./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1251b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1251b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt --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 0dca3295f12b1ef36cf31c463cf879069525072f .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1251b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt --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 0dca3295f12b1ef36cf31c463cf879069525072f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:12:15,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:12:15,393 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:12:15,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:12:15,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:12:15,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:12:15,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:12:15,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:12:15,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:12:15,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:12:15,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:12:15,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:12:15,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:12:15,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:12:15,459 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:12:15,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:12:15,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:12:15,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:12:15,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:12:15,475 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:12:15,477 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:12:15,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:12:15,481 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:12:15,482 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:12:15,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:12:15,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:12:15,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:12:15,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:12:15,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:12:15,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:12:15,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:12:15,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:12:15,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:12:15,499 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:12:15,501 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:12:15,501 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:12:15,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:12:15,502 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:12:15,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:12:15,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:12:15,503 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:12:15,504 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:12:15,543 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:12:15,544 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:12:15,544 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:12:15,544 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:12:15,545 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:12:15,545 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:12:15,546 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:12:15,546 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:12:15,548 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:12:15,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:12:15,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:12:15,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:12:15,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:12:15,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:12:15,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:12:15,551 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:12:15,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:12:15,551 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:12:15,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:12:15,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:12:15,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:12:15,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:12:15,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:12:15,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:12:15,553 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:12:15,553 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:12:15,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:12:15,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:12:15,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:12:15,555 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:12:15,555 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_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dca3295f12b1ef36cf31c463cf879069525072f [2021-10-13 00:12:15,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:12:15,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:12:15,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:12:15,865 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:12:15,865 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:12:15,866 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/double_req_bl_1251b.c [2021-10-13 00:12:15,949 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data/b861f811b/389b2ac2b9b74c7eb65e0b8fe265d474/FLAG8659c9b44 [2021-10-13 00:12:16,352 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:12:16,353 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/sv-benchmarks/c/float-newlib/double_req_bl_1251b.c [2021-10-13 00:12:16,363 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data/b861f811b/389b2ac2b9b74c7eb65e0b8fe265d474/FLAG8659c9b44 [2021-10-13 00:12:16,735 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data/b861f811b/389b2ac2b9b74c7eb65e0b8fe265d474 [2021-10-13 00:12:16,737 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:12:16,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:12:16,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:12:16,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:12:16,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:12:16,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:12:16" (1/1) ... [2021-10-13 00:12:16,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731b5135 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:16, skipping insertion in model container [2021-10-13 00:12:16,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:12:16" (1/1) ... [2021-10-13 00:12:16,757 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:12:16,771 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:12:16,957 WARN L228 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_a7f70869-9f67-42a5-8996-87d9ba827bdd/sv-benchmarks/c/float-newlib/double_req_bl_1251b.c[2080,2093] [2021-10-13 00:12:16,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:12:16,968 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:12:16,999 WARN L228 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_a7f70869-9f67-42a5-8996-87d9ba827bdd/sv-benchmarks/c/float-newlib/double_req_bl_1251b.c[2080,2093] [2021-10-13 00:12:16,999 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:12:17,018 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:12:17,018 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17 WrapperNode [2021-10-13 00:12:17,018 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:12:17,019 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:12:17,020 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:12:17,020 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:12:17,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:12:17,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:12:17,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:12:17,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:12:17,093 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,093 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,100 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,124 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,128 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:12:17,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:12:17,129 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:12:17,129 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:12:17,139 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (1/1) ... [2021-10-13 00:12:17,148 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:12:17,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:12:17,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:12:17,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:12:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:12:17,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:12:17,231 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 00:12:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:12:17,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:12:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 00:12:17,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:12:17,556 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:12:17,556 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-13 00:12:17,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:12:17 BoogieIcfgContainer [2021-10-13 00:12:17,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:12:17,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:12:17,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:12:17,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:12:17,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:12:16" (1/3) ... [2021-10-13 00:12:17,582 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba241ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:12:17, skipping insertion in model container [2021-10-13 00:12:17,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:17" (2/3) ... [2021-10-13 00:12:17,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ba241ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:12:17, skipping insertion in model container [2021-10-13 00:12:17,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:12:17" (3/3) ... [2021-10-13 00:12:17,584 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2021-10-13 00:12:17,589 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:12:17,589 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:12:17,674 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:12:17,680 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:12:17,680 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:12:17,695 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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) [2021-10-13 00:12:17,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 00:12:17,699 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:17,700 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:17,700 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:12:17,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:17,706 INFO L82 PathProgramCache]: Analyzing trace with hash -124750094, now seen corresponding path program 1 times [2021-10-13 00:12:17,715 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:12:17,715 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215274543] [2021-10-13 00:12:17,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:17,717 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:12:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:17,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:17,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:12:17,857 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215274543] [2021-10-13 00:12:17,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215274543] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:12:17,858 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:12:17,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:12:17,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349609767] [2021-10-13 00:12:17,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:12:17,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:12:17,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:12:17,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:12:17,879 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-13 00:12:17,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:17,895 INFO L93 Difference]: Finished difference Result 56 states and 87 transitions. [2021-10-13 00:12:17,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:12:17,896 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-10-13 00:12:17,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:17,904 INFO L225 Difference]: With dead ends: 56 [2021-10-13 00:12:17,904 INFO L226 Difference]: Without dead ends: 26 [2021-10-13 00:12:17,907 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:12:17,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-13 00:12:17,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-13 00:12:17,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 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) [2021-10-13 00:12:17,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-10-13 00:12:17,936 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 11 [2021-10-13 00:12:17,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:17,937 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-10-13 00:12:17,937 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-13 00:12:17,937 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-10-13 00:12:17,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:12:17,938 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:17,938 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:17,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:12:17,939 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:12:17,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:17,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1352831344, now seen corresponding path program 1 times [2021-10-13 00:12:17,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:12:17,940 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133754339] [2021-10-13 00:12:17,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:17,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:12:17,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:18,017 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:12:18,017 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133754339] [2021-10-13 00:12:18,017 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133754339] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:12:18,017 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:12:18,018 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:12:18,018 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968938499] [2021-10-13 00:12:18,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:12:18,019 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:12:18,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:12:18,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:12:18,021 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:18,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:18,069 INFO L93 Difference]: Finished difference Result 40 states and 51 transitions. [2021-10-13 00:12:18,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:12:18,070 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 00:12:18,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:18,071 INFO L225 Difference]: With dead ends: 40 [2021-10-13 00:12:18,071 INFO L226 Difference]: Without dead ends: 36 [2021-10-13 00:12:18,072 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:12:18,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-13 00:12:18,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 28. [2021-10-13 00:12:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 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) [2021-10-13 00:12:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-10-13 00:12:18,078 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 12 [2021-10-13 00:12:18,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:18,078 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-10-13 00:12:18,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:18,079 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-10-13 00:12:18,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 00:12:18,079 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:18,080 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:18,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:12:18,080 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:12:18,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:18,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1913129681, now seen corresponding path program 1 times [2021-10-13 00:12:18,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:12:18,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231123027] [2021-10-13 00:12:18,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:18,082 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:12:18,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:18,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:18,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:12:18,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231123027] [2021-10-13 00:12:18,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231123027] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:12:18,139 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:12:18,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:12:18,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066910273] [2021-10-13 00:12:18,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:12:18,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:12:18,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:12:18,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:12:18,142 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:18,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:18,182 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2021-10-13 00:12:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:12:18,182 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-13 00:12:18,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:18,183 INFO L225 Difference]: With dead ends: 42 [2021-10-13 00:12:18,183 INFO L226 Difference]: Without dead ends: 38 [2021-10-13 00:12:18,184 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:12:18,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-13 00:12:18,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2021-10-13 00:12:18,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 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) [2021-10-13 00:12:18,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-10-13 00:12:18,189 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 13 [2021-10-13 00:12:18,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:18,189 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-10-13 00:12:18,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:18,190 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-10-13 00:12:18,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:12:18,191 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:18,191 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:18,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:12:18,191 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:12:18,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:18,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1959363189, now seen corresponding path program 1 times [2021-10-13 00:12:18,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:12:18,192 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363443445] [2021-10-13 00:12:18,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:18,193 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:12:18,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:18,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:18,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:12:18,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363443445] [2021-10-13 00:12:18,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363443445] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:12:18,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:12:18,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:12:18,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617118653] [2021-10-13 00:12:18,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:12:18,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:12:18,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:12:18,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:12:18,266 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:18,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:18,303 INFO L93 Difference]: Finished difference Result 44 states and 55 transitions. [2021-10-13 00:12:18,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:12:18,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-13 00:12:18,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:18,305 INFO L225 Difference]: With dead ends: 44 [2021-10-13 00:12:18,305 INFO L226 Difference]: Without dead ends: 40 [2021-10-13 00:12:18,306 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:12:18,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-10-13 00:12:18,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 28. [2021-10-13 00:12:18,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 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) [2021-10-13 00:12:18,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-10-13 00:12:18,311 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 14 [2021-10-13 00:12:18,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:18,311 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-10-13 00:12:18,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:18,312 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-10-13 00:12:18,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:12:18,312 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:18,313 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:18,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:12:18,313 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:12:18,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:18,314 INFO L82 PathProgramCache]: Analyzing trace with hash 1045511114, now seen corresponding path program 1 times [2021-10-13 00:12:18,314 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:12:18,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753207517] [2021-10-13 00:12:18,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:18,315 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:12:18,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:18,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:18,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:12:18,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753207517] [2021-10-13 00:12:18,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753207517] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:12:18,415 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:12:18,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:12:18,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799697905] [2021-10-13 00:12:18,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:12:18,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:12:18,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:12:18,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:12:18,419 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:18,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:18,487 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2021-10-13 00:12:18,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:12:18,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 00:12:18,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:18,491 INFO L225 Difference]: With dead ends: 42 [2021-10-13 00:12:18,491 INFO L226 Difference]: Without dead ends: 38 [2021-10-13 00:12:18,492 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:12:18,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-13 00:12:18,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 28. [2021-10-13 00:12:18,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 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) [2021-10-13 00:12:18,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-10-13 00:12:18,500 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 15 [2021-10-13 00:12:18,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:18,501 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-10-13 00:12:18,501 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:18,501 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-10-13 00:12:18,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:12:18,502 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:18,502 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:18,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:12:18,503 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:12:18,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:18,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1102769416, now seen corresponding path program 1 times [2021-10-13 00:12:18,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:12:18,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857343648] [2021-10-13 00:12:18,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:18,506 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:12:18,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:12:18,555 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:12:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:12:18,599 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:12:18,605 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 00:12:18,606 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:12:18,609 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:12:18,615 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:12:18,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:12:18 BoogieIcfgContainer [2021-10-13 00:12:18,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:12:18,656 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:12:18,657 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:12:18,657 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:12:18,657 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:12:17" (3/4) ... [2021-10-13 00:12:18,659 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 00:12:18,660 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:12:18,662 INFO L168 Benchmark]: Toolchain (without parser) took 1921.90 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 52.1 MB in the beginning and 72.0 MB in the end (delta: -19.9 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:12:18,662 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory was 58.7 MB in the beginning and 58.7 MB in the end (delta: 26.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:12:18,663 INFO L168 Benchmark]: CACSL2BoogieTranslator took 277.25 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 51.9 MB in the beginning and 90.4 MB in the end (delta: -38.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:12:18,664 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.17 ms. Allocated memory is still 115.3 MB. Free memory was 90.4 MB in the beginning and 88.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:12:18,664 INFO L168 Benchmark]: Boogie Preprocessor took 42.78 ms. Allocated memory is still 115.3 MB. Free memory was 88.9 MB in the beginning and 87.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:12:18,665 INFO L168 Benchmark]: RCFGBuilder took 429.28 ms. Allocated memory is still 115.3 MB. Free memory was 87.3 MB in the beginning and 74.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-13 00:12:18,666 INFO L168 Benchmark]: TraceAbstraction took 1096.40 ms. Allocated memory is still 115.3 MB. Free memory was 74.2 MB in the beginning and 72.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:12:18,666 INFO L168 Benchmark]: Witness Printer took 3.19 ms. Allocated memory is still 115.3 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:12:18,670 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 86.0 MB. Free memory was 58.7 MB in the beginning and 58.7 MB in the end (delta: 26.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 277.25 ms. Allocated memory was 86.0 MB in the beginning and 115.3 MB in the end (delta: 29.4 MB). Free memory was 51.9 MB in the beginning and 90.4 MB in the end (delta: -38.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.17 ms. Allocated memory is still 115.3 MB. Free memory was 90.4 MB in the beginning and 88.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.78 ms. Allocated memory is still 115.3 MB. Free memory was 88.9 MB in the beginning and 87.3 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 429.28 ms. Allocated memory is still 115.3 MB. Free memory was 87.3 MB in the beginning and 74.2 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1096.40 ms. Allocated memory is still 115.3 MB. Free memory was 74.2 MB in the beginning and 72.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Witness Printer took 3.19 ms. Allocated memory is still 115.3 MB. Free memory is still 72.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 80]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 79, overapproximation of someBinaryArithmeticDOUBLEoperation at line 67. Possible FailurePath: [L66] double x = __VERIFIER_nondet_double(); [L67] double y = 0.0 / 0.0; [L18] return x != x; [L74] COND TRUE !isnan_double(x) [L29] __uint32_t msw, lsw; [L32] ieee_double_shape_type ew_u; [L33] ew_u.value = (x) [L34] EXPR ew_u.parts.msw [L34] (msw) = ew_u.parts.msw [L35] EXPR ew_u.parts.lsw [L35] (lsw) = ew_u.parts.lsw [L38-L39] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L41-L42] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L44-L45] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L48-L49] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L52] return 0; [L57] COND TRUE __fpclassify_double(x) == 0 [L58] return y; [L76] double res = fmax_double(x, y); [L79] COND TRUE res != x [L80] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 940.5ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 12.2ms, AutomataDifference: 253.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 209 SDtfs, 40 SDslu, 242 SDs, 0 SdLazy, 84 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 94.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 40.9ms AutomataMinimizationTime, 5 MinimizatonAttempts, 40 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.4ms SsaConstructionTime, 177.6ms SatisfiabilityAnalysisTime, 222.8ms InterpolantComputationTime, 80 NumberOfCodeBlocks, 80 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 76 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 00:12:18,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:12:21,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:12:21,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:12:21,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:12:21,048 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:12:21,049 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:12:21,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:12:21,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:12:21,055 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:12:21,056 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:12:21,057 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:12:21,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:12:21,059 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:12:21,060 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:12:21,062 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:12:21,063 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:12:21,064 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:12:21,065 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:12:21,067 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:12:21,070 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:12:21,078 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:12:21,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:12:21,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:12:21,083 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:12:21,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:12:21,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:12:21,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:12:21,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:12:21,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:12:21,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:12:21,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:12:21,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:12:21,108 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:12:21,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:12:21,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:12:21,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:12:21,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:12:21,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:12:21,112 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:12:21,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:12:21,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:12:21,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-13 00:12:21,163 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:12:21,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:12:21,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:12:21,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:12:21,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:12:21,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:12:21,166 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:12:21,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:12:21,167 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:12:21,167 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:12:21,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:12:21,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:12:21,168 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:12:21,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:12:21,169 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 00:12:21,169 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 00:12:21,169 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:12:21,169 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:12:21,169 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:12:21,170 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:12:21,170 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:12:21,170 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:12:21,170 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:12:21,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:12:21,171 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:12:21,171 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:12:21,171 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:12:21,171 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-13 00:12:21,171 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 00:12:21,172 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:12:21,172 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:12:21,172 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 00:12:21,172 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_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dca3295f12b1ef36cf31c463cf879069525072f [2021-10-13 00:12:21,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:12:21,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:12:21,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:12:21,568 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:12:21,568 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:12:21,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/float-newlib/double_req_bl_1251b.c [2021-10-13 00:12:21,634 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data/22bd19b34/8ff3f9dbf111463b954268217fc03419/FLAG9a0eff02c [2021-10-13 00:12:22,248 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:12:22,248 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/sv-benchmarks/c/float-newlib/double_req_bl_1251b.c [2021-10-13 00:12:22,256 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data/22bd19b34/8ff3f9dbf111463b954268217fc03419/FLAG9a0eff02c [2021-10-13 00:12:22,621 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/data/22bd19b34/8ff3f9dbf111463b954268217fc03419 [2021-10-13 00:12:22,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:12:22,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:12:22,631 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:12:22,631 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:12:22,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:12:22,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438fc35c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22, skipping insertion in model container [2021-10-13 00:12:22,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,645 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:12:22,663 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:12:22,806 WARN L228 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_a7f70869-9f67-42a5-8996-87d9ba827bdd/sv-benchmarks/c/float-newlib/double_req_bl_1251b.c[2080,2093] [2021-10-13 00:12:22,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:12:22,820 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:12:22,853 WARN L228 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_a7f70869-9f67-42a5-8996-87d9ba827bdd/sv-benchmarks/c/float-newlib/double_req_bl_1251b.c[2080,2093] [2021-10-13 00:12:22,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:12:22,871 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:12:22,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22 WrapperNode [2021-10-13 00:12:22,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:12:22,872 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:12:22,872 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:12:22,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:12:22,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,899 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:12:22,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:12:22,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:12:22,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:12:22,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,934 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,950 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:12:22,955 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:12:22,955 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:12:22,955 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:12:22,956 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (1/1) ... [2021-10-13 00:12:22,971 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:12:22,984 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:12:22,995 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:12:23,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:12:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-13 00:12:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 00:12:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:12:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 00:12:23,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:12:23,032 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:12:23,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:12:23,378 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:12:23,379 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-10-13 00:12:23,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:12:23 BoogieIcfgContainer [2021-10-13 00:12:23,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:12:23,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:12:23,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:12:23,385 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:12:23,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:12:22" (1/3) ... [2021-10-13 00:12:23,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299087f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:12:23, skipping insertion in model container [2021-10-13 00:12:23,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:12:22" (2/3) ... [2021-10-13 00:12:23,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299087f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:12:23, skipping insertion in model container [2021-10-13 00:12:23,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:12:23" (3/3) ... [2021-10-13 00:12:23,387 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1251b.c [2021-10-13 00:12:23,404 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:12:23,405 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:12:23,472 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:12:23,483 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, mConcurrency=FINITE_AUTOMATA, 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 [2021-10-13 00:12:23,483 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 00:12:23,499 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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) [2021-10-13 00:12:23,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 00:12:23,512 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:23,513 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:23,514 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:12:23,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:23,522 INFO L82 PathProgramCache]: Analyzing trace with hash -124750094, now seen corresponding path program 1 times [2021-10-13 00:12:23,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:12:23,534 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1868523904] [2021-10-13 00:12:23,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:23,535 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:12:23,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:12:23,542 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:12:23,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 00:12:23,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:23,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 00:12:23,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:12:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:23,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:12:23,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:23,839 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:12:23,839 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1868523904] [2021-10-13 00:12:23,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1868523904] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:12:23,840 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:12:23,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 00:12:23,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [299160513] [2021-10-13 00:12:23,846 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 00:12:23,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:12:23,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 00:12:23,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:12:23,872 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-13 00:12:23,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:23,893 INFO L93 Difference]: Finished difference Result 56 states and 87 transitions. [2021-10-13 00:12:23,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 00:12:23,895 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-10-13 00:12:23,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:23,905 INFO L225 Difference]: With dead ends: 56 [2021-10-13 00:12:23,905 INFO L226 Difference]: Without dead ends: 26 [2021-10-13 00:12:23,908 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 00:12:23,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2021-10-13 00:12:23,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2021-10-13 00:12:23,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.44) internal successors, (36), 25 states have internal predecessors, (36), 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) [2021-10-13 00:12:23,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 36 transitions. [2021-10-13 00:12:23,945 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 36 transitions. Word has length 11 [2021-10-13 00:12:23,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:23,946 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 36 transitions. [2021-10-13 00:12:23,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-10-13 00:12:23,947 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2021-10-13 00:12:23,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:12:23,948 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:23,948 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:23,965 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 00:12:24,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:12:24,161 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:12:24,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:24,168 INFO L82 PathProgramCache]: Analyzing trace with hash -1352831344, now seen corresponding path program 1 times [2021-10-13 00:12:24,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:12:24,171 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1375119566] [2021-10-13 00:12:24,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:24,172 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:12:24,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:12:24,173 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:12:24,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 00:12:24,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:24,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:12:24,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:12:24,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:24,408 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:12:24,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:24,465 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:12:24,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1375119566] [2021-10-13 00:12:24,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1375119566] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:12:24,466 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:12:24,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 00:12:24,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386473546] [2021-10-13 00:12:24,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:12:24,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:12:24,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:12:24,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:12:24,469 INFO L87 Difference]: Start difference. First operand 26 states and 36 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:24,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:12:24,615 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2021-10-13 00:12:24,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:12:24,618 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-13 00:12:24,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:12:24,619 INFO L225 Difference]: With dead ends: 50 [2021-10-13 00:12:24,619 INFO L226 Difference]: Without dead ends: 46 [2021-10-13 00:12:24,620 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 57.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:12:24,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2021-10-13 00:12:24,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 28. [2021-10-13 00:12:24,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.4074074074074074) internal successors, (38), 27 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) [2021-10-13 00:12:24,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 38 transitions. [2021-10-13 00:12:24,637 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 38 transitions. Word has length 12 [2021-10-13 00:12:24,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:12:24,640 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 38 transitions. [2021-10-13 00:12:24,640 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:12:24,640 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 38 transitions. [2021-10-13 00:12:24,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:12:24,641 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:12:24,642 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:12:24,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-13 00:12:24,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:12:24,854 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:12:24,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:12:24,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1102769416, now seen corresponding path program 1 times [2021-10-13 00:12:24,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:12:24,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1863995242] [2021-10-13 00:12:24,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:12:24,856 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:12:24,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:12:24,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:12:24,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 00:12:24,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:12:24,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-13 00:12:25,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:12:25,235 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 35 treesize of output 33 [2021-10-13 00:12:27,259 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 64))) (and (= c_ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_5|)) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_5|) c_ULTIMATE.start___fpclassify_double_~lsw~0) (let ((.cse0 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_5|)))) (fp.eq .cse0 .cse0)))) is different from true [2021-10-13 00:12:27,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:27,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:12:30,096 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 75 treesize of output 71 [2021-10-13 00:12:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:12:30,650 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:12:30,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1863995242] [2021-10-13 00:12:30,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1863995242] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:12:30,651 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:12:30,651 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 13 [2021-10-13 00:12:30,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893380156] [2021-10-13 00:12:30,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-10-13 00:12:30,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:12:30,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-10-13 00:12:30,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=98, Unknown=2, NotChecked=20, Total=156 [2021-10-13 00:12:30,654 INFO L87 Difference]: Start difference. First operand 28 states and 38 transitions. Second operand has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:05,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:05,787 INFO L93 Difference]: Finished difference Result 78 states and 97 transitions. [2021-10-13 00:13:05,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-13 00:13:05,788 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-13 00:13:05,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:13:05,790 INFO L225 Difference]: With dead ends: 78 [2021-10-13 00:13:05,790 INFO L226 Difference]: Without dead ends: 62 [2021-10-13 00:13:05,791 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 19216.4ms TimeCoverageRelationStatistics Valid=153, Invalid=352, Unknown=5, NotChecked=42, Total=552 [2021-10-13 00:13:05,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-10-13 00:13:05,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 26. [2021-10-13 00:13:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.36) internal successors, (34), 25 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) [2021-10-13 00:13:05,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 34 transitions. [2021-10-13 00:13:05,799 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 34 transitions. Word has length 15 [2021-10-13 00:13:05,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:13:05,800 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 34 transitions. [2021-10-13 00:13:05,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.8461538461538463) internal successors, (24), 13 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:05,800 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 34 transitions. [2021-10-13 00:13:05,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 00:13:05,801 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:13:05,801 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:05,830 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:06,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:13:06,019 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:13:06,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:06,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1042649172, now seen corresponding path program 1 times [2021-10-13 00:13:06,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:13:06,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103034994] [2021-10-13 00:13:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:06,024 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:13:06,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:13:06,026 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:13:06,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 00:13:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:06,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:13:06,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:06,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:06,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:13:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:06,346 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:13:06,346 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103034994] [2021-10-13 00:13:06,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103034994] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:06,347 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:06,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 00:13:06,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252239730] [2021-10-13 00:13:06,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:13:06,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:13:06,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:13:06,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:13:06,349 INFO L87 Difference]: Start difference. First operand 26 states and 34 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:06,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:06,502 INFO L93 Difference]: Finished difference Result 48 states and 57 transitions. [2021-10-13 00:13:06,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:13:06,503 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-10-13 00:13:06,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:13:06,504 INFO L225 Difference]: With dead ends: 48 [2021-10-13 00:13:06,504 INFO L226 Difference]: Without dead ends: 44 [2021-10-13 00:13:06,505 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 53.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-13 00:13:06,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-13 00:13:06,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 28. [2021-10-13 00:13:06,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.3333333333333333) internal successors, (36), 27 states have internal predecessors, (36), 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) [2021-10-13 00:13:06,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2021-10-13 00:13:06,512 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 17 [2021-10-13 00:13:06,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:13:06,513 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2021-10-13 00:13:06,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:06,513 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2021-10-13 00:13:06,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:13:06,514 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:13:06,517 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:06,538 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:06,730 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:13:06,731 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:13:06,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:06,731 INFO L82 PathProgramCache]: Analyzing trace with hash 1310041806, now seen corresponding path program 1 times [2021-10-13 00:13:06,731 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:13:06,732 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [720681175] [2021-10-13 00:13:06,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:06,732 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:13:06,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:13:06,733 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:13:06,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-13 00:13:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:06,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-13 00:13:06,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:07,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:07,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:13:08,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:08,043 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:13:08,044 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [720681175] [2021-10-13 00:13:08,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [720681175] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:08,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:08,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-10-13 00:13:08,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529262515] [2021-10-13 00:13:08,045 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:13:08,045 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:13:08,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:13:08,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:13:08,046 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2021-10-13 00:13:08,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:08,145 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2021-10-13 00:13:08,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:13:08,153 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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 19 [2021-10-13 00:13:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:13:08,154 INFO L225 Difference]: With dead ends: 33 [2021-10-13 00:13:08,155 INFO L226 Difference]: Without dead ends: 28 [2021-10-13 00:13:08,155 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 775.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:13:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-10-13 00:13:08,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2021-10-13 00:13:08,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 27 states have internal predecessors, (35), 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) [2021-10-13 00:13:08,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2021-10-13 00:13:08,163 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 19 [2021-10-13 00:13:08,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:13:08,163 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2021-10-13 00:13:08,164 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2021-10-13 00:13:08,164 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2021-10-13 00:13:08,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-13 00:13:08,165 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:13:08,165 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:08,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:08,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:13:08,378 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:13:08,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:08,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1311888848, now seen corresponding path program 1 times [2021-10-13 00:13:08,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:13:08,379 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019888909] [2021-10-13 00:13:08,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:08,380 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:13:08,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:13:08,381 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:13:08,384 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-10-13 00:13:08,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:08,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 00:13:08,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:08,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:08,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:13:09,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:09,533 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:13:09,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019888909] [2021-10-13 00:13:09,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019888909] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:09,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:09,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-13 00:13:09,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663511446] [2021-10-13 00:13:09,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:13:09,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:13:09,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:13:09,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:13:09,537 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) [2021-10-13 00:13:10,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:10,155 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2021-10-13 00:13:10,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:13:10,171 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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 19 [2021-10-13 00:13:10,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:13:10,172 INFO L225 Difference]: With dead ends: 40 [2021-10-13 00:13:10,172 INFO L226 Difference]: Without dead ends: 32 [2021-10-13 00:13:10,178 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 674.1ms TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-10-13 00:13:10,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-10-13 00:13:10,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 28. [2021-10-13 00:13:10,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1851851851851851) internal successors, (32), 27 states have internal predecessors, (32), 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) [2021-10-13 00:13:10,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2021-10-13 00:13:10,195 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 19 [2021-10-13 00:13:10,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:13:10,195 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2021-10-13 00:13:10,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.0) internal successors, (30), 10 states have internal predecessors, (30), 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) [2021-10-13 00:13:10,196 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2021-10-13 00:13:10,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-10-13 00:13:10,197 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:13:10,197 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:13:10,214 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:10,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:13:10,411 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:13:10,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:10,411 INFO L82 PathProgramCache]: Analyzing trace with hash 839947293, now seen corresponding path program 1 times [2021-10-13 00:13:10,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:13:10,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844914105] [2021-10-13 00:13:10,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:10,412 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:13:10,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:13:10,414 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:13:10,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-10-13 00:13:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:10,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-13 00:13:10,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:11,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:11,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:13:11,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:11,991 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:13:11,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844914105] [2021-10-13 00:13:11,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844914105] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:11,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:11,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-10-13 00:13:11,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068124797] [2021-10-13 00:13:11,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-13 00:13:11,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:13:11,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-13 00:13:11,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-10-13 00:13:11,994 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 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) [2021-10-13 00:13:12,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:12,796 INFO L93 Difference]: Finished difference Result 70 states and 75 transitions. [2021-10-13 00:13:12,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-13 00:13:12,797 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 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 20 [2021-10-13 00:13:12,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:13:12,798 INFO L225 Difference]: With dead ends: 70 [2021-10-13 00:13:12,798 INFO L226 Difference]: Without dead ends: 64 [2021-10-13 00:13:12,798 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 548.6ms TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2021-10-13 00:13:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-10-13 00:13:12,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 36. [2021-10-13 00:13:12,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1714285714285715) internal successors, (41), 35 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) [2021-10-13 00:13:12,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 41 transitions. [2021-10-13 00:13:12,806 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 41 transitions. Word has length 20 [2021-10-13 00:13:12,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:13:12,806 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 41 transitions. [2021-10-13 00:13:12,806 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 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) [2021-10-13 00:13:12,807 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 41 transitions. [2021-10-13 00:13:12,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:13:12,807 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:13:12,808 INFO L512 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] [2021-10-13 00:13:12,820 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:13,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:13:13,015 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:13:13,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:13,015 INFO L82 PathProgramCache]: Analyzing trace with hash 598258075, now seen corresponding path program 1 times [2021-10-13 00:13:13,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:13:13,015 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460477141] [2021-10-13 00:13:13,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:13,016 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:13:13,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:13:13,017 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:13:13,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-10-13 00:13:13,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:13,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-13 00:13:13,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:13,399 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 32 treesize of output 30 [2021-10-13 00:13:13,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:13,693 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:13:13,873 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 58 treesize of output 54 [2021-10-13 00:13:14,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:14,372 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:13:14,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460477141] [2021-10-13 00:13:14,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1460477141] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:14,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:14,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-13 00:13:14,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673452339] [2021-10-13 00:13:14,373 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 00:13:14,373 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:13:14,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 00:13:14,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-10-13 00:13:14,374 INFO L87 Difference]: Start difference. First operand 36 states and 41 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2021-10-13 00:13:14,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:14,892 INFO L93 Difference]: Finished difference Result 44 states and 48 transitions. [2021-10-13 00:13:14,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 00:13:14,902 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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 22 [2021-10-13 00:13:14,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:13:14,902 INFO L225 Difference]: With dead ends: 44 [2021-10-13 00:13:14,902 INFO L226 Difference]: Without dead ends: 36 [2021-10-13 00:13:14,903 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 601.1ms TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2021-10-13 00:13:14,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-10-13 00:13:14,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2021-10-13 00:13:14,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.1142857142857143) internal successors, (39), 35 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) [2021-10-13 00:13:14,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 39 transitions. [2021-10-13 00:13:14,911 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 39 transitions. Word has length 22 [2021-10-13 00:13:14,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:13:14,913 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 39 transitions. [2021-10-13 00:13:14,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 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) [2021-10-13 00:13:14,914 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 39 transitions. [2021-10-13 00:13:14,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-13 00:13:14,914 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:13:14,915 INFO L512 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] [2021-10-13 00:13:14,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:15,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:13:15,123 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:13:15,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:15,123 INFO L82 PathProgramCache]: Analyzing trace with hash -211088551, now seen corresponding path program 1 times [2021-10-13 00:13:15,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:13:15,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [752848376] [2021-10-13 00:13:15,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:15,124 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:13:15,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:13:15,125 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:13:15,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-10-13 00:13:15,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:15,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-13 00:13:15,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:15,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:15,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:13:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:15,440 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:13:15,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [752848376] [2021-10-13 00:13:15,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [752848376] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:15,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:15,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-10-13 00:13:15,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117091141] [2021-10-13 00:13:15,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:13:15,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:13:15,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:13:15,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:13:15,443 INFO L87 Difference]: Start difference. First operand 36 states and 39 transitions. Second operand has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:15,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:15,525 INFO L93 Difference]: Finished difference Result 40 states and 42 transitions. [2021-10-13 00:13:15,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:13:15,526 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-10-13 00:13:15,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:13:15,527 INFO L225 Difference]: With dead ends: 40 [2021-10-13 00:13:15,527 INFO L226 Difference]: Without dead ends: 24 [2021-10-13 00:13:15,527 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:13:15,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-10-13 00:13:15,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-10-13 00:13:15,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0) internal successors, (23), 23 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:15,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 23 transitions. [2021-10-13 00:13:15,533 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 23 transitions. Word has length 22 [2021-10-13 00:13:15,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:13:15,533 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 23 transitions. [2021-10-13 00:13:15,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.5) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:13:15,533 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 23 transitions. [2021-10-13 00:13:15,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-13 00:13:15,534 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:13:15,534 INFO L512 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] [2021-10-13 00:13:15,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:15,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:13:15,735 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 00:13:15,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:13:15,735 INFO L82 PathProgramCache]: Analyzing trace with hash -2107078825, now seen corresponding path program 1 times [2021-10-13 00:13:15,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-13 00:13:15,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [786346342] [2021-10-13 00:13:15,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:13:15,736 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 00:13:15,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat [2021-10-13 00:13:15,737 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 00:13:15,741 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-10-13 00:13:15,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:13:15,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 16 conjunts are in the unsatisfiable core [2021-10-13 00:13:15,942 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 00:13:17,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:17,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 00:13:18,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:13:18,224 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-13 00:13:18,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [786346342] [2021-10-13 00:13:18,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [786346342] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 00:13:18,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:13:18,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2021-10-13 00:13:18,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231976872] [2021-10-13 00:13:18,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-13 00:13:18,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-13 00:13:18,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-13 00:13:18,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2021-10-13 00:13:18,227 INFO L87 Difference]: Start difference. First operand 24 states and 23 transitions. Second operand has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2021-10-13 00:13:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:13:19,019 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2021-10-13 00:13:19,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-13 00:13:19,019 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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 23 [2021-10-13 00:13:19,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:13:19,020 INFO L225 Difference]: With dead ends: 24 [2021-10-13 00:13:19,020 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:13:19,021 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 1133.2ms TimeCoverageRelationStatistics Valid=136, Invalid=370, Unknown=0, NotChecked=0, Total=506 [2021-10-13 00:13:19,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:13:19,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:13:19,021 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) [2021-10-13 00:13:19,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:13:19,021 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-10-13 00:13:19,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:13:19,021 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:13:19,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.75) internal successors, (44), 16 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) [2021-10-13 00:13:19,022 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:13:19,022 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:13:19,024 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:13:19,039 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-10-13 00:13:19,238 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/mathsat -unsat_core_generation=3 [2021-10-13 00:13:19,240 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 00:13:19,243 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:13:19,316 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:13:19,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:13:19,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:13:19,427 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:13:19,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:13:19,490 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 00:14:24,837 WARN L207 SmtUtils]: Spent 1.08 m on a formula simplification. DAG size of input: 147 DAG size of output: 69 [2021-10-13 00:14:28,063 INFO L857 garLoopResultBuilder]: For program point L31-1(lines 31 36) no Hoare annotation was computed. [2021-10-13 00:14:28,063 INFO L853 garLoopResultBuilder]: At program point L31-2(lines 31 36) the Hoare annotation is: (and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmax_double_~x) (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start___fpclassify_double_~x ULTIMATE.start_fmax_double_~x) (= (_ bv0 32) |ULTIMATE.start_isnan_double_#res|) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~y~0 (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_fmax_double_~y))) [2021-10-13 00:14:28,063 INFO L857 garLoopResultBuilder]: For program point L31-3(lines 28 53) no Hoare annotation was computed. [2021-10-13 00:14:28,063 INFO L857 garLoopResultBuilder]: For program point L31-5(lines 31 36) no Hoare annotation was computed. [2021-10-13 00:14:28,063 INFO L853 garLoopResultBuilder]: At program point L31-6(lines 31 36) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___fpclassify_double_~x)) (fp.eq ULTIMATE.start_fmax_double_~x ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_double_#res|) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~y~0 (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_fmax_double_~y))) [2021-10-13 00:14:28,063 INFO L857 garLoopResultBuilder]: For program point L31-7(lines 28 53) no Hoare annotation was computed. [2021-10-13 00:14:28,063 INFO L860 garLoopResultBuilder]: At program point L85(lines 65 86) the Hoare annotation is: true [2021-10-13 00:14:28,064 INFO L853 garLoopResultBuilder]: At program point L52(lines 28 53) the Hoare annotation is: (and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|)) (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|)) ULTIMATE.start_fmax_double_~x))) (= ULTIMATE.start___fpclassify_double_~x ULTIMATE.start_fmax_double_~x) (let ((.cse0 (let ((.cse3 (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (or (and .cse3 (= (_ bv0 32) |ULTIMATE.start_isnan_double_#res|)) (and (not .cse3) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|))))) (.cse1 (not (= |ULTIMATE.start___fpclassify_double_#res| (_ bv0 32))))) (or (and .cse0 .cse1 (or (and (bvuge ULTIMATE.start___fpclassify_double_~msw~0 (_ bv2147483648 32)) (bvule ULTIMATE.start___fpclassify_double_~msw~0 (_ bv2148532223 32))) (and (bvuge ULTIMATE.start___fpclassify_double_~msw~0 (_ bv2148532224 32)) (bvule ULTIMATE.start___fpclassify_double_~msw~0 (_ bv4293918719 32))) (bvule ULTIMATE.start___fpclassify_double_~msw~0 (_ bv2146435071 32)))) (and (fp.eq ULTIMATE.start___fpclassify_double_~x ULTIMATE.start___fpclassify_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_5| (_ BitVec 64))) (and (= ULTIMATE.start___fpclassify_double_~msw~0 ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_5|)) (= ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_5|) ULTIMATE.start___fpclassify_double_~lsw~0) (let ((.cse2 (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_5|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_5|)))) (fp.eq .cse2 .cse2)))) .cse0 .cse1))) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~y~0 (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_fmax_double_~y))) [2021-10-13 00:14:28,064 INFO L853 garLoopResultBuilder]: At program point L52-1(lines 28 53) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___fpclassify_double_~x)) (= |ULTIMATE.start___fpclassify_double_#res| (_ bv0 32)) (exists ((|v_skolemized_q#valueAsBitvector_8| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_8|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_8|)) (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_8|) ULTIMATE.start___fpclassify_double_~msw~0) (= ULTIMATE.start___fpclassify_double_~lsw~0 ((_ extract 31 0) |v_skolemized_q#valueAsBitvector_8|)))) (fp.eq ULTIMATE.start_fmax_double_~x ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_double_#res|) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~y~0 (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_fmax_double_~y))) [2021-10-13 00:14:28,064 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 52) no Hoare annotation was computed. [2021-10-13 00:14:28,064 INFO L857 garLoopResultBuilder]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2021-10-13 00:14:28,064 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 52) no Hoare annotation was computed. [2021-10-13 00:14:28,064 INFO L857 garLoopResultBuilder]: For program point L44-1(lines 44 52) no Hoare annotation was computed. [2021-10-13 00:14:28,064 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 00:14:28,064 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 00:14:28,065 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 00:14:28,065 INFO L857 garLoopResultBuilder]: For program point L57(lines 57 58) no Hoare annotation was computed. [2021-10-13 00:14:28,065 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 80) no Hoare annotation was computed. [2021-10-13 00:14:28,065 INFO L857 garLoopResultBuilder]: For program point L74(lines 74 83) no Hoare annotation was computed. [2021-10-13 00:14:28,065 INFO L857 garLoopResultBuilder]: For program point L41(lines 41 52) no Hoare annotation was computed. [2021-10-13 00:14:28,065 INFO L857 garLoopResultBuilder]: For program point L41-1(lines 41 52) no Hoare annotation was computed. [2021-10-13 00:14:28,066 INFO L857 garLoopResultBuilder]: For program point L74-2(lines 74 83) no Hoare annotation was computed. [2021-10-13 00:14:28,066 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 00:14:28,066 INFO L857 garLoopResultBuilder]: For program point L62(line 62) no Hoare annotation was computed. [2021-10-13 00:14:28,066 INFO L857 garLoopResultBuilder]: For program point L62-2(line 62) no Hoare annotation was computed. [2021-10-13 00:14:28,066 INFO L853 garLoopResultBuilder]: At program point L62-3(lines 55 63) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start___fpclassify_double_~x)) (exists ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 64)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_6|)) (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))) (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_6|) ULTIMATE.start___fpclassify_double_~msw~0))) (fp.eq ULTIMATE.start_fmax_double_~x ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_double_#res|) (fp.eq |ULTIMATE.start_fmax_double_#res| ULTIMATE.start_main_~x~0) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~y~0 (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)))) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_fmax_double_~y))) [2021-10-13 00:14:28,066 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2021-10-13 00:14:28,067 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 60) no Hoare annotation was computed. [2021-10-13 00:14:28,067 INFO L853 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (and (let ((.cse0 (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (or (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isnan_double_#res|)) (and (not .cse0) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)))) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_main_~y~0 (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53))))) [2021-10-13 00:14:28,067 INFO L857 garLoopResultBuilder]: For program point L80(line 80) no Hoare annotation was computed. [2021-10-13 00:14:28,071 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:14:28,076 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,077 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,077 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,083 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,083 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,083 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,085 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,085 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,087 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,088 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,089 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,089 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,089 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,089 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,090 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,091 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,092 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,093 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,093 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,093 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,093 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,093 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,095 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,095 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,095 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,096 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,096 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,097 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,098 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,098 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,098 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,099 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,099 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,099 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,099 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,100 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,102 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,103 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,104 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,104 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,104 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,104 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,104 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,105 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,105 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,105 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:14:28 BoogieIcfgContainer [2021-10-13 00:14:28,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:14:28,107 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:14:28,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:14:28,107 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:14:28,107 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:12:23" (3/4) ... [2021-10-13 00:14:28,110 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:14:28,120 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-13 00:14:28,121 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-10-13 00:14:28,121 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-13 00:14:28,121 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:14:28,143 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.eq~DOUBLE(x, x) && 0bv32 == \result) || (!~fp.eq~DOUBLE(x, x) && 1bv32 == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2021-10-13 00:14:28,144 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((x == x && ~fp.eq~DOUBLE(x, x)) && x == x) && 0bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) [2021-10-13 00:14:28,144 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((x == x && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: msw == v_skolemized_q#valueAsBitvector_7[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == x)) && x == x) && (((((~fp.eq~DOUBLE(x, x) && 0bv32 == \result) || (!~fp.eq~DOUBLE(x, x) && 1bv32 == \result)) && !(\result == 0bv32)) && (((~bvuge32(msw, 2147483648bv32) && ~bvule32(msw, 2148532223bv32)) || (~bvuge32(msw, 2148532224bv32) && ~bvule32(msw, 4293918719bv32))) || ~bvule32(msw, 2146435071bv32))) || (((~fp.eq~DOUBLE(x, x) && (\exists v_skolemized_q#valueAsBitvector_5 : bv64 :: (msw == v_skolemized_q#valueAsBitvector_5[63:32] && v_skolemized_q#valueAsBitvector_5[31:0] == lsw) && ~fp.eq~DOUBLE(~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_5[63:63], v_skolemized_q#valueAsBitvector_5[62:52], v_skolemized_q#valueAsBitvector_5[51:0]), ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_5[63:63], v_skolemized_q#valueAsBitvector_5[62:52], v_skolemized_q#valueAsBitvector_5[51:0])))) && ((~fp.eq~DOUBLE(x, x) && 0bv32 == \result) || (!~fp.eq~DOUBLE(x, x) && 1bv32 == \result))) && !(\result == 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) [2021-10-13 00:14:28,145 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_6 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_6[63:63], v_skolemized_q#valueAsBitvector_6[62:52], v_skolemized_q#valueAsBitvector_6[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_6[63:32] == msw)) && ~fp.eq~DOUBLE(x, x)) && 0bv32 == \result) && ~fp.eq~DOUBLE(\result, x)) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) [2021-10-13 00:14:28,153 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~fp.eq~DOUBLE(x, x)) && 0bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) [2021-10-13 00:14:28,154 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64, currentRoundingMode : FloatRoundingMode :: (~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_8[63:32] == msw) && lsw == v_skolemized_q#valueAsBitvector_8[31:0])) && ~fp.eq~DOUBLE(x, x)) && 0bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) [2021-10-13 00:14:28,170 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:14:28,171 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:14:28,172 INFO L168 Benchmark]: Toolchain (without parser) took 125543.33 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.3 MB in the beginning and 49.7 MB in the end (delta: -15.5 MB). Peak memory consumption was 32.3 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:28,172 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 36.6 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:14:28,173 INFO L168 Benchmark]: CACSL2BoogieTranslator took 240.76 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 38.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:28,173 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 36.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:28,174 INFO L168 Benchmark]: Boogie Preprocessor took 33.08 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 35.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:28,174 INFO L168 Benchmark]: RCFGBuilder took 425.53 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 35.3 MB in the end (delta: -87.7 kB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:28,174 INFO L168 Benchmark]: TraceAbstraction took 124724.24 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.8 MB in the beginning and 22.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:28,175 INFO L168 Benchmark]: Witness Printer took 64.26 ms. Allocated memory is still 71.3 MB. Free memory was 22.6 MB in the beginning and 49.7 MB in the end (delta: -27.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:14:28,177 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 56.6 MB. Free memory was 36.6 MB in the beginning and 36.6 MB in the end (delta: 42.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 240.76 ms. Allocated memory is still 56.6 MB. Free memory was 34.1 MB in the beginning and 38.6 MB in the end (delta: -4.5 MB). Peak memory consumption was 13.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.6 MB in the beginning and 36.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.08 ms. Allocated memory is still 56.6 MB. Free memory was 36.8 MB in the beginning and 35.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 425.53 ms. Allocated memory is still 56.6 MB. Free memory was 35.2 MB in the beginning and 35.3 MB in the end (delta: -87.7 kB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 124724.24 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 34.8 MB in the beginning and 22.6 MB in the end (delta: 12.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 16.1 GB. * Witness Printer took 64.26 ms. Allocated memory is still 71.3 MB. Free memory was 22.6 MB in the beginning and 49.7 MB in the end (delta: -27.2 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 80]: 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, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 124600.8ms, OverallIterations: 10, TraceHistogramMax: 1, EmptinessCheckTime: 25.0ms, AutomataDifference: 38462.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 68823.9ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 268 SDtfs, 626 SDslu, 543 SDs, 0 SdLazy, 371 SolverSat, 52 SolverUnsat, 10 SolverUnknown, 0 SolverNotchecked, 21580.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 380 GetRequests, 274 SyntacticMatches, 1 SemanticMatches, 105 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 23073.3ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=7, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 99.6ms AutomataMinimizationTime, 10 MinimizatonAttempts, 102 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 18 NumberOfFragments, 307 HoareAnnotationTreeSize, 7 FomulaSimplifications, 3182 FormulaSimplificationTreeSizeReduction, 304.4ms HoareSimplificationTime, 7 FomulaSimplificationsInter, 8992 FormulaSimplificationTreeSizeReductionInter, 68511.9ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 118.3ms SsaConstructionTime, 682.1ms SatisfiabilityAnalysisTime, 13206.6ms InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 340 ConstructedInterpolants, 103 QuantifiedInterpolants, 2672 SizeOfPredicates, 70 NumberOfNonLiveVariables, 681 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 31]: Loop Invariant [2021-10-13 00:14:28,192 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,192 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,192 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,193 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,193 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,193 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && ~fp.eq~DOUBLE(x, x)) && 0bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) - InvariantResult [Line: 18]: Loop Invariant [2021-10-13 00:14:28,194 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,194 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((~fp.eq~DOUBLE(x, x) && 0bv32 == \result) || (!~fp.eq~DOUBLE(x, x) && 1bv32 == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant [2021-10-13 00:14:28,195 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,195 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,195 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,196 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,196 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,196 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,196 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,196 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,197 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,197 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,197 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,197 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,197 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,197 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,198 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,198 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2021-10-13 00:14:28,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,199 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,200 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,200 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,200 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,200 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,200 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_5,QUANTIFIED] [2021-10-13 00:14:28,201 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,201 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((x == x && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: msw == v_skolemized_q#valueAsBitvector_7[63:32] && ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]) == x)) && x == x) && (((((~fp.eq~DOUBLE(x, x) && 0bv32 == \result) || (!~fp.eq~DOUBLE(x, x) && 1bv32 == \result)) && !(\result == 0bv32)) && (((~bvuge32(msw, 2147483648bv32) && ~bvule32(msw, 2148532223bv32)) || (~bvuge32(msw, 2148532224bv32) && ~bvule32(msw, 4293918719bv32))) || ~bvule32(msw, 2146435071bv32))) || (((~fp.eq~DOUBLE(x, x) && (\exists v_skolemized_q#valueAsBitvector_5 : bv64 :: (msw == v_skolemized_q#valueAsBitvector_5[63:32] && v_skolemized_q#valueAsBitvector_5[31:0] == lsw) && ~fp.eq~DOUBLE(~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_5[63:63], v_skolemized_q#valueAsBitvector_5[62:52], v_skolemized_q#valueAsBitvector_5[51:0]), ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_5[63:63], v_skolemized_q#valueAsBitvector_5[62:52], v_skolemized_q#valueAsBitvector_5[51:0])))) && ((~fp.eq~DOUBLE(x, x) && 0bv32 == \result) || (!~fp.eq~DOUBLE(x, x) && 1bv32 == \result))) && !(\result == 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) - InvariantResult [Line: 31]: Loop Invariant [2021-10-13 00:14:28,202 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,202 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,203 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,203 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((x == x && ~fp.eq~DOUBLE(x, x)) && x == x) && 0bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) - InvariantResult [Line: 28]: Loop Invariant [2021-10-13 00:14:28,203 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,203 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,204 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,205 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_8,QUANTIFIED] [2021-10-13 00:14:28,206 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,207 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_8 : bv64, currentRoundingMode : FloatRoundingMode :: (~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_8[63:63], v_skolemized_q#valueAsBitvector_8[62:52], v_skolemized_q#valueAsBitvector_8[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_8[63:32] == msw) && lsw == v_skolemized_q#valueAsBitvector_8[31:0])) && ~fp.eq~DOUBLE(x, x)) && 0bv32 == \result) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) - InvariantResult [Line: 55]: Loop Invariant [2021-10-13 00:14:28,207 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,208 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,209 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_6,QUANTIFIED] [2021-10-13 00:14:28,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 00:14:28,210 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_6 : bv64, currentRoundingMode : FloatRoundingMode :: ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_6[63:63], v_skolemized_q#valueAsBitvector_6[62:52], v_skolemized_q#valueAsBitvector_6[51:0]) == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && v_skolemized_q#valueAsBitvector_6[63:32] == msw)) && ~fp.eq~DOUBLE(x, x)) && 0bv32 == \result) && ~fp.eq~DOUBLE(\result, x)) && (\exists currentRoundingMode : FloatRoundingMode :: y == ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == y) RESULT: Ultimate proved your program to be correct! [2021-10-13 00:14:28,438 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-13 00:14:28,451 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a7f70869-9f67-42a5-8996-87d9ba827bdd/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...