./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI --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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- 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-5e519f3 [2022-11-03 03:48:48,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:48:48,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:48:48,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:48:48,410 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:48:48,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:48:48,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:48:48,420 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:48:48,423 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:48:48,431 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:48:48,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:48:48,435 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:48:48,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:48:48,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:48:48,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:48:48,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:48:48,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:48:48,445 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:48:48,447 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:48:48,456 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:48:48,458 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:48:48,459 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:48:48,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:48:48,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:48:48,473 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:48:48,474 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:48:48,474 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:48:48,476 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:48:48,476 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:48:48,477 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:48:48,478 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:48:48,479 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:48:48,481 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:48:48,482 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:48:48,485 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:48:48,485 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:48:48,486 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:48:48,486 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:48:48,486 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:48:48,487 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:48:48,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:48:48,489 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:48:48,530 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:48:48,530 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:48:48,531 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:48:48,531 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:48:48,532 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:48:48,533 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:48:48,533 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:48:48,533 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:48:48,533 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:48:48,534 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:48:48,535 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:48:48,535 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:48:48,535 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:48:48,536 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:48:48,536 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:48:48,536 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:48:48,536 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:48:48,537 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:48:48,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:48:48,538 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:48:48,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:48:48,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:48:48,538 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:48:48,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:48:48,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:48:48,539 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:48:48,539 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:48:48,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:48:48,540 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:48:48,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:48:48,540 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:48:48,541 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:48:48,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:48:48,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:48:48,542 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:48:48,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:48:48,542 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:48:48,542 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:48:48,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:48:48,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:48:48,543 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:48:48,543 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_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-11-03 03:48:48,814 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:48:48,837 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:48:48,840 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:48:48,841 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:48:48,842 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:48:48,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-11-03 03:48:48,931 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data/e0efae23d/e306cd04fad3458f8ced7b23445cfb9e/FLAG0c9b53aa7 [2022-11-03 03:48:49,536 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:48:49,537 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-11-03 03:48:49,550 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data/e0efae23d/e306cd04fad3458f8ced7b23445cfb9e/FLAG0c9b53aa7 [2022-11-03 03:48:49,886 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data/e0efae23d/e306cd04fad3458f8ced7b23445cfb9e [2022-11-03 03:48:49,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:48:49,892 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:48:49,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:48:49,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:48:49,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:48:49,898 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:48:49" (1/1) ... [2022-11-03 03:48:49,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e35372a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:49, skipping insertion in model container [2022-11-03 03:48:49,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:48:49" (1/1) ... [2022-11-03 03:48:49,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:48:49,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:48:50,214 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-11-03 03:48:50,221 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-11-03 03:48:50,289 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:48:50,302 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:48:50,330 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-11-03 03:48:50,333 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-11-03 03:48:50,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:48:50,381 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:48:50,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50 WrapperNode [2022-11-03 03:48:50,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:48:50,383 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:48:50,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:48:50,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:48:50,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,463 INFO L138 Inliner]: procedures = 27, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 133 [2022-11-03 03:48:50,465 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:48:50,466 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:48:50,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:48:50,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:48:50,478 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,478 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,491 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,500 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,505 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,506 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,508 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,526 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:48:50,527 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:48:50,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:48:50,528 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:48:50,529 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (1/1) ... [2022-11-03 03:48:50,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:48:50,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:50,564 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:48:50,581 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:48:50,613 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:48:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-03 03:48:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-03 03:48:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:48:50,614 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:48:50,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:48:50,615 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 03:48:50,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 03:48:50,728 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:48:50,731 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:48:51,191 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:48:51,339 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:48:51,339 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:48:51,342 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:51 BoogieIcfgContainer [2022-11-03 03:48:51,342 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:48:51,345 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:48:51,345 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:48:51,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:48:51,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:48:49" (1/3) ... [2022-11-03 03:48:51,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7825ef69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:51, skipping insertion in model container [2022-11-03 03:48:51,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:50" (2/3) ... [2022-11-03 03:48:51,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7825ef69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:51, skipping insertion in model container [2022-11-03 03:48:51,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:51" (3/3) ... [2022-11-03 03:48:51,368 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-11-03 03:48:51,393 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:48:51,394 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 03:48:51,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:48:51,463 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;@695ae37c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:48:51,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 03:48:51,469 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) [2022-11-03 03:48:51,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-03 03:48:51,477 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:51,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-03 03:48:51,479 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:51,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:51,486 INFO L85 PathProgramCache]: Analyzing trace with hash 7146571, now seen corresponding path program 1 times [2022-11-03 03:48:51,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:48:51,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590908332] [2022-11-03 03:48:51,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:51,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:48:51,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:48:51,626 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 03:48:51,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 03:48:51,672 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-03 03:48:51,675 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 03:48:51,677 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-03 03:48:51,680 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-03 03:48:51,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:48:51,687 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-03 03:48:51,691 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:48:51,714 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:48:51 BoogieIcfgContainer [2022-11-03 03:48:51,715 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:48:51,718 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:48:51,718 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:48:51,719 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:48:51,719 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:51" (3/4) ... [2022-11-03 03:48:51,724 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-03 03:48:51,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:48:51,727 INFO L158 Benchmark]: Toolchain (without parser) took 1833.36ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 69.6MB in the beginning and 100.9MB in the end (delta: -31.3MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-03 03:48:51,728 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory was 76.1MB in the beginning and 76.1MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:48:51,729 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.84ms. Allocated memory is still 104.9MB. Free memory was 69.5MB in the beginning and 75.5MB in the end (delta: -6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 03:48:51,729 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.88ms. Allocated memory is still 104.9MB. Free memory was 75.5MB in the beginning and 73.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:48:51,735 INFO L158 Benchmark]: Boogie Preprocessor took 60.22ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 71.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:48:51,737 INFO L158 Benchmark]: RCFGBuilder took 815.28ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 71.8MB in the beginning and 115.6MB in the end (delta: -43.8MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2022-11-03 03:48:51,737 INFO L158 Benchmark]: TraceAbstraction took 370.63ms. Allocated memory is still 140.5MB. Free memory was 114.9MB in the beginning and 100.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-03 03:48:51,738 INFO L158 Benchmark]: Witness Printer took 6.69ms. Allocated memory is still 140.5MB. Free memory was 100.9MB in the beginning and 100.9MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:48:51,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory was 76.1MB in the beginning and 76.1MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.84ms. Allocated memory is still 104.9MB. Free memory was 69.5MB in the beginning and 75.5MB in the end (delta: -6.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.88ms. Allocated memory is still 104.9MB. Free memory was 75.5MB in the beginning and 73.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 60.22ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 71.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 815.28ms. Allocated memory was 104.9MB in the beginning and 140.5MB in the end (delta: 35.7MB). Free memory was 71.8MB in the beginning and 115.6MB in the end (delta: -43.8MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. * TraceAbstraction took 370.63ms. Allocated memory is still 140.5MB. Free memory was 114.9MB in the beginning and 100.9MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 6.69ms. Allocated memory is still 140.5MB. Free memory was 100.9MB in the beginning and 100.9MB in the end (delta: 2.7kB). 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 < 1.39843f) 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 [2022-11-03 03:48:51,781 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/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_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI --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 d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b --- 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-5e519f3 [2022-11-03 03:48:54,182 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:48:54,184 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:48:54,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:48:54,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:48:54,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:48:54,234 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:48:54,238 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:48:54,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:48:54,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:48:54,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:48:54,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:48:54,255 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:48:54,257 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:48:54,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:48:54,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:48:54,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:48:54,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:48:54,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:48:54,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:48:54,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:48:54,276 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:48:54,277 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:48:54,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:48:54,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:48:54,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:48:54,291 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:48:54,292 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:48:54,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:48:54,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:48:54,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:48:54,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:48:54,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:48:54,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:48:54,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:48:54,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:48:54,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:48:54,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:48:54,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:48:54,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:48:54,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:48:54,307 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-03 03:48:54,361 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:48:54,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:48:54,361 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:48:54,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:48:54,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:48:54,363 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:48:54,363 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:48:54,363 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:48:54,363 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:48:54,364 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:48:54,365 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:48:54,365 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:48:54,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:48:54,367 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:48:54,367 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:48:54,367 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:48:54,367 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:48:54,367 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:48:54,368 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:48:54,368 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-03 03:48:54,368 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-03 03:48:54,368 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-03 03:48:54,368 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:48:54,368 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:48:54,369 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:48:54,369 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:48:54,369 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:48:54,369 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-03 03:48:54,369 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:48:54,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:48:54,370 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:48:54,370 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:48:54,370 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:48:54,371 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-03 03:48:54,371 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-03 03:48:54,371 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:48:54,372 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:48:54,372 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-03 03:48:54,372 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_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d7de1912562331bdeed36a798c63b43e65b83b24670be96e9199704df5bd448b [2022-11-03 03:48:54,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:48:54,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:48:54,824 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:48:54,825 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:48:54,826 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:48:54,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-11-03 03:48:54,896 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data/b83373f39/e27c6c8b8af7449db56077eb2b155283/FLAGe7adcc99e [2022-11-03 03:48:55,504 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:48:55,504 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c [2022-11-03 03:48:55,518 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data/b83373f39/e27c6c8b8af7449db56077eb2b155283/FLAGe7adcc99e [2022-11-03 03:48:55,834 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/data/b83373f39/e27c6c8b8af7449db56077eb2b155283 [2022-11-03 03:48:55,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:48:55,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:48:55,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:48:55,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:48:55,845 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:48:55,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:48:55" (1/1) ... [2022-11-03 03:48:55,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@407926ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:55, skipping insertion in model container [2022-11-03 03:48:55,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:48:55" (1/1) ... [2022-11-03 03:48:55,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:48:55,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:48:56,063 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-11-03 03:48:56,068 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-11-03 03:48:56,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:48:56,168 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:48:56,183 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[1999,2012] [2022-11-03 03:48:56,184 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/sv-benchmarks/c/combinations/square_3+soft_float_2a.c.cil.c[2368,2381] [2022-11-03 03:48:56,210 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:48:56,228 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:48:56,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56 WrapperNode [2022-11-03 03:48:56,229 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:48:56,230 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:48:56,230 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:48:56,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:48:56,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,288 INFO L138 Inliner]: procedures = 28, calls = 17, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 129 [2022-11-03 03:48:56,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:48:56,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:48:56,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:48:56,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:48:56,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,311 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,320 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,324 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,326 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:48:56,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:48:56,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:48:56,333 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:48:56,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (1/1) ... [2022-11-03 03:48:56,343 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:48:56,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:48:56,376 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:48:56,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:48:56,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:48:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-03 03:48:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-03 03:48:56,422 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-03 03:48:56,422 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:48:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:48:56,423 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-03 03:48:56,423 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-03 03:48:56,549 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:48:56,552 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:48:59,189 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:48:59,200 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:48:59,200 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:48:59,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:59 BoogieIcfgContainer [2022-11-03 03:48:59,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:48:59,216 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:48:59,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:48:59,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:48:59,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:48:55" (1/3) ... [2022-11-03 03:48:59,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53659b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:59, skipping insertion in model container [2022-11-03 03:48:59,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:48:56" (2/3) ... [2022-11-03 03:48:59,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53659b12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:48:59, skipping insertion in model container [2022-11-03 03:48:59,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:59" (3/3) ... [2022-11-03 03:48:59,224 INFO L112 eAbstractionObserver]: Analyzing ICFG square_3+soft_float_2a.c.cil.c [2022-11-03 03:48:59,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:48:59,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-03 03:48:59,290 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:48:59,297 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;@1efd8786, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:48:59,297 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-03 03:48:59,302 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) [2022-11-03 03:48:59,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 03:48:59,310 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:48:59,310 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:48:59,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:48:59,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:48:59,317 INFO L85 PathProgramCache]: Analyzing trace with hash -548115930, now seen corresponding path program 1 times [2022-11-03 03:48:59,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:48:59,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [915590680] [2022-11-03 03:48:59,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:48:59,331 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:48:59,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:48:59,338 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:48:59,373 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-03 03:48:59,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:48:59,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-03 03:48:59,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:48:59,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:48:59,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:48:59,939 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-03 03:48:59,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [915590680] [2022-11-03 03:48:59,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [915590680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:48:59,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:48:59,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:48:59,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195532091] [2022-11-03 03:48:59,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:48:59,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:48:59,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-03 03:48:59,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:48:59,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:48:59,994 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) [2022-11-03 03:49:00,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:49:00,022 INFO L93 Difference]: Finished difference Result 117 states and 175 transitions. [2022-11-03 03:49:00,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:49:00,029 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 [2022-11-03 03:49:00,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:49:00,036 INFO L225 Difference]: With dead ends: 117 [2022-11-03 03:49:00,037 INFO L226 Difference]: Without dead ends: 52 [2022-11-03 03:49:00,043 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 [2022-11-03 03:49:00,048 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 [2022-11-03 03:49:00,050 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] [2022-11-03 03:49:00,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2022-11-03 03:49:00,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-11-03 03:49:00,100 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) [2022-11-03 03:49:00,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 71 transitions. [2022-11-03 03:49:00,110 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 71 transitions. Word has length 7 [2022-11-03 03:49:00,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:49:00,111 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 71 transitions. [2022-11-03 03:49:00,111 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) [2022-11-03 03:49:00,112 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 71 transitions. [2022-11-03 03:49:00,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-03 03:49:00,113 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:49:00,114 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:49:00,148 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:49:00,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 03:49:00,339 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:49:00,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:49:00,341 INFO L85 PathProgramCache]: Analyzing trace with hash -548056348, now seen corresponding path program 1 times [2022-11-03 03:49:00,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-03 03:49:00,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1330781468] [2022-11-03 03:49:00,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:49:00,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-11-03 03:49:00,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat [2022-11-03 03:49:00,343 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-03 03:49:00,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-03 04:00:04,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:00:04,079 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-03 04:00:54,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-03 04:00:55,060 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-03 04:00:55,061 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-03 04:00:55,063 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-11-03 04:00:55,065 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-11-03 04:00:55,162 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-03 04:00:55,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/mathsat -unsat_core_generation=3 [2022-11-03 04:00:55,286 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-03 04:00:55,302 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 04:00:55,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:00:55 BoogieIcfgContainer [2022-11-03 04:00:55,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 04:00:55,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 04:00:55,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 04:00:55,343 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 04:00:55,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:48:59" (3/4) ... [2022-11-03 04:00:55,346 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-03 04:00:55,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 04:00:55,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 04:00:55,404 INFO L158 Benchmark]: Toolchain (without parser) took 719564.49ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 51.3MB in the beginning and 65.9MB in the end (delta: -14.6MB). Peak memory consumption was 1.7MB. Max. memory is 16.1GB. [2022-11-03 04:00:55,404 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:00:55,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.79ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 50.4MB in the end (delta: 739.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 04:00:55,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.31ms. Allocated memory is still 71.3MB. Free memory was 50.4MB in the beginning and 48.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:00:55,411 INFO L158 Benchmark]: Boogie Preprocessor took 40.55ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 46.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 04:00:55,412 INFO L158 Benchmark]: RCFGBuilder took 2871.06ms. Allocated memory is still 71.3MB. Free memory was 46.6MB in the beginning and 29.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-03 04:00:55,412 INFO L158 Benchmark]: TraceAbstraction took 716124.75ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 52.1MB in the beginning and 67.5MB in the end (delta: -15.3MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-11-03 04:00:55,413 INFO L158 Benchmark]: Witness Printer took 60.72ms. Allocated memory is still 88.1MB. Free memory was 67.5MB in the beginning and 65.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 04:00:55,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 71.3MB. Free memory is still 51.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.79ms. Allocated memory is still 71.3MB. Free memory was 51.2MB in the beginning and 50.4MB in the end (delta: 739.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.31ms. Allocated memory is still 71.3MB. Free memory was 50.4MB in the beginning and 48.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.55ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 46.6MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2871.06ms. Allocated memory is still 71.3MB. Free memory was 46.6MB in the beginning and 29.8MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 716124.75ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 52.1MB in the beginning and 67.5MB in the end (delta: -15.3MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Witness Printer took 60.72ms. Allocated memory is still 88.1MB. Free memory was 67.5MB in the beginning and 65.9MB in the end (delta: 1.6MB). 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=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] [L47] COND TRUE !(result >= 0.0f && result < 1.39843f) VAL [IN=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] [L48] reach_error() VAL [IN=0.9999968409538269, result=1.3984366655349731, x=0.9999968409538269] - 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: 716.0s, 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, 664.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 22 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-03 04:00:55,524 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c84e7939-8123-4c83-bb97-a8122c822a60/bin/utaipan-7li7fVZpFI/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