultBuilder]: At program point L80(lines 16 81) the Hoare annotation is: false [2021-11-23 13:09:17,132 INFO L854 garLoopResultBuilder]: At program point L80-1(lines 16 81) the Hoare annotation is: false [2021-11-23 13:09:17,132 INFO L858 garLoopResultBuilder]: For program point L147(lines 147 174) no Hoare annotation was computed. [2021-11-23 13:09:17,132 INFO L858 garLoopResultBuilder]: For program point L114(lines 114 118) no Hoare annotation was computed. [2021-11-23 13:09:17,132 INFO L858 garLoopResultBuilder]: For program point L114-1(lines 83 210) no Hoare annotation was computed. [2021-11-23 13:09:17,133 INFO L858 garLoopResultBuilder]: For program point L114-2(lines 83 210) no Hoare annotation was computed. [2021-11-23 13:09:17,133 INFO L858 garLoopResultBuilder]: For program point L148(lines 148 173) no Hoare annotation was computed. [2021-11-23 13:09:17,133 INFO L858 garLoopResultBuilder]: For program point L215-1(lines 215 219) no Hoare annotation was computed. [2021-11-23 13:09:17,133 INFO L854 garLoopResultBuilder]: At program point L215-2(lines 215 219) the Hoare annotation is: (or (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5| (_ BitVec 32)) (|v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27| (_ BitVec 32))) (let ((.cse0 (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_hypotf_~#sf_u~2#1.base_5|) (_ bv0 32)))) (and (= (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_26|)) (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) (= |ULTIMATE.start_isinf_float_~x#1| (fp.add roundNearestTiesToEven (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1)))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~hb~0#1_27|) .cse1) (bvsgt (bvadd .cse0 (bvneg .cse1)) (_ bv251658240 32))))) (and (not (bvsgt (bvadd |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvneg |ULTIMATE.start___ieee754_hypotf_~hb~0#1|)) (_ bv251658240 32))) (forall ((|v_skolemized_q#valueAsBitvector_16| (_ BitVec 32))) (or (= (bvand (_ bv2147483647 32) |v_skolemized_q#valueAsBitvector_16|) (_ bv2139095040 32)) (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_16|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_16|)) |ULTIMATE.start_isinf_float_~x#1|)))))) [2021-11-23 13:09:17,133 INFO L858 garLoopResultBuilder]: For program point L215-3(lines 215 219) no Hoare annotation was computed. [2021-11-23 13:09:17,133 INFO L858 garLoopResultBuilder]: For program point L150(lines 150 173) no Hoare annotation was computed. [2021-11-23 13:09:17,133 INFO L858 garLoopResultBuilder]: For program point L151-1(lines 151 155) no Hoare annotation was computed. [2021-11-23 13:09:17,133 INFO L854 garLoopResultBuilder]: At program point L151-2(lines 151 155) the Hoare annotation is: false [2021-11-23 13:09:17,133 INFO L858 garLoopResultBuilder]: For program point L151-3(lines 151 155) no Hoare annotation was computed. [2021-11-23 13:09:17,133 INFO L854 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2021-11-23 13:09:17,133 INFO L858 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-11-23 13:09:17,133 INFO L854 garLoopResultBuilder]: At program point L52-6(lines 52 61) the Hoare annotation is: false [2021-11-23 13:09:17,134 INFO L858 garLoopResultBuilder]: For program point L52-7(lines 16 81) no Hoare annotation was computed. [2021-11-23 13:09:17,134 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-23 13:09:17,134 INFO L858 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-11-23 13:09:17,134 INFO L858 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-11-23 13:09:17,134 INFO L854 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) |ULTIMATE.start___ieee754_hypotf_~x#1|)) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 13:09:17,134 INFO L858 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-11-23 13:09:17,134 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-23 13:09:17,135 INFO L858 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-11-23 13:09:17,135 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: false [2021-11-23 13:09:17,135 INFO L858 garLoopResultBuilder]: For program point L54-3(lines 54 58) no Hoare annotation was computed. [2021-11-23 13:09:17,135 INFO L858 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-11-23 13:09:17,135 INFO L858 garLoopResultBuilder]: For program point L54-5(lines 54 58) no Hoare annotation was computed. [2021-11-23 13:09:17,135 INFO L858 garLoopResultBuilder]: For program point L21-5(lines 21 25) no Hoare annotation was computed. [2021-11-23 13:09:17,135 INFO L854 garLoopResultBuilder]: At program point L21-6(lines 21 25) the Hoare annotation is: false [2021-11-23 13:09:17,135 INFO L858 garLoopResultBuilder]: For program point L21-7(lines 21 25) no Hoare annotation was computed. [2021-11-23 13:09:17,135 INFO L858 garLoopResultBuilder]: For program point L187-1(lines 187 191) no Hoare annotation was computed. [2021-11-23 13:09:17,135 INFO L854 garLoopResultBuilder]: At program point L187-2(lines 187 191) the Hoare annotation is: false [2021-11-23 13:09:17,135 INFO L858 garLoopResultBuilder]: For program point L187-3(lines 187 191) no Hoare annotation was computed. [2021-11-23 13:09:17,135 INFO L854 garLoopResultBuilder]: At program point L221(lines 213 222) the Hoare annotation is: (or (= |ULTIMATE.start_isinf_float_#res#1| (_ bv1 32)) (and (not (= |ULTIMATE.start_isinf_float_#res#1| (_ bv0 32))) (not (bvsgt (bvadd |ULTIMATE.start___ieee754_hypotf_~ha~0#1| (bvneg |ULTIMATE.start___ieee754_hypotf_~hb~0#1|)) (_ bv251658240 32))))) [2021-11-23 13:09:17,136 INFO L858 garLoopResultBuilder]: For program point L123(lines 123 146) no Hoare annotation was computed. [2021-11-23 13:09:17,136 INFO L858 garLoopResultBuilder]: For program point L123-1(lines 83 210) no Hoare annotation was computed. [2021-11-23 13:09:17,136 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-23 13:09:17,136 INFO L858 garLoopResultBuilder]: For program point L124(lines 124 131) no Hoare annotation was computed. [2021-11-23 13:09:17,136 INFO L858 garLoopResultBuilder]: For program point L126(lines 126 127) no Hoare annotation was computed. [2021-11-23 13:09:17,136 INFO L858 garLoopResultBuilder]: For program point L93-1(lines 93 97) no Hoare annotation was computed. [2021-11-23 13:09:17,136 INFO L858 garLoopResultBuilder]: For program point L126-2(lines 124 131) no Hoare annotation was computed. [2021-11-23 13:09:17,137 INFO L854 garLoopResultBuilder]: At program point L93-2(lines 93 97) the Hoare annotation is: (and (exists ((|v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80| (_ BitVec 32))) (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode 1.0)) (_ +zero 8 24)) (fp ((_ extract 31 31) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|) ((_ extract 30 23) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|) ((_ extract 22 0) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|)))) (= (bvand (_ bv2147483647 32) |v_ULTIMATE.start___ieee754_hypotf_~ha~0#1_80|) |ULTIMATE.start___ieee754_hypotf_~ha~0#1|))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-23 13:09:17,137 INFO L858 garLoopResultBuilder]: For program point L93-3(lines 93 97) no Hoare annotation was computed. [2021-11-23 13:09:17,137 INFO L858 garLoopResultBuilder]: For program point L193-1(lines 193 197) no Hoare annotation was computed. [2021-11-23 13:09:17,137 INFO L854 garLoopResultBuilder]: At program point L193-2(lines 193 197) the Hoare annotation is: false [2021-11-23 13:09:17,137 INFO L858 garLoopResultBuilder]: For program point L193-3(lines 193 197) no Hoare annotation was computed. [2021-11-23 13:09:17,137 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-23 13:09:17,138 INFO L858 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-11-23 13:09:17,138 INFO L858 garLoopResultBuilder]: For program point L28-1(lines 28 29) no Hoare annotation was computed. [2021-11-23 13:09:17,138 INFO L858 garLoopResultBuilder]: For program point L128-1(lines 128 129) no Hoare annotation was computed. [2021-11-23 13:09:17,138 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-11-23 13:09:17,138 INFO L858 garLoopResultBuilder]: For program point L63-1(lines 63 72) no Hoare annotation was computed. [2021-11-23 13:09:17,138 INFO L858 garLoopResultBuilder]: For program point L163-1(lines 163 167) no Hoare annotation was computed. [2021-11-23 13:09:17,138 INFO L854 garLoopResultBuilder]: At program point L163-2(lines 163 167) the Hoare annotation is: false [2021-11-23 13:09:17,139 INFO L858 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-11-23 13:09:17,139 INFO L858 garLoopResultBuilder]: For program point L31-1(lines 31 32) no Hoare annotation was computed. [2021-11-23 13:09:17,139 INFO L858 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-11-23 13:09:17,139 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-23 13:09:17,139 INFO L858 garLoopResultBuilder]: For program point L65-2(lines 65 71) no Hoare annotation was computed. [2021-11-23 13:09:17,139 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 237) no Hoare annotation was computed. [2021-11-23 13:09:17,139 INFO L858 garLoopResultBuilder]: For program point L99(lines 99 108) no Hoare annotation was computed. [2021-11-23 13:09:17,140 INFO L858 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-11-23 13:09:17,140 INFO L858 garLoopResultBuilder]: For program point L33-1(lines 33 34) no Hoare annotation was computed. [2021-11-23 13:09:17,140 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-11-23 13:09:17,140 INFO L858 garLoopResultBuilder]: For program point L67-3(lines 67 70) no Hoare annotation was computed. [2021-11-23 13:09:17,143 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:09:17,145 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:09:17,150 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 13:09:17,153 INFO L158 Benchmark]: Toolchain (without parser) took 124024.17ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 59.4MB in the beginning and 74.6MB in the end (delta: -15.2MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2021-11-23 13:09:17,153 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:09:17,153 INFO L158 Benchmark]: CACSL2BoogieTranslator took 369.63ms. Allocated memory is still 75.5MB. Free memory was 59.2MB in the beginning and 56.5MB in the end (delta: 2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 13:09:17,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.79ms. Allocated memory is still 75.5MB. Free memory was 56.5MB in the beginning and 53.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-23 13:09:17,154 INFO L158 Benchmark]: Boogie Preprocessor took 108.54ms. Allocated memory is still 75.5MB. Free memory was 53.5MB in the beginning and 50.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:09:17,155 INFO L158 Benchmark]: RCFGBuilder took 7604.26ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 50.7MB in the beginning and 69.8MB in the end (delta: -19.2MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2021-11-23 13:09:17,155 INFO L158 Benchmark]: TraceAbstraction took 115865.96ms. Allocated memory is still 98.6MB. Free memory was 68.9MB in the beginning and 74.6MB in the end (delta: -5.7MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2021-11-23 13:09:17,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 75.5MB. Free memory is still 57.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 369.63ms. Allocated memory is still 75.5MB. Free memory was 59.2MB in the beginning and 56.5MB in the end (delta: 2.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.79ms. Allocated memory is still 75.5MB. Free memory was 56.5MB in the beginning and 53.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 108.54ms. Allocated memory is still 75.5MB. Free memory was 53.5MB in the beginning and 50.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 7604.26ms. Allocated memory was 75.5MB in the beginning and 98.6MB in the end (delta: 23.1MB). Free memory was 50.7MB in the beginning and 69.8MB in the end (delta: -19.2MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * TraceAbstraction took 115865.96ms. Allocated memory is still 98.6MB. Free memory was 68.9MB in the beginning and 74.6MB in the end (delta: -5.7MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 237]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 115.8s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 7.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 592 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 592 mSDsluCounter, 12440 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 901 IncrementalHoareTripleChecker+Unchecked, 10759 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 1140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 1681 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 744 GetRequests, 589 SyntacticMatches, 9 SemanticMatches, 146 ConstructedPredicates, 2 IntricatePredicates, 4 DeprecatedPredicates, 331 ImplicationChecksByTransitivity, 71.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred in iteration=7, InterpolantAutomatonStates: 113, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 198 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 23 PreInvPairs, 38 NumberOfFragments, 275 HoareAnnotationTreeSize, 23 FomulaSimplifications, 576 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 453 FormulaSimplificationTreeSizeReductionInter, 1.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 100.1s InterpolantComputationTime, 380 NumberOfCodeBlocks, 380 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 732 ConstructedInterpolants, 248 QuantifiedInterpolants, 7266 SizeOfPredicates, 115 NumberOfNonLiveVariables, 1338 ConjunctsInSsa, 161 ConjunctsInUnsatCore, 28 InterpolantComputations, 28 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 13:09:17,327 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dcfa5c6a-c529-48ff-89c9-573461ab1c04/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (bvneg (_ BitVec 32) (_ BitVec 32)) not yet implemented, please contact Matthias