./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa --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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:15:32,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:15:32,812 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:15:32,842 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:15:32,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:15:32,844 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:15:32,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:15:32,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:15:32,850 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:15:32,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:15:32,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:15:32,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:15:32,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:15:32,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:15:32,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:15:32,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:15:32,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:15:32,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:15:32,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:15:32,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:15:32,866 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:15:32,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:15:32,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:15:32,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:15:32,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:15:32,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:15:32,872 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:15:32,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:15:32,873 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:15:32,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:15:32,874 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:15:32,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:15:32,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:15:32,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:15:32,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:15:32,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:15:32,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:15:32,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:15:32,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:15:32,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:15:32,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:15:32,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-06 17:15:32,895 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:15:32,895 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:15:32,895 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:15:32,895 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:15:32,896 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:15:32,896 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:15:32,896 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:15:32,896 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:15:32,897 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:15:32,897 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:15:32,897 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:15:32,897 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-06 17:15:32,897 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:15:32,897 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:15:32,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:15:32,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:15:32,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:15:32,897 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:15:32,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:15:32,898 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:15:32,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:15:32,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:15:32,898 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:15:32,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:15:32,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:32,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:15:32,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:15:32,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:15:32,899 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-06 17:15:32,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-06 17:15:32,899 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:15:32,899 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:15:32,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:15:32,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:15:32,899 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2021-12-06 17:15:33,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:15:33,098 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:15:33,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:15:33,100 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:15:33,101 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:15:33,102 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2021-12-06 17:15:33,141 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data/a3cf94635/f8b9138bb692414cb2d6f2a376ceb32d/FLAG042a27db9 [2021-12-06 17:15:33,512 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:15:33,513 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2021-12-06 17:15:33,521 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data/a3cf94635/f8b9138bb692414cb2d6f2a376ceb32d/FLAG042a27db9 [2021-12-06 17:15:33,530 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data/a3cf94635/f8b9138bb692414cb2d6f2a376ceb32d [2021-12-06 17:15:33,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:15:33,533 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:15:33,534 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:33,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:15:33,537 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:15:33,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,538 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cc3f3c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33, skipping insertion in model container [2021-12-06 17:15:33,538 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,543 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:15:33,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:15:33,687 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2021-12-06 17:15:33,691 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2021-12-06 17:15:33,714 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:33,720 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:15:33,730 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2021-12-06 17:15:33,731 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2021-12-06 17:15:33,749 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:33,759 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:15:33,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33 WrapperNode [2021-12-06 17:15:33,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:33,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:33,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:15:33,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:15:33,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,789 INFO L137 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2021-12-06 17:15:33,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:33,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:15:33,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:15:33,790 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:15:33,797 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,799 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,807 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,809 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,811 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:15:33,812 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:15:33,812 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:15:33,812 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:15:33,813 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (1/1) ... [2021-12-06 17:15:33,821 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:33,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:33,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:15:33,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:15:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:15:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-06 17:15:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-06 17:15:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-06 17:15:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:15:33,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:15:33,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 17:15:33,879 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 17:15:33,934 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:15:33,935 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:15:34,103 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:15:34,109 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:15:34,109 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 17:15:34,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:34 BoogieIcfgContainer [2021-12-06 17:15:34,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:15:34,112 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:15:34,112 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:15:34,114 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:15:34,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:15:33" (1/3) ... [2021-12-06 17:15:34,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d559a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:34, skipping insertion in model container [2021-12-06 17:15:34,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:33" (2/3) ... [2021-12-06 17:15:34,116 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29d559a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:34, skipping insertion in model container [2021-12-06 17:15:34,116 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:34" (3/3) ... [2021-12-06 17:15:34,117 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2021-12-06 17:15:34,120 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:15:34,122 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 17:15:34,158 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:15:34,163 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 [2021-12-06 17:15:34,163 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 17:15:34,177 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-06 17:15:34,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 17:15:34,180 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:34,181 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:34,181 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:34,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:34,185 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2021-12-06 17:15:34,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:34,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498824561] [2021-12-06 17:15:34,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:34,193 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:34,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:34,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:34,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-06 17:15:34,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498824561] [2021-12-06 17:15:34,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498824561] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:34,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:34,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:15:34,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801192782] [2021-12-06 17:15:34,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:34,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:15:34,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-06 17:15:34,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:15:34,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:15:34,323 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2021-12-06 17:15:34,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:34,352 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2021-12-06 17:15:34,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:15:34,354 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 [2021-12-06 17:15:34,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:34,360 INFO L225 Difference]: With dead ends: 117 [2021-12-06 17:15:34,360 INFO L226 Difference]: Without dead ends: 52 [2021-12-06 17:15:34,363 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 [2021-12-06 17:15:34,366 INFO L933 BasicCegarLoop]: 82 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, 82 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 [2021-12-06 17:15:34,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:34,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-06 17:15:34,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-06 17:15:34,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 17:15:34,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2021-12-06 17:15:34,397 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2021-12-06 17:15:34,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:34,397 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-12-06 17:15:34,397 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) [2021-12-06 17:15:34,398 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2021-12-06 17:15:34,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 17:15:34,398 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:34,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:34,398 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-06 17:15:34,398 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:34,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:34,399 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2021-12-06 17:15:34,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-06 17:15:34,399 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701833074] [2021-12-06 17:15:34,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:34,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-06 17:15:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:15:34,414 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:15:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:15:34,433 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-06 17:15:34,433 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 17:15:34,435 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-06 17:15:34,436 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-06 17:15:34,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-06 17:15:34,439 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 17:15:34,441 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:15:34,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:15:34 BoogieIcfgContainer [2021-12-06 17:15:34,455 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:15:34,456 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:15:34,456 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:15:34,456 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:15:34,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:34" (3/4) ... [2021-12-06 17:15:34,459 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-06 17:15:34,459 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:15:34,459 INFO L158 Benchmark]: Toolchain (without parser) took 926.17ms. Allocated memory is still 96.5MB. Free memory was 55.6MB in the beginning and 60.6MB in the end (delta: -5.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:15:34,460 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory was 72.0MB in the beginning and 71.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:15:34,460 INFO L158 Benchmark]: CACSL2BoogieTranslator took 225.26ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 69.5MB in the end (delta: -14.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-12-06 17:15:34,461 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.62ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:15:34,461 INFO L158 Benchmark]: Boogie Preprocessor took 21.50ms. Allocated memory is still 96.5MB. Free memory was 67.4MB in the beginning and 66.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:15:34,462 INFO L158 Benchmark]: RCFGBuilder took 298.56ms. Allocated memory is still 96.5MB. Free memory was 66.0MB in the beginning and 52.5MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 17:15:34,462 INFO L158 Benchmark]: TraceAbstraction took 343.16ms. Allocated memory is still 96.5MB. Free memory was 52.1MB in the beginning and 61.1MB in the end (delta: -9.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:15:34,462 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 96.5MB. Free memory was 61.1MB in the beginning and 60.6MB in the end (delta: 530.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:15:34,465 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 96.5MB. Free memory was 72.0MB in the beginning and 71.9MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 225.26ms. Allocated memory is still 96.5MB. Free memory was 55.4MB in the beginning and 69.5MB in the end (delta: -14.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.62ms. Allocated memory is still 96.5MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.50ms. Allocated memory is still 96.5MB. Free memory was 67.4MB in the beginning and 66.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.56ms. Allocated memory is still 96.5MB. Free memory was 66.0MB in the beginning and 52.5MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 343.16ms. Allocated memory is still 96.5MB. Free memory was 52.1MB in the beginning and 61.1MB in the end (delta: -9.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 96.5MB. Free memory was 61.1MB in the beginning and 60.6MB in the end (delta: 530.4kB). 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 < 1.39843f) 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 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 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, 82 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=61occurred 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, 0.0s 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 [2021-12-06 17:15:34,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa --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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- Real Ultimate output --- This is Ultimate 0.2.2-hotfix-svcomp22-839c364 [2021-12-06 17:15:36,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-06 17:15:36,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-06 17:15:36,081 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-06 17:15:36,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-06 17:15:36,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-06 17:15:36,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-06 17:15:36,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-06 17:15:36,089 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-06 17:15:36,090 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-06 17:15:36,091 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-06 17:15:36,092 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-06 17:15:36,093 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-06 17:15:36,094 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-06 17:15:36,096 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-06 17:15:36,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-06 17:15:36,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-06 17:15:36,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-06 17:15:36,101 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-06 17:15:36,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-06 17:15:36,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-06 17:15:36,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-06 17:15:36,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-06 17:15:36,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-06 17:15:36,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-06 17:15:36,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-06 17:15:36,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-06 17:15:36,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-06 17:15:36,115 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-06 17:15:36,116 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-06 17:15:36,117 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-06 17:15:36,117 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-06 17:15:36,118 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-06 17:15:36,119 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-06 17:15:36,120 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-06 17:15:36,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-06 17:15:36,126 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-06 17:15:36,126 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-06 17:15:36,126 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-06 17:15:36,127 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-06 17:15:36,128 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-06 17:15:36,128 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-06 17:15:36,150 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-06 17:15:36,151 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-06 17:15:36,151 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-06 17:15:36,151 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-06 17:15:36,152 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-06 17:15:36,152 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-06 17:15:36,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-06 17:15:36,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-06 17:15:36,153 INFO L138 SettingsManager]: * Use SBE=true [2021-12-06 17:15:36,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-06 17:15:36,154 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-06 17:15:36,154 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-06 17:15:36,154 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-06 17:15:36,154 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-06 17:15:36,154 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-06 17:15:36,155 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-06 17:15:36,155 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-06 17:15:36,155 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-06 17:15:36,155 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-06 17:15:36,155 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-06 17:15:36,156 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-06 17:15:36,156 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-06 17:15:36,156 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-06 17:15:36,156 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-06 17:15:36,157 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-06 17:15:36,157 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-06 17:15:36,157 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:36,157 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-06 17:15:36,157 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-06 17:15:36,158 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-06 17:15:36,158 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-06 17:15:36,158 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-06 17:15:36,158 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-06 17:15:36,158 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-06 17:15:36,158 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-06 17:15:36,159 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-06 17:15:36,159 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-06 17:15:36,159 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2021-12-06 17:15:36,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-06 17:15:36,415 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-06 17:15:36,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-06 17:15:36,418 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-06 17:15:36,418 INFO L275 PluginConnector]: CDTParser initialized [2021-12-06 17:15:36,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2021-12-06 17:15:36,458 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data/059480c82/b5193f20261e444f9a5cfa010064c419/FLAG07be0c91a [2021-12-06 17:15:36,856 INFO L306 CDTParser]: Found 1 translation units. [2021-12-06 17:15:36,857 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2021-12-06 17:15:36,864 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data/059480c82/b5193f20261e444f9a5cfa010064c419/FLAG07be0c91a [2021-12-06 17:15:36,875 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/data/059480c82/b5193f20261e444f9a5cfa010064c419 [2021-12-06 17:15:36,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-06 17:15:36,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-06 17:15:36,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:36,880 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-06 17:15:36,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-06 17:15:36,883 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:36" (1/1) ... [2021-12-06 17:15:36,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316e9cba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:36, skipping insertion in model container [2021-12-06 17:15:36,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 05:15:36" (1/1) ... [2021-12-06 17:15:36,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-06 17:15:36,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-06 17:15:37,042 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2021-12-06 17:15:37,047 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2021-12-06 17:15:37,082 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:37,101 INFO L203 MainTranslator]: Completed pre-run [2021-12-06 17:15:37,120 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2021-12-06 17:15:37,121 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_a8c56cbf-988e-4cc8-941b-927ef2e267bf/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2021-12-06 17:15:37,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-06 17:15:37,153 INFO L208 MainTranslator]: Completed translation [2021-12-06 17:15:37,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37 WrapperNode [2021-12-06 17:15:37,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-06 17:15:37,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:37,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-06 17:15:37,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-06 17:15:37,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,188 INFO L137 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2021-12-06 17:15:37,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-06 17:15:37,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-06 17:15:37,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-06 17:15:37,189 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-06 17:15:37,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,199 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,199 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,206 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,214 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-06 17:15:37,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-06 17:15:37,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-06 17:15:37,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-06 17:15:37,216 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (1/1) ... [2021-12-06 17:15:37,221 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-06 17:15:37,229 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/z3 [2021-12-06 17:15:37,239 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-06 17:15:37,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-06 17:15:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-06 17:15:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-06 17:15:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-06 17:15:37,268 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-06 17:15:37,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-06 17:15:37,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-06 17:15:37,269 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-06 17:15:37,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-06 17:15:37,325 INFO L236 CfgBuilder]: Building ICFG [2021-12-06 17:15:37,327 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-06 17:15:39,673 INFO L277 CfgBuilder]: Performing block encoding [2021-12-06 17:15:39,680 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-06 17:15:39,680 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-06 17:15:39,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:39 BoogieIcfgContainer [2021-12-06 17:15:39,685 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-06 17:15:39,686 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-06 17:15:39,686 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-06 17:15:39,688 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-06 17:15:39,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.12 05:15:36" (1/3) ... [2021-12-06 17:15:39,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2acc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:39, skipping insertion in model container [2021-12-06 17:15:39,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 05:15:37" (2/3) ... [2021-12-06 17:15:39,689 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2acc68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.12 05:15:39, skipping insertion in model container [2021-12-06 17:15:39,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:39" (3/3) ... [2021-12-06 17:15:39,691 INFO L111 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2021-12-06 17:15:39,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-06 17:15:39,695 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-12-06 17:15:39,728 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-06 17:15:39,733 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 [2021-12-06 17:15:39,734 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-12-06 17:15:39,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-06 17:15:39,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 17:15:39,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:39,749 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:39,749 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:39,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:39,753 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2021-12-06 17:15:39,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:15:39,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [613488910] [2021-12-06 17:15:39,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:39,762 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:15:39,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:15:39,763 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:15:39,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-06 17:15:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-06 17:15:40,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-06 17:15:40,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-06 17:15:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-06 17:15:40,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-06 17:15:40,272 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-06 17:15:40,272 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [613488910] [2021-12-06 17:15:40,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [613488910] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-06 17:15:40,273 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-06 17:15:40,273 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-06 17:15:40,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474777603] [2021-12-06 17:15:40,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-06 17:15:40,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-06 17:15:40,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-06 17:15:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-06 17:15:40,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:15:40,299 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) 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) [2021-12-06 17:15:40,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-06 17:15:40,318 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2021-12-06 17:15:40,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-06 17:15:40,319 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 [2021-12-06 17:15:40,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-06 17:15:40,325 INFO L225 Difference]: With dead ends: 117 [2021-12-06 17:15:40,325 INFO L226 Difference]: Without dead ends: 52 [2021-12-06 17:15:40,327 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-06 17:15:40,330 INFO L933 BasicCegarLoop]: 82 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, 82 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 [2021-12-06 17:15:40,331 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-06 17:15:40,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-12-06 17:15:40,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-12-06 17:15:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-06 17:15:40,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2021-12-06 17:15:40,359 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2021-12-06 17:15:40,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-06 17:15:40,360 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2021-12-06 17:15:40,360 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) [2021-12-06 17:15:40,360 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2021-12-06 17:15:40,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-06 17:15:40,360 INFO L506 BasicCegarLoop]: Found error trace [2021-12-06 17:15:40,361 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-06 17:15:40,376 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-06 17:15:40,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:15:40,563 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-06 17:15:40,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-06 17:15:40,566 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2021-12-06 17:15:40,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-06 17:15:40,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [823004936] [2021-12-06 17:15:40,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-06 17:15:40,569 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-06 17:15:40,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat [2021-12-06 17:15:40,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-06 17:15:40,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-06 17:17:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:17:09,053 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-06 17:22:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-06 17:22:19,660 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-06 17:22:19,660 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-06 17:22:19,661 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2021-12-06 17:22:19,662 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2021-12-06 17:22:19,688 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-12-06 17:22:19,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/mathsat -unsat_core_generation=3 [2021-12-06 17:22:19,873 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-06 17:22:19,881 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-06 17:22:19,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.12 05:22:19 BoogieIcfgContainer [2021-12-06 17:22:19,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-06 17:22:19,916 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-06 17:22:19,916 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-06 17:22:19,916 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-06 17:22:19,916 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 05:15:39" (3/4) ... [2021-12-06 17:22:19,918 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-06 17:22:19,942 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/witness.graphml [2021-12-06 17:22:19,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-06 17:22:19,943 INFO L158 Benchmark]: Toolchain (without parser) took 403064.37ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 37.1MB in the beginning and 54.3MB in the end (delta: -17.2MB). Peak memory consumption was 2.3MB. Max. memory is 16.1GB. [2021-12-06 17:22:19,943 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 58.7MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-06 17:22:19,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.18ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.8MB in the beginning and 58.5MB in the end (delta: -21.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-06 17:22:19,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.02ms. Allocated memory is still 77.6MB. Free memory was 58.5MB in the beginning and 56.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:22:19,944 INFO L158 Benchmark]: Boogie Preprocessor took 25.86ms. Allocated memory is still 77.6MB. Free memory was 56.5MB in the beginning and 54.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:22:19,944 INFO L158 Benchmark]: RCFGBuilder took 2469.69ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 60.1MB in the end (delta: -5.4MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2021-12-06 17:22:19,945 INFO L158 Benchmark]: TraceAbstraction took 400229.19ms. Allocated memory is still 77.6MB. Free memory was 59.8MB in the beginning and 56.4MB in the end (delta: 3.4MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. [2021-12-06 17:22:19,945 INFO L158 Benchmark]: Witness Printer took 26.27ms. Allocated memory is still 77.6MB. Free memory was 56.0MB in the beginning and 54.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-06 17:22:19,947 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 58.7MB. Free memory is still 39.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.18ms. Allocated memory was 58.7MB in the beginning and 77.6MB in the end (delta: 18.9MB). Free memory was 36.8MB in the beginning and 58.5MB in the end (delta: -21.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.02ms. Allocated memory is still 77.6MB. Free memory was 58.5MB in the beginning and 56.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.86ms. Allocated memory is still 77.6MB. Free memory was 56.5MB in the beginning and 54.6MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2469.69ms. Allocated memory is still 77.6MB. Free memory was 54.6MB in the beginning and 60.1MB in the end (delta: -5.4MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * TraceAbstraction took 400229.19ms. Allocated memory is still 77.6MB. Free memory was 59.8MB in the beginning and 56.4MB in the end (delta: 3.4MB). Peak memory consumption was 26.3MB. Max. memory is 16.1GB. * Witness Printer took 26.27ms. Allocated memory is still 77.6MB. Free memory was 56.0MB in the beginning and 54.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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=0.9999993443489075, result=1.398437261581421, x=0.9999993443489075] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999993443489075, result=1.398437261581421, x=0.9999993443489075] [L48] reach_error() VAL [IN=0.9999993443489075, result=1.398437261581421, x=0.9999993443489075] - 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 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 400.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 82 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, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 88.9s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2021-12-06 17:22:20,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8c56cbf-988e-4cc8-941b-927ef2e267bf/bin/uautomizer-DrprNOufMa/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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