/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/nla-digbench/geo1-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:08:44,670 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:08:44,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:08:44,709 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:08:44,710 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:08:44,711 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:08:44,712 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:08:44,720 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:08:44,722 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:08:44,726 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:08:44,727 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:08:44,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:08:44,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:08:44,733 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:08:44,734 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:08:44,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:08:44,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:08:44,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:08:44,739 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:08:44,745 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:08:44,746 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:08:44,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:08:44,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:08:44,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:08:44,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:08:44,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:08:44,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:08:44,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:08:44,755 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:08:44,756 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:08:44,756 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:08:44,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:08:44,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:08:44,758 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:08:44,759 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:08:44,759 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:08:44,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:08:44,760 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:08:44,760 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:08:44,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:08:44,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:08:44,765 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 23:08:44,798 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:08:44,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:08:44,799 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:08:44,799 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:08:44,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:08:44,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:08:44,800 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:08:44,800 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:08:44,800 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:08:44,801 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:08:44,801 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:08:44,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:08:44,801 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:08:44,802 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:08:44,802 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:08:44,802 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:08:44,802 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:08:44,802 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:08:44,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:08:44,803 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:08:44,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:08:44,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:08:44,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:08:44,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:08:44,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:08:44,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:08:44,804 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:08:44,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:08:44,804 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:08:44,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:08:44,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:08:44,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:08:44,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:08:44,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:08:44,805 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:08:44,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:08:44,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:08:44,805 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:08:44,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:08:44,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:08:44,805 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:08:44,806 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:08:45,023 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:08:45,041 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:08:45,043 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:08:45,044 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:08:45,045 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:08:45,046 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench/geo1-u.c [2023-03-31 23:08:46,144 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:08:46,308 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:08:46,308 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/geo1-u.c [2023-03-31 23:08:46,313 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff74ae82/98031ca3fef7475281784cfb33060d28/FLAGc03754e4d [2023-03-31 23:08:46,327 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dff74ae82/98031ca3fef7475281784cfb33060d28 [2023-03-31 23:08:46,329 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:08:46,330 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:08:46,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:08:46,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:08:46,337 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:08:46,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,338 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51bb99a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46, skipping insertion in model container [2023-03-31 23:08:46,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,344 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:08:46,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:08:46,456 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/geo1-u.c[555,568] [2023-03-31 23:08:46,466 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:08:46,473 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:08:46,481 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench/geo1-u.c[555,568] [2023-03-31 23:08:46,485 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:08:46,496 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:08:46,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46 WrapperNode [2023-03-31 23:08:46,497 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:08:46,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:08:46,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:08:46,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:08:46,507 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,515 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,519 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,521 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:08:46,521 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:08:46,521 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:08:46,521 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:08:46,522 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (1/1) ... [2023-03-31 23:08:46,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:08:46,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:08:46,553 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) [2023-03-31 23:08:46,560 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 [2023-03-31 23:08:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:08:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:08:46,595 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:08:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 23:08:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 23:08:46,596 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:08:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:08:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:08:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:08:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:08:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-03-31 23:08:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 23:08:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 23:08:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:08:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:08:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:08:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:08:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:08:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:08:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:08:46,648 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:08:46,650 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:08:46,781 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:08:46,818 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:08:46,818 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 23:08:46,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:08:46 BoogieIcfgContainer [2023-03-31 23:08:46,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:08:46,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:08:46,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:08:46,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:08:46,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:08:46" (1/3) ... [2023-03-31 23:08:46,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cdaffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:08:46, skipping insertion in model container [2023-03-31 23:08:46,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:46" (2/3) ... [2023-03-31 23:08:46,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79cdaffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:08:46, skipping insertion in model container [2023-03-31 23:08:46,841 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:08:46" (3/3) ... [2023-03-31 23:08:46,843 INFO L112 eAbstractionObserver]: Analyzing ICFG geo1-u.c [2023-03-31 23:08:46,860 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:08:46,860 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:08:46,895 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:08:46,900 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@33807d4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:08:46,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:08:46,903 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-31 23:08:46,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-03-31 23:08:46,907 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:08:46,908 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:08:46,908 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:08:46,912 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:08:46,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1391987672, now seen corresponding path program 1 times [2023-03-31 23:08:46,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:08:46,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115494814] [2023-03-31 23:08:46,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:08:46,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:08:46,996 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-31 23:08:46,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [960126842] [2023-03-31 23:08:46,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:08:46,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:08:46,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:08:47,003 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) [2023-03-31 23:08:47,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 23:08:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:08:47,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjunts are in the unsatisfiable core [2023-03-31 23:08:47,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:08:47,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:08:47,187 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:08:47,187 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:08:47,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115494814] [2023-03-31 23:08:47,187 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-31 23:08:47,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960126842] [2023-03-31 23:08:47,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960126842] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:08:47,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:08:47,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 23:08:47,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702343645] [2023-03-31 23:08:47,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:08:47,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 23:08:47,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:08:47,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 23:08:47,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 23:08:47,243 INFO L87 Difference]: Start difference. First operand has 20 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 23:08:47,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:08:47,354 INFO L93 Difference]: Finished difference Result 43 states and 55 transitions. [2023-03-31 23:08:47,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-03-31 23:08:47,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2023-03-31 23:08:47,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:08:47,365 INFO L225 Difference]: With dead ends: 43 [2023-03-31 23:08:47,366 INFO L226 Difference]: Without dead ends: 24 [2023-03-31 23:08:47,369 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:08:47,373 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 6 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:08:47,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 51 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:08:47,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-03-31 23:08:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2023-03-31 23:08:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 15 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 23:08:47,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2023-03-31 23:08:47,414 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 10 [2023-03-31 23:08:47,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:08:47,414 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2023-03-31 23:08:47,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 23:08:47,415 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2023-03-31 23:08:47,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-03-31 23:08:47,416 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:08:47,416 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:08:47,422 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-03-31 23:08:47,620 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-03-31 23:08:47,622 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:08:47,623 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:08:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash 833621893, now seen corresponding path program 1 times [2023-03-31 23:08:47,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:08:47,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182202897] [2023-03-31 23:08:47,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:08:47,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:08:47,646 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-31 23:08:47,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [242637455] [2023-03-31 23:08:47,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:08:47,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:08:47,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:08:47,648 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) [2023-03-31 23:08:47,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 23:08:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 23:08:47,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-31 23:08:47,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-31 23:08:47,764 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2023-03-31 23:08:47,764 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-31 23:08:47,765 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:08:47,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 23:08:47,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-03-31 23:08:47,978 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 23:08:47,981 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:08:47,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:08:47 BoogieIcfgContainer [2023-03-31 23:08:47,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:08:47,996 INFO L158 Benchmark]: Toolchain (without parser) took 1665.54ms. Allocated memory is still 299.9MB. Free memory was 252.2MB in the beginning and 263.7MB in the end (delta: -11.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:08:47,996 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:08:47,997 INFO L158 Benchmark]: CACSL2BoogieTranslator took 163.97ms. Allocated memory is still 299.9MB. Free memory was 252.2MB in the beginning and 241.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 23:08:47,997 INFO L158 Benchmark]: Boogie Preprocessor took 22.80ms. Allocated memory is still 299.9MB. Free memory was 241.8MB in the beginning and 240.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 23:08:47,999 INFO L158 Benchmark]: RCFGBuilder took 299.13ms. Allocated memory is still 299.9MB. Free memory was 240.4MB in the beginning and 228.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-31 23:08:47,999 INFO L158 Benchmark]: TraceAbstraction took 1173.12ms. Allocated memory is still 299.9MB. Free memory was 227.8MB in the beginning and 263.7MB in the end (delta: -35.8MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:08:48,001 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 179.3MB. Free memory is still 130.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 163.97ms. Allocated memory is still 299.9MB. Free memory was 252.2MB in the beginning and 241.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.80ms. Allocated memory is still 299.9MB. Free memory was 241.8MB in the beginning and 240.4MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 299.13ms. Allocated memory is still 299.9MB. Free memory was 240.4MB in the beginning and 228.5MB in the end (delta: 11.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1173.12ms. Allocated memory is still 299.9MB. Free memory was 227.8MB in the beginning and 263.7MB in the end (delta: -35.8MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L26] k = __VERIFIER_nondet_uint() [L28] x = 1 [L29] y = z [L30] c = 1 VAL [c=1, x=1, y=0, z=0] [L32] COND TRUE 1 VAL [c=1, x=1, y=0, z=0] [L33] CALL __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [\old(cond)=1] [L16] COND FALSE !(!(cond)) VAL [\old(cond)=1, cond=1] [L33] RET __VERIFIER_assert(x*z - x - y + 1 == 0) VAL [c=1, x=1, y=0, z=0] [L35] COND TRUE !(c < k) VAL [c=1, k=0, x=1, y=0, z=0] [L44] x = x * (z - 1) VAL [c=1, k=0, x=4294967295, y=0, z=0] [L46] CALL __VERIFIER_assert(1 + x - y == 0) VAL [\old(cond)=0] [L16] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L18] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 51 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 14 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=1, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 29 SizeOfPredicates, 1 NumberOfNonLiveVariables, 56 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-03-31 23:08:48,016 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...