./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f 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_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0 --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 357cd7c68915d75ef7cc5bde5b81cbcf327e780f04b059068444ae319e85eb5a --- 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-e04fb08 [2022-11-16 15:53:05,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:53:05,257 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:53:05,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:53:05,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:53:05,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:53:05,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:53:05,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:53:05,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:53:05,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:53:05,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:53:05,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:53:05,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:53:05,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:53:05,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:53:05,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:53:05,331 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:53:05,332 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:53:05,334 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:53:05,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:53:05,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:53:05,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:53:05,354 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:53:05,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:53:05,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:53:05,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:53:05,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:53:05,367 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:53:05,367 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:53:05,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:53:05,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:53:05,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:53:05,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:53:05,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:53:05,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:53:05,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:53:05,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:53:05,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:53:05,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:53:05,378 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:53:05,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:53:05,380 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-16 15:53:05,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:53:05,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:53:05,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:53:05,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:53:05,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:53:05,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:53:05,440 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:53:05,440 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:53:05,440 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:53:05,440 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-16 15:53:05,442 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:53:05,442 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:53:05,443 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-16 15:53:05,443 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-16 15:53:05,443 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:53:05,443 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-16 15:53:05,444 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-16 15:53:05,444 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-16 15:53:05,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:53:05,445 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:53:05,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 15:53:05,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:53:05,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:53:05,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:53:05,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:53:05,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:53:05,448 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:53:05,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:53:05,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:53:05,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:53:05,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:53:05,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:53:05,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:53:05,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:53:05,451 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-16 15:53:05,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:53:05,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:53:05,452 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-16 15:53:05,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 15:53:05,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:53:05,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:53:05,453 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_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 357cd7c68915d75ef7cc5bde5b81cbcf327e780f04b059068444ae319e85eb5a [2022-11-16 15:53:05,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:53:05,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:53:05,769 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:53:05,770 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:53:05,771 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:53:05,773 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2022-11-16 15:53:05,855 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data/5ae6e14bb/d52a71c50b3b48f3bbc09a067f733a12/FLAG7ea4581c4 [2022-11-16 15:53:06,405 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:53:06,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2022-11-16 15:53:06,414 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data/5ae6e14bb/d52a71c50b3b48f3bbc09a067f733a12/FLAG7ea4581c4 [2022-11-16 15:53:06,730 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data/5ae6e14bb/d52a71c50b3b48f3bbc09a067f733a12 [2022-11-16 15:53:06,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:53:06,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:53:06,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:53:06,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:53:06,749 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:53:06,750 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:53:06" (1/1) ... [2022-11-16 15:53:06,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1950c3cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:06, skipping insertion in model container [2022-11-16 15:53:06,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:53:06" (1/1) ... [2022-11-16 15:53:06,764 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:53:06,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:53:07,008 WARN L229 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_ad775eaf-3565-45bb-9186-b869594ff870/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c[3718,3731] [2022-11-16 15:53:07,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:53:07,021 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:53:07,064 WARN L229 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_ad775eaf-3565-45bb-9186-b869594ff870/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c[3718,3731] [2022-11-16 15:53:07,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:53:07,079 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:53:07,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07 WrapperNode [2022-11-16 15:53:07,080 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:53:07,081 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:53:07,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:53:07,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:53:07,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,100 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,133 INFO L138 Inliner]: procedures = 20, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 243 [2022-11-16 15:53:07,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:53:07,134 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:53:07,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:53:07,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:53:07,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,163 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,169 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,171 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,173 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:53:07,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:53:07,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:53:07,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:53:07,179 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (1/1) ... [2022-11-16 15:53:07,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:53:07,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:07,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:53:07,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:53:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:53:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 15:53:07,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:53:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-16 15:53:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 15:53:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-16 15:53:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:53:07,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:53:07,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-16 15:53:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 15:53:07,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:53:07,459 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:53:07,462 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:53:08,012 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:53:08,059 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:53:08,060 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-16 15:53:08,063 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:08 BoogieIcfgContainer [2022-11-16 15:53:08,063 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:53:08,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:53:08,066 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:53:08,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:53:08,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:53:06" (1/3) ... [2022-11-16 15:53:08,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b01e547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:53:08, skipping insertion in model container [2022-11-16 15:53:08,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:07" (2/3) ... [2022-11-16 15:53:08,072 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b01e547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:53:08, skipping insertion in model container [2022-11-16 15:53:08,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:08" (3/3) ... [2022-11-16 15:53:08,074 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211b.c [2022-11-16 15:53:08,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:53:08,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:53:08,147 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:53:08,162 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;@342894e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:53:08,162 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 15:53:08,171 INFO L276 IsEmpty]: Start isEmpty. Operand has 48 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 47 states have internal predecessors, (79), 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) [2022-11-16 15:53:08,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-16 15:53:08,182 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:08,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:08,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:08,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:08,193 INFO L85 PathProgramCache]: Analyzing trace with hash 834473654, now seen corresponding path program 1 times [2022-11-16 15:53:08,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:08,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824202645] [2022-11-16 15:53:08,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:08,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:08,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:08,504 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:08,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824202645] [2022-11-16 15:53:08,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824202645] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:08,506 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:08,507 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 15:53:08,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [942408672] [2022-11-16 15:53:08,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:08,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 15:53:08,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:08,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 15:53:08,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 15:53:08,560 INFO L87 Difference]: Start difference. First operand has 48 states, 46 states have (on average 1.7173913043478262) internal successors, (79), 47 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-16 15:53:08,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:08,634 INFO L93 Difference]: Finished difference Result 95 states and 157 transitions. [2022-11-16 15:53:08,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 15:53:08,637 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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 13 [2022-11-16 15:53:08,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:08,650 INFO L225 Difference]: With dead ends: 95 [2022-11-16 15:53:08,650 INFO L226 Difference]: Without dead ends: 46 [2022-11-16 15:53:08,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 15:53:08,670 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:08,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:53:08,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-16 15:53:08,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-16 15:53:08,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1555555555555554) internal successors, (52), 45 states have internal predecessors, (52), 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) [2022-11-16 15:53:08,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 52 transitions. [2022-11-16 15:53:08,717 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 52 transitions. Word has length 13 [2022-11-16 15:53:08,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:08,717 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 52 transitions. [2022-11-16 15:53:08,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 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) [2022-11-16 15:53:08,719 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 52 transitions. [2022-11-16 15:53:08,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-16 15:53:08,721 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:08,721 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:08,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 15:53:08,722 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:08,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:08,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1702812403, now seen corresponding path program 1 times [2022-11-16 15:53:08,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:08,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761250635] [2022-11-16 15:53:08,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:08,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:08,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 15:53:09,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 15:53:09,111 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-16 15:53:09,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761250635] [2022-11-16 15:53:09,112 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761250635] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 15:53:09,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 15:53:09,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 15:53:09,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560362874] [2022-11-16 15:53:09,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 15:53:09,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 15:53:09,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-16 15:53:09,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 15:53:09,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:53:09,116 INFO L87 Difference]: Start difference. First operand 46 states and 52 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-11-16 15:53:09,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 15:53:09,153 INFO L93 Difference]: Finished difference Result 49 states and 54 transitions. [2022-11-16 15:53:09,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 15:53:09,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 16 [2022-11-16 15:53:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 15:53:09,156 INFO L225 Difference]: With dead ends: 49 [2022-11-16 15:53:09,156 INFO L226 Difference]: Without dead ends: 46 [2022-11-16 15:53:09,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 15:53:09,158 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 15:53:09,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 15:53:09,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-16 15:53:09,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-16 15:53:09,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1333333333333333) internal successors, (51), 45 states have internal predecessors, (51), 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) [2022-11-16 15:53:09,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 51 transitions. [2022-11-16 15:53:09,166 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 51 transitions. Word has length 16 [2022-11-16 15:53:09,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 15:53:09,167 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 51 transitions. [2022-11-16 15:53:09,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-11-16 15:53:09,167 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 51 transitions. [2022-11-16 15:53:09,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-16 15:53:09,168 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:09,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:09,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 15:53:09,169 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:09,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:09,170 INFO L85 PathProgramCache]: Analyzing trace with hash -2223683, now seen corresponding path program 1 times [2022-11-16 15:53:09,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-16 15:53:09,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950540791] [2022-11-16 15:53:09,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:09,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 15:53:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 15:53:09,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 15:53:09,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 15:53:09,725 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-16 15:53:09,726 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 15:53:09,727 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 15:53:09,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 15:53:09,737 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-16 15:53:09,742 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 15:53:09,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:53:09 BoogieIcfgContainer [2022-11-16 15:53:09,779 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 15:53:09,780 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 15:53:09,780 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 15:53:09,780 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 15:53:09,781 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:08" (3/4) ... [2022-11-16 15:53:09,784 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 15:53:09,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 15:53:09,785 INFO L158 Benchmark]: Toolchain (without parser) took 3051.50ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 66.5MB in the beginning and 86.7MB in the end (delta: -20.2MB). Peak memory consumption was 533.0kB. Max. memory is 16.1GB. [2022-11-16 15:53:09,786 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 75.6MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 15:53:09,786 INFO L158 Benchmark]: CACSL2BoogieTranslator took 340.35ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 73.8MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-16 15:53:09,787 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.26ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 71.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-16 15:53:09,788 INFO L158 Benchmark]: Boogie Preprocessor took 42.79ms. Allocated memory is still 100.7MB. Free memory was 71.1MB in the beginning and 68.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 15:53:09,788 INFO L158 Benchmark]: RCFGBuilder took 885.40ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 68.7MB in the beginning and 91.2MB in the end (delta: -22.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2022-11-16 15:53:09,789 INFO L158 Benchmark]: TraceAbstraction took 1713.48ms. Allocated memory is still 121.6MB. Free memory was 90.2MB in the beginning and 86.7MB in the end (delta: 3.4MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. [2022-11-16 15:53:09,789 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 121.6MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 15:53:09,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 100.7MB. Free memory was 75.7MB in the beginning and 75.6MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 340.35ms. Allocated memory is still 100.7MB. Free memory was 66.3MB in the beginning and 73.8MB in the end (delta: -7.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.26ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 71.1MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.79ms. Allocated memory is still 100.7MB. Free memory was 71.1MB in the beginning and 68.7MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 885.40ms. Allocated memory was 100.7MB in the beginning and 121.6MB in the end (delta: 21.0MB). Free memory was 68.7MB in the beginning and 91.2MB in the end (delta: -22.5MB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1713.48ms. Allocated memory is still 121.6MB. Free memory was 90.2MB in the beginning and 86.7MB in the end (delta: 3.4MB). Peak memory consumption was 42.4MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 121.6MB. Free memory is still 86.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 152]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 122, overapproximation of someBinaryArithmeticDOUBLEoperation at line 146, overapproximation of bitwiseAnd at line 121, overapproximation of someBinaryDOUBLEComparisonOperation at line 151. Possible FailurePath: [L20] static const double one_modf = 1.0; [L146] double x = -1.0 / 0.0; [L147] double iptr = __VERIFIER_nondet_double(); [L148] CALL, EXPR modf_double(x, &iptr) [L23] __int32_t i0, i1, j0; [L24] __uint32_t i; VAL [\old(x)=4294967316, iptr={6:0}, iptr={6:0}, one_modf=1, x=4294967316] [L26] ieee_double_shape_type ew_u; [L27] ew_u.value = (x) [L28] EXPR ew_u.parts.msw [L28] (i0) = ew_u.parts.msw [L29] EXPR ew_u.parts.lsw [L29] (i1) = ew_u.parts.lsw [L31] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=4294967316, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1024, one_modf=1, x=4294967316] [L32] COND TRUE j0 < 20 VAL [\old(x)=4294967316, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1024, one_modf=1, x=4294967316] [L33] COND TRUE j0 < 0 VAL [\old(x)=4294967316, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1024, one_modf=1, x=4294967316] [L35] ieee_double_shape_type iw_u; [L36] iw_u.parts.msw = (i0 & 0x80000000) [L37] iw_u.parts.lsw = (0) [L38] EXPR iw_u.value [L38] (*iptr) = iw_u.value [L40] return x; VAL [\old(x)=4294967316, \result=4294967316, i0=-1048576, i1=-2, iptr={6:0}, iptr={6:0}, j0=-1024, one_modf=1, x=4294967316] [L148] RET, EXPR modf_double(x, &iptr) [L148] double res = modf_double(x, &iptr); [L151] EXPR \read(iptr) [L151] CALL, EXPR isinf_double(iptr) [L114] __int32_t hx, lx; VAL [\old(x)=4294967315, one_modf=1, x=4294967315] [L116] ieee_double_shape_type ew_u; [L117] ew_u.value = (x) [L118] EXPR ew_u.parts.msw [L118] (hx) = ew_u.parts.msw [L119] EXPR ew_u.parts.lsw [L119] (lx) = ew_u.parts.lsw [L121] hx &= 0x7fffffff [L122] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L123] hx = 0x7ff00000 - hx [L124] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L151] RET, EXPR isinf_double(iptr) [L151] isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) [L151] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [\read(iptr)=4294967315, iptr={6:0}, isinf_double(iptr)=-2147483648, isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1)=1, one_modf=1, res=4294967316, res == -0.0 && __signbit_double(res) == 1=0, x=4294967316] [L151] isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) VAL [\read(iptr)=4294967315, iptr={6:0}, isinf_double(iptr)=-2147483648, isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1)=1, one_modf=1, res=4294967316, res == -0.0 && __signbit_double(res) == 1=0, x=4294967316] [L151] COND TRUE isinf_double(iptr) && !(res == -0.0 && __signbit_double(res) == 1) [L152] reach_error() VAL [iptr={6:0}, one_modf=1, res=4294967316, x=4294967316] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 48 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 144 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 45 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 99 mSDtfsCounter, 13 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 28 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 15:53:09,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0 --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 357cd7c68915d75ef7cc5bde5b81cbcf327e780f04b059068444ae319e85eb5a --- 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-e04fb08 [2022-11-16 15:53:12,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 15:53:12,151 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 15:53:12,176 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 15:53:12,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 15:53:12,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 15:53:12,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 15:53:12,190 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 15:53:12,192 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 15:53:12,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 15:53:12,198 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 15:53:12,200 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 15:53:12,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 15:53:12,201 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 15:53:12,203 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 15:53:12,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 15:53:12,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 15:53:12,206 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 15:53:12,208 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 15:53:12,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 15:53:12,215 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 15:53:12,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 15:53:12,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 15:53:12,218 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 15:53:12,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 15:53:12,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 15:53:12,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 15:53:12,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 15:53:12,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 15:53:12,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 15:53:12,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 15:53:12,226 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 15:53:12,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 15:53:12,227 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 15:53:12,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 15:53:12,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 15:53:12,230 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 15:53:12,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 15:53:12,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 15:53:12,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 15:53:12,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 15:53:12,237 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-16 15:53:12,271 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 15:53:12,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 15:53:12,272 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 15:53:12,272 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 15:53:12,273 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 15:53:12,273 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 15:53:12,273 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-16 15:53:12,274 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-16 15:53:12,274 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-16 15:53:12,274 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-16 15:53:12,274 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-16 15:53:12,274 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-16 15:53:12,279 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 15:53:12,279 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 15:53:12,280 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 15:53:12,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 15:53:12,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 15:53:12,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 15:53:12,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 15:53:12,281 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 15:53:12,281 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 15:53:12,281 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 15:53:12,281 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 15:53:12,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 15:53:12,282 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 15:53:12,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 15:53:12,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 15:53:12,283 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 15:53:12,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 15:53:12,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:53:12,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 15:53:12,284 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 15:53:12,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 15:53:12,285 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-16 15:53:12,285 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 15:53:12,285 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 15:53:12,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-16 15:53:12,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 15:53:12,287 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_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 357cd7c68915d75ef7cc5bde5b81cbcf327e780f04b059068444ae319e85eb5a [2022-11-16 15:53:12,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 15:53:12,679 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 15:53:12,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 15:53:12,684 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 15:53:12,685 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 15:53:12,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/../../sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2022-11-16 15:53:12,764 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data/6d405d7be/63099174f44a48198861768252842038/FLAG82a9451d9 [2022-11-16 15:53:13,349 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 15:53:13,350 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c [2022-11-16 15:53:13,360 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data/6d405d7be/63099174f44a48198861768252842038/FLAG82a9451d9 [2022-11-16 15:53:13,693 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/data/6d405d7be/63099174f44a48198861768252842038 [2022-11-16 15:53:13,697 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 15:53:13,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 15:53:13,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 15:53:13,705 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 15:53:13,709 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 15:53:13,711 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:53:13" (1/1) ... [2022-11-16 15:53:13,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@356bdce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:13, skipping insertion in model container [2022-11-16 15:53:13,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:53:13" (1/1) ... [2022-11-16 15:53:13,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 15:53:13,752 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 15:53:13,928 WARN L229 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_ad775eaf-3565-45bb-9186-b869594ff870/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c[3718,3731] [2022-11-16 15:53:13,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:53:13,989 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 15:53:14,036 WARN L229 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_ad775eaf-3565-45bb-9186-b869594ff870/sv-benchmarks/c/float-newlib/double_req_bl_1211b.c[3718,3731] [2022-11-16 15:53:14,037 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 15:53:14,056 INFO L208 MainTranslator]: Completed translation [2022-11-16 15:53:14,057 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14 WrapperNode [2022-11-16 15:53:14,057 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 15:53:14,058 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 15:53:14,058 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 15:53:14,058 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 15:53:14,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,132 INFO L138 Inliner]: procedures = 23, calls = 80, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 242 [2022-11-16 15:53:14,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 15:53:14,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 15:53:14,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 15:53:14,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 15:53:14,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,145 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,153 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,170 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,176 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,179 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,185 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 15:53:14,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 15:53:14,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 15:53:14,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 15:53:14,187 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (1/1) ... [2022-11-16 15:53:14,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 15:53:14,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/z3 [2022-11-16 15:53:14,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 15:53:14,231 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 15:53:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 15:53:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-16 15:53:14,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-16 15:53:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 15:53:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 15:53:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-16 15:53:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 15:53:14,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 15:53:14,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 15:53:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 15:53:14,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 15:53:14,409 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 15:53:14,412 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 15:53:15,323 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 15:53:15,329 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 15:53:15,329 INFO L300 CfgBuilder]: Removed 24 assume(true) statements. [2022-11-16 15:53:15,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:15 BoogieIcfgContainer [2022-11-16 15:53:15,340 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 15:53:15,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 15:53:15,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 15:53:15,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 15:53:15,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:53:13" (1/3) ... [2022-11-16 15:53:15,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7054f9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:53:15, skipping insertion in model container [2022-11-16 15:53:15,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:53:14" (2/3) ... [2022-11-16 15:53:15,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7054f9c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:53:15, skipping insertion in model container [2022-11-16 15:53:15,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 03:53:15" (3/3) ... [2022-11-16 15:53:15,351 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1211b.c [2022-11-16 15:53:15,371 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 15:53:15,372 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 15:53:15,433 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 15:53:15,440 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;@602a517c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 15:53:15,441 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 15:53:15,444 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 50 states have (on average 1.66) internal successors, (83), 51 states have internal predecessors, (83), 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) [2022-11-16 15:53:15,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-16 15:53:15,452 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 15:53:15,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 15:53:15,453 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 15:53:15,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 15:53:15,459 INFO L85 PathProgramCache]: Analyzing trace with hash -892017235, now seen corresponding path program 1 times [2022-11-16 15:53:15,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-16 15:53:15,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968769205] [2022-11-16 15:53:15,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 15:53:15,473 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 [2022-11-16 15:53:15,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/mathsat [2022-11-16 15:53:15,476 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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) [2022-11-16 15:53:15,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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 [2022-11-16 15:53:15,640 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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 139 [2022-11-16 15:53:15,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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 [2022-11-16 15:53:15,840 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-16 15:53:15,844 INFO L158 Benchmark]: Toolchain (without parser) took 2143.82ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 50.3MB in the beginning and 75.1MB in the end (delta: -24.8MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-11-16 15:53:15,845 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 50.1MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 15:53:15,846 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.84ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 49.5MB in the end (delta: 537.7kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-16 15:53:15,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.28ms. Allocated memory is still 69.2MB. Free memory was 49.5MB in the beginning and 47.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 15:53:15,847 INFO L158 Benchmark]: Boogie Preprocessor took 52.22ms. Allocated memory is still 69.2MB. Free memory was 47.0MB in the beginning and 44.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 15:53:15,847 INFO L158 Benchmark]: RCFGBuilder took 1154.85ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 39.9MB in the end (delta: 4.9MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. [2022-11-16 15:53:15,848 INFO L158 Benchmark]: TraceAbstraction took 499.88ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 39.3MB in the beginning and 75.1MB in the end (delta: -35.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 15:53:15,850 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 69.2MB. Free memory was 50.2MB in the beginning and 50.1MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.84ms. Allocated memory is still 69.2MB. Free memory was 50.1MB in the beginning and 49.5MB in the end (delta: 537.7kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.28ms. Allocated memory is still 69.2MB. Free memory was 49.5MB in the beginning and 47.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.22ms. Allocated memory is still 69.2MB. Free memory was 47.0MB in the beginning and 44.8MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1154.85ms. Allocated memory is still 69.2MB. Free memory was 44.8MB in the beginning and 39.9MB in the end (delta: 4.9MB). Peak memory consumption was 19.2MB. Max. memory is 16.1GB. * TraceAbstraction took 499.88ms. Allocated memory was 69.2MB in the beginning and 96.5MB in the end (delta: 27.3MB). Free memory was 39.3MB in the beginning and 75.1MB in the end (delta: -35.8MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-16 15:53:15,889 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad775eaf-3565-45bb-9186-b869594ff870/bin/utaipan-Xvt2sAort0/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) with exit command (exit)) Received EOF on stdin. No stderr output.