./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a --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 6fce76024adc68e21e1cc196dab3e80b460687e3a9e05290958802f4f588d42d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:50:08,551 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:50:08,554 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:50:08,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:50:08,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:50:08,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:50:08,604 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:50:08,608 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:50:08,610 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:50:08,612 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:50:08,614 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:50:08,618 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:50:08,618 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:50:08,623 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:50:08,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:50:08,625 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:50:08,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:50:08,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:50:08,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:50:08,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:50:08,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:50:08,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:50:08,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:50:08,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:50:08,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:50:08,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:50:08,654 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:50:08,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:50:08,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:50:08,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:50:08,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:50:08,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:50:08,657 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:50:08,658 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:50:08,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:50:08,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:50:08,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:50:08,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:50:08,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:50:08,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:50:08,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:50:08,668 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-21 16:50:08,707 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:50:08,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:50:08,708 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:50:08,708 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:50:08,709 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:50:08,709 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:50:08,710 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:50:08,710 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:50:08,710 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:50:08,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:50:08,712 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:50:08,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:50:08,712 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:50:08,713 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:50:08,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:50:08,713 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:50:08,713 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:50:08,713 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:50:08,714 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:50:08,714 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:50:08,714 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:50:08,714 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:50:08,714 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:50:08,715 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:50:08,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:50:08,715 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:50:08,715 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:50:08,715 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:50:08,716 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:50:08,716 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:50:08,716 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:50:08,716 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:50:08,717 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:50:08,717 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_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fce76024adc68e21e1cc196dab3e80b460687e3a9e05290958802f4f588d42d [2022-11-21 16:50:09,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:50:09,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:50:09,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:50:09,059 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:50:09,060 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:50:09,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2022-11-21 16:50:12,184 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:50:12,436 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:50:12,437 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2022-11-21 16:50:12,443 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/data/ad25c685f/5d98630130d5435e882c6e1cefd1e277/FLAG18ac50a9f [2022-11-21 16:50:12,457 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/data/ad25c685f/5d98630130d5435e882c6e1cefd1e277 [2022-11-21 16:50:12,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:50:12,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:50:12,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:50:12,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:50:12,466 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:50:12,467 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,468 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cb02e26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12, skipping insertion in model container [2022-11-21 16:50:12,468 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,476 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:50:12,490 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:50:12,653 WARN L237 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_7ab11521-d7dd-4f30-a734-915e270d4b1b/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c[1751,1764] [2022-11-21 16:50:12,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:50:12,667 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:50:12,687 WARN L237 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_7ab11521-d7dd-4f30-a734-915e270d4b1b/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c[1751,1764] [2022-11-21 16:50:12,688 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:50:12,702 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:50:12,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12 WrapperNode [2022-11-21 16:50:12,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:50:12,704 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:50:12,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:50:12,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:50:12,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,720 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,751 INFO L138 Inliner]: procedures = 16, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-11-21 16:50:12,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:50:12,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:50:12,753 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:50:12,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:50:12,763 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,780 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,802 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,803 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,805 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:50:12,806 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:50:12,806 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:50:12,806 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:50:12,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (1/1) ... [2022-11-21 16:50:12,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:50:12,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:50:12,853 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:50:12,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:50:12,896 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:50:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:50:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:50:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-21 16:50:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:50:12,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-21 16:50:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:50:12,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:50:12,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-21 16:50:12,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:50:13,020 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:50:13,028 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:50:13,269 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:50:13,275 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:50:13,275 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-21 16:50:13,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:50:13 BoogieIcfgContainer [2022-11-21 16:50:13,277 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:50:13,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:50:13,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:50:13,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:50:13,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:50:12" (1/3) ... [2022-11-21 16:50:13,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea40579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:50:13, skipping insertion in model container [2022-11-21 16:50:13,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:12" (2/3) ... [2022-11-21 16:50:13,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ea40579 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:50:13, skipping insertion in model container [2022-11-21 16:50:13,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:50:13" (3/3) ... [2022-11-21 16:50:13,287 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2022-11-21 16:50:13,306 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:50:13,306 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:50:13,356 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:50:13,363 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3cd92494, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:50:13,363 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:50:13,367 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:50:13,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:50:13,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:50:13,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:50:13,375 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:50:13,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:50:13,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2022-11-21 16:50:13,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:50:13,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478900974] [2022-11-21 16:50:13,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:50:13,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:50:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:13,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:50:13,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:50:13,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478900974] [2022-11-21 16:50:13,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478900974] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:50:13,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:50:13,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:50:13,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198949781] [2022-11-21 16:50:13,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:50:13,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:50:13,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:50:13,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:50:13,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:50:13,680 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-21 16:50:13,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:50:13,702 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2022-11-21 16:50:13,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:50:13,704 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-11-21 16:50:13,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:50:13,713 INFO L225 Difference]: With dead ends: 58 [2022-11-21 16:50:13,713 INFO L226 Difference]: Without dead ends: 27 [2022-11-21 16:50:13,716 INFO L412 NwaCegarLoop]: 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 [2022-11-21 16:50:13,722 INFO L413 NwaCegarLoop]: 39 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, 39 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 [2022-11-21 16:50:13,723 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:50:13,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-21 16:50:13,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-21 16:50:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:50:13,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-11-21 16:50:13,765 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2022-11-21 16:50:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:50:13,766 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-11-21 16:50:13,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-21 16:50:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-21 16:50:13,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:50:13,768 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:50:13,768 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:50:13,769 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:50:13,769 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:50:13,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:50:13,772 INFO L85 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2022-11-21 16:50:13,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:50:13,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482194835] [2022-11-21 16:50:13,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:50:13,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:50:13,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:50:13,876 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:50:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:50:13,953 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:50:13,954 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:50:13,956 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 16:50:13,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:50:13,961 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-21 16:50:13,964 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:50:13,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:50:13 BoogieIcfgContainer [2022-11-21 16:50:13,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:50:14,001 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:50:14,001 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:50:14,001 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:50:14,002 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:50:13" (3/4) ... [2022-11-21 16:50:14,005 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:50:14,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:50:14,006 INFO L158 Benchmark]: Toolchain (without parser) took 1544.85ms. Allocated memory is still 178.3MB. Free memory was 146.1MB in the beginning and 89.5MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-11-21 16:50:14,006 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:50:14,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 240.66ms. Allocated memory is still 178.3MB. Free memory was 146.1MB in the beginning and 135.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-21 16:50:14,011 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.67ms. Allocated memory is still 178.3MB. Free memory was 135.0MB in the beginning and 133.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:50:14,012 INFO L158 Benchmark]: Boogie Preprocessor took 52.75ms. Allocated memory is still 178.3MB. Free memory was 133.3MB in the beginning and 131.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:50:14,014 INFO L158 Benchmark]: RCFGBuilder took 471.36ms. Allocated memory is still 178.3MB. Free memory was 131.5MB in the beginning and 118.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-21 16:50:14,015 INFO L158 Benchmark]: TraceAbstraction took 719.72ms. Allocated memory is still 178.3MB. Free memory was 117.5MB in the beginning and 90.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-21 16:50:14,015 INFO L158 Benchmark]: Witness Printer took 4.64ms. Allocated memory is still 178.3MB. Free memory was 90.3MB in the beginning and 89.5MB in the end (delta: 744.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:50:14,022 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 136.3MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 240.66ms. Allocated memory is still 178.3MB. Free memory was 146.1MB in the beginning and 135.0MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.67ms. Allocated memory is still 178.3MB. Free memory was 135.0MB in the beginning and 133.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.75ms. Allocated memory is still 178.3MB. Free memory was 133.3MB in the beginning and 131.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 471.36ms. Allocated memory is still 178.3MB. Free memory was 131.5MB in the beginning and 118.2MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 719.72ms. Allocated memory is still 178.3MB. Free memory was 117.5MB in the beginning and 90.3MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.64ms. Allocated memory is still 178.3MB. Free memory was 90.3MB in the beginning and 89.5MB in the end (delta: 744.6kB). 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 - UnprovableResult [Line: 83]: 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 82, overapproximation of bitwiseAnd at line 23. Possible FailurePath: [L13] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L78] float x = 0.0f; [L79] CALL, EXPR ceil_float(x) [L16] __int32_t i0, j0; [L17] __uint32_t i, ix; VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000, x=0] [L19] ieee_float_shape_type gf_u; [L20] gf_u.value = (x) [L21] EXPR gf_u.word [L21] (i0) = gf_u.word [L23] ix = (i0 & 0x7fffffff) [L24] j0 = (ix >> 23) - 0x7f VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000, i=-18014398509481984, i0=6, j0=2147483521, x=0] [L25] COND FALSE !(j0 < 23) VAL [\old(x)=0, huge_ceil=1000000000000000000000000000000, i=-18014398509481984, i0=6, j0=2147483521, x=0] [L45] COND FALSE !(!((ix) < 0x7f800000L)) [L48] return x; VAL [\old(x)=0, \result=0, huge_ceil=1000000000000000000000000000000, i=-18014398509481984, i0=6, j0=2147483521, x=0] [L79] RET, EXPR ceil_float(x) [L79] float res = ceil_float(x); [L82] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_ceil=1000000000000000000000000000000, res=0, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L82] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L83] reach_error() VAL [huge_ceil=1000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 39 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, 39 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=30occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2022-11-21 16:50:14,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/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/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a --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 6fce76024adc68e21e1cc196dab3e80b460687e3a9e05290958802f4f588d42d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 16:50:16,536 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:50:16,539 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:50:16,574 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:50:16,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:50:16,578 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:50:16,581 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:50:16,586 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:50:16,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:50:16,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:50:16,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:50:16,595 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:50:16,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:50:16,598 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:50:16,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:50:16,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:50:16,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:50:16,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:50:16,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:50:16,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:50:16,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:50:16,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:50:16,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:50:16,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:50:16,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:50:16,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:50:16,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:50:16,620 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:50:16,620 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:50:16,621 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:50:16,621 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:50:16,622 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:50:16,623 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:50:16,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:50:16,639 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:50:16,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:50:16,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:50:16,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:50:16,640 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:50:16,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:50:16,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:50:16,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-21 16:50:16,681 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:50:16,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:50:16,682 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:50:16,683 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:50:16,683 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:50:16,684 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:50:16,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:50:16,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:50:16,685 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:50:16,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:50:16,686 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:50:16,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:50:16,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:50:16,687 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 16:50:16,687 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:50:16,687 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 16:50:16,687 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:50:16,687 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:50:16,688 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:50:16,688 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:50:16,688 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 16:50:16,688 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:50:16,688 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 16:50:16,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:50:16,689 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:50:16,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:50:16,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:50:16,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:50:16,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:50:16,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 16:50:16,690 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:50:16,690 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:50:16,691 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 16:50:16,691 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 16:50:16,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 16:50:16,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:50:16,692 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_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6fce76024adc68e21e1cc196dab3e80b460687e3a9e05290958802f4f588d42d [2022-11-21 16:50:17,065 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:50:17,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:50:17,092 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:50:17,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:50:17,096 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:50:17,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2022-11-21 16:50:20,163 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:50:20,339 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:50:20,340 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c [2022-11-21 16:50:20,346 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/data/ee70f5414/6a52fcc132714716ba71a766376495c5/FLAG70221e64d [2022-11-21 16:50:20,358 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/data/ee70f5414/6a52fcc132714716ba71a766376495c5 [2022-11-21 16:50:20,361 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:50:20,362 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:50:20,363 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:50:20,363 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:50:20,369 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:50:20,370 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,370 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343992cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20, skipping insertion in model container [2022-11-21 16:50:20,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:50:20,391 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:50:20,562 WARN L237 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_7ab11521-d7dd-4f30-a734-915e270d4b1b/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c[1751,1764] [2022-11-21 16:50:20,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:50:20,582 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:50:20,606 WARN L237 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_7ab11521-d7dd-4f30-a734-915e270d4b1b/sv-benchmarks/c/float-newlib/float_req_bl_1092b.c[1751,1764] [2022-11-21 16:50:20,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:50:20,622 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:50:20,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20 WrapperNode [2022-11-21 16:50:20,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:50:20,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:50:20,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:50:20,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:50:20,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,664 INFO L138 Inliner]: procedures = 19, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-11-21 16:50:20,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:50:20,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:50:20,665 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:50:20,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:50:20,673 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,697 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,698 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,701 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:50:20,702 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:50:20,702 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:50:20,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:50:20,703 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (1/1) ... [2022-11-21 16:50:20,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:50:20,731 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:50:20,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:50:20,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:50:20,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:50:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:50:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:50:20,786 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-21 16:50:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-21 16:50:20,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:50:20,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:50:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-21 16:50:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 16:50:20,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:50:20,868 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:50:20,870 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:50:21,455 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:50:21,461 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:50:21,461 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-21 16:50:21,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:50:21 BoogieIcfgContainer [2022-11-21 16:50:21,463 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:50:21,466 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:50:21,466 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:50:21,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:50:21,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:50:20" (1/3) ... [2022-11-21 16:50:21,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6124192f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:50:21, skipping insertion in model container [2022-11-21 16:50:21,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:50:20" (2/3) ... [2022-11-21 16:50:21,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6124192f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:50:21, skipping insertion in model container [2022-11-21 16:50:21,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:50:21" (3/3) ... [2022-11-21 16:50:21,474 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1092b.c [2022-11-21 16:50:21,494 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:50:21,495 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 16:50:21,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:50:21,553 INFO L357 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6507fe69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:50:21,553 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 16:50:21,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:50:21,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:50:21,587 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:50:21,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:50:21,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:50:21,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:50:21,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2022248449, now seen corresponding path program 1 times [2022-11-21 16:50:21,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:50:21,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [968880347] [2022-11-21 16:50:21,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:50:21,612 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:50:21,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:50:21,623 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:50:21,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-21 16:50:21,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:21,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 16:50:21,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:50:21,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:50:21,804 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:50:21,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:50:21,805 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [968880347] [2022-11-21 16:50:21,806 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [968880347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:50:21,806 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:50:21,807 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:50:21,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270925637] [2022-11-21 16:50:21,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:50:21,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:50:21,815 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:50:21,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:50:21,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:50:21,873 INFO L87 Difference]: Start difference. First operand has 30 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 29 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-21 16:50:21,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:50:21,901 INFO L93 Difference]: Finished difference Result 58 states and 90 transitions. [2022-11-21 16:50:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:50:21,903 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-11-21 16:50:21,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:50:21,911 INFO L225 Difference]: With dead ends: 58 [2022-11-21 16:50:21,912 INFO L226 Difference]: Without dead ends: 27 [2022-11-21 16:50:21,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:50:21,921 INFO L413 NwaCegarLoop]: 39 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, 39 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 [2022-11-21 16:50:21,922 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-21 16:50:21,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-21 16:50:21,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-21 16:50:21,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:50:21,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-11-21 16:50:21,966 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 10 [2022-11-21 16:50:21,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:50:21,966 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-11-21 16:50:21,967 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-21 16:50:21,967 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-11-21 16:50:21,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:50:21,968 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:50:21,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:50:21,987 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-21 16:50:22,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:50:22,188 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:50:22,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:50:22,189 INFO L85 PathProgramCache]: Analyzing trace with hash -62588350, now seen corresponding path program 1 times [2022-11-21 16:50:22,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:50:22,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1186983137] [2022-11-21 16:50:22,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:50:22,193 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:50:22,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:50:22,194 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:50:22,230 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-21 16:50:22,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:50:22,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-21 16:50:22,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:50:22,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:50:22,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:50:22,487 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:50:22,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1186983137] [2022-11-21 16:50:22,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1186983137] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:50:22,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:50:22,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:50:22,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914100911] [2022-11-21 16:50:22,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:50:22,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:50:22,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:50:22,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:50:22,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:50:22,491 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:50:22,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:50:22,708 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-11-21 16:50:22,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:50:22,709 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-21 16:50:22,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:50:22,710 INFO L225 Difference]: With dead ends: 51 [2022-11-21 16:50:22,710 INFO L226 Difference]: Without dead ends: 34 [2022-11-21 16:50:22,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-21 16:50:22,712 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 71 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:50:22,713 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 40 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:50:22,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-11-21 16:50:22,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2022-11-21 16:50:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:50:22,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2022-11-21 16:50:22,721 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 11 [2022-11-21 16:50:22,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:50:22,722 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2022-11-21 16:50:22,722 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:50:22,722 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2022-11-21 16:50:22,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:50:22,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:50:22,723 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:50:22,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-21 16:50:22,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:50:22,943 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 16:50:22,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:50:22,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1612307429, now seen corresponding path program 1 times [2022-11-21 16:50:22,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:50:22,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1168127019] [2022-11-21 16:50:22,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:50:22,945 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-21 16:50:22,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:50:22,946 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-21 16:50:22,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-21 16:50:23,099 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 139 [2022-11-21 16:50:23,101 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-21 16:50:23,105 INFO L158 Benchmark]: Toolchain (without parser) took 2743.19ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 36.8MB in the beginning and 68.1MB in the end (delta: -31.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:50:23,106 INFO L158 Benchmark]: CDTParser took 0.89ms. Allocated memory is still 65.0MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:50:23,106 INFO L158 Benchmark]: CACSL2BoogieTranslator took 260.37ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 36.7MB in the beginning and 70.1MB in the end (delta: -33.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-11-21 16:50:23,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.45ms. Allocated memory is still 92.3MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:50:23,107 INFO L158 Benchmark]: Boogie Preprocessor took 36.20ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 66.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:50:23,108 INFO L158 Benchmark]: RCFGBuilder took 761.04ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 53.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 16:50:23,108 INFO L158 Benchmark]: TraceAbstraction took 1638.79ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 68.1MB in the end (delta: -15.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:50:23,111 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89ms. Allocated memory is still 65.0MB. Free memory is still 43.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 260.37ms. Allocated memory was 65.0MB in the beginning and 92.3MB in the end (delta: 27.3MB). Free memory was 36.7MB in the beginning and 70.1MB in the end (delta: -33.5MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.45ms. Allocated memory is still 92.3MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.20ms. Allocated memory is still 92.3MB. Free memory was 68.4MB in the beginning and 66.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 761.04ms. Allocated memory is still 92.3MB. Free memory was 66.7MB in the beginning and 53.0MB in the end (delta: 13.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1638.79ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 68.1MB in the end (delta: -15.7MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-21 16:50:23,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ab11521-d7dd-4f30-a734-915e270d4b1b/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4) with exit command (exit)) Received EOF on stdin. No stderr output.