./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/cast_union_loose.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version ff03de63 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:47:16,384 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:47:16,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:47:16,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:47:16,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:47:16,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:47:16,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:47:16,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:47:16,452 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:47:16,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:47:16,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:47:16,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:47:16,459 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:47:16,462 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:47:16,463 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:47:16,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:47:16,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:47:16,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:47:16,473 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:47:16,479 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:47:16,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:47:16,482 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:47:16,484 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:47:16,485 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:47:16,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:47:16,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:47:16,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:47:16,494 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:47:16,495 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:47:16,496 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:47:16,496 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:47:16,497 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:47:16,499 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:47:16,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:47:16,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:47:16,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:47:16,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:47:16,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:47:16,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:47:16,504 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:47:16,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:47:16,505 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:47:16,541 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:47:16,541 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:47:16,541 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:47:16,541 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:47:16,542 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:47:16,542 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:47:16,543 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:47:16,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:47:16,543 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:47:16,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:47:16,544 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:47:16,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:47:16,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:47:16,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:47:16,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:47:16,544 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:47:16,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:47:16,545 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:47:16,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:47:16,545 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:47:16,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:47:16,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:47:16,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:47:16,546 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:47:16,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:47:16,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:47:16,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:47:16,547 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:47:16,547 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:47:16,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:47:16,547 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:47:16,547 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:47:16,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:47:16,548 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:47:16,548 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2021-12-21 11:47:16,770 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:47:16,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:47:16,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:47:16,795 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:47:16,795 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:47:16,797 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-12-21 11:47:16,859 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af0e9f24/1d4ba8ba83ef460785e9cf9d37c69d0d/FLAGde47d1d48 [2021-12-21 11:47:17,261 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:47:17,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-12-21 11:47:17,270 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af0e9f24/1d4ba8ba83ef460785e9cf9d37c69d0d/FLAGde47d1d48 [2021-12-21 11:47:17,655 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6af0e9f24/1d4ba8ba83ef460785e9cf9d37c69d0d [2021-12-21 11:47:17,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:47:17,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:47:17,660 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:47:17,661 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:47:17,664 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:47:17,665 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,667 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@721e3082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17, skipping insertion in model container [2021-12-21 11:47:17,667 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:47:17,685 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:47:17,837 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2021-12-21 11:47:17,857 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:47:17,863 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:47:17,878 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2021-12-21 11:47:17,892 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:47:17,910 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:47:17,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17 WrapperNode [2021-12-21 11:47:17,911 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:47:17,912 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:47:17,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:47:17,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:47:17,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,926 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,948 INFO L137 Inliner]: procedures = 18, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2021-12-21 11:47:17,948 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:47:17,949 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:47:17,949 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:47:17,949 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:47:17,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,970 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,990 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:17,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:47:17,995 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:47:17,996 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:47:17,996 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:47:17,997 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (1/1) ... [2021-12-21 11:47:18,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:47:18,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:47:18,033 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 11:47:18,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 11:47:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:47:18,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:47:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:47:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 11:47:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 11:47:18,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:47:18,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:47:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 11:47:18,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:47:18,145 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:47:18,147 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:47:18,314 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:47:18,319 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:47:18,320 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:47:18,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:18 BoogieIcfgContainer [2021-12-21 11:47:18,321 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:47:18,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:47:18,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:47:18,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:47:18,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:47:17" (1/3) ... [2021-12-21 11:47:18,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491dfb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:47:18, skipping insertion in model container [2021-12-21 11:47:18,344 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:17" (2/3) ... [2021-12-21 11:47:18,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@491dfb15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:47:18, skipping insertion in model container [2021-12-21 11:47:18,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:18" (3/3) ... [2021-12-21 11:47:18,346 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2021-12-21 11:47:18,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:47:18,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:47:18,409 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:47:18,417 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 11:47:18,418 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:47:18,431 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 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) [2021-12-21 11:47:18,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-21 11:47:18,446 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:47:18,447 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:47:18,448 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:47:18,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:47:18,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2021-12-21 11:47:18,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:47:18,463 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937473622] [2021-12-21 11:47:18,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:47:18,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:47:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:47:18,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:47:18,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:47:18,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937473622] [2021-12-21 11:47:18,621 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937473622] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:47:18,621 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:47:18,621 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:47:18,622 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061960056] [2021-12-21 11:47:18,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:47:18,626 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:47:18,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:47:18,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:47:18,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:47:18,657 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:18,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:47:18,671 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-12-21 11:47:18,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:47:18,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-21 11:47:18,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:47:18,680 INFO L225 Difference]: With dead ends: 21 [2021-12-21 11:47:18,681 INFO L226 Difference]: Without dead ends: 8 [2021-12-21 11:47:18,683 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:47:18,688 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:47:18,689 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:47:18,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-12-21 11:47:18,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-12-21 11:47:18,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:18,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-12-21 11:47:18,716 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2021-12-21 11:47:18,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:47:18,716 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-12-21 11:47:18,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:18,717 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-12-21 11:47:18,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-21 11:47:18,717 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:47:18,718 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:47:18,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:47:18,718 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:47:18,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:47:18,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2021-12-21 11:47:18,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:47:18,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128042127] [2021-12-21 11:47:18,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:47:18,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:47:18,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:47:18,781 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:47:18,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:47:18,844 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 11:47:18,845 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:47:18,847 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:47:18,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 11:47:18,858 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 11:47:18,862 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:47:18,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:47:18 BoogieIcfgContainer [2021-12-21 11:47:18,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:47:18,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:47:18,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:47:18,895 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:47:18,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:18" (3/4) ... [2021-12-21 11:47:18,898 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 11:47:18,899 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:47:18,900 INFO L158 Benchmark]: Toolchain (without parser) took 1240.59ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 63.0MB in the beginning and 44.9MB in the end (delta: 18.1MB). Peak memory consumption was 34.8MB. Max. memory is 16.1GB. [2021-12-21 11:47:18,901 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:18,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.37ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 62.7MB in the beginning and 86.3MB in the end (delta: -23.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:47:18,904 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.94ms. Allocated memory is still 109.1MB. Free memory was 86.3MB in the beginning and 84.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:47:18,907 INFO L158 Benchmark]: Boogie Preprocessor took 45.33ms. Allocated memory is still 109.1MB. Free memory was 84.2MB in the beginning and 83.3MB in the end (delta: 925.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:47:18,907 INFO L158 Benchmark]: RCFGBuilder took 326.13ms. Allocated memory is still 109.1MB. Free memory was 83.3MB in the beginning and 72.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 11:47:18,907 INFO L158 Benchmark]: TraceAbstraction took 569.46ms. Allocated memory is still 109.1MB. Free memory was 72.2MB in the beginning and 44.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-12-21 11:47:18,908 INFO L158 Benchmark]: Witness Printer took 4.95ms. Allocated memory is still 109.1MB. Free memory is still 44.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:18,914 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 90.2MB. Free memory was 47.8MB in the beginning and 47.7MB in the end (delta: 84.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 251.37ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 62.7MB in the beginning and 86.3MB in the end (delta: -23.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.94ms. Allocated memory is still 109.1MB. Free memory was 86.3MB in the beginning and 84.7MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.33ms. Allocated memory is still 109.1MB. Free memory was 84.2MB in the beginning and 83.3MB in the end (delta: 925.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 326.13ms. Allocated memory is still 109.1MB. Free memory was 83.3MB in the beginning and 72.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 569.46ms. Allocated memory is still 109.1MB. Free memory was 72.2MB in the beginning and 44.9MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Witness Printer took 4.95ms. Allocated memory is still 109.1MB. Free memory is still 44.9MB. 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: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 39, overapproximation of someBinaryArithmeticDOUBLEoperation at line 27, overapproximation of bitwiseXor at line 26. Possible FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; VAL [\old(i)=0, i=0] [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-21 11:47:18,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-benchs/cast_union_loose.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:47:20,906 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:47:20,908 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:47:20,941 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:47:20,942 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:47:20,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:47:20,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:47:20,946 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:47:20,947 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:47:20,948 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:47:20,949 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:47:20,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:47:20,961 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:47:20,965 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:47:20,966 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:47:20,968 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:47:20,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:47:20,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:47:20,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:47:20,974 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:47:20,975 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:47:20,978 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:47:20,979 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:47:20,981 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:47:20,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:47:20,987 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:47:20,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:47:20,991 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:47:20,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:47:20,994 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:47:20,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:47:20,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:47:20,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:47:20,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:47:20,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:47:20,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:47:20,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:47:21,000 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:47:21,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:47:21,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:47:21,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:47:21,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:47:21,033 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:47:21,033 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:47:21,034 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:47:21,034 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:47:21,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:47:21,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:47:21,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:47:21,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:47:21,037 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:47:21,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:47:21,038 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:47:21,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:47:21,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:47:21,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:47:21,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:47:21,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:47:21,039 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:47:21,039 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:47:21,039 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:47:21,040 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:47:21,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:47:21,040 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:47:21,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:47:21,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:47:21,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:47:21,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:47:21,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:47:21,041 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:47:21,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:47:21,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:47:21,042 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:47:21,042 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:47:21,042 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:47:21,043 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:47:21,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:47:21,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:47:21,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:47:21,043 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad01e5fd5f490cad060ffa4545639c9a981c8333c1ed6f02c3073a3418f2324 [2021-12-21 11:47:21,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:47:21,328 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:47:21,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:47:21,332 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:47:21,333 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:47:21,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-12-21 11:47:21,390 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8ff2030/a03aa8ef90fc421ca27405176968b416/FLAG69bd2f13f [2021-12-21 11:47:21,828 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:47:21,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c [2021-12-21 11:47:21,834 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8ff2030/a03aa8ef90fc421ca27405176968b416/FLAG69bd2f13f [2021-12-21 11:47:22,250 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4b8ff2030/a03aa8ef90fc421ca27405176968b416 [2021-12-21 11:47:22,252 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:47:22,253 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:47:22,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:47:22,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:47:22,263 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:47:22,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10495910 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22, skipping insertion in model container [2021-12-21 11:47:22,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:47:22,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:47:22,386 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2021-12-21 11:47:22,400 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:47:22,409 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:47:22,420 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/cast_union_loose.c[582,595] [2021-12-21 11:47:22,428 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:47:22,452 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:47:22,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22 WrapperNode [2021-12-21 11:47:22,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:47:22,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:47:22,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:47:22,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:47:22,462 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,481 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,504 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2021-12-21 11:47:22,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:47:22,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:47:22,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:47:22,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:47:22,512 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,520 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,539 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:47:22,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:47:22,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:47:22,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:47:22,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (1/1) ... [2021-12-21 11:47:22,554 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:47:22,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:47:22,581 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-21 11:47:22,594 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-21 11:47:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:47:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-21 11:47:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:47:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:47:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 11:47:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:47:22,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:47:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:47:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 11:47:22,702 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:47:22,703 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:47:23,072 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:47:23,078 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:47:23,078 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:47:23,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:23 BoogieIcfgContainer [2021-12-21 11:47:23,082 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:47:23,084 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:47:23,084 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:47:23,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:47:23,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:47:22" (1/3) ... [2021-12-21 11:47:23,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72712fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:47:23, skipping insertion in model container [2021-12-21 11:47:23,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:47:22" (2/3) ... [2021-12-21 11:47:23,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72712fe4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:47:23, skipping insertion in model container [2021-12-21 11:47:23,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:23" (3/3) ... [2021-12-21 11:47:23,089 INFO L111 eAbstractionObserver]: Analyzing ICFG cast_union_loose.c [2021-12-21 11:47:23,098 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:47:23,111 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:47:23,180 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:47:23,185 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-21 11:47:23,186 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:47:23,210 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 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) [2021-12-21 11:47:23,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-21 11:47:23,215 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:47:23,215 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:47:23,216 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:47:23,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:47:23,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2021-12-21 11:47:23,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:47:23,235 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1139377638] [2021-12-21 11:47:23,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:47:23,236 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:47:23,236 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:47:23,241 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 11:47:23,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-21 11:47:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:47:23,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 1 conjunts are in the unsatisfiable core [2021-12-21 11:47:23,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 11:47:23,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:47:23,449 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-21 11:47:23,450 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-21 11:47:23,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1139377638] [2021-12-21 11:47:23,450 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1139377638] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:47:23,451 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:47:23,451 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-21 11:47:23,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614566404] [2021-12-21 11:47:23,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:47:23,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-21 11:47:23,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-21 11:47:23,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-21 11:47:23,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:47:23,481 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.3) internal successors, (13), 11 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) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:23,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:47:23,491 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2021-12-21 11:47:23,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-21 11:47:23,493 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-21 11:47:23,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:47:23,499 INFO L225 Difference]: With dead ends: 21 [2021-12-21 11:47:23,499 INFO L226 Difference]: Without dead ends: 8 [2021-12-21 11:47:23,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-21 11:47:23,505 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:47:23,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:47:23,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2021-12-21 11:47:23,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2021-12-21 11:47:23,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.0) internal successors, (7), 7 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2021-12-21 11:47:23,531 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2021-12-21 11:47:23,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:47:23,532 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2021-12-21 11:47:23,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:47:23,532 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2021-12-21 11:47:23,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-21 11:47:23,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:47:23,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:47:23,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-21 11:47:23,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:47:23,747 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:47:23,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:47:23,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1806812424, now seen corresponding path program 1 times [2021-12-21 11:47:23,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-21 11:47:23,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1124469078] [2021-12-21 11:47:23,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:47:23,749 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-21 11:47:23,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-21 11:47:23,750 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-21 11:47:23,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-21 11:47:23,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:47:23,937 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:47:24,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:47:24,070 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-12-21 11:47:24,070 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:47:24,071 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:47:24,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-21 11:47:24,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-21 11:47:24,276 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-12-21 11:47:24,279 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:47:24,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:47:24 BoogieIcfgContainer [2021-12-21 11:47:24,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:47:24,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:47:24,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:47:24,309 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:47:24,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:47:23" (3/4) ... [2021-12-21 11:47:24,311 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-12-21 11:47:24,341 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-21 11:47:24,341 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:47:24,342 INFO L158 Benchmark]: Toolchain (without parser) took 2088.70ms. Allocated memory is still 56.6MB. Free memory was 41.7MB in the beginning and 36.5MB in the end (delta: 5.2MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-12-21 11:47:24,342 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 46.1MB. Free memory was 28.5MB in the beginning and 28.5MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:24,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.51ms. Allocated memory is still 56.6MB. Free memory was 41.5MB in the beginning and 30.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 11:47:24,343 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.80ms. Allocated memory is still 56.6MB. Free memory was 30.6MB in the beginning and 29.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:47:24,344 INFO L158 Benchmark]: Boogie Preprocessor took 42.07ms. Allocated memory is still 56.6MB. Free memory was 28.9MB in the beginning and 27.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:47:24,344 INFO L158 Benchmark]: RCFGBuilder took 534.33ms. Allocated memory is still 56.6MB. Free memory was 27.6MB in the beginning and 32.4MB in the end (delta: -4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 11:47:24,344 INFO L158 Benchmark]: TraceAbstraction took 1223.00ms. Allocated memory is still 56.6MB. Free memory was 31.8MB in the beginning and 38.4MB in the end (delta: -6.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. [2021-12-21 11:47:24,345 INFO L158 Benchmark]: Witness Printer took 33.10ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 36.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:47:24,347 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 46.1MB. Free memory was 28.5MB in the beginning and 28.5MB in the end (delta: 32.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.51ms. Allocated memory is still 56.6MB. Free memory was 41.5MB in the beginning and 30.6MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.80ms. Allocated memory is still 56.6MB. Free memory was 30.6MB in the beginning and 29.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.07ms. Allocated memory is still 56.6MB. Free memory was 28.9MB in the beginning and 27.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 534.33ms. Allocated memory is still 56.6MB. Free memory was 27.6MB in the beginning and 32.4MB in the end (delta: -4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1223.00ms. Allocated memory is still 56.6MB. Free memory was 31.8MB in the beginning and 38.4MB in the end (delta: -6.6MB). Peak memory consumption was 11.9MB. Max. memory is 16.1GB. * Witness Printer took 33.10ms. Allocated memory is still 56.6MB. Free memory was 38.4MB in the beginning and 36.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L32] int a; [L33] double r; [L35] a = __VERIFIER_nondet_int() [L36] CALL assume_abort_if_not(a >= -10000 && a <= 10000) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L36] RET assume_abort_if_not(a >= -10000 && a <= 10000) [L38] CALL, EXPR cast(a) [L22] union u x, y; [L23] x.i[0] = 0x43300000 [L24] EXPR x.i[0] [L24] y.i[0] = x.i[0] [L25] x.i[1] = 0x80000000 [L26] EXPR x.i[1] [L26] y.i[1] = i ^ x.i[1] [L27] EXPR y.d [L27] EXPR x.d [L27] return y.d - x.d; [L27] return y.d - x.d; [L27] return y.d - x.d; VAL [\old(i)=4294957296, \result=NaN, i=4294957296] [L38] RET, EXPR cast(a) [L38] r = cast(a) [L39] CALL __VERIFIER_assert(r >= -10000. && r <= 10000.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 11 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 SizeOfPredicates, 0 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-12-21 11:47:24,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE