./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.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/bitvector/soft_float_1-3a.c.cil.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 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 10:18:25,380 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 10:18:25,382 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 10:18:25,435 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 10:18:25,440 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 10:18:25,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 10:18:25,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 10:18:25,445 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 10:18:25,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 10:18:25,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 10:18:25,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 10:18:25,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 10:18:25,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 10:18:25,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 10:18:25,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 10:18:25,454 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 10:18:25,455 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 10:18:25,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 10:18:25,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 10:18:25,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 10:18:25,463 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 10:18:25,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 10:18:25,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 10:18:25,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 10:18:25,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 10:18:25,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 10:18:25,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 10:18:25,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 10:18:25,470 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 10:18:25,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 10:18:25,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 10:18:25,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 10:18:25,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 10:18:25,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 10:18:25,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 10:18:25,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 10:18:25,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 10:18:25,475 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 10:18:25,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 10:18:25,476 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 10:18:25,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 10:18:25,477 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-21 10:18:25,502 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 10:18:25,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 10:18:25,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 10:18:25,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 10:18:25,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 10:18:25,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 10:18:25,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 10:18:25,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 10:18:25,505 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 10:18:25,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 10:18:25,506 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 10:18:25,506 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 10:18:25,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 10:18:25,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 10:18:25,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 10:18:25,506 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 10:18:25,506 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 10:18:25,507 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 10:18:25,507 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 10:18:25,507 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 10:18:25,507 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 10:18:25,507 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 10:18:25,507 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 10:18:25,508 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 10:18:25,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:18:25,508 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 10:18:25,508 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 10:18:25,509 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 10:18:25,509 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 10:18:25,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 10:18:25,509 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 10:18:25,509 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 10:18:25,510 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 10:18:25,510 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 10:18:25,510 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f [2021-12-21 10:18:25,668 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 10:18:25,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 10:18:25,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 10:18:25,683 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 10:18:25,684 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 10:18:25,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-12-21 10:18:25,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50993c590/deeda7f1d1b3484f8d98a120671f00d8/FLAGa933b37f0 [2021-12-21 10:18:26,148 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 10:18:26,150 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-12-21 10:18:26,158 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50993c590/deeda7f1d1b3484f8d98a120671f00d8/FLAGa933b37f0 [2021-12-21 10:18:26,169 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50993c590/deeda7f1d1b3484f8d98a120671f00d8 [2021-12-21 10:18:26,171 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 10:18:26,173 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 10:18:26,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 10:18:26,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 10:18:26,178 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 10:18:26,178 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,179 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@264e844d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26, skipping insertion in model container [2021-12-21 10:18:26,179 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,183 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 10:18:26,220 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 10:18:26,300 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/bitvector/soft_float_1-3a.c.cil.c[730,743] [2021-12-21 10:18:26,352 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:18:26,357 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 10:18:26,365 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/bitvector/soft_float_1-3a.c.cil.c[730,743] [2021-12-21 10:18:26,383 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:18:26,395 INFO L208 MainTranslator]: Completed translation [2021-12-21 10:18:26,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26 WrapperNode [2021-12-21 10:18:26,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 10:18:26,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 10:18:26,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 10:18:26,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 10:18:26,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,407 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,432 INFO L137 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 147 [2021-12-21 10:18:26,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 10:18:26,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 10:18:26,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 10:18:26,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 10:18:26,438 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,440 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,444 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,450 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 10:18:26,451 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 10:18:26,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 10:18:26,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 10:18:26,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (1/1) ... [2021-12-21 10:18:26,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:18:26,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:18:26,475 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 10:18:26,484 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 10:18:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 10:18:26,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 10:18:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-21 10:18:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-21 10:18:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 10:18:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 10:18:26,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-21 10:18:26,506 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-21 10:18:26,550 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 10:18:26,551 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 10:18:26,724 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 10:18:26,729 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 10:18:26,729 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-21 10:18:26,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:18:26 BoogieIcfgContainer [2021-12-21 10:18:26,730 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 10:18:26,731 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 10:18:26,732 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 10:18:26,734 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 10:18:26,734 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 10:18:26" (1/3) ... [2021-12-21 10:18:26,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42350449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:18:26, skipping insertion in model container [2021-12-21 10:18:26,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:26" (2/3) ... [2021-12-21 10:18:26,735 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42350449 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 10:18:26, skipping insertion in model container [2021-12-21 10:18:26,735 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:18:26" (3/3) ... [2021-12-21 10:18:26,736 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-3a.c.cil.c [2021-12-21 10:18:26,739 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 10:18:26,741 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 10:18:26,770 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 10:18:26,774 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 10:18:26,775 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 10:18:26,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 59 states have (on average 1.5932203389830508) internal successors, (94), 62 states have internal predecessors, (94), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-21 10:18:26,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-12-21 10:18:26,791 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:18:26,792 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:18:26,792 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:18:26,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:18:26,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1607439287, now seen corresponding path program 1 times [2021-12-21 10:18:26,801 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:18:26,802 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509429719] [2021-12-21 10:18:26,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:26,803 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:18:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:26,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 10:18:26,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:26,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 10:18:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:27,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 10:18:27,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:27,052 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-21 10:18:27,053 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:18:27,053 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509429719] [2021-12-21 10:18:27,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509429719] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:18:27,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077706050] [2021-12-21 10:18:27,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:27,054 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:18:27,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:18:27,055 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 10:18:27,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 10:18:27,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:27,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-21 10:18:27,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:18:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-21 10:18:27,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 10:18:27,395 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-21 10:18:27,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077706050] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 10:18:27,395 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 10:18:27,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 8] total 16 [2021-12-21 10:18:27,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145183057] [2021-12-21 10:18:27,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 10:18:27,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-12-21 10:18:27,401 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:18:27,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-12-21 10:18:27,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2021-12-21 10:18:27,420 INFO L87 Difference]: Start difference. First operand has 72 states, 59 states have (on average 1.5932203389830508) internal successors, (94), 62 states have internal predecessors, (94), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 16 states, 16 states have (on average 2.125) internal successors, (34), 14 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-21 10:18:27,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:18:27,827 INFO L93 Difference]: Finished difference Result 255 states and 425 transitions. [2021-12-21 10:18:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-21 10:18:27,830 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 14 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 32 [2021-12-21 10:18:27,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:18:27,837 INFO L225 Difference]: With dead ends: 255 [2021-12-21 10:18:27,837 INFO L226 Difference]: Without dead ends: 170 [2021-12-21 10:18:27,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=500, Unknown=0, NotChecked=0, Total=600 [2021-12-21 10:18:27,842 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 215 mSDsluCounter, 1653 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1820 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 10:18:27,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 1820 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 10:18:27,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-12-21 10:18:27,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 103. [2021-12-21 10:18:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 89 states have internal predecessors, (125), 12 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (17), 12 states have call predecessors, (17), 11 states have call successors, (17) [2021-12-21 10:18:27,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 154 transitions. [2021-12-21 10:18:27,877 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 154 transitions. Word has length 32 [2021-12-21 10:18:27,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:18:27,877 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 154 transitions. [2021-12-21 10:18:27,878 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.125) internal successors, (34), 14 states have internal predecessors, (34), 4 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-12-21 10:18:27,878 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 154 transitions. [2021-12-21 10:18:27,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-21 10:18:27,880 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:18:27,880 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:18:27,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-21 10:18:28,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-12-21 10:18:28,088 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:18:28,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:18:28,089 INFO L85 PathProgramCache]: Analyzing trace with hash -33736322, now seen corresponding path program 1 times [2021-12-21 10:18:28,089 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:18:28,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146264477] [2021-12-21 10:18:28,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:28,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:18:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:28,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 10:18:28,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:28,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 10:18:28,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:28,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 10:18:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:28,304 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-21 10:18:28,305 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:18:28,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146264477] [2021-12-21 10:18:28,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146264477] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 10:18:28,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280131530] [2021-12-21 10:18:28,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:28,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 10:18:28,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:18:28,324 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 10:18:28,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-21 10:18:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:28,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 31 conjunts are in the unsatisfiable core [2021-12-21 10:18:28,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-21 10:18:28,456 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-12-21 10:18:28,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-21 10:18:28,739 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-21 10:18:28,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280131530] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-21 10:18:28,739 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-21 10:18:28,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 11] total 18 [2021-12-21 10:18:28,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28003579] [2021-12-21 10:18:28,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-21 10:18:28,741 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-21 10:18:28,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:18:28,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-21 10:18:28,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-12-21 10:18:28,742 INFO L87 Difference]: Start difference. First operand 103 states and 154 transitions. Second operand has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-12-21 10:18:29,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:18:29,169 INFO L93 Difference]: Finished difference Result 273 states and 424 transitions. [2021-12-21 10:18:29,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-12-21 10:18:29,170 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 36 [2021-12-21 10:18:29,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:18:29,172 INFO L225 Difference]: With dead ends: 273 [2021-12-21 10:18:29,172 INFO L226 Difference]: Without dead ends: 208 [2021-12-21 10:18:29,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=167, Invalid=825, Unknown=0, NotChecked=0, Total=992 [2021-12-21 10:18:29,174 INFO L933 BasicCegarLoop]: 110 mSDtfsCounter, 443 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 448 SdHoareTripleChecker+Valid, 874 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-21 10:18:29,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [448 Valid, 874 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-21 10:18:29,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-12-21 10:18:29,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 103. [2021-12-21 10:18:29,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.4069767441860466) internal successors, (121), 89 states have internal predecessors, (121), 12 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (17), 12 states have call predecessors, (17), 11 states have call successors, (17) [2021-12-21 10:18:29,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 150 transitions. [2021-12-21 10:18:29,185 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 150 transitions. Word has length 36 [2021-12-21 10:18:29,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:18:29,186 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 150 transitions. [2021-12-21 10:18:29,186 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 15 states have internal predecessors, (40), 5 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2021-12-21 10:18:29,186 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 150 transitions. [2021-12-21 10:18:29,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-21 10:18:29,187 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:18:29,187 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:18:29,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-21 10:18:29,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-12-21 10:18:29,426 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:18:29,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:18:29,426 INFO L85 PathProgramCache]: Analyzing trace with hash 125469278, now seen corresponding path program 1 times [2021-12-21 10:18:29,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:18:29,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475760160] [2021-12-21 10:18:29,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:29,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:18:29,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 10:18:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 10:18:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 10:18:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-21 10:18:29,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:18:29,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475760160] [2021-12-21 10:18:29,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475760160] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:18:29,549 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:18:29,550 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 10:18:29,550 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519682627] [2021-12-21 10:18:29,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:18:29,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 10:18:29,550 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:18:29,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 10:18:29,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 10:18:29,551 INFO L87 Difference]: Start difference. First operand 103 states and 150 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:29,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:18:29,610 INFO L93 Difference]: Finished difference Result 231 states and 344 transitions. [2021-12-21 10:18:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 10:18:29,611 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-12-21 10:18:29,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:18:29,613 INFO L225 Difference]: With dead ends: 231 [2021-12-21 10:18:29,613 INFO L226 Difference]: Without dead ends: 170 [2021-12-21 10:18:29,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-12-21 10:18:29,614 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 50 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:18:29,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 455 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:18:29,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-12-21 10:18:29,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 166. [2021-12-21 10:18:29,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 142 states have (on average 1.3943661971830985) internal successors, (198), 145 states have internal predecessors, (198), 19 states have call successors, (19), 3 states have call predecessors, (19), 4 states have return successors, (24), 21 states have call predecessors, (24), 18 states have call successors, (24) [2021-12-21 10:18:29,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 241 transitions. [2021-12-21 10:18:29,625 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 241 transitions. Word has length 40 [2021-12-21 10:18:29,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:18:29,626 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 241 transitions. [2021-12-21 10:18:29,626 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:29,626 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 241 transitions. [2021-12-21 10:18:29,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-12-21 10:18:29,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:18:29,632 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:18:29,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 10:18:29,632 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:18:29,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:18:29,632 INFO L85 PathProgramCache]: Analyzing trace with hash 805527648, now seen corresponding path program 1 times [2021-12-21 10:18:29,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:18:29,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467831302] [2021-12-21 10:18:29,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:29,633 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:18:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 10:18:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 10:18:29,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 10:18:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,725 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-21 10:18:29,726 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:18:29,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467831302] [2021-12-21 10:18:29,728 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467831302] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:18:29,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:18:29,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-12-21 10:18:29,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557241095] [2021-12-21 10:18:29,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:18:29,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-21 10:18:29,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:18:29,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-21 10:18:29,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-12-21 10:18:29,732 INFO L87 Difference]: Start difference. First operand 166 states and 241 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:29,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:18:29,796 INFO L93 Difference]: Finished difference Result 216 states and 313 transitions. [2021-12-21 10:18:29,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 10:18:29,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 40 [2021-12-21 10:18:29,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:18:29,798 INFO L225 Difference]: With dead ends: 216 [2021-12-21 10:18:29,800 INFO L226 Difference]: Without dead ends: 161 [2021-12-21 10:18:29,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-12-21 10:18:29,804 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 70 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:18:29,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 526 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:18:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2021-12-21 10:18:29,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 157. [2021-12-21 10:18:29,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 136 states have (on average 1.3676470588235294) internal successors, (186), 139 states have internal predecessors, (186), 16 states have call successors, (16), 3 states have call predecessors, (16), 4 states have return successors, (21), 18 states have call predecessors, (21), 15 states have call successors, (21) [2021-12-21 10:18:29,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 223 transitions. [2021-12-21 10:18:29,826 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 223 transitions. Word has length 40 [2021-12-21 10:18:29,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:18:29,831 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 223 transitions. [2021-12-21 10:18:29,831 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:29,831 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 223 transitions. [2021-12-21 10:18:29,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-21 10:18:29,834 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:18:29,835 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:18:29,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-21 10:18:29,835 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:18:29,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:18:29,836 INFO L85 PathProgramCache]: Analyzing trace with hash 339137576, now seen corresponding path program 1 times [2021-12-21 10:18:29,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:18:29,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1560376470] [2021-12-21 10:18:29,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:29,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:18:29,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 10:18:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 10:18:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 10:18:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 10:18:29,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:18:29,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1560376470] [2021-12-21 10:18:29,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1560376470] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:18:29,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:18:29,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 10:18:29,887 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83872181] [2021-12-21 10:18:29,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:18:29,888 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 10:18:29,889 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:18:29,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 10:18:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 10:18:29,889 INFO L87 Difference]: Start difference. First operand 157 states and 223 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:29,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:18:29,907 INFO L93 Difference]: Finished difference Result 205 states and 295 transitions. [2021-12-21 10:18:29,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 10:18:29,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2021-12-21 10:18:29,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:18:29,909 INFO L225 Difference]: With dead ends: 205 [2021-12-21 10:18:29,909 INFO L226 Difference]: Without dead ends: 163 [2021-12-21 10:18:29,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 10:18:29,910 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 48 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:18:29,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [48 Valid, 299 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:18:29,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2021-12-21 10:18:29,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 137. [2021-12-21 10:18:29,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 120 states have (on average 1.325) internal successors, (159), 121 states have internal predecessors, (159), 12 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (17), 14 states have call predecessors, (17), 11 states have call successors, (17) [2021-12-21 10:18:29,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 188 transitions. [2021-12-21 10:18:29,921 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 188 transitions. Word has length 43 [2021-12-21 10:18:29,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:18:29,921 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 188 transitions. [2021-12-21 10:18:29,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:29,922 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 188 transitions. [2021-12-21 10:18:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-21 10:18:29,926 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:18:29,926 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:18:29,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-21 10:18:29,927 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:18:29,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:18:29,927 INFO L85 PathProgramCache]: Analyzing trace with hash -690232792, now seen corresponding path program 1 times [2021-12-21 10:18:29,927 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:18:29,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837119414] [2021-12-21 10:18:29,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:29,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:18:29,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 10:18:29,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 10:18:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 10:18:29,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:29,975 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 10:18:29,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:18:29,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837119414] [2021-12-21 10:18:29,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837119414] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:18:29,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:18:29,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 10:18:29,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120688277] [2021-12-21 10:18:29,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:18:29,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 10:18:29,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:18:29,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 10:18:29,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 10:18:29,977 INFO L87 Difference]: Start difference. First operand 137 states and 188 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:29,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:18:29,992 INFO L93 Difference]: Finished difference Result 154 states and 209 transitions. [2021-12-21 10:18:29,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-21 10:18:29,992 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-12-21 10:18:29,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:18:29,994 INFO L225 Difference]: With dead ends: 154 [2021-12-21 10:18:29,994 INFO L226 Difference]: Without dead ends: 147 [2021-12-21 10:18:29,994 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 10:18:29,995 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 17 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:18:29,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 300 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:18:29,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-12-21 10:18:30,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 141. [2021-12-21 10:18:30,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 124 states have (on average 1.314516129032258) internal successors, (163), 125 states have internal predecessors, (163), 12 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (17), 14 states have call predecessors, (17), 11 states have call successors, (17) [2021-12-21 10:18:30,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 192 transitions. [2021-12-21 10:18:30,002 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 192 transitions. Word has length 44 [2021-12-21 10:18:30,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:18:30,004 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 192 transitions. [2021-12-21 10:18:30,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:30,004 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 192 transitions. [2021-12-21 10:18:30,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-21 10:18:30,006 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:18:30,006 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:18:30,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-21 10:18:30,006 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:18:30,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:18:30,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1084774570, now seen corresponding path program 1 times [2021-12-21 10:18:30,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:18:30,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187040916] [2021-12-21 10:18:30,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:30,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:18:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:30,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 10:18:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:30,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-21 10:18:30,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:30,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-21 10:18:30,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 10:18:30,055 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 10:18:30,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 10:18:30,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187040916] [2021-12-21 10:18:30,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187040916] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 10:18:30,056 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 10:18:30,056 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 10:18:30,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187647246] [2021-12-21 10:18:30,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 10:18:30,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 10:18:30,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 10:18:30,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 10:18:30,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 10:18:30,058 INFO L87 Difference]: Start difference. First operand 141 states and 192 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:30,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 10:18:30,076 INFO L93 Difference]: Finished difference Result 148 states and 198 transitions. [2021-12-21 10:18:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 10:18:30,076 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44 [2021-12-21 10:18:30,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 10:18:30,077 INFO L225 Difference]: With dead ends: 148 [2021-12-21 10:18:30,077 INFO L226 Difference]: Without dead ends: 141 [2021-12-21 10:18:30,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-21 10:18:30,078 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 5 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-21 10:18:30,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 388 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-21 10:18:30,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2021-12-21 10:18:30,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 137. [2021-12-21 10:18:30,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 120 states have (on average 1.3) internal successors, (156), 121 states have internal predecessors, (156), 12 states have call successors, (12), 3 states have call predecessors, (12), 4 states have return successors, (17), 14 states have call predecessors, (17), 11 states have call successors, (17) [2021-12-21 10:18:30,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 185 transitions. [2021-12-21 10:18:30,086 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 185 transitions. Word has length 44 [2021-12-21 10:18:30,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 10:18:30,086 INFO L470 AbstractCegarLoop]: Abstraction has 137 states and 185 transitions. [2021-12-21 10:18:30,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2021-12-21 10:18:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 185 transitions. [2021-12-21 10:18:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-21 10:18:30,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 10:18:30,087 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-21 10:18:30,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-21 10:18:30,087 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 10:18:30,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 10:18:30,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1335974199, now seen corresponding path program 2 times [2021-12-21 10:18:30,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 10:18:30,088 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914730834] [2021-12-21 10:18:30,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 10:18:30,088 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 10:18:30,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 10:18:30,134 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-21 10:18:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-21 10:18:30,173 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-21 10:18:30,174 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-21 10:18:30,174 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-21 10:18:30,176 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-21 10:18:30,180 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2021-12-21 10:18:30,182 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-21 10:18:30,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 10:18:30 BoogieIcfgContainer [2021-12-21 10:18:30,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-21 10:18:30,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-21 10:18:30,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-21 10:18:30,232 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-21 10:18:30,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 10:18:26" (3/4) ... [2021-12-21 10:18:30,234 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-21 10:18:30,234 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-21 10:18:30,234 INFO L158 Benchmark]: Toolchain (without parser) took 4061.15ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 103.2MB in the beginning and 60.3MB in the end (delta: 43.0MB). Peak memory consumption was 88.6MB. Max. memory is 16.1GB. [2021-12-21 10:18:30,235 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:18:30,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 220.82ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 102.8MB in the beginning and 145.2MB in the end (delta: -42.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-21 10:18:30,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.72ms. Allocated memory is still 174.1MB. Free memory was 145.2MB in the beginning and 143.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:18:30,235 INFO L158 Benchmark]: Boogie Preprocessor took 17.39ms. Allocated memory is still 174.1MB. Free memory was 143.3MB in the beginning and 142.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:18:30,236 INFO L158 Benchmark]: RCFGBuilder took 279.83ms. Allocated memory is still 174.1MB. Free memory was 142.2MB in the beginning and 126.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2021-12-21 10:18:30,236 INFO L158 Benchmark]: TraceAbstraction took 3499.57ms. Allocated memory is still 174.1MB. Free memory was 126.5MB in the beginning and 60.3MB in the end (delta: 66.2MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. [2021-12-21 10:18:30,236 INFO L158 Benchmark]: Witness Printer took 2.61ms. Allocated memory is still 174.1MB. Free memory is still 60.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:18:30,237 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 127.9MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 220.82ms. Allocated memory was 127.9MB in the beginning and 174.1MB in the end (delta: 46.1MB). Free memory was 102.8MB in the beginning and 145.2MB in the end (delta: -42.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.72ms. Allocated memory is still 174.1MB. Free memory was 145.2MB in the beginning and 143.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.39ms. Allocated memory is still 174.1MB. Free memory was 143.3MB in the beginning and 142.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.83ms. Allocated memory is still 174.1MB. Free memory was 142.2MB in the beginning and 126.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3499.57ms. Allocated memory is still 174.1MB. Free memory was 126.5MB in the beginning and 60.3MB in the end (delta: 66.2MB). Peak memory consumption was 67.2MB. Max. memory is 16.1GB. * Witness Printer took 2.61ms. Allocated memory is still 174.1MB. Free memory is still 60.3MB. 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: 17]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 110, overapproximation of bitwiseAnd at line 108. Possible FailurePath: [L226] unsigned int a ; [L227] unsigned int ma = __VERIFIER_nondet_uint(); [L228] signed char ea = __VERIFIER_nondet_char(); [L229] unsigned int b ; [L230] unsigned int mb = __VERIFIER_nondet_uint(); [L231] signed char eb = __VERIFIER_nondet_char(); [L232] unsigned int r_add ; [L233] unsigned int zero ; [L234] int sa ; [L235] int sb ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L240] int tmp___3 ; [L241] int tmp___4 ; [L242] int tmp___5 ; [L243] int tmp___6 ; [L244] int tmp___7 ; [L245] int tmp___8 ; [L246] int tmp___9 ; [L247] int __retres23 ; VAL [ea=0, eb=0] [L251] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L29] COND TRUE ! m [L30] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L251] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0] [L251] zero = base2flt(0, 0) [L252] CALL, EXPR base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=16777215, e=0, res=16777215] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-72057589726183425, __retres4=16777215, e=0, res=16777215] [L252] RET, EXPR base2flt(ma, ea) VAL [base2flt(ma, ea)=-72057589726183425, ea=0, eb=0, ma=16777216, zero=0] [L252] a = base2flt(ma, ea) [L253] CALL, EXPR base2flt(mb, eb) VAL [\old(e)=0, \old(m)=16777216] [L25] unsigned int res ; [L26] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L29] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L35] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L57] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L59] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L76] m = m & ~ (1U << 24U) [L77] res = m | ((unsigned int )(e + 128) << 24U) [L78] __retres4 = res VAL [\old(e)=0, \old(m)=16777216, __retres4=4294967295, e=0, res=4294967295] [L80] return (__retres4); VAL [\old(e)=0, \old(m)=16777216, \result=-72057589742960641, __retres4=4294967295, e=0, res=4294967295] [L253] RET, EXPR base2flt(mb, eb) VAL [a=16777215, base2flt(mb, eb)=-72057589742960641, ea=0, eb=0, ma=16777216, mb=16777216, zero=0] [L253] b = base2flt(mb, eb) [L255] COND FALSE !(a < zero) VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, zero=0] [L258] COND TRUE a > zero [L259] tmp = 1 VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, tmp=1, zero=0] [L263] sa = tmp VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, sa=1, tmp=1, zero=0] [L265] COND FALSE !(b < zero) VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, sa=1, tmp=1, zero=0] [L268] COND TRUE b > zero [L269] tmp___0 = 1 VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, sa=1, tmp=1, tmp___0=1, zero=0] [L273] sb = tmp___0 VAL [a=16777215, b=4294967295, ea=0, eb=0, ma=16777216, mb=16777216, sa=1, sb=1, tmp=1, tmp___0=1, zero=0] [L276] CALL addflt(a, b) [L84] unsigned int res ; [L85] unsigned int ma ; [L86] unsigned int mb ; [L87] unsigned int delta ; [L88] int ea ; [L89] int eb ; [L90] unsigned int tmp ; [L91] unsigned int __retres10 ; VAL [\old(a)=16777215, \old(b)=4294967295, a=16777215, b=4294967295] [L94] COND TRUE a < b [L95] tmp = a [L96] a = b [L97] b = tmp VAL [\old(a)=16777215, \old(b)=4294967295, a=4294967295, b=16777215, tmp=16777215] [L101] COND FALSE !(! b) [L108] ma = a & ((1U << 24U) - 1U) [L109] ea = (int )(a >> 24U) - 128 [L110] ma = ma | (1U << 24U) [L111] mb = b & ((1U << 24U) - 1U) [L112] eb = (int )(b >> 24U) - 128 [L113] mb = mb | (1U << 24U) VAL [\old(a)=16777215, \old(b)=4294967295, a=4294967295, b=16777215, ea=127, eb=128, tmp=16777215] [L114] CALL __VERIFIER_assert(ea >= eb) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L17] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 8, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 861 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 848 mSDsluCounter, 4662 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3887 mSDsCounter, 100 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 968 IncrementalHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 100 mSolverCounterUnsat, 775 mSDtfsCounter, 968 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 249 GetRequests, 172 SyntacticMatches, 2 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=3, InterpolantAutomatonStates: 64, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 216 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 391 NumberOfCodeBlocks, 391 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 404 ConstructedInterpolants, 0 QuantifiedInterpolants, 827 SizeOfPredicates, 11 NumberOfNonLiveVariables, 256 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 11 InterpolantComputations, 5 PerfectInterpolantSequences, 128/165 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 10:18:30,256 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/bitvector/soft_float_1-3a.c.cil.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 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 10:18:32,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 10:18:32,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 10:18:32,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 10:18:32,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 10:18:32,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 10:18:32,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 10:18:32,132 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 10:18:32,134 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 10:18:32,139 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 10:18:32,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 10:18:32,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 10:18:32,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 10:18:32,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 10:18:32,146 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 10:18:32,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 10:18:32,149 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 10:18:32,150 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 10:18:32,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 10:18:32,153 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 10:18:32,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 10:18:32,157 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 10:18:32,157 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 10:18:32,158 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 10:18:32,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 10:18:32,161 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 10:18:32,161 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 10:18:32,162 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 10:18:32,162 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 10:18:32,163 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 10:18:32,163 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 10:18:32,164 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 10:18:32,165 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 10:18:32,165 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 10:18:32,166 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 10:18:32,166 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 10:18:32,167 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 10:18:32,167 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 10:18:32,167 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 10:18:32,168 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 10:18:32,169 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 10:18:32,172 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-21 10:18:32,197 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 10:18:32,198 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 10:18:32,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 10:18:32,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 10:18:32,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 10:18:32,200 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 10:18:32,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 10:18:32,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 10:18:32,201 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 10:18:32,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 10:18:32,202 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-21 10:18:32,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-21 10:18:32,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 10:18:32,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 10:18:32,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 10:18:32,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 10:18:32,202 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-21 10:18:32,203 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-21 10:18:32,203 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-21 10:18:32,203 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-21 10:18:32,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 10:18:32,203 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 10:18:32,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 10:18:32,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 10:18:32,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 10:18:32,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 10:18:32,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:18:32,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 10:18:32,211 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 10:18:32,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 10:18:32,212 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-21 10:18:32,212 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-21 10:18:32,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 10:18:32,212 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 10:18:32,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 10:18:32,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 10:18:32,213 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-21 10:18:32,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2e6e06de31959e386aafc2fb45c848364ae9fea32df4ba40928c607f134f313f [2021-12-21 10:18:32,456 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 10:18:32,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 10:18:32,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 10:18:32,481 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 10:18:32,481 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 10:18:32,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-12-21 10:18:32,526 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a044a5538/99a23bf75cce4da88c84bdd7e0386c6b/FLAGfb990f004 [2021-12-21 10:18:32,929 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 10:18:32,930 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-3a.c.cil.c [2021-12-21 10:18:32,936 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a044a5538/99a23bf75cce4da88c84bdd7e0386c6b/FLAGfb990f004 [2021-12-21 10:18:32,951 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a044a5538/99a23bf75cce4da88c84bdd7e0386c6b [2021-12-21 10:18:32,954 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 10:18:32,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 10:18:32,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 10:18:32,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 10:18:32,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 10:18:32,960 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:18:32" (1/1) ... [2021-12-21 10:18:32,961 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2308d2b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:32, skipping insertion in model container [2021-12-21 10:18:32,962 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 10:18:32" (1/1) ... [2021-12-21 10:18:32,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 10:18:33,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 10:18:33,125 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/bitvector/soft_float_1-3a.c.cil.c[730,743] [2021-12-21 10:18:33,211 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:18:33,225 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 10:18:33,234 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/bitvector/soft_float_1-3a.c.cil.c[730,743] [2021-12-21 10:18:33,254 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 10:18:33,270 INFO L208 MainTranslator]: Completed translation [2021-12-21 10:18:33,270 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33 WrapperNode [2021-12-21 10:18:33,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 10:18:33,271 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 10:18:33,272 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 10:18:33,272 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 10:18:33,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,295 INFO L137 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 145 [2021-12-21 10:18:33,295 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 10:18:33,296 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 10:18:33,296 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 10:18:33,296 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 10:18:33,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,304 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,304 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 10:18:33,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 10:18:33,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 10:18:33,317 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 10:18:33,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 10:18:33" (1/1) ... [2021-12-21 10:18:33,333 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 10:18:33,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 10:18:33,355 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 10:18:33,360 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 10:18:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 10:18:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-21 10:18:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2021-12-21 10:18:33,381 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2021-12-21 10:18:33,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 10:18:33,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 10:18:33,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-21 10:18:33,382 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-21 10:18:33,460 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 10:18:33,461 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 10:18:33,544 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$BitvectorOperation.simplifiedResult(BitvectorUtils.java:286) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.BitvectorUtils.termWithLocalSimplification(BitvectorUtils.java:217) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.termWithLocalSimplification(SmtUtils.java:1490) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateFunctionApplication(Expression2Term.java:405) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translate(Expression2Term.java:258) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Expression2Term.translateToTerm(Expression2Term.java:120) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.addAssignment(Statements2TransFormula.java:288) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Statements2TransFormula.statementSequence(Statements2TransFormula.java:703) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.util.TransFormulaAdder.addTransitionFormulas(TransFormulaAdder.java:119) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$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$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-21 10:18:33,547 INFO L158 Benchmark]: Toolchain (without parser) took 590.56ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.3MB in the beginning and 41.6MB in the end (delta: -12.3MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-12-21 10:18:33,547 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-21 10:18:33,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.85ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.0MB in the beginning and 52.9MB in the end (delta: -23.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2021-12-21 10:18:33,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.29ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 51.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:18:33,549 INFO L158 Benchmark]: Boogie Preprocessor took 19.70ms. Allocated memory is still 73.4MB. Free memory was 51.0MB in the beginning and 49.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-21 10:18:33,549 INFO L158 Benchmark]: RCFGBuilder took 229.60ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 41.6MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-21 10:18:33,551 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 34.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.85ms. Allocated memory was 52.4MB in the beginning and 73.4MB in the end (delta: 21.0MB). Free memory was 29.0MB in the beginning and 52.9MB in the end (delta: -23.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.29ms. Allocated memory is still 73.4MB. Free memory was 52.9MB in the beginning and 51.0MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.70ms. Allocated memory is still 73.4MB. Free memory was 51.0MB in the beginning and 49.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 229.60ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 41.6MB in the end (delta: 7.7MB). Peak memory consumption was 6.3MB. 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 10:18:33,577 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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Not a regular bitvector operator with bitvector result: bvshl