./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.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/inv_Newton.c.p+cfa-reducer.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 f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:49:55,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:49:55,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:49:55,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:49:55,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:49:55,443 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:49:55,444 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:49:55,446 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:49:55,450 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:49:55,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:49:55,451 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:49:55,453 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:49:55,454 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:49:55,456 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:49:55,458 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:49:55,459 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:49:55,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:49:55,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:49:55,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:49:55,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:49:55,472 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:49:55,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:49:55,474 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:49:55,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:49:55,478 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:49:55,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:49:55,481 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:49:55,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:49:55,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:49:55,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:49:55,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:49:55,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:49:55,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:49:55,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:49:55,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:49:55,488 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:49:55,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:49:55,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:49:55,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:49:55,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:49:55,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:49:55,491 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 11:49:55,522 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:49:55,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:49:55,523 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:49:55,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:49:55,524 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:49:55,525 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:49:55,525 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:49:55,525 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:49:55,525 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:49:55,526 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:49:55,526 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:49:55,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 11:49:55,527 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:49:55,527 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:49:55,527 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:49:55,527 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:49:55,528 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:49:55,528 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:49:55,528 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:49:55,528 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:49:55,528 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:49:55,528 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:49:55,529 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:49:55,529 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:49:55,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:49:55,529 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:49:55,529 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:49:55,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:49:55,530 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 11:49:55,530 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 11:49:55,530 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:49:55,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:49:55,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:49:55,531 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:49:55,531 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 [2021-12-21 11:49:55,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:49:55,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:49:55,842 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:49:55,844 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:49:55,845 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:49:55,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2021-12-21 11:49:55,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e1ea2b9/3b74677fda8e40698db7dee0089633c6/FLAG839d324c7 [2021-12-21 11:49:56,311 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:49:56,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2021-12-21 11:49:56,321 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e1ea2b9/3b74677fda8e40698db7dee0089633c6/FLAG839d324c7 [2021-12-21 11:49:56,718 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31e1ea2b9/3b74677fda8e40698db7dee0089633c6 [2021-12-21 11:49:56,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:49:56,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:49:56,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:49:56,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:49:56,725 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:49:56,726 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:49:56" (1/1) ... [2021-12-21 11:49:56,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b2a4247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:56, skipping insertion in model container [2021-12-21 11:49:56,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:49:56" (1/1) ... [2021-12-21 11:49:56,734 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:49:56,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:49:56,954 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/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2021-12-21 11:49:56,960 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:49:56,968 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:49:57,003 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/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2021-12-21 11:49:57,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:49:57,019 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:49:57,021 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57 WrapperNode [2021-12-21 11:49:57,021 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:49:57,023 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:49:57,023 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:49:57,023 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:49:57,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,059 INFO L137 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 98 [2021-12-21 11:49:57,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:49:57,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:49:57,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:49:57,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:49:57,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:49:57,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:49:57,105 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:49:57,105 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:49:57,106 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (1/1) ... [2021-12-21 11:49:57,112 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:49:57,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:49:57,141 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 11:49:57,161 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 11:49:57,175 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:49:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 11:49:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:49:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-12-21 11:49:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 11:49:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-12-21 11:49:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:49:57,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:49:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 11:49:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:49:57,257 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:49:57,259 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:49:57,422 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 11:49:57,427 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 11:49:57,443 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 11:49:57,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:49:57 BoogieIcfgContainer [2021-12-21 11:49:57,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 11:49:57,447 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 11:49:57,447 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 11:49:57,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 11:49:57,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:49:56" (1/3) ... [2021-12-21 11:49:57,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a65af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:49:57, skipping insertion in model container [2021-12-21 11:49:57,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:49:57" (2/3) ... [2021-12-21 11:49:57,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48a65af1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:49:57, skipping insertion in model container [2021-12-21 11:49:57,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:49:57" (3/3) ... [2021-12-21 11:49:57,453 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton.c.p+cfa-reducer.c [2021-12-21 11:49:57,457 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 11:49:57,457 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 11:49:57,532 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 11:49:57,540 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 11:49:57,540 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 11:49:57,552 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 11:49:57,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-21 11:49:57,565 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:49:57,565 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:49:57,566 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:49:57,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:49:57,570 INFO L85 PathProgramCache]: Analyzing trace with hash -938930996, now seen corresponding path program 1 times [2021-12-21 11:49:57,577 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:49:57,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815487340] [2021-12-21 11:49:57,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:49:57,579 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:49:57,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:49:57,800 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 11:49:57,800 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:49:57,800 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815487340] [2021-12-21 11:49:57,801 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815487340] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:49:57,801 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:49:57,801 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 11:49:57,803 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587331062] [2021-12-21 11:49:57,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:49:57,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 11:49:57,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:49:57,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 11:49:57,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 11:49:57,834 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:49:57,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:49:57,871 INFO L93 Difference]: Finished difference Result 49 states and 67 transitions. [2021-12-21 11:49:57,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 11:49:57,874 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-21 11:49:57,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:49:57,879 INFO L225 Difference]: With dead ends: 49 [2021-12-21 11:49:57,879 INFO L226 Difference]: Without dead ends: 33 [2021-12-21 11:49:57,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:49:57,884 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 33 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:49:57,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 70 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:49:57,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2021-12-21 11:49:57,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 19. [2021-12-21 11:49:57,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.3888888888888888) internal successors, (25), 18 states have internal predecessors, (25), 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 11:49:57,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2021-12-21 11:49:57,910 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 11 [2021-12-21 11:49:57,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:49:57,910 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2021-12-21 11:49:57,911 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-21 11:49:57,911 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2021-12-21 11:49:57,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-21 11:49:57,911 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:49:57,912 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:49:57,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 11:49:57,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:49:57,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:49:57,913 INFO L85 PathProgramCache]: Analyzing trace with hash 1250925041, now seen corresponding path program 1 times [2021-12-21 11:49:57,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:49:57,914 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207805283] [2021-12-21 11:49:57,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:49:57,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:49:57,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:49:57,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-21 11:49:57,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:49:57,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207805283] [2021-12-21 11:49:57,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207805283] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:49:57,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:49:57,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 11:49:57,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249732455] [2021-12-21 11:49:57,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:49:57,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 11:49:57,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:49:57,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 11:49:57,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:49:57,972 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 11:49:58,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:49:58,045 INFO L93 Difference]: Finished difference Result 44 states and 57 transitions. [2021-12-21 11:49:58,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 11:49:58,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-12-21 11:49:58,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:49:58,047 INFO L225 Difference]: With dead ends: 44 [2021-12-21 11:49:58,047 INFO L226 Difference]: Without dead ends: 37 [2021-12-21 11:49:58,047 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 11:49:58,049 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 30 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:49:58,049 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 71 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:49:58,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-21 11:49:58,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 20. [2021-12-21 11:49:58,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.368421052631579) internal successors, (26), 19 states have internal predecessors, (26), 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 11:49:58,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2021-12-21 11:49:58,054 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 15 [2021-12-21 11:49:58,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:49:58,054 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2021-12-21 11:49:58,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 11:49:58,055 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2021-12-21 11:49:58,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-21 11:49:58,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:49:58,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:49:58,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 11:49:58,067 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:49:58,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:49:58,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1796523982, now seen corresponding path program 1 times [2021-12-21 11:49:58,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:49:58,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090723581] [2021-12-21 11:49:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:49:58,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:49:58,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 11:49:58,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-21 11:49:58,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 11:49:58,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090723581] [2021-12-21 11:49:58,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090723581] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 11:49:58,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 11:49:58,135 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 11:49:58,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276910454] [2021-12-21 11:49:58,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 11:49:58,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 11:49:58,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 11:49:58,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 11:49:58,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 11:49:58,140 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 11:49:58,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 11:49:58,176 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2021-12-21 11:49:58,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 11:49:58,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 15 [2021-12-21 11:49:58,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 11:49:58,177 INFO L225 Difference]: With dead ends: 41 [2021-12-21 11:49:58,177 INFO L226 Difference]: Without dead ends: 35 [2021-12-21 11:49:58,178 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-21 11:49:58,179 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 11:49:58,180 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 79 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 11:49:58,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-12-21 11:49:58,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 20. [2021-12-21 11:49:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 19 states have internal predecessors, (25), 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 11:49:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2021-12-21 11:49:58,187 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 15 [2021-12-21 11:49:58,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 11:49:58,187 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2021-12-21 11:49:58,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 11:49:58,188 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2021-12-21 11:49:58,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-21 11:49:58,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 11:49:58,188 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 11:49:58,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 11:49:58,189 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 11:49:58,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 11:49:58,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1813534643, now seen corresponding path program 1 times [2021-12-21 11:49:58,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 11:49:58,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201982304] [2021-12-21 11:49:58,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 11:49:58,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 11:49:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:49:58,208 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 11:49:58,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 11:49:58,232 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 11:49:58,233 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 11:49:58,234 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 11:49:58,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 11:49:58,242 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-12-21 11:49:58,244 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 11:49:58,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:49:58 BoogieIcfgContainer [2021-12-21 11:49:58,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 11:49:58,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 11:49:58,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 11:49:58,272 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 11:49:58,272 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:49:57" (3/4) ... [2021-12-21 11:49:58,274 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 11:49:58,275 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 11:49:58,275 INFO L158 Benchmark]: Toolchain (without parser) took 1554.06ms. Allocated memory is still 104.9MB. Free memory was 71.5MB in the beginning and 66.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-12-21 11:49:58,276 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:49:58,276 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.33ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 80.1MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:49:58,279 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.78ms. Allocated memory is still 104.9MB. Free memory was 80.1MB in the beginning and 78.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:49:58,280 INFO L158 Benchmark]: Boogie Preprocessor took 43.26ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 77.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:49:58,280 INFO L158 Benchmark]: RCFGBuilder took 341.39ms. Allocated memory is still 104.9MB. Free memory was 77.5MB in the beginning and 66.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-21 11:49:58,280 INFO L158 Benchmark]: TraceAbstraction took 824.19ms. Allocated memory is still 104.9MB. Free memory was 66.0MB in the beginning and 66.9MB in the end (delta: -890.2kB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. [2021-12-21 11:49:58,281 INFO L158 Benchmark]: Witness Printer took 3.07ms. Allocated memory is still 104.9MB. Free memory was 66.9MB in the beginning and 66.3MB in the end (delta: 600.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:49:58,283 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory was 77.0MB in the beginning and 76.9MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.33ms. Allocated memory is still 104.9MB. Free memory was 71.3MB in the beginning and 80.1MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.78ms. Allocated memory is still 104.9MB. Free memory was 80.1MB in the beginning and 78.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.26ms. Allocated memory is still 104.9MB. Free memory was 78.6MB in the beginning and 77.5MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 341.39ms. Allocated memory is still 104.9MB. Free memory was 77.5MB in the beginning and 66.5MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 824.19ms. Allocated memory is still 104.9MB. Free memory was 66.0MB in the beginning and 66.9MB in the end (delta: -890.2kB). Peak memory consumption was 2.7MB. Max. memory is 16.1GB. * Witness Printer took 3.07ms. Allocated memory is still 104.9MB. Free memory was 66.9MB in the beginning and 66.3MB in the end (delta: 600.3kB). 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: 96]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 45, overapproximation of someBinaryArithmeticDOUBLEoperation at line 53, overapproximation of someBinaryDOUBLEComparisonOperation at line 83, overapproximation of to_real at line 46. Possible FailurePath: [L1] int __return_main; [L17] double __return_104; VAL [__return_104=0, __return_main=0] [L20] double main__a; [L21] double main__r; [L22] main__a = __VERIFIER_nondet_double() [L23] int main____CPAchecker_TMP_0; VAL [__return_104=0, __return_main=0] [L24] COND TRUE main__a >= 20.0 VAL [__return_104=0, __return_main=0] [L26] COND TRUE main__a <= 30.0 [L28] main____CPAchecker_TMP_0 = 1 VAL [__return_104=0, __return_main=0, main____CPAchecker_TMP_0=1] [L30] COND TRUE main____CPAchecker_TMP_0 != 0 [L33] double __tmp_1; [L34] __tmp_1 = main__a [L35] double inv__A; [L36] inv__A = __tmp_1 [L37] double inv__xi; [L38] double inv__xsi; [L39] double inv__temp; [L40] signed int inv__cond; [L41] signed int inv__exp; [L42] union double_int inv__A_u; [L43] union double_int inv__xi_u; [L44] inv__A_u.d = inv__A [L45] EXPR inv__A_u.i [L45] inv__exp = ((signed int)(((inv__A_u.i) & 2146435072) >> 20)) - 1023 [L46] inv__xi_u.d = 1 [L47] inv__xi_u.i = (1023 - inv__exp) << 20 [L48] EXPR inv__xi_u.d [L48] inv__xi = inv__xi_u.d [L49] inv__cond = 1 VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv__A=2145386497, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386500, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386497] [L51] COND TRUE !(inv__cond == 0) [L53] inv__xsi = (2 * inv__xi) - ((inv__A * inv__xi) * inv__xi) [L54] inv__temp = inv__xsi - inv__xi [L55] int inv____CPAchecker_TMP_0; VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv__A=2145386497, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386500, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386497] [L56] COND FALSE !(inv__temp > 1.0E-10) VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv__A=2145386497, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386500, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386497] [L67] COND FALSE !(inv__temp < -1.0E-10) [L73] inv____CPAchecker_TMP_0 = 0 VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=1, inv__exp=-1023, inv__xi=2145386500, inv__xi_u={5:0}, main____CPAchecker_TMP_0=1, main__a=2145386497] [L61] inv__cond = inv____CPAchecker_TMP_0 [L62] inv__xi = inv__xsi VAL [__return_104=0, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main__a=2145386497] [L51] COND FALSE !(!(inv__cond == 0)) [L80] __return_104 = inv__xi [L81] main__r = __return_104 [L82] int main____CPAchecker_TMP_1; VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main__a=2145386497, main__r=2145386499] [L83] COND FALSE !(main__r >= 0) VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main__a=2145386497, main__r=2145386499] [L108] main____CPAchecker_TMP_1 = 0 VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386497, main__r=2145386499] [L90] int __tmp_2; [L91] __tmp_2 = main____CPAchecker_TMP_1 [L92] int __VERIFIER_assert__cond; [L93] __VERIFIER_assert__cond = __tmp_2 VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, __tmp_2=0, __VERIFIER_assert__cond=0, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386497, main__r=2145386499] [L94] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, __tmp_2=0, __VERIFIER_assert__cond=0, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386497, main__r=2145386499] [L96] reach_error() VAL [__return_104=2145386499, __return_main=0, __tmp_1=2145386497, __tmp_2=0, __VERIFIER_assert__cond=0, inv____CPAchecker_TMP_0=0, inv__A=2145386497, inv__A_u={4:0}, inv__cond=0, inv__exp=-1023, inv__xi=2145386499, inv__xi_u={5:0}, inv__xsi=2145386499, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__a=2145386497, main__r=2145386499] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 83 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 220 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 149 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 44 IncrementalHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 71 mSDtfsCounter, 44 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 19, 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, 3 MinimizatonAttempts, 46 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 59 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 2/2 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 11:49:58,325 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/inv_Newton.c.p+cfa-reducer.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 f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 11:50:00,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 11:50:00,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 11:50:00,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 11:50:00,241 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 11:50:00,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 11:50:00,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 11:50:00,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 11:50:00,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 11:50:00,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 11:50:00,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 11:50:00,259 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 11:50:00,259 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 11:50:00,261 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 11:50:00,262 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 11:50:00,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 11:50:00,268 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 11:50:00,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 11:50:00,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 11:50:00,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 11:50:00,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 11:50:00,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 11:50:00,278 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 11:50:00,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 11:50:00,284 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 11:50:00,284 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 11:50:00,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 11:50:00,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 11:50:00,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 11:50:00,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 11:50:00,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 11:50:00,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 11:50:00,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 11:50:00,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 11:50:00,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 11:50:00,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 11:50:00,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 11:50:00,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 11:50:00,293 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 11:50:00,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 11:50:00,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 11:50:00,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 11:50:00,327 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 11:50:00,327 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 11:50:00,328 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 11:50:00,328 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 11:50:00,329 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 11:50:00,329 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 11:50:00,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 11:50:00,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 11:50:00,331 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 11:50:00,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 11:50:00,332 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 11:50:00,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 11:50:00,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 11:50:00,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 11:50:00,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 11:50:00,333 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 11:50:00,333 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 11:50:00,333 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 11:50:00,333 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 11:50:00,334 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 11:50:00,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 11:50:00,334 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 11:50:00,334 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 11:50:00,334 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 11:50:00,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 11:50:00,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 11:50:00,335 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:50:00,335 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 11:50:00,335 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 11:50:00,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 11:50:00,336 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 11:50:00,336 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 11:50:00,336 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 11:50:00,337 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 11:50:00,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 11:50:00,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 11:50:00,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 11:50:00,337 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f807884dfe796c964ede5317ceef5bdc8dc93cb7b5e0611cc0dc63f2d13b17a0 [2021-12-21 11:50:00,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 11:50:00,664 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 11:50:00,666 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 11:50:00,667 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 11:50:00,671 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 11:50:00,672 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2021-12-21 11:50:00,718 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e2cac11/13049c907f834ca1b3b74ea91b4081b0/FLAG3bebc6daf [2021-12-21 11:50:01,084 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 11:50:01,085 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-benchs/inv_Newton.c.p+cfa-reducer.c [2021-12-21 11:50:01,094 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e2cac11/13049c907f834ca1b3b74ea91b4081b0/FLAG3bebc6daf [2021-12-21 11:50:01,508 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9e2cac11/13049c907f834ca1b3b74ea91b4081b0 [2021-12-21 11:50:01,510 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 11:50:01,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 11:50:01,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 11:50:01,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 11:50:01,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 11:50:01,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,527 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28472d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01, skipping insertion in model container [2021-12-21 11:50:01,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 11:50:01,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 11:50:01,699 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/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2021-12-21 11:50:01,703 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:50:01,714 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 11:50:01,775 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/inv_Newton.c.p+cfa-reducer.c[2006,2019] [2021-12-21 11:50:01,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 11:50:01,805 INFO L208 MainTranslator]: Completed translation [2021-12-21 11:50:01,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01 WrapperNode [2021-12-21 11:50:01,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 11:50:01,806 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 11:50:01,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 11:50:01,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 11:50:01,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,852 INFO L137 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 99 [2021-12-21 11:50:01,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 11:50:01,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 11:50:01,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 11:50:01,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 11:50:01,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,870 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,892 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,899 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 11:50:01,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 11:50:01,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 11:50:01,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 11:50:01,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:50:01" (1/1) ... [2021-12-21 11:50:01,913 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 11:50:01,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 11:50:01,932 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 11:50:01,934 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 11:50:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 11:50:01,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-12-21 11:50:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-12-21 11:50:01,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 11:50:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 11:50:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-21 11:50:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 11:50:01,966 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 11:50:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 11:50:01,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-21 11:50:02,020 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 11:50:02,021 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 11:50:02,109 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.AssertionError: Not a regular bitvector operator with bitvector result: bvshl at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$RegularBitvectorOperation_BitvectorResult.isCommutative(BitvectorUtils.java:505) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.notSimplified(BitvectorUtils.java:296) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.simplify_NonConstantCase(BitvectorUtils.java:291) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$BitvectorOperation.simplifiedResult(BitvectorUtils.java:286) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils.termWithLocalSimplification(BitvectorUtils.java:217) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.termWithLocalSimplification(SmtUtils.java:1490) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateFunctionApplication(Expression2Term.java:405) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:258) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateToTerms(Expression2Term.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.addSummary(Statements2TransFormula.java:412) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:733) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:264) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) 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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-21 11:50:02,116 INFO L158 Benchmark]: Toolchain (without parser) took 602.56ms. Allocated memory was 46.1MB in the beginning and 58.7MB in the end (delta: 12.6MB). Free memory was 22.5MB in the beginning and 30.0MB in the end (delta: -7.5MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-12-21 11:50:02,117 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 46.1MB. Free memory is still 28.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:50:02,119 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.03ms. Allocated memory is still 58.7MB. Free memory was 44.0MB in the beginning and 41.7MB in the end (delta: 2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-21 11:50:02,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.50ms. Allocated memory is still 58.7MB. Free memory was 41.7MB in the beginning and 39.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 11:50:02,120 INFO L158 Benchmark]: Boogie Preprocessor took 50.02ms. Allocated memory is still 58.7MB. Free memory was 39.8MB in the beginning and 38.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 11:50:02,121 INFO L158 Benchmark]: RCFGBuilder took 208.62ms. Allocated memory is still 58.7MB. Free memory was 38.5MB in the beginning and 30.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 11:50:02,124 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 46.1MB. Free memory is still 28.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.03ms. Allocated memory is still 58.7MB. Free memory was 44.0MB in the beginning and 41.7MB in the end (delta: 2.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.50ms. Allocated memory is still 58.7MB. Free memory was 41.7MB in the beginning and 39.8MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 50.02ms. Allocated memory is still 58.7MB. Free memory was 39.8MB in the beginning and 38.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 208.62ms. Allocated memory is still 58.7MB. Free memory was 38.5MB in the beginning and 30.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: AssertionError: Not a regular bitvector operator with bitvector result: bvshl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: AssertionError: Not a regular bitvector operator with bitvector result: bvshl: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils$RegularBitvectorOperation_BitvectorResult.isCommutative(BitvectorUtils.java:505) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-21 11:50:02,162 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 Result: ERROR: ExceptionOrErrorResult: AssertionError: Not a regular bitvector operator with bitvector result: bvshl