./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD --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 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f ....................................................................................................................................................................................................................................................................................................................................... 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_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD --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 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 00:03:26,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:03:26,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:03:26,705 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:03:26,706 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:03:26,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:03:26,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:03:26,713 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:03:26,717 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:03:26,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:03:26,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:03:26,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:03:26,723 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:03:26,725 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:03:26,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:03:26,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:03:26,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:03:26,733 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:03:26,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:03:26,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:03:26,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:03:26,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:03:26,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:03:26,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:03:26,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:03:26,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:03:26,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:03:26,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:03:26,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:03:26,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:03:26,758 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:03:26,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:03:26,761 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:03:26,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:03:26,764 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:03:26,764 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:03:26,765 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:03:26,766 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:03:26,766 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:03:26,768 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:03:26,769 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:03:26,770 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-29 00:03:26,804 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:03:26,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:03:26,809 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:03:26,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:03:26,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:03:26,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:03:26,813 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:03:26,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:03:26,813 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:03:26,814 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 00:03:26,814 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:03:26,815 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:03:26,815 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 00:03:26,815 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 00:03:26,816 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 00:03:26,816 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:03:26,816 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:03:26,816 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:03:26,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 00:03:26,817 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:03:26,817 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:03:26,817 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 00:03:26,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:26,818 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:03:26,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 00:03:26,819 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 00:03:26,819 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-29 00:03:26,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 00:03:26,820 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-29 00:03:26,821 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-29 00:03:26,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 00:03:26,822 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:03:26,822 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_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f [2021-10-29 00:03:27,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:03:27,105 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:03:27,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:03:27,108 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:03:27,109 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:03:27,109 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-29 00:03:27,218 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data/21d0add24/b1be56e80e744ef49677f7368375ea2a/FLAGc9f404cc9 [2021-10-29 00:03:27,769 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:03:27,769 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-29 00:03:27,777 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data/21d0add24/b1be56e80e744ef49677f7368375ea2a/FLAGc9f404cc9 [2021-10-29 00:03:28,129 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data/21d0add24/b1be56e80e744ef49677f7368375ea2a [2021-10-29 00:03:28,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:03:28,134 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:03:28,147 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:28,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:03:28,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:03:28,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@699bb622 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28, skipping insertion in model container [2021-10-29 00:03:28,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,160 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:03:28,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:03:28,424 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-29 00:03:28,427 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:28,435 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:03:28,476 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-29 00:03:28,477 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:28,495 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:03:28,495 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28 WrapperNode [2021-10-29 00:03:28,496 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:28,497 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:28,497 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:03:28,497 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:03:28,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,550 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:28,551 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:03:28,551 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:03:28,551 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:03:28,562 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,563 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,568 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,581 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,587 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:03:28,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:03:28,596 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:03:28,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:03:28,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (1/1) ... [2021-10-29 00:03:28,616 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:28,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:28,641 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:28,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 00:03:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 00:03:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:03:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-29 00:03:28,697 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-29 00:03:28,698 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-29 00:03:28,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:03:28,698 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:03:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-29 00:03:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-29 00:03:28,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 00:03:29,333 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:03:29,334 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-29 00:03:29,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:29 BoogieIcfgContainer [2021-10-29 00:03:29,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:03:29,338 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 00:03:29,338 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 00:03:29,342 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 00:03:29,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:03:28" (1/3) ... [2021-10-29 00:03:29,343 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c5970f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:29, skipping insertion in model container [2021-10-29 00:03:29,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:28" (2/3) ... [2021-10-29 00:03:29,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30c5970f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:29, skipping insertion in model container [2021-10-29 00:03:29,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:29" (3/3) ... [2021-10-29 00:03:29,345 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-10-29 00:03:29,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 00:03:29,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 00:03:29,408 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 00:03:29,416 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 00:03:29,416 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 00:03:29,438 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:29,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 00:03:29,454 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:29,455 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:29,456 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:29,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:29,470 INFO L85 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2021-10-29 00:03:29,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:29,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587269258] [2021-10-29 00:03:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:29,483 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:29,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:29,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:29,662 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-29 00:03:29,662 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587269258] [2021-10-29 00:03:29,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587269258] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:29,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:29,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-29 00:03:29,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971590324] [2021-10-29 00:03:29,669 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 00:03:29,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-29 00:03:29,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 00:03:29,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 00:03:29,684 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:29,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:29,703 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2021-10-29 00:03:29,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 00:03:29,705 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 00:03:29,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:29,714 INFO L225 Difference]: With dead ends: 79 [2021-10-29 00:03:29,715 INFO L226 Difference]: Without dead ends: 37 [2021-10-29 00:03:29,718 INFO L786 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 [2021-10-29 00:03:29,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-29 00:03:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-29 00:03:29,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:29,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-10-29 00:03:29,751 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2021-10-29 00:03:29,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:29,751 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-10-29 00:03:29,752 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:29,752 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-10-29 00:03:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 00:03:29,753 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:29,753 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:29,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-29 00:03:29,754 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:29,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:29,755 INFO L85 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2021-10-29 00:03:29,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-29 00:03:29,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589841675] [2021-10-29 00:03:29,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:29,756 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 00:03:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:29,829 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 00:03:29,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 00:03:29,935 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-29 00:03:29,936 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 00:03:29,938 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:03:29,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-29 00:03:29,945 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 00:03:29,948 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:03:30,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:03:30 BoogieIcfgContainer [2021-10-29 00:03:30,032 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:03:30,033 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:03:30,033 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:03:30,034 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:03:30,035 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:29" (3/4) ... [2021-10-29 00:03:30,038 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-29 00:03:30,038 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:03:30,042 INFO L168 Benchmark]: Toolchain (without parser) took 1906.20 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 76.8 MB in the beginning and 108.9 MB in the end (delta: -32.1 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:30,042 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory was 60.7 MB in the beginning and 60.7 MB in the end (delta: 69.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:30,046 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.58 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 76.6 MB in the beginning and 111.5 MB in the end (delta: -34.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:30,048 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.95 ms. Allocated memory is still 138.4 MB. Free memory was 111.5 MB in the beginning and 109.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:30,049 INFO L168 Benchmark]: Boogie Preprocessor took 43.98 ms. Allocated memory is still 138.4 MB. Free memory was 109.4 MB in the beginning and 107.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:30,049 INFO L168 Benchmark]: RCFGBuilder took 740.47 ms. Allocated memory is still 138.4 MB. Free memory was 107.7 MB in the beginning and 91.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:30,050 INFO L168 Benchmark]: TraceAbstraction took 693.68 ms. Allocated memory is still 138.4 MB. Free memory was 91.6 MB in the beginning and 109.8 MB in the end (delta: -18.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-10-29 00:03:30,050 INFO L168 Benchmark]: Witness Printer took 6.28 ms. Allocated memory is still 138.4 MB. Free memory is still 109.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:03:30,054 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 104.9 MB. Free memory was 60.7 MB in the beginning and 60.7 MB in the end (delta: 69.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 349.58 ms. Allocated memory was 104.9 MB in the beginning and 138.4 MB in the end (delta: 33.6 MB). Free memory was 76.6 MB in the beginning and 111.5 MB in the end (delta: -34.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.95 ms. Allocated memory is still 138.4 MB. Free memory was 111.5 MB in the beginning and 109.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.98 ms. Allocated memory is still 138.4 MB. Free memory was 109.4 MB in the beginning and 107.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 740.47 ms. Allocated memory is still 138.4 MB. Free memory was 107.7 MB in the beginning and 91.9 MB in the end (delta: 15.8 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 693.68 ms. Allocated memory is still 138.4 MB. Free memory was 91.6 MB in the beginning and 109.8 MB in the end (delta: -18.2 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.28 ms. Allocated memory is still 138.4 MB. Free memory is still 109.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 147]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 23, overapproximation of bitwiseAnd at line 56, overapproximation of someBinaryArithmeticDOUBLEoperation at line 73, overapproximation of someBinaryDOUBLEComparisonOperation at line 146. Possible FailurePath: [L19-L44] static const double one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+300, twom1000_exp = 9.33263618503218878990e-302, o_threshold_exp = 7.09782712893383973096e+02, u_threshold_exp = -7.45133219101941108420e+02, ln2HI_exp[2] = { 6.93147180369123816490e-01, -6.93147180369123816490e-01, }, ln2LO_exp[2] = { 1.90821492927058770002e-10, -1.90821492927058770002e-10, }, invln2_exp = 1.44269504088896338700e+00, P1_exp = 1.66666666666666019037e-01, P2_exp = -2.77777777770155933842e-03, P3_exp = 6.61375632143793436117e-05, P4_exp = -1.65339022054652515390e-06, P5_exp = 4.13813679705723846039e-08; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L139] double x = __VERIFIER_nondet_double(); [L141] COND TRUE x == 0.0 || x == -0.0 [L47] double y, hi, lo, c, t; [L48] __int32_t k = 0, xsb; [L49] __uint32_t hx; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L52] ieee_double_shape_type gh_u; [L53] gh_u.value = (x) [L54] EXPR gh_u.parts.msw [L54] (hx) = gh_u.parts.msw [L56] xsb = (hx >> 31) & 1 [L57] hx &= 0x7fffffff VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L59] COND TRUE hx >= 0x40862E42 VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L60] COND FALSE !(hx >= 0x7ff00000) VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L72] COND TRUE x > o_threshold_exp [L73] return huge_exp * huge_exp; VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L143] double res = __ieee754_exp(x); [L146] COND TRUE res != 1.0 VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L147] reach_error() VAL [halF_exp={7:0}, huge_exp=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, invln2_exp=1442695040888963387/1000000000000000000, ln2HI_exp={6:0}, ln2LO_exp={9:0}, o_threshold_exp=88722839111672996637/125000000000000000, one_exp=1, P1_exp=166666666666666019037/1000000000000000000000, P3_exp=661375632143793436117/10000000000000000000000000, P5_exp=413813679705723846039/10000000000000000000000000000, twom1000_exp=93326361850321887899/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 53 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=41occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-29 00:03:30,112 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 00:03:32,867 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 00:03:32,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 00:03:32,922 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 00:03:32,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 00:03:32,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 00:03:32,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 00:03:32,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 00:03:32,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 00:03:32,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 00:03:32,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 00:03:32,947 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 00:03:32,948 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 00:03:32,951 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 00:03:32,953 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 00:03:32,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 00:03:32,960 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 00:03:32,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 00:03:32,963 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 00:03:32,972 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 00:03:32,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 00:03:32,976 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 00:03:32,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 00:03:32,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 00:03:32,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 00:03:32,993 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 00:03:32,993 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 00:03:32,996 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 00:03:32,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 00:03:32,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 00:03:32,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 00:03:33,000 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 00:03:33,003 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 00:03:33,004 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 00:03:33,006 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 00:03:33,006 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 00:03:33,007 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 00:03:33,008 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 00:03:33,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 00:03:33,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 00:03:33,012 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 00:03:33,013 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-29 00:03:33,064 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 00:03:33,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 00:03:33,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-29 00:03:33,066 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-29 00:03:33,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-29 00:03:33,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-29 00:03:33,069 INFO L138 SettingsManager]: * Use SBE=true [2021-10-29 00:03:33,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 00:03:33,069 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 00:03:33,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 00:03:33,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 00:03:33,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 00:03:33,072 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 00:03:33,072 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 00:03:33,073 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-29 00:03:33,073 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-29 00:03:33,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 00:03:33,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 00:03:33,074 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 00:03:33,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 00:03:33,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 00:03:33,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-29 00:03:33,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 00:03:33,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:33,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 00:03:33,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 00:03:33,077 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 00:03:33,077 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-29 00:03:33,077 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-29 00:03:33,078 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-29 00:03:33,078 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-29 00:03:33,078 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 00:03:33,079 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 00:03:33,079 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 00:03:33,079 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_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a8e4ffd9ea97f05ef6346cf53038fe7de9dfb80c74cdd9b6a5c49fbcb6c0f8f [2021-10-29 00:03:33,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 00:03:33,584 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 00:03:33,587 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 00:03:33,589 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 00:03:33,590 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 00:03:33,591 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-29 00:03:33,677 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data/d81c5f693/69357b89ef6c4132a37f8f18585801d6/FLAGa082b8715 [2021-10-29 00:03:34,287 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 00:03:34,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/sv-benchmarks/c/float-newlib/double_req_bl_0832.c [2021-10-29 00:03:34,296 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data/d81c5f693/69357b89ef6c4132a37f8f18585801d6/FLAGa082b8715 [2021-10-29 00:03:34,635 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/data/d81c5f693/69357b89ef6c4132a37f8f18585801d6 [2021-10-29 00:03:34,638 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 00:03:34,640 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 00:03:34,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:34,642 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 00:03:34,645 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 00:03:34,646 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:34,647 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e841d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34, skipping insertion in model container [2021-10-29 00:03:34,648 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:34,655 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 00:03:34,677 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 00:03:34,867 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-29 00:03:34,870 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:34,904 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 00:03:34,955 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/sv-benchmarks/c/float-newlib/double_req_bl_0832.c[3927,3940] [2021-10-29 00:03:34,956 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 00:03:34,978 INFO L208 MainTranslator]: Completed translation [2021-10-29 00:03:34,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34 WrapperNode [2021-10-29 00:03:34,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 00:03:34,980 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:34,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 00:03:34,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 00:03:34,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,004 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 00:03:35,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 00:03:35,040 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 00:03:35,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 00:03:35,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,063 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,100 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 00:03:35,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 00:03:35,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 00:03:35,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 00:03:35,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (1/1) ... [2021-10-29 00:03:35,139 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 00:03:35,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-29 00:03:35,170 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 00:03:35,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 00:03:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-29 00:03:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-29 00:03:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-29 00:03:35,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 00:03:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-29 00:03:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-29 00:03:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 00:03:35,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 00:03:35,223 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-29 00:03:35,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-29 00:03:50,765 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 00:03:50,766 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-29 00:03:50,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:50 BoogieIcfgContainer [2021-10-29 00:03:50,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 00:03:50,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 00:03:50,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 00:03:50,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 00:03:50,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 12:03:34" (1/3) ... [2021-10-29 00:03:50,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5bac79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:50, skipping insertion in model container [2021-10-29 00:03:50,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 12:03:34" (2/3) ... [2021-10-29 00:03:50,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e5bac79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 12:03:50, skipping insertion in model container [2021-10-29 00:03:50,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:50" (3/3) ... [2021-10-29 00:03:50,785 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0832.c [2021-10-29 00:03:50,792 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 00:03:50,793 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-29 00:03:50,874 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 00:03:50,884 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 00:03:50,884 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-29 00:03:50,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:50,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-29 00:03:50,933 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:50,933 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:50,934 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:50,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:50,940 INFO L85 PathProgramCache]: Analyzing trace with hash 848189856, now seen corresponding path program 1 times [2021-10-29 00:03:50,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:03:50,954 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [54340344] [2021-10-29 00:03:50,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:50,955 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:03:50,956 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:03:50,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:03:50,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-29 00:03:51,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:51,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-29 00:03:51,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:51,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:51,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:03:51,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:51,718 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:03:51,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [54340344] [2021-10-29 00:03:51,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [54340344] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:51,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:51,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-29 00:03:51,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271598140] [2021-10-29 00:03:51,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-29 00:03:51,728 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:03:51,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-29 00:03:51,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 00:03:51,746 INFO L87 Difference]: Start difference. First operand has 41 states, 39 states have (on average 1.6923076923076923) internal successors, (66), 40 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:51,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:03:51,765 INFO L93 Difference]: Finished difference Result 79 states and 128 transitions. [2021-10-29 00:03:51,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-29 00:03:51,767 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-29 00:03:51,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:03:51,777 INFO L225 Difference]: With dead ends: 79 [2021-10-29 00:03:51,777 INFO L226 Difference]: Without dead ends: 37 [2021-10-29 00:03:51,780 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-29 00:03:51,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-29 00:03:51,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-29 00:03:51,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 36 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:51,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2021-10-29 00:03:51,826 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 11 [2021-10-29 00:03:51,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:03:51,827 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2021-10-29 00:03:51,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:03:51,827 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2021-10-29 00:03:51,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-29 00:03:51,828 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:03:51,828 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:03:51,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-29 00:03:52,032 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:03:52,033 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:03:52,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:03:52,033 INFO L85 PathProgramCache]: Analyzing trace with hash 963881224, now seen corresponding path program 1 times [2021-10-29 00:03:52,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:03:52,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [105308989] [2021-10-29 00:03:52,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:03:52,035 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:03:52,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:03:52,036 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:03:52,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-29 00:03:52,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:03:52,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 00:03:52,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:03:53,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:53,294 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:03:53,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:03:53,991 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:03:53,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [105308989] [2021-10-29 00:03:53,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [105308989] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:03:53,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:03:53,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-29 00:03:53,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506133951] [2021-10-29 00:03:53,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-29 00:03:53,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:03:53,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-29 00:03:53,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:03:53,996 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:05,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:04:05,223 INFO L93 Difference]: Finished difference Result 61 states and 75 transitions. [2021-10-29 00:04:05,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 00:04:05,652 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 00:04:05,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:04:05,653 INFO L225 Difference]: With dead ends: 61 [2021-10-29 00:04:05,654 INFO L226 Difference]: Without dead ends: 31 [2021-10-29 00:04:05,655 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-10-29 00:04:05,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-10-29 00:04:05,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 27. [2021-10-29 00:04:05,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1153846153846154) internal successors, (29), 26 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:05,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 29 transitions. [2021-10-29 00:04:05,660 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 29 transitions. Word has length 12 [2021-10-29 00:04:05,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:04:05,661 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 29 transitions. [2021-10-29 00:04:05,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:04:05,662 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 29 transitions. [2021-10-29 00:04:05,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-29 00:04:05,663 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:04:05,663 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:04:05,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 00:04:05,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:04:05,875 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:04:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:04:05,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1714660040, now seen corresponding path program 1 times [2021-10-29 00:04:05,877 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:04:05,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [450888627] [2021-10-29 00:04:05,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:04:05,877 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:04:05,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:04:05,879 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:04:05,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 00:04:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:04:06,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 00:04:06,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:04:09,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:04:09,183 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:04:22,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:04:22,617 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:04:22,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [450888627] [2021-10-29 00:04:22,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [450888627] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:04:22,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:04:22,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-29 00:04:22,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717389663] [2021-10-29 00:04:22,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-29 00:04:22,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:04:22,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-29 00:04:22,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-29 00:04:22,622 INFO L87 Difference]: Start difference. First operand 27 states and 29 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:05:06,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:05:06,176 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-10-29 00:05:06,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-29 00:05:06,177 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-10-29 00:05:06,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:05:06,178 INFO L225 Difference]: With dead ends: 31 [2021-10-29 00:05:06,178 INFO L226 Difference]: Without dead ends: 27 [2021-10-29 00:05:06,179 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2021-10-29 00:05:06,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-10-29 00:05:06,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-10-29 00:05:06,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0769230769230769) internal successors, (28), 26 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:05:06,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2021-10-29 00:05:06,185 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 13 [2021-10-29 00:05:06,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:05:06,186 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2021-10-29 00:05:06,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:05:06,187 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2021-10-29 00:05:06,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-29 00:05:06,187 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:05:06,188 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:05:06,205 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-29 00:05:06,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:05:06,393 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:05:06,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:05:06,393 INFO L85 PathProgramCache]: Analyzing trace with hash 1479203763, now seen corresponding path program 1 times [2021-10-29 00:05:06,394 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:05:06,394 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [351130222] [2021-10-29 00:05:06,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:05:06,394 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:05:06,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:05:06,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:05:06,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-29 00:05:10,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:05:10,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-29 00:05:10,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:05:12,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:05:12,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:05:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:05:25,219 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:05:25,220 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [351130222] [2021-10-29 00:05:25,220 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [351130222] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:05:25,221 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:05:25,221 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-29 00:05:25,221 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071580803] [2021-10-29 00:05:25,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-29 00:05:25,223 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:05:25,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-29 00:05:25,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:05:25,224 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:05:25,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:05:25,816 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2021-10-29 00:05:25,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:05:25,819 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-10-29 00:05:25,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:05:25,820 INFO L225 Difference]: With dead ends: 27 [2021-10-29 00:05:25,820 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 00:05:25,821 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-29 00:05:25,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 00:05:25,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 00:05:25,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:05:25,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 00:05:25,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-29 00:05:25,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:05:25,823 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 00:05:25,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:05:25,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 00:05:25,824 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 00:05:25,829 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:05:25,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-29 00:05:26,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:05:26,047 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 00:05:26,052 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:05:26,100 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:05:26,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:05:26,113 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:05:26,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:05:26,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:05:27,097 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 71) no Hoare annotation was computed. [2021-10-29 00:05:27,097 INFO L857 garLoopResultBuilder]: For program point L118-1(lines 118 122) no Hoare annotation was computed. [2021-10-29 00:05:27,098 INFO L853 garLoopResultBuilder]: At program point L118-2(lines 118 122) the Hoare annotation is: false [2021-10-29 00:05:27,099 INFO L857 garLoopResultBuilder]: For program point L102(lines 102 130) no Hoare annotation was computed. [2021-10-29 00:05:27,100 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 00:05:27,100 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 00:05:27,100 INFO L860 garLoopResultBuilder]: At program point L152(lines 133 153) the Hoare annotation is: true [2021-10-29 00:05:27,101 INFO L857 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2021-10-29 00:05:27,101 INFO L857 garLoopResultBuilder]: For program point L70-2(line 70) no Hoare annotation was computed. [2021-10-29 00:05:27,101 INFO L857 garLoopResultBuilder]: For program point L62-1(lines 62 66) no Hoare annotation was computed. [2021-10-29 00:05:27,102 INFO L853 garLoopResultBuilder]: At program point L62-2(lines 62 66) the Hoare annotation is: false [2021-10-29 00:05:27,102 INFO L857 garLoopResultBuilder]: For program point L62-3(lines 60 71) no Hoare annotation was computed. [2021-10-29 00:05:27,102 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 88) no Hoare annotation was computed. [2021-10-29 00:05:27,103 INFO L857 garLoopResultBuilder]: For program point L79-2(lines 79 88) no Hoare annotation was computed. [2021-10-29 00:05:27,103 INFO L857 garLoopResultBuilder]: For program point L104-1(lines 104 108) no Hoare annotation was computed. [2021-10-29 00:05:27,103 INFO L853 garLoopResultBuilder]: At program point L104-2(lines 104 108) the Hoare annotation is: false [2021-10-29 00:05:27,104 INFO L853 garLoopResultBuilder]: At program point L129(lines 46 131) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (exists ((ULTIMATE.start___ieee754_exp_~x (_ FloatingPoint 11 53))) (and (= (fp.add currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) ULTIMATE.start___ieee754_exp_~x) |ULTIMATE.start___ieee754_exp_#res|) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53)))) (= currentRoundingMode roundNearestTiesToEven) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53))) [2021-10-29 00:05:27,104 INFO L857 garLoopResultBuilder]: For program point L146(lines 146 149) no Hoare annotation was computed. [2021-10-29 00:05:27,104 INFO L857 garLoopResultBuilder]: For program point L72(lines 72 73) no Hoare annotation was computed. [2021-10-29 00:05:27,104 INFO L857 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-10-29 00:05:27,105 INFO L857 garLoopResultBuilder]: For program point L98(lines 98 101) no Hoare annotation was computed. [2021-10-29 00:05:27,105 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 00:05:27,105 INFO L857 garLoopResultBuilder]: For program point L123(lines 123 128) no Hoare annotation was computed. [2021-10-29 00:05:27,106 INFO L857 garLoopResultBuilder]: For program point L90(lines 90 93) no Hoare annotation was computed. [2021-10-29 00:05:27,106 INFO L857 garLoopResultBuilder]: For program point L123-1(lines 116 130) no Hoare annotation was computed. [2021-10-29 00:05:27,106 INFO L857 garLoopResultBuilder]: For program point L123-2(lines 123 128) no Hoare annotation was computed. [2021-10-29 00:05:27,106 INFO L857 garLoopResultBuilder]: For program point L90-2(lines 78 93) no Hoare annotation was computed. [2021-10-29 00:05:27,107 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 147) no Hoare annotation was computed. [2021-10-29 00:05:27,107 INFO L857 garLoopResultBuilder]: For program point L74(lines 74 75) no Hoare annotation was computed. [2021-10-29 00:05:27,107 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 00:05:27,108 INFO L857 garLoopResultBuilder]: For program point L91(lines 91 92) no Hoare annotation was computed. [2021-10-29 00:05:27,108 INFO L857 garLoopResultBuilder]: For program point L141(lines 141 150) no Hoare annotation was computed. [2021-10-29 00:05:27,108 INFO L857 garLoopResultBuilder]: For program point L141-2(lines 141 150) no Hoare annotation was computed. [2021-10-29 00:05:27,108 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 76) no Hoare annotation was computed. [2021-10-29 00:05:27,109 INFO L857 garLoopResultBuilder]: For program point L59-2(lines 46 131) no Hoare annotation was computed. [2021-10-29 00:05:27,109 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-10-29 00:05:27,109 INFO L853 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: (and (= ~one_exp~0 ((_ to_fp 11 53) currentRoundingMode 1.0)) (= ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_exp~0) (= currentRoundingMode roundNearestTiesToEven) (fp.eq ULTIMATE.start___ieee754_exp_~x (_ +zero 11 53))) [2021-10-29 00:05:27,110 INFO L857 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-10-29 00:05:27,110 INFO L857 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-10-29 00:05:27,110 INFO L857 garLoopResultBuilder]: For program point L109-1(lines 102 116) no Hoare annotation was computed. [2021-10-29 00:05:27,110 INFO L857 garLoopResultBuilder]: For program point L109-2(lines 109 114) no Hoare annotation was computed. [2021-10-29 00:05:27,115 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-10-29 00:05:27,117 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:05:27,128 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 00:05:27,145 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 00:05:27,157 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-29 00:05:27,158 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-29 00:05:27,159 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 00:05:27,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-29 00:05:27,160 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-29 00:05:27,160 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 00:05:27,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:05:27 BoogieIcfgContainer [2021-10-29 00:05:27,162 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:05:27,165 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:05:27,166 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:05:27,166 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:05:27,167 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 12:03:50" (3/4) ... [2021-10-29 00:05:27,184 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 00:05:27,221 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-29 00:05:27,222 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2021-10-29 00:05:27,222 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:05:27,223 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:05:27,277 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) [2021-10-29 00:05:27,382 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:05:27,382 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:05:27,385 INFO L168 Benchmark]: Toolchain (without parser) took 112743.44 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.4 MB in the beginning and 46.1 MB in the end (delta: -13.7 MB). Peak memory consumption was 21.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:27,385 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:05:27,386 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.74 ms. Allocated memory is still 54.5 MB. Free memory was 32.2 MB in the beginning and 33.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:27,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.90 ms. Allocated memory is still 54.5 MB. Free memory was 33.7 MB in the beginning and 31.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:27,387 INFO L168 Benchmark]: Boogie Preprocessor took 88.83 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 29.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:27,388 INFO L168 Benchmark]: RCFGBuilder took 15644.95 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.5 MB in the beginning and 35.5 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:27,388 INFO L168 Benchmark]: TraceAbstraction took 96386.02 ms. Allocated memory is still 67.1 MB. Free memory was 35.0 MB in the beginning and 30.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:27,389 INFO L168 Benchmark]: Witness Printer took 217.83 ms. Allocated memory is still 67.1 MB. Free memory was 30.8 MB in the beginning and 46.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 00:05:27,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 54.5 MB. Free memory is still 35.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 337.74 ms. Allocated memory is still 54.5 MB. Free memory was 32.2 MB in the beginning and 33.7 MB in the end (delta: -1.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 56.90 ms. Allocated memory is still 54.5 MB. Free memory was 33.7 MB in the beginning and 31.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.83 ms. Allocated memory is still 54.5 MB. Free memory was 31.7 MB in the beginning and 29.5 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 15644.95 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 29.5 MB in the beginning and 35.5 MB in the end (delta: -6.0 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 96386.02 ms. Allocated memory is still 67.1 MB. Free memory was 35.0 MB in the beginning and 30.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 5.9 MB. Max. memory is 16.1 GB. * Witness Printer took 217.83 ms. Allocated memory is still 67.1 MB. Free memory was 30.8 MB in the beginning and 46.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 147]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 41 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 96.2s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 55.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 106 SDtfs, 73 SDslu, 148 SDs, 0 SdLazy, 44 SolverSat, 5 SolverUnsat, 19 SolverUnknown, 0 SolverNotchecked, 50.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 98 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 17.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=41occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 46 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 33.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 94 ConstructedInterpolants, 10 QuantifiedInterpolants, 578 SizeOfPredicates, 21 NumberOfNonLiveVariables, 341 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 51]: Loop Invariant [2021-10-29 00:05:27,404 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 00:05:27,406 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) == huge_exp) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 46]: Loop Invariant [2021-10-29 00:05:27,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-29 00:05:27,408 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-29 00:05:27,408 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 00:05:27,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-29 00:05:27,409 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_exp_~x,QUANTIFIED] [2021-10-29 00:05:27,409 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((one_exp == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) && (\exists ULTIMATE.start___ieee754_exp_~x : C_DOUBLE :: ~fp.add~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ULTIMATE.start___ieee754_exp_~x) == \result && ~fp.eq~DOUBLE(ULTIMATE.start___ieee754_exp_~x, ~Pluszero~LONGDOUBLE()))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.eq~DOUBLE(x, ~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 133]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-29 00:05:27,632 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 00:05:27,697 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_26d11730-aa5b-4481-b4e1-5fb4dc31d047/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...