./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0 --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 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:09:27,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:09:27,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:09:27,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:09:27,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:09:27,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:09:27,711 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:09:27,714 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:09:27,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:09:27,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:09:27,718 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:09:27,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:09:27,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:09:27,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:09:27,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:09:27,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:09:27,726 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:09:27,728 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:09:27,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:09:27,732 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:09:27,734 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:09:27,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:09:27,739 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:09:27,740 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:09:27,743 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:09:27,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:09:27,744 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:09:27,745 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:09:27,746 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:09:27,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:09:27,748 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:09:27,749 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:09:27,750 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:09:27,751 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:09:27,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:09:27,761 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:09:27,762 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:09:27,762 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:09:27,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:09:27,763 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:09:27,764 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:09:27,765 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-22 16:09:27,807 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:09:27,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:09:27,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:09:27,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:09:27,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:09:27,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:09:27,809 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:09:27,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:09:27,809 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:09:27,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-22 16:09:27,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:09:27,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:09:27,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:09:27,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:09:27,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:09:27,811 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:09:27,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:09:27,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:09:27,816 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:09:27,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:09:27,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:09:27,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:09:27,817 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:09:27,817 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:09:27,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:09:27,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:09:27,818 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-22 16:09:27,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-22 16:09:27,819 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:09:27,820 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:09:27,821 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:09:27,821 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:09:27,821 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_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 [2021-11-22 16:09:28,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:09:28,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:09:28,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:09:28,176 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:09:28,177 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:09:28,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2021-11-22 16:09:28,248 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data/4456608af/1c0e275db2354ae8bb66f618c1776245/FLAGebbd523c6 [2021-11-22 16:09:28,762 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:09:28,763 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2021-11-22 16:09:28,772 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data/4456608af/1c0e275db2354ae8bb66f618c1776245/FLAGebbd523c6 [2021-11-22 16:09:29,124 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data/4456608af/1c0e275db2354ae8bb66f618c1776245 [2021-11-22 16:09:29,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:09:29,128 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:09:29,133 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:09:29,134 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:09:29,139 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:09:29,140 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,141 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63762efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29, skipping insertion in model container [2021-11-22 16:09:29,142 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:09:29,212 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:09:29,418 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2021-11-22 16:09:29,424 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2021-11-22 16:09:29,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:09:29,472 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:09:29,487 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2021-11-22 16:09:29,489 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2021-11-22 16:09:29,517 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:09:29,537 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:09:29,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29 WrapperNode [2021-11-22 16:09:29,538 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:09:29,539 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:09:29,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:09:29,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:09:29,546 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,556 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,590 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 13, calls inlined = 11, statements flattened = 299 [2021-11-22 16:09:29,590 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:09:29,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:09:29,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:09:29,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:09:29,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,600 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,620 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,623 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,628 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:09:29,629 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:09:29,629 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:09:29,629 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:09:29,636 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (1/1) ... [2021-11-22 16:09:29,657 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:09:29,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:09:29,685 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:09:29,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:09:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:09:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-22 16:09:29,729 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:09:29,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:09:29,799 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:09:29,800 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:09:30,139 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:09:30,148 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:09:30,148 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-22 16:09:30,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:09:30 BoogieIcfgContainer [2021-11-22 16:09:30,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:09:30,152 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:09:30,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:09:30,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:09:30,157 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:09:29" (1/3) ... [2021-11-22 16:09:30,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eac751a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:09:30, skipping insertion in model container [2021-11-22 16:09:30,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:29" (2/3) ... [2021-11-22 16:09:30,158 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7eac751a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:09:30, skipping insertion in model container [2021-11-22 16:09:30,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:09:30" (3/3) ... [2021-11-22 16:09:30,160 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_5a.c.cil.c [2021-11-22 16:09:30,166 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:09:30,167 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-22 16:09:30,228 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:09:30,247 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:09:30,248 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 16:09:30,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 79 states have (on average 1.7341772151898733) internal successors, (137), 81 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:09:30,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 16:09:30,281 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:09:30,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:09:30,283 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:09:30,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:09:30,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1804936583, now seen corresponding path program 1 times [2021-11-22 16:09:30,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:09:30,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242492980] [2021-11-22 16:09:30,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:09:30,300 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:09:30,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:09:30,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:09:30,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-22 16:09:30,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242492980] [2021-11-22 16:09:30,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242492980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-22 16:09:30,445 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:09:30,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-22 16:09:30,448 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847755944] [2021-11-22 16:09:30,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-22 16:09:30,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:09:30,455 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-22 16:09:30,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:09:30,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:09:30,530 INFO L87 Difference]: Start difference. First operand has 82 states, 79 states have (on average 1.7341772151898733) internal successors, (137), 81 states have internal predecessors, (137), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:09:30,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:09:30,607 INFO L93 Difference]: Finished difference Result 152 states and 250 transitions. [2021-11-22 16:09:30,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:09:30,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-22 16:09:30,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:09:30,636 INFO L225 Difference]: With dead ends: 152 [2021-11-22 16:09:30,636 INFO L226 Difference]: Without dead ends: 74 [2021-11-22 16:09:30,640 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:09:30,644 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:09:30,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:09:30,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-22 16:09:30,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-22 16:09:30,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 1.5) internal successors, (108), 73 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:09:30,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2021-11-22 16:09:30,707 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 7 [2021-11-22 16:09:30,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:09:30,708 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2021-11-22 16:09:30,708 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:09:30,709 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2021-11-22 16:09:30,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 16:09:30,710 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:09:30,710 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:09:30,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-22 16:09:30,711 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:09:30,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:09:30,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1804996165, now seen corresponding path program 1 times [2021-11-22 16:09:30,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-22 16:09:30,718 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430954732] [2021-11-22 16:09:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:09:30,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-22 16:09:30,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:09:30,757 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:09:30,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:09:30,821 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-22 16:09:30,822 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 16:09:30,824 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 16:09:30,826 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-22 16:09:30,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-22 16:09:30,836 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 16:09:30,840 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:09:30,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:09:30 BoogieIcfgContainer [2021-11-22 16:09:30,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:09:30,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:09:30,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:09:30,877 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:09:30,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:09:30" (3/4) ... [2021-11-22 16:09:30,885 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-22 16:09:30,885 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:09:30,888 INFO L158 Benchmark]: Toolchain (without parser) took 1757.89ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 53.4MB in the beginning and 84.0MB in the end (delta: -30.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:09:30,889 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 70.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:09:30,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 405.25ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 65.9MB in the end (delta: -12.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-22 16:09:30,899 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.12ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 63.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:09:30,902 INFO L158 Benchmark]: Boogie Preprocessor took 36.93ms. Allocated memory is still 94.4MB. Free memory was 63.8MB in the beginning and 62.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:09:30,903 INFO L158 Benchmark]: RCFGBuilder took 521.92ms. Allocated memory is still 94.4MB. Free memory was 62.0MB in the beginning and 45.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-11-22 16:09:30,904 INFO L158 Benchmark]: TraceAbstraction took 723.60ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 44.9MB in the beginning and 84.0MB in the end (delta: -39.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:09:30,904 INFO L158 Benchmark]: Witness Printer took 8.43ms. Allocated memory is still 117.4MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:09:30,911 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 94.4MB. Free memory was 70.1MB in the beginning and 70.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 405.25ms. Allocated memory is still 94.4MB. Free memory was 53.3MB in the beginning and 65.9MB in the end (delta: -12.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.12ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 63.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.93ms. Allocated memory is still 94.4MB. Free memory was 63.8MB in the beginning and 62.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 521.92ms. Allocated memory is still 94.4MB. Free memory was 62.0MB in the beginning and 45.3MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 723.60ms. Allocated memory was 94.4MB in the beginning and 117.4MB in the end (delta: 23.1MB). Free memory was 44.9MB in the beginning and 84.0MB in the end (delta: -39.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 8.43ms. Allocated memory is still 117.4MB. Free memory is still 84.0MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=49, x=49] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=49, x=49] [L48] reach_error() VAL [IN=49, x=49] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 118 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-22 16:09:30,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0 --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 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-22 16:09:33,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-22 16:09:33,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-22 16:09:33,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-22 16:09:33,717 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-22 16:09:33,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-22 16:09:33,721 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-22 16:09:33,724 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-22 16:09:33,726 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-22 16:09:33,728 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-22 16:09:33,729 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-22 16:09:33,731 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-22 16:09:33,731 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-22 16:09:33,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-22 16:09:33,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-22 16:09:33,737 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-22 16:09:33,738 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-22 16:09:33,739 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-22 16:09:33,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-22 16:09:33,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-22 16:09:33,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-22 16:09:33,752 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-22 16:09:33,754 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-22 16:09:33,756 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-22 16:09:33,761 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-22 16:09:33,766 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-22 16:09:33,766 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-22 16:09:33,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-22 16:09:33,770 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-22 16:09:33,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-22 16:09:33,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-22 16:09:33,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-22 16:09:33,777 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-22 16:09:33,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-22 16:09:33,783 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-22 16:09:33,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-22 16:09:33,785 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-22 16:09:33,785 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-22 16:09:33,785 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-22 16:09:33,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-22 16:09:33,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-22 16:09:33,794 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-22 16:09:33,843 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-22 16:09:33,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-22 16:09:33,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-22 16:09:33,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-22 16:09:33,847 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-22 16:09:33,848 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-22 16:09:33,848 INFO L138 SettingsManager]: * Use SBE=true [2021-11-22 16:09:33,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-22 16:09:33,849 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-22 16:09:33,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-22 16:09:33,850 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-22 16:09:33,851 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-22 16:09:33,851 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-22 16:09:33,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-22 16:09:33,852 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-22 16:09:33,852 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-22 16:09:33,852 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-22 16:09:33,853 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-22 16:09:33,853 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-22 16:09:33,853 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-22 16:09:33,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-22 16:09:33,854 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-22 16:09:33,854 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-22 16:09:33,855 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-22 16:09:33,855 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:09:33,855 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-22 16:09:33,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-22 16:09:33,856 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-22 16:09:33,856 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-22 16:09:33,857 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-22 16:09:33,857 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-22 16:09:33,857 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-22 16:09:33,858 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-22 16:09:33,858 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-22 16:09:33,858 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-22 16:09:33,859 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_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2353b893872e012206111abb166a426e9f40d30394d7ebef586e8dc818388f82 [2021-11-22 16:09:34,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-22 16:09:34,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-22 16:09:34,276 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-22 16:09:34,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-22 16:09:34,278 INFO L275 PluginConnector]: CDTParser initialized [2021-11-22 16:09:34,280 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/../../sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2021-11-22 16:09:34,354 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data/774cc6970/c99dcb75aec14a8aaee2c1e09f760587/FLAGa76a91deb [2021-11-22 16:09:34,969 INFO L306 CDTParser]: Found 1 translation units. [2021-11-22 16:09:34,970 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c [2021-11-22 16:09:34,984 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data/774cc6970/c99dcb75aec14a8aaee2c1e09f760587/FLAGa76a91deb [2021-11-22 16:09:35,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/data/774cc6970/c99dcb75aec14a8aaee2c1e09f760587 [2021-11-22 16:09:35,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-22 16:09:35,336 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-22 16:09:35,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-22 16:09:35,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-22 16:09:35,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-22 16:09:35,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cd1728e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35, skipping insertion in model container [2021-11-22 16:09:35,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-22 16:09:35,404 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-22 16:09:35,571 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2021-11-22 16:09:35,585 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2021-11-22 16:09:35,630 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:09:35,644 INFO L203 MainTranslator]: Completed pre-run [2021-11-22 16:09:35,663 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[1996,2009] [2021-11-22 16:09:35,665 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/sv-benchmarks/c/combinations/square_1+soft_float_5a.c.cil.c[2365,2378] [2021-11-22 16:09:35,697 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-22 16:09:35,715 INFO L208 MainTranslator]: Completed translation [2021-11-22 16:09:35,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35 WrapperNode [2021-11-22 16:09:35,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-22 16:09:35,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-22 16:09:35,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-22 16:09:35,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-22 16:09:35,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,774 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 13, calls inlined = 11, statements flattened = 295 [2021-11-22 16:09:35,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-22 16:09:35,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-22 16:09:35,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-22 16:09:35,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-22 16:09:35,784 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,790 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,801 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,822 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-22 16:09:35,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-22 16:09:35,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-22 16:09:35,837 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-22 16:09:35,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (1/1) ... [2021-11-22 16:09:35,863 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-22 16:09:35,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/z3 [2021-11-22 16:09:35,891 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-22 16:09:35,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-22 16:09:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-22 16:09:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-22 16:09:35,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-22 16:09:35,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-22 16:09:36,055 INFO L236 CfgBuilder]: Building ICFG [2021-11-22 16:09:36,057 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-22 16:09:38,995 INFO L277 CfgBuilder]: Performing block encoding [2021-11-22 16:09:39,004 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-22 16:09:39,005 INFO L301 CfgBuilder]: Removed 8 assume(true) statements. [2021-11-22 16:09:39,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:09:39 BoogieIcfgContainer [2021-11-22 16:09:39,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-22 16:09:39,010 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-22 16:09:39,010 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-22 16:09:39,014 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-22 16:09:39,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 04:09:35" (1/3) ... [2021-11-22 16:09:39,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc9c742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:09:39, skipping insertion in model container [2021-11-22 16:09:39,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 04:09:35" (2/3) ... [2021-11-22 16:09:39,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5dc9c742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 04:09:39, skipping insertion in model container [2021-11-22 16:09:39,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:09:39" (3/3) ... [2021-11-22 16:09:39,018 INFO L111 eAbstractionObserver]: Analyzing ICFG square_1+soft_float_5a.c.cil.c [2021-11-22 16:09:39,024 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-22 16:09:39,025 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-22 16:09:39,081 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-22 16:09:39,090 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-22 16:09:39,091 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-22 16:09:39,109 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 79 states have (on average 1.7341772151898733) internal successors, (137), 81 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:09:39,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 16:09:39,116 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:09:39,116 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:09:39,117 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:09:39,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:09:39,124 INFO L85 PathProgramCache]: Analyzing trace with hash 1804936583, now seen corresponding path program 1 times [2021-11-22 16:09:39,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:09:39,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063780596] [2021-11-22 16:09:39,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:09:39,148 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:09:39,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:09:39,154 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:09:39,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-22 16:09:39,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-22 16:09:39,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-22 16:09:39,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-22 16:09:39,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:09:39,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-22 16:09:39,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-22 16:09:39,853 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-22 16:09:39,853 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063780596] [2021-11-22 16:09:39,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063780596] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-22 16:09:39,855 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-22 16:09:39,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-22 16:09:39,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643891763] [2021-11-22 16:09:39,860 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-22 16:09:39,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-22 16:09:39,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-22 16:09:39,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-22 16:09:39,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:09:39,933 INFO L87 Difference]: Start difference. First operand has 82 states, 79 states have (on average 1.7341772151898733) internal successors, (137), 81 states have internal predecessors, (137), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:09:39,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-22 16:09:39,996 INFO L93 Difference]: Finished difference Result 152 states and 250 transitions. [2021-11-22 16:09:39,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-22 16:09:39,999 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2021-11-22 16:09:40,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-22 16:09:40,013 INFO L225 Difference]: With dead ends: 152 [2021-11-22 16:09:40,014 INFO L226 Difference]: Without dead ends: 74 [2021-11-22 16:09:40,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-22 16:09:40,024 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-22 16:09:40,026 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-22 16:09:40,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-11-22 16:09:40,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-11-22 16:09:40,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 72 states have (on average 1.5) internal successors, (108), 73 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:09:40,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2021-11-22 16:09:40,089 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 7 [2021-11-22 16:09:40,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-22 16:09:40,090 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2021-11-22 16:09:40,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-22 16:09:40,091 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2021-11-22 16:09:40,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-11-22 16:09:40,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-22 16:09:40,092 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-22 16:09:40,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-22 16:09:40,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:09:40,296 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-22 16:09:40,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-22 16:09:40,297 INFO L85 PathProgramCache]: Analyzing trace with hash 1804996165, now seen corresponding path program 1 times [2021-11-22 16:09:40,298 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-22 16:09:40,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [750218442] [2021-11-22 16:09:40,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-22 16:09:40,299 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-22 16:09:40,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat [2021-11-22 16:09:40,309 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-22 16:09:40,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-22 16:10:51,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:10:51,622 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-22 16:11:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-22 16:11:05,184 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-22 16:11:05,185 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-22 16:11:05,186 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-11-22 16:11:05,188 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-11-22 16:11:05,225 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-22 16:11:05,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/mathsat -unsat_core_generation=3 [2021-11-22 16:11:05,392 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-22 16:11:05,396 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-22 16:11:05,433 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 04:11:05 BoogieIcfgContainer [2021-11-22 16:11:05,433 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-22 16:11:05,435 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-22 16:11:05,435 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-22 16:11:05,435 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-22 16:11:05,436 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 04:09:39" (3/4) ... [2021-11-22 16:11:05,438 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-22 16:11:05,494 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/witness.graphml [2021-11-22 16:11:05,497 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-22 16:11:05,499 INFO L158 Benchmark]: Toolchain (without parser) took 90162.58ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 37.7MB in the beginning and 35.2MB in the end (delta: 2.5MB). Peak memory consumption was 18.8MB. Max. memory is 16.1GB. [2021-11-22 16:11:05,501 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 60.8MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:11:05,502 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.99ms. Allocated memory is still 60.8MB. Free memory was 37.4MB in the beginning and 38.8MB in the end (delta: -1.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2021-11-22 16:11:05,504 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.44ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 36.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:11:05,504 INFO L158 Benchmark]: Boogie Preprocessor took 60.16ms. Allocated memory is still 60.8MB. Free memory was 36.4MB in the beginning and 34.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-22 16:11:05,505 INFO L158 Benchmark]: RCFGBuilder took 3171.85ms. Allocated memory is still 60.8MB. Free memory was 34.3MB in the beginning and 31.8MB in the end (delta: 2.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. [2021-11-22 16:11:05,510 INFO L158 Benchmark]: TraceAbstraction took 86423.33ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 31.5MB in the beginning and 36.9MB in the end (delta: -5.4MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2021-11-22 16:11:05,511 INFO L158 Benchmark]: Witness Printer took 63.65ms. Allocated memory is still 75.5MB. Free memory was 36.9MB in the beginning and 35.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-22 16:11:05,513 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 60.8MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.99ms. Allocated memory is still 60.8MB. Free memory was 37.4MB in the beginning and 38.8MB in the end (delta: -1.5MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.44ms. Allocated memory is still 60.8MB. Free memory was 38.6MB in the beginning and 36.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.16ms. Allocated memory is still 60.8MB. Free memory was 36.4MB in the beginning and 34.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3171.85ms. Allocated memory is still 60.8MB. Free memory was 34.3MB in the beginning and 31.8MB in the end (delta: 2.4MB). Peak memory consumption was 10.9MB. Max. memory is 16.1GB. * TraceAbstraction took 86423.33ms. Allocated memory was 60.8MB in the beginning and 75.5MB in the end (delta: 14.7MB). Free memory was 31.5MB in the beginning and 36.9MB in the end (delta: -5.4MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Witness Printer took 63.65ms. Allocated memory is still 75.5MB. Free memory was 36.9MB in the beginning and 35.2MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.984276533126831, result=1.3939731121063232, x=0.984276533126831] [L47] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0.984276533126831, result=1.3939731121063232, x=0.984276533126831] [L48] reach_error() VAL [IN=0.984276533126831, result=1.3939731121063232, x=0.984276533126831] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 86.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 118 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 118 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=82occurred 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, 71.8s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-22 16:11:05,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2bd18c61-c2bc-4dde-8c4b-7f3d12fc2528/bin/uautomizer-w2VwFs6gM0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE