./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC --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 2c4d19baf0429684b688f90d909ef640d9fb6537 ............................................................................................................................................................................................................................................................................................. 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_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC --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 2c4d19baf0429684b688f90d909ef640d9fb6537 .............................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:28:47,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:28:47,602 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:28:47,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:28:47,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:28:47,633 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:28:47,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:28:47,637 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:28:47,639 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:28:47,641 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:28:47,642 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:28:47,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:28:47,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:28:47,645 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:28:47,647 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:28:47,650 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:28:47,654 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:28:47,655 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:28:47,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:28:47,663 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:28:47,668 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:28:47,670 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:28:47,674 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:28:47,675 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:28:47,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:28:47,687 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:28:47,688 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:28:47,689 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:28:47,690 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:28:47,692 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:28:47,693 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:28:47,694 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:28:47,696 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:28:47,697 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:28:47,699 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:28:47,699 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:28:47,700 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:28:47,700 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:28:47,700 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:28:47,701 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:28:47,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:28:47,705 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:28:47,744 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:28:47,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:28:47,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:28:47,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:28:47,747 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:28:47,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:28:47,748 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:28:47,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:28:47,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:28:47,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:28:47,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:28:47,750 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:28:47,750 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:28:47,750 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:28:47,750 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:28:47,751 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:28:47,751 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:28:47,751 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:28:47,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:28:47,752 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:28:47,752 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:47,752 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:28:47,752 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:28:47,753 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:28:47,753 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:28:47,753 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:28:47,753 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:28:47,753 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:28:47,754 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_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4d19baf0429684b688f90d909ef640d9fb6537 [2021-10-11 00:28:48,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:28:48,064 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:28:48,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:28:48,067 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:28:48,068 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:28:48,069 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2021-10-11 00:28:48,165 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data/ac15cdfdc/2c457f71e83942e89ca028d860f5157a/FLAGe8f20e186 [2021-10-11 00:28:48,725 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:28:48,726 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2021-10-11 00:28:48,744 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data/ac15cdfdc/2c457f71e83942e89ca028d860f5157a/FLAGe8f20e186 [2021-10-11 00:28:49,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data/ac15cdfdc/2c457f71e83942e89ca028d860f5157a [2021-10-11 00:28:49,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:28:49,084 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:28:49,086 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:49,086 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:28:49,089 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:28:49,090 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61a20462 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49, skipping insertion in model container [2021-10-11 00:28:49,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,101 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:28:49,117 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:28:49,338 WARN L226 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_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/sv-benchmarks/c/float-newlib/double_req_bl_1031.c[2057,2070] [2021-10-11 00:28:49,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:49,365 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:28:49,412 WARN L226 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_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/sv-benchmarks/c/float-newlib/double_req_bl_1031.c[2057,2070] [2021-10-11 00:28:49,413 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:49,431 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:28:49,432 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49 WrapperNode [2021-10-11 00:28:49,432 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:49,433 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:49,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:28:49,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:28:49,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:49,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:28:49,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:28:49,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:28:49,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,496 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... [2021-10-11 00:28:49,532 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:28:49,533 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:28:49,533 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:28:49,534 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:28:49,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:49,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:28:49,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:28:49,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-11 00:28:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 00:28:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-11 00:28:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:28:49,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:49,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 00:28:49,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:28:49,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:49,915 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-11 00:28:49,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:49 BoogieIcfgContainer [2021-10-11 00:28:49,917 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:49,918 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:28:49,918 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:28:49,922 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:28:49,923 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:28:49" (1/3) ... [2021-10-11 00:28:49,923 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b6421a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:49, skipping insertion in model container [2021-10-11 00:28:49,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:49" (2/3) ... [2021-10-11 00:28:49,924 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60b6421a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:49, skipping insertion in model container [2021-10-11 00:28:49,924 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:49" (3/3) ... [2021-10-11 00:28:49,925 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2021-10-11 00:28:49,940 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:28:49,943 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:28:49,954 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:28:49,978 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:28:49,979 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:28:49,979 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:28:49,979 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:49,979 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:49,979 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:28:49,979 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:49,979 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:28:49,992 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2021-10-11 00:28:49,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:28:49,997 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:49,998 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:49,998 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:50,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:50,004 INFO L82 PathProgramCache]: Analyzing trace with hash 2068161395, now seen corresponding path program 1 times [2021-10-11 00:28:50,026 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:50,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184819859] [2021-10-11 00:28:50,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:50,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:50,249 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:50,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184819859] [2021-10-11 00:28:50,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:50,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:50,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536765091] [2021-10-11 00:28:50,256 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:28:50,256 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:50,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:28:50,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:50,288 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2021-10-11 00:28:50,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:50,306 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2021-10-11 00:28:50,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:28:50,307 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-10-11 00:28:50,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:50,317 INFO L225 Difference]: With dead ends: 50 [2021-10-11 00:28:50,317 INFO L226 Difference]: Without dead ends: 23 [2021-10-11 00:28:50,320 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:50,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-11 00:28:50,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-11 00:28:50,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 00:28:50,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2021-10-11 00:28:50,354 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2021-10-11 00:28:50,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:50,354 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-10-11 00:28:50,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:28:50,354 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2021-10-11 00:28:50,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:28:50,355 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:50,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:50,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:28:50,356 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:50,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:50,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1606884976, now seen corresponding path program 1 times [2021-10-11 00:28:50,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:50,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763180340] [2021-10-11 00:28:50,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:50,409 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:50,451 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:50,499 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:50,499 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:28:50,501 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:28:50,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:28:50 BoogieIcfgContainer [2021-10-11 00:28:50,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:28:50,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:28:50,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:28:50,541 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:28:50,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:49" (3/4) ... [2021-10-11 00:28:50,544 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-11 00:28:50,545 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:28:50,549 INFO L168 Benchmark]: Toolchain (without parser) took 1462.18 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 78.4 MB in the beginning and 106.9 MB in the end (delta: -28.5 MB). Peak memory consumption was 337.0 kB. Max. memory is 16.1 GB. [2021-10-11 00:28:50,550 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 79.7 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:50,551 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.35 ms. Allocated memory is still 111.1 MB. Free memory was 78.1 MB in the beginning and 85.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:50,552 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.76 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 83.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:50,553 INFO L168 Benchmark]: Boogie Preprocessor took 47.28 ms. Allocated memory is still 111.1 MB. Free memory was 82.9 MB in the beginning and 81.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:50,554 INFO L168 Benchmark]: RCFGBuilder took 383.50 ms. Allocated memory is still 111.1 MB. Free memory was 81.7 MB in the beginning and 64.0 MB in the end (delta: 17.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:50,555 INFO L168 Benchmark]: TraceAbstraction took 620.90 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 63.7 MB in the beginning and 106.9 MB in the end (delta: -43.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:50,557 INFO L168 Benchmark]: Witness Printer took 4.69 ms. Allocated memory is still 140.5 MB. Free memory is still 106.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:50,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 79.7 MB. Free memory was 34.7 MB in the beginning and 34.6 MB in the end (delta: 77.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 346.35 ms. Allocated memory is still 111.1 MB. Free memory was 78.1 MB in the beginning and 85.0 MB in the end (delta: -6.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.76 ms. Allocated memory is still 111.1 MB. Free memory was 84.6 MB in the beginning and 83.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.28 ms. Allocated memory is still 111.1 MB. Free memory was 82.9 MB in the beginning and 81.7 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 383.50 ms. Allocated memory is still 111.1 MB. Free memory was 81.7 MB in the beginning and 64.0 MB in the end (delta: 17.7 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 620.90 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 63.7 MB in the beginning and 106.9 MB in the end (delta: -43.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.69 ms. Allocated memory is still 140.5 MB. Free memory is still 106.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 81]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of shiftRight at line 36, overapproximation of someBinaryArithmeticDOUBLEoperation at line 76, overapproximation of bitwiseAnd at line 37, overapproximation of someBinaryDOUBLEComparisonOperation at line 17. Possible FailurePath: [L76] double x = 0.0 / 0.0; [L20] __int32_t msw, exponent_less_1023; [L21] __uint32_t lsw; [L23] ieee_double_shape_type ew_u; [L24] ew_u.value = (x) [L25] EXPR ew_u.parts.msw [L25] (msw) = ew_u.parts.msw [L26] EXPR ew_u.parts.lsw [L26] (lsw) = ew_u.parts.lsw [L28] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L29] COND TRUE exponent_less_1023 < 20 [L30] COND FALSE !(exponent_less_1023 < 0) [L36] __uint32_t exponent_mask = 0x000fffff >> exponent_less_1023; [L37] COND TRUE (msw & exponent_mask) == 0 && lsw == 0 [L38] return x; [L77] double res = round_double(x); [L17] return x != x; [L80] COND TRUE !isnan_double(res) [L81] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 33 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:28:53,140 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:28:53,144 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:28:53,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-11 00:28:53,215 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:28:53,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:28:53,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:28:53,219 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:28:53,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:28:53,228 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:28:53,232 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:28:53,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:28:53,246 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:28:53,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:28:53,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:28:53,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:28:53,260 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-11 00:28:53,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:28:53,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:28:53,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:28:53,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:28:53,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:28:53,269 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:28:53,270 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:28:53,270 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:28:53,270 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:28:53,275 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:28:53,277 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:28:53,278 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-11 00:28:53,320 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:28:53,320 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:28:53,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:28:53,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:28:53,323 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:28:53,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:28:53,324 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:28:53,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:28:53,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:28:53,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:28:53,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:28:53,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:28:53,326 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-11 00:28:53,326 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-11 00:28:53,326 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:28:53,326 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:28:53,326 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:28:53,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:28:53,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:28:53,327 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:28:53,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:28:53,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:53,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:28:53,328 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:28:53,328 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:28:53,329 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-11 00:28:53,329 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-11 00:28:53,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:28:53,329 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:28:53,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 00:28:53,330 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_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2c4d19baf0429684b688f90d909ef640d9fb6537 [2021-10-11 00:28:53,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:28:53,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:28:53,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:28:53,777 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:28:53,778 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:28:53,779 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2021-10-11 00:28:53,858 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data/3efa5c28d/ab5f02be8eab441d97197bb9ce873e56/FLAGf25e72820 [2021-10-11 00:28:54,351 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:28:54,352 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/sv-benchmarks/c/float-newlib/double_req_bl_1031.c [2021-10-11 00:28:54,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data/3efa5c28d/ab5f02be8eab441d97197bb9ce873e56/FLAGf25e72820 [2021-10-11 00:28:54,698 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/data/3efa5c28d/ab5f02be8eab441d97197bb9ce873e56 [2021-10-11 00:28:54,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:28:54,702 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:28:54,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:54,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:28:54,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:28:54,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:54" (1/1) ... [2021-10-11 00:28:54,711 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67a9d493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:54, skipping insertion in model container [2021-10-11 00:28:54,711 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:54" (1/1) ... [2021-10-11 00:28:54,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:28:54,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:28:54,919 WARN L226 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_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/sv-benchmarks/c/float-newlib/double_req_bl_1031.c[2057,2070] [2021-10-11 00:28:54,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:54,943 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:28:55,001 WARN L226 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_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/sv-benchmarks/c/float-newlib/double_req_bl_1031.c[2057,2070] [2021-10-11 00:28:55,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:55,026 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:28:55,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55 WrapperNode [2021-10-11 00:28:55,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:55,031 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:55,031 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:28:55,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:28:55,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:55,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:28:55,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:28:55,110 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:28:55,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... [2021-10-11 00:28:55,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:28:55,179 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:28:55,179 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:28:55,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:28:55,181 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:55,271 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-11 00:28:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-11 00:28:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-11 00:28:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:28:55,272 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-11 00:28:55,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:28:55,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-11 00:28:55,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:28:55,972 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:55,974 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-11 00:28:55,976 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:55 BoogieIcfgContainer [2021-10-11 00:28:55,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:55,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:28:55,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:28:55,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:28:55,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:28:54" (1/3) ... [2021-10-11 00:28:55,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1047ca1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:55, skipping insertion in model container [2021-10-11 00:28:55,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:55" (2/3) ... [2021-10-11 00:28:55,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1047ca1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:55, skipping insertion in model container [2021-10-11 00:28:55,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:55" (3/3) ... [2021-10-11 00:28:55,987 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1031.c [2021-10-11 00:28:56,002 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:28:56,005 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 00:28:56,018 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-11 00:28:56,041 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:28:56,041 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:28:56,041 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:28:56,041 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:56,041 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:56,041 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:28:56,042 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:56,042 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:28:56,060 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2021-10-11 00:28:56,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 00:28:56,067 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:56,068 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:56,068 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:56,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:56,075 INFO L82 PathProgramCache]: Analyzing trace with hash 2068161395, now seen corresponding path program 1 times [2021-10-11 00:28:56,088 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:28:56,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [471142764] [2021-10-11 00:28:56,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2021-10-11 00:28:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:56,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-11 00:28:56,237 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:28:56,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:56,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:28:56,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [471142764] [2021-10-11 00:28:56,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:56,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:56,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039410505] [2021-10-11 00:28:56,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:28:56,285 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:28:56,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:28:56,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:56,300 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2021-10-11 00:28:56,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:56,317 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2021-10-11 00:28:56,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:28:56,318 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2021-10-11 00:28:56,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:56,328 INFO L225 Difference]: With dead ends: 50 [2021-10-11 00:28:56,328 INFO L226 Difference]: Without dead ends: 23 [2021-10-11 00:28:56,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:56,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-11 00:28:56,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-11 00:28:56,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2021-10-11 00:28:56,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2021-10-11 00:28:56,364 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 11 [2021-10-11 00:28:56,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:56,364 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2021-10-11 00:28:56,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:28:56,365 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2021-10-11 00:28:56,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 00:28:56,365 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:56,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:56,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2021-10-11 00:28:56,582 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:56,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:56,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1606884976, now seen corresponding path program 1 times [2021-10-11 00:28:56,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:28:56,584 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [863516793] [2021-10-11 00:28:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2021-10-11 00:28:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:56,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-11 00:28:56,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:28:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:56,865 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:28:56,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [863516793] [2021-10-11 00:28:56,866 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:56,866 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-11 00:28:56,866 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566094484] [2021-10-11 00:28:56,867 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-10-11 00:28:56,868 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:28:56,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-11 00:28:56,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-11 00:28:56,870 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand 6 states. [2021-10-11 00:28:57,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:57,470 INFO L93 Difference]: Finished difference Result 28 states and 34 transitions. [2021-10-11 00:28:57,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-11 00:28:57,471 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2021-10-11 00:28:57,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:57,472 INFO L225 Difference]: With dead ends: 28 [2021-10-11 00:28:57,472 INFO L226 Difference]: Without dead ends: 22 [2021-10-11 00:28:57,473 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-11 00:28:57,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-10-11 00:28:57,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2021-10-11 00:28:57,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-10-11 00:28:57,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2021-10-11 00:28:57,478 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 12 [2021-10-11 00:28:57,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:57,478 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2021-10-11 00:28:57,478 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2021-10-11 00:28:57,479 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2021-10-11 00:28:57,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 00:28:57,479 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:57,479 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:57,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2021-10-11 00:28:57,694 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:57,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:57,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1251020519, now seen corresponding path program 1 times [2021-10-11 00:28:57,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-11 00:28:57,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92116137] [2021-10-11 00:28:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2021-10-11 00:28:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:57,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-11 00:28:57,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 00:28:57,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:57,973 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-10-11 00:28:57,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92116137] [2021-10-11 00:28:57,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:57,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-11 00:28:57,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287773179] [2021-10-11 00:28:57,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 00:28:57,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-11 00:28:57,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 00:28:57,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:57,976 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 5 states. [2021-10-11 00:28:58,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:58,205 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2021-10-11 00:28:58,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:28:58,208 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2021-10-11 00:28:58,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:58,208 INFO L225 Difference]: With dead ends: 22 [2021-10-11 00:28:58,208 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 00:28:58,209 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-11 00:28:58,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 00:28:58,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 00:28:58,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 00:28:58,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 00:28:58,210 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-11 00:28:58,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:58,210 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 00:28:58,210 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 00:28:58,210 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 00:28:58,210 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 00:28:58,411 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2021-10-11 00:28:58,412 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 00:28:58,539 INFO L265 CegarLoopResult]: At program point L85(lines 68 86) the Hoare annotation is: true [2021-10-11 00:28:58,539 INFO L262 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2021-10-11 00:28:58,540 INFO L262 CegarLoopResult]: For program point L44(lines 44 47) no Hoare annotation was computed. [2021-10-11 00:28:58,540 INFO L258 CegarLoopResult]: At program point L65(lines 19 66) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_round_double_#res|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_round_double_~x))) [2021-10-11 00:28:58,540 INFO L262 CegarLoopResult]: For program point L32(lines 32 33) no Hoare annotation was computed. [2021-10-11 00:28:58,540 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-11 00:28:58,540 INFO L262 CegarLoopResult]: For program point L32-2(lines 32 33) no Hoare annotation was computed. [2021-10-11 00:28:58,540 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 00:28:58,540 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-11 00:28:58,540 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2021-10-11 00:28:58,541 INFO L262 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-10-11 00:28:58,541 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 00:28:58,541 INFO L262 CegarLoopResult]: For program point L29(lines 29 58) no Hoare annotation was computed. [2021-10-11 00:28:58,541 INFO L262 CegarLoopResult]: For program point L54(lines 54 55) no Hoare annotation was computed. [2021-10-11 00:28:58,541 INFO L262 CegarLoopResult]: For program point L54-2(lines 54 55) no Hoare annotation was computed. [2021-10-11 00:28:58,541 INFO L258 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) |ULTIMATE.start_round_double_#res|)) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_round_double_~x)) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2021-10-11 00:28:58,541 INFO L262 CegarLoopResult]: For program point L30(lines 30 42) no Hoare annotation was computed. [2021-10-11 00:28:58,541 INFO L262 CegarLoopResult]: For program point L59(lines 59 64) no Hoare annotation was computed. [2021-10-11 00:28:58,542 INFO L262 CegarLoopResult]: For program point L59-1(lines 19 66) no Hoare annotation was computed. [2021-10-11 00:28:58,542 INFO L262 CegarLoopResult]: For program point L59-2(lines 59 64) no Hoare annotation was computed. [2021-10-11 00:28:58,542 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 27) no Hoare annotation was computed. [2021-10-11 00:28:58,542 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 27) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_round_double_~x)) [2021-10-11 00:28:58,542 INFO L262 CegarLoopResult]: For program point L22-3(lines 22 27) no Hoare annotation was computed. [2021-10-11 00:28:58,542 INFO L262 CegarLoopResult]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-10-11 00:28:58,542 INFO L262 CegarLoopResult]: For program point L80(lines 80 83) no Hoare annotation was computed. [2021-10-11 00:28:58,542 INFO L262 CegarLoopResult]: For program point L43(lines 43 58) no Hoare annotation was computed. [2021-10-11 00:28:58,560 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,570 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,572 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,573 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,575 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,576 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:28:58 BoogieIcfgContainer [2021-10-11 00:28:58,578 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:28:58,579 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:28:58,579 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:28:58,579 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:28:58,580 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:55" (3/4) ... [2021-10-11 00:28:58,583 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 00:28:58,596 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 00:28:58,596 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-11 00:28:58,597 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 00:28:58,597 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 00:28:58,624 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2021-10-11 00:28:58,626 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2021-10-11 00:28:58,628 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && 1bv32 == \result [2021-10-11 00:28:58,663 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_99599b21-b7c8-4f82-98b0-bc6e9af44e7c/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:28:58,668 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:28:58,670 INFO L168 Benchmark]: Toolchain (without parser) took 3966.17 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 35.0 MB in the beginning and 36.9 MB in the end (delta: -2.0 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:58,670 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:58,672 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.71 ms. Allocated memory is still 56.6 MB. Free memory was 34.7 MB in the beginning and 23.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:58,673 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.22 ms. Allocated memory is still 56.6 MB. Free memory was 23.4 MB in the beginning and 39.4 MB in the end (delta: -16.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:58,673 INFO L168 Benchmark]: Boogie Preprocessor took 68.84 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 37.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:58,674 INFO L168 Benchmark]: RCFGBuilder took 797.64 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 37.7 MB in the beginning and 47.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:58,674 INFO L168 Benchmark]: TraceAbstraction took 2600.14 ms. Allocated memory is still 69.2 MB. Free memory was 47.5 MB in the beginning and 40.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:58,675 INFO L168 Benchmark]: Witness Printer took 89.25 ms. Allocated memory is still 69.2 MB. Free memory was 40.2 MB in the beginning and 36.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:58,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 56.6 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 324.71 ms. Allocated memory is still 56.6 MB. Free memory was 34.7 MB in the beginning and 23.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.22 ms. Allocated memory is still 56.6 MB. Free memory was 23.4 MB in the beginning and 39.4 MB in the end (delta: -16.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.84 ms. Allocated memory is still 56.6 MB. Free memory was 39.4 MB in the beginning and 37.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 797.64 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 37.7 MB in the beginning and 47.7 MB in the end (delta: -10.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2600.14 ms. Allocated memory is still 69.2 MB. Free memory was 47.5 MB in the beginning and 40.2 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Witness Printer took 89.25 ms. Allocated memory is still 69.2 MB. Free memory was 40.2 MB in the beginning and 36.9 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 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[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: - PositiveResult [Line: 81]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant [2021-10-11 00:28:58,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,691 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,691 WARN L417 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()) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 17]: Loop Invariant [2021-10-11 00:28:58,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,692 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,693 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,693 WARN L417 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()) == \result) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x)) && 1bv32 == \result - InvariantResult [Line: 22]: Loop Invariant [2021-10-11 00:28:58,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-11 00:28:58,695 WARN L417 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) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 SDtfs, 28 SDslu, 76 SDs, 0 SdLazy, 35 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 41 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 35 ConstructedInterpolants, 11 QuantifiedInterpolants, 1805 SizeOfPredicates, 16 NumberOfNonLiveVariables, 147 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 proved your program to be correct! Received shutdown request...