./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f --- 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-38b53e6 [2022-11-26 00:03:00,502 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:03:00,505 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:03:00,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:03:00,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:03:00,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:03:00,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:03:00,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:03:00,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:03:00,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:03:00,561 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:03:00,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:03:00,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:03:00,566 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:03:00,568 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:03:00,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:03:00,572 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:03:00,573 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:03:00,575 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:03:00,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:03:00,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:03:00,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:03:00,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:03:00,582 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:03:00,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:03:00,597 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:03:00,598 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:03:00,600 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:03:00,600 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:03:00,601 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:03:00,602 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:03:00,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:03:00,604 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:03:00,605 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:03:00,606 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:03:00,607 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:03:00,607 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:03:00,608 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:03:00,608 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:03:00,609 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:03:00,610 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:03:00,611 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:03:00,648 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:03:00,649 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:03:00,649 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:03:00,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:03:00,650 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:03:00,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:03:00,651 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:03:00,651 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:03:00,652 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:03:00,652 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:03:00,653 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:03:00,653 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:03:00,653 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:03:00,653 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:03:00,654 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:03:00,654 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:03:00,654 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:03:00,654 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:03:00,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:03:00,655 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:03:00,655 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:03:00,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:03:00,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:03:00,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:03:00,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:03:00,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:03:00,657 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:03:00,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:03:00,658 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:03:00,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:03:00,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:03:00,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:03:00,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:00,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:03:00,659 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:03:00,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:03:00,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:03:00,660 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:03:00,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:03:00,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:03:00,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:03:00,660 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f [2022-11-26 00:03:00,927 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:03:00,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:03:00,955 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:03:00,957 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:03:00,957 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:03:00,958 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c [2022-11-26 00:03:03,871 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:03:04,139 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:03:04,140 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c [2022-11-26 00:03:04,147 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/data/d6d2f3718/81e9c20ebf7a4962970c52850c5a2908/FLAG9dbd56d24 [2022-11-26 00:03:04,161 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/data/d6d2f3718/81e9c20ebf7a4962970c52850c5a2908 [2022-11-26 00:03:04,164 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:03:04,165 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:03:04,167 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:04,167 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:03:04,177 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:03:04,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@265626b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04, skipping insertion in model container [2022-11-26 00:03:04,186 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:03:04,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:03:04,370 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010] [2022-11-26 00:03:04,376 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379] [2022-11-26 00:03:04,430 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:04,439 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:03:04,454 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010] [2022-11-26 00:03:04,456 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379] [2022-11-26 00:03:04,483 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:04,498 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:03:04,498 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04 WrapperNode [2022-11-26 00:03:04,498 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:04,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:04,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:03:04,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:03:04,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,544 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 187 [2022-11-26 00:03:04,545 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:04,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:03:04,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:03:04,546 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:03:04,555 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,558 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,567 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,592 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:03:04,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:03:04,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:03:04,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:03:04,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (1/1) ... [2022-11-26 00:03:04,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:04,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:04,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:03:04,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:03:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:03:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-26 00:03:04,693 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-26 00:03:04,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:03:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:03:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:03:04,694 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:03:04,694 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:03:04,779 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:03:04,781 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:03:05,262 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:03:05,640 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:03:05,640 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:03:05,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:05 BoogieIcfgContainer [2022-11-26 00:03:05,648 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:03:05,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:03:05,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:03:05,654 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:03:05,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:04" (1/3) ... [2022-11-26 00:03:05,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f60ec8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:05, skipping insertion in model container [2022-11-26 00:03:05,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:04" (2/3) ... [2022-11-26 00:03:05,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f60ec8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:05, skipping insertion in model container [2022-11-26 00:03:05,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:05" (3/3) ... [2022-11-26 00:03:05,657 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_5a.c.cil.c [2022-11-26 00:03:05,676 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:03:05,677 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:03:05,730 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:03:05,736 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=FINITE_AUTOMATA, 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;@5b361a4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:03:05,737 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:03:05,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 35 states have (on average 1.5714285714285714) internal successors, (55), 38 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-26 00:03:05,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:03:05,748 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:05,748 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:03:05,749 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:03:05,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:05,754 INFO L85 PathProgramCache]: Analyzing trace with hash 10105265, now seen corresponding path program 1 times [2022-11-26 00:03:05,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:03:05,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107352782] [2022-11-26 00:03:05,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:05,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:03:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:03:05,858 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:03:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:03:05,886 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:03:05,889 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:03:05,890 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-26 00:03:05,893 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-26 00:03:05,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:03:05,900 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:03:05,904 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:03:05,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:03:05 BoogieIcfgContainer [2022-11-26 00:03:05,931 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:03:05,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:03:05,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:03:05,934 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:03:05,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:05" (3/4) ... [2022-11-26 00:03:05,940 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:03:05,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:03:05,942 INFO L158 Benchmark]: Toolchain (without parser) took 1776.09ms. Allocated memory is still 182.5MB. Free memory was 149.8MB in the beginning and 126.8MB in the end (delta: 23.0MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2022-11-26 00:03:05,942 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:05,943 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.09ms. Allocated memory is still 182.5MB. Free memory was 149.8MB in the beginning and 135.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:03:05,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.28ms. Allocated memory is still 182.5MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:03:05,946 INFO L158 Benchmark]: Boogie Preprocessor took 58.68ms. Allocated memory is still 182.5MB. Free memory was 133.1MB in the beginning and 131.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:03:05,952 INFO L158 Benchmark]: RCFGBuilder took 1043.78ms. Allocated memory is still 182.5MB. Free memory was 131.6MB in the beginning and 141.5MB in the end (delta: -9.9MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2022-11-26 00:03:05,953 INFO L158 Benchmark]: TraceAbstraction took 280.83ms. Allocated memory is still 182.5MB. Free memory was 141.5MB in the beginning and 126.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:03:05,954 INFO L158 Benchmark]: Witness Printer took 6.47ms. Allocated memory is still 182.5MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:03:05,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 136.3MB. Free memory is still 77.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.09ms. Allocated memory is still 182.5MB. Free memory was 149.8MB in the beginning and 135.2MB in the end (delta: 14.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.28ms. Allocated memory is still 182.5MB. Free memory was 135.2MB in the beginning and 133.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.68ms. Allocated memory is still 182.5MB. Free memory was 133.1MB in the beginning and 131.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1043.78ms. Allocated memory is still 182.5MB. Free memory was 131.6MB in the beginning and 141.5MB in the end (delta: -9.9MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. * TraceAbstraction took 280.83ms. Allocated memory is still 182.5MB. Free memory was 141.5MB in the beginning and 126.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 6.47ms. Allocated memory is still 182.5MB. Free memory is still 126.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 48]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 47, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=53, x=53] [L48] reach_error() VAL [IN=53, x=53] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 45 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2022-11-26 00:03:05,992 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f --- 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-38b53e6 [2022-11-26 00:03:08,301 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:03:08,303 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:03:08,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:03:08,330 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:03:08,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:03:08,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:03:08,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:03:08,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:03:08,355 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:03:08,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:03:08,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:03:08,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:03:08,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:03:08,364 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:03:08,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:03:08,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:03:08,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:03:08,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:03:08,378 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:03:08,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:03:08,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:03:08,386 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:03:08,387 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:03:08,390 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:03:08,391 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:03:08,391 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:03:08,392 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:03:08,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:03:08,393 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:03:08,393 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:03:08,394 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:03:08,395 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:03:08,396 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:03:08,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:03:08,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:03:08,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:03:08,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:03:08,405 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:03:08,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:03:08,407 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:03:08,409 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-26 00:03:08,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:03:08,432 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:03:08,432 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:03:08,433 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:03:08,433 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:03:08,434 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:03:08,434 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:03:08,434 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:03:08,435 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:03:08,435 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:03:08,435 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:03:08,435 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:03:08,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:03:08,436 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:03:08,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:03:08,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:03:08,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:03:08,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:03:08,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:03:08,438 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:03:08,438 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:03:08,438 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:03:08,438 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:03:08,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:03:08,439 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:03:08,439 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:03:08,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:03:08,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:03:08,440 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:03:08,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:08,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:03:08,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:03:08,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:03:08,441 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:03:08,441 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:03:08,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:03:08,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:03:08,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:03:08,442 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c065a55f68f899d0f20fc5e1ef687a000c7e9a3454841ed8a67112aa421d143f [2022-11-26 00:03:08,786 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:03:08,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:03:08,812 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:03:08,813 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:03:08,813 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:03:08,815 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c [2022-11-26 00:03:11,857 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:03:12,133 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:03:12,144 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c [2022-11-26 00:03:12,154 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/data/2dc07987b/4cb9172bd9654407bf74a8b0e0d3255c/FLAGfaccae6f8 [2022-11-26 00:03:12,170 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/data/2dc07987b/4cb9172bd9654407bf74a8b0e0d3255c [2022-11-26 00:03:12,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:03:12,178 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:03:12,179 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:12,179 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:03:12,189 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:03:12,190 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,191 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45eb3bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12, skipping insertion in model container [2022-11-26 00:03:12,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:03:12,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:03:12,456 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010] [2022-11-26 00:03:12,464 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379] [2022-11-26 00:03:12,528 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:12,547 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:03:12,580 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[1997,2010] [2022-11-26 00:03:12,581 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_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/sv-benchmarks/c/combinations/square_2+soft_float_5a.c.cil.c[2366,2379] [2022-11-26 00:03:12,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:03:12,617 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:03:12,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12 WrapperNode [2022-11-26 00:03:12,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:03:12,619 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:12,619 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:03:12,619 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:03:12,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,638 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,674 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-26 00:03:12,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:03:12,676 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:03:12,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:03:12,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:03:12,685 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,686 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,716 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,724 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,728 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,745 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:03:12,746 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:03:12,746 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:03:12,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:03:12,747 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (1/1) ... [2022-11-26 00:03:12,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:03:12,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:03:12,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:03:12,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:03:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:03:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:03:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-26 00:03:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-26 00:03:12,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:03:12,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:03:12,850 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-26 00:03:12,850 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-26 00:03:12,932 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:03:12,934 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:03:15,496 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:03:15,503 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:03:15,503 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-26 00:03:15,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:15 BoogieIcfgContainer [2022-11-26 00:03:15,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:03:15,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:03:15,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:03:15,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:03:15,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:03:12" (1/3) ... [2022-11-26 00:03:15,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470d0ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:15, skipping insertion in model container [2022-11-26 00:03:15,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:03:12" (2/3) ... [2022-11-26 00:03:15,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470d0ebf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:03:15, skipping insertion in model container [2022-11-26 00:03:15,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:15" (3/3) ... [2022-11-26 00:03:15,518 INFO L112 eAbstractionObserver]: Analyzing ICFG square_2+soft_float_5a.c.cil.c [2022-11-26 00:03:15,539 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:03:15,539 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:03:15,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:03:15,601 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=FINITE_AUTOMATA, 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;@74d9c47c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:03:15,601 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:03:15,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-26 00:03:15,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:03:15,614 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:15,614 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:15,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:03:15,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:15,620 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-26 00:03:15,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:03:15,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1393155301] [2022-11-26 00:03:15,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:15,634 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 [2022-11-26 00:03:15,635 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:03:15,643 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:03:15,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:03:16,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:03:16,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:03:16,195 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:03:16,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:03:16,213 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:03:16,214 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:03:16,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1393155301] [2022-11-26 00:03:16,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1393155301] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:03:16,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:03:16,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:03:16,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652085770] [2022-11-26 00:03:16,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:03:16,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:03:16,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:03:16,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:03:16,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:03:16,253 INFO L87 Difference]: Start difference. First operand has 61 states, 51 states have (on average 1.5490196078431373) internal successors, (79), 54 states have internal predecessors, (79), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:16,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:03:16,282 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-11-26 00:03:16,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:03:16,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-26 00:03:16,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:03:16,291 INFO L225 Difference]: With dead ends: 117 [2022-11-26 00:03:16,292 INFO L226 Difference]: Without dead ends: 52 [2022-11-26 00:03:16,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:03:16,298 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:03:16,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:03:16,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-26 00:03:16,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-26 00:03:16,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 44 states have (on average 1.4090909090909092) internal successors, (62), 45 states have internal predecessors, (62), 5 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-26 00:03:16,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-11-26 00:03:16,342 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-11-26 00:03:16,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:03:16,342 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-11-26 00:03:16,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:03:16,343 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-11-26 00:03:16,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:03:16,343 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:03:16,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:03:16,363 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:03:16,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:03:16,556 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:03:16,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:03:16,556 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-26 00:03:16,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:03:16,557 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535688937] [2022-11-26 00:03:16,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:03:16,558 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 [2022-11-26 00:03:16,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:03:16,559 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:03:16,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:03:48,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:03:48,354 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:04:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:04:21,306 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:04:21,306 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:04:21,308 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-26 00:04:21,309 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-26 00:04:21,343 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:04:21,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:04:21,514 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:04:21,518 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:04:21,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:04:21 BoogieIcfgContainer [2022-11-26 00:04:21,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:04:21,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:04:21,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:04:21,539 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:04:21,540 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:03:15" (3/4) ... [2022-11-26 00:04:21,542 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:04:21,584 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:04:21,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:04:21,587 INFO L158 Benchmark]: Toolchain (without parser) took 69409.50ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 43.3MB in the end (delta: 3.0MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:21,589 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 69.2MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:04:21,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 439.38ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 46.0MB in the beginning and 65.6MB in the end (delta: -19.5MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2022-11-26 00:04:21,590 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.80ms. Allocated memory is still 88.1MB. Free memory was 65.6MB in the beginning and 63.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:21,594 INFO L158 Benchmark]: Boogie Preprocessor took 69.84ms. Allocated memory is still 88.1MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:21,595 INFO L158 Benchmark]: RCFGBuilder took 2759.70ms. Allocated memory is still 88.1MB. Free memory was 61.7MB in the beginning and 45.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:04:21,595 INFO L158 Benchmark]: TraceAbstraction took 66030.26ms. Allocated memory is still 88.1MB. Free memory was 44.6MB in the beginning and 45.0MB in the end (delta: -442.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:04:21,596 INFO L158 Benchmark]: Witness Printer took 47.91ms. Allocated memory is still 88.1MB. Free memory was 45.0MB in the beginning and 43.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:04:21,598 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 69.2MB. Free memory was 46.6MB in the beginning and 46.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 439.38ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 46.0MB in the beginning and 65.6MB in the end (delta: -19.5MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.80ms. Allocated memory is still 88.1MB. Free memory was 65.6MB in the beginning and 63.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.84ms. Allocated memory is still 88.1MB. Free memory was 63.8MB in the beginning and 61.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2759.70ms. Allocated memory is still 88.1MB. Free memory was 61.7MB in the beginning and 45.3MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 66030.26ms. Allocated memory is still 88.1MB. Free memory was 44.6MB in the beginning and 45.0MB in the end (delta: -442.4kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 47.91ms. Allocated memory is still 88.1MB. Free memory was 45.0MB in the beginning and 43.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 48]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L322] COND TRUE __VERIFIER_nondet_int() [L323] CALL main1() [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L34] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L42] float x = IN; [L44-L45] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9999997615814209, result=1.3984375, x=0.9999997615814209] [L47] COND TRUE !(result >= 0.0f && result < 1.398f) VAL [IN=0.9999997615814209, result=1.3984375, x=0.9999997615814209] [L48] reach_error() VAL [IN=0.9999997615814209, result=1.3984375, x=0.9999997615814209] - UnprovableResult [Line: 60]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 61 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 65.9s, 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, 82 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 82 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 32.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 00:04:21,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7eb0f8-626c-427e-ae24-a5e3e6aabf5b/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE