/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 EqDomain -i ../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 11:14:41,271 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 11:14:41,273 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 11:14:41,301 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 11:14:41,301 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 11:14:41,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 11:14:41,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 11:14:41,308 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 11:14:41,309 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 11:14:41,312 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 11:14:41,313 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 11:14:41,314 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 11:14:41,314 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 11:14:41,316 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 11:14:41,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 11:14:41,318 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 11:14:41,318 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 11:14:41,319 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 11:14:41,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 11:14:41,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 11:14:41,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 11:14:41,323 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 11:14:41,323 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 11:14:41,324 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 11:14:41,330 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-04-01 11:14:41,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 11:14:41,333 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 11:14:41,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 11:14:41,334 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 11:14:41,335 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 11:14:41,335 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 11:14:41,335 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 11:14:41,335 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 11:14:41,335 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 11:14:41,336 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 11:14:41,337 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 11:14:41,337 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 [2023-04-01 11:14:41,361 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 11:14:41,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 11:14:41,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 11:14:41,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 11:14:41,362 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 11:14:41,362 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 11:14:41,363 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 11:14:41,363 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 11:14:41,363 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 11:14:41,363 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 11:14:41,363 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 11:14:41,363 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 11:14:41,364 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 11:14:41,364 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 11:14:41,364 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 11:14:41,364 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 11:14:41,364 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 11:14:41,364 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 11:14:41,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 11:14:41,364 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 11:14:41,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 11:14:41,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 11:14:41,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 11:14:41,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:14:41,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 11:14:41,366 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 11:14:41,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 11:14:41,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 11:14:41,366 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 11:14:41,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 11:14:41,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 11:14:41,366 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 11:14:41,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-04-01 11:14:41,544 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 11:14:41,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 11:14:41,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 11:14:41,565 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 11:14:41,567 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 11:14:41,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c [2023-04-01 11:14:42,602 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 11:14:42,710 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 11:14:42,711 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound5.c [2023-04-01 11:14:42,715 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1a6015f/fec50ff864e84da5acaeee17bc7a43b6/FLAG0ea733418 [2023-04-01 11:14:42,727 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c1a6015f/fec50ff864e84da5acaeee17bc7a43b6 [2023-04-01 11:14:42,729 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 11:14:42,730 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 11:14:42,731 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 11:14:42,731 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 11:14:42,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 11:14:42,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d823fb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42, skipping insertion in model container [2023-04-01 11:14:42,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 11:14:42,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 11:14:42,854 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-scaling/bresenham-ll_valuebound5.c[597,610] [2023-04-01 11:14:42,871 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:14:42,878 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 11:14:42,886 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-scaling/bresenham-ll_valuebound5.c[597,610] [2023-04-01 11:14:42,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 11:14:42,899 INFO L208 MainTranslator]: Completed translation [2023-04-01 11:14:42,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42 WrapperNode [2023-04-01 11:14:42,899 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 11:14:42,900 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 11:14:42,900 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 11:14:42,900 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 11:14:42,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,912 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,930 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,931 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 11:14:42,932 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 11:14:42,932 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 11:14:42,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 11:14:42,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (1/1) ... [2023-04-01 11:14:42,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 11:14:42,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:14:42,953 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) [2023-04-01 11:14:42,955 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 [2023-04-01 11:14:42,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 11:14:42,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 11:14:42,989 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 11:14:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 11:14:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 11:14:42,991 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 11:14:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 11:14:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 11:14:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 11:14:42,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 11:14:42,992 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 11:14:43,037 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 11:14:43,039 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 11:14:43,147 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 11:14:43,189 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 11:14:43,190 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 11:14:43,191 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:14:43 BoogieIcfgContainer [2023-04-01 11:14:43,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 11:14:43,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 11:14:43,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 11:14:43,195 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 11:14:43,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 11:14:42" (1/3) ... [2023-04-01 11:14:43,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4965028f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:14:43, skipping insertion in model container [2023-04-01 11:14:43,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 11:14:42" (2/3) ... [2023-04-01 11:14:43,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4965028f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 11:14:43, skipping insertion in model container [2023-04-01 11:14:43,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 11:14:43" (3/3) ... [2023-04-01 11:14:43,197 INFO L112 eAbstractionObserver]: Analyzing ICFG bresenham-ll_valuebound5.c [2023-04-01 11:14:43,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 11:14:43,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 11:14:43,241 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 11:14:43,245 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;@6ae5c4f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 11:14:43,245 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 11:14:43,250 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-01 11:14:43,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-04-01 11:14:43,257 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:14:43,257 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:14:43,258 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:14:43,263 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:14:43,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1616975528, now seen corresponding path program 1 times [2023-04-01 11:14:43,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:14:43,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345414541] [2023-04-01 11:14:43,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:14:43,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:14:43,389 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:14:43,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [137153408] [2023-04-01 11:14:43,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:14:43,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:14:43,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:14:43,393 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) [2023-04-01 11:14:43,428 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 11:14:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:14:43,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-01 11:14:43,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:14:43,613 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 11:14:43,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 11:14:43,614 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:14:43,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345414541] [2023-04-01 11:14:43,614 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 11:14:43,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [137153408] [2023-04-01 11:14:43,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [137153408] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 11:14:43,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 11:14:43,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 11:14:43,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044511224] [2023-04-01 11:14:43,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 11:14:43,619 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 11:14:43,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:14:43,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 11:14:43,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-04-01 11:14:43,645 INFO L87 Difference]: Start difference. First operand has 26 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 11:14:43,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:14:43,743 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2023-04-01 11:14:43,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 11:14:43,746 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 18 [2023-04-01 11:14:43,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:14:43,751 INFO L225 Difference]: With dead ends: 52 [2023-04-01 11:14:43,751 INFO L226 Difference]: Without dead ends: 29 [2023-04-01 11:14:43,754 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 11:14:43,758 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 11 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:14:43,759 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 71 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:14:43,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-04-01 11:14:43,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-04-01 11:14:43,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-01 11:14:43,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2023-04-01 11:14:43,784 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 18 [2023-04-01 11:14:43,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:14:43,785 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2023-04-01 11:14:43,785 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 11:14:43,785 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2023-04-01 11:14:43,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-04-01 11:14:43,786 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:14:43,786 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:14:43,791 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-01 11:14:43,987 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 [2023-04-01 11:14:43,987 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:14:43,988 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:14:43,988 INFO L85 PathProgramCache]: Analyzing trace with hash 216739922, now seen corresponding path program 1 times [2023-04-01 11:14:43,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:14:43,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520737295] [2023-04-01 11:14:43,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:14:43,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:14:44,017 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:14:44,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771731406] [2023-04-01 11:14:44,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:14:44,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:14:44,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:14:44,022 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) [2023-04-01 11:14:44,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 11:14:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:14:44,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 37 conjunts are in the unsatisfiable core [2023-04-01 11:14:44,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:14:44,417 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 11:14:44,417 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:14:44,621 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-04-01 11:14:44,623 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:14:44,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520737295] [2023-04-01 11:14:44,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 11:14:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771731406] [2023-04-01 11:14:44,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771731406] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 11:14:44,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1850851570] [2023-04-01 11:14:44,664 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-04-01 11:14:44,664 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 11:14:44,667 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 11:14:44,670 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 11:14:44,670 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 11:14:44,756 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 43 for LOIs [2023-04-01 11:14:45,733 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2023-04-01 11:14:45,792 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2023-04-01 11:14:45,853 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 81 for LOIs [2023-04-01 11:14:46,010 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 43 for LOIs [2023-04-01 11:14:46,014 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 11:14:46,017 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 11:14:46,735 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '368#(and (= (select |#length| 3) 12) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (not (= |#StackHeapBarrier| 0)) (= (select |#valid| 1) 1) (= 15 (select |#length| 2)) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select (select |#memory_int| 1) 0) 48) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0))' at error location [2023-04-01 11:14:46,735 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 11:14:46,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-01 11:14:46,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 17 [2023-04-01 11:14:46,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405496234] [2023-04-01 11:14:46,736 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-01 11:14:46,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-01 11:14:46,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:14:46,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-01 11:14:46,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=658, Unknown=0, NotChecked=0, Total=756 [2023-04-01 11:14:46,738 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 17 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 15 states have internal predecessors, (23), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 11:14:46,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:14:46,973 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2023-04-01 11:14:46,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-04-01 11:14:46,974 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 15 states have internal predecessors, (23), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) Word has length 25 [2023-04-01 11:14:46,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:14:46,974 INFO L225 Difference]: With dead ends: 40 [2023-04-01 11:14:46,974 INFO L226 Difference]: Without dead ends: 36 [2023-04-01 11:14:46,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 47 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=141, Invalid=915, Unknown=0, NotChecked=0, Total=1056 [2023-04-01 11:14:46,976 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 35 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 11:14:46,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 66 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 11:14:46,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2023-04-01 11:14:46,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 31. [2023-04-01 11:14:46,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-01 11:14:46,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 32 transitions. [2023-04-01 11:14:46,982 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 32 transitions. Word has length 25 [2023-04-01 11:14:46,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:14:46,982 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 32 transitions. [2023-04-01 11:14:46,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 15 states have internal predecessors, (23), 5 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 11:14:46,982 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 32 transitions. [2023-04-01 11:14:46,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-04-01 11:14:46,983 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 11:14:46,983 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 11:14:46,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 11:14:47,183 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 [2023-04-01 11:14:47,184 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 11:14:47,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 11:14:47,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1361737171, now seen corresponding path program 1 times [2023-04-01 11:14:47,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 11:14:47,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116495334] [2023-04-01 11:14:47,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:14:47,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 11:14:47,206 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-04-01 11:14:47,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [541505813] [2023-04-01 11:14:47,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 11:14:47,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:14:47,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 11:14:47,210 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 11:14:47,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 11:14:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 11:14:47,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 39 conjunts are in the unsatisfiable core [2023-04-01 11:14:47,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 11:14:47,620 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-01 11:14:47,620 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 11:14:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-04-01 11:14:47,856 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 11:14:47,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116495334] [2023-04-01 11:14:47,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-04-01 11:14:47,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541505813] [2023-04-01 11:14:47,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541505813] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 11:14:47,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [290821235] [2023-04-01 11:14:47,857 INFO L159 IcfgInterpreter]: Started Sifa with 22 locations of interest [2023-04-01 11:14:47,857 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 11:14:47,857 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 11:14:47,858 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 11:14:47,858 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 11:14:47,878 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 43 for LOIs [2023-04-01 11:14:48,417 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2023-04-01 11:14:48,459 WARN L137 XnfTransformerHelper]: expecting exponential blowup for input size 8 [2023-04-01 11:14:48,526 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-04-01 11:14:48,528 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 43 for LOIs [2023-04-01 11:14:48,530 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-04-01 11:14:48,532 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 11:14:49,318 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '704#(and (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0))' at error location [2023-04-01 11:14:49,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 11:14:49,318 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-04-01 11:14:49,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10] total 22 [2023-04-01 11:14:49,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640169198] [2023-04-01 11:14:49,318 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-04-01 11:14:49,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-04-01 11:14:49,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 11:14:49,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-04-01 11:14:49,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=936, Unknown=0, NotChecked=0, Total=1056 [2023-04-01 11:14:49,320 INFO L87 Difference]: Start difference. First operand 31 states and 32 transitions. Second operand has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 7 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-01 11:14:49,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 11:14:49,957 INFO L93 Difference]: Finished difference Result 42 states and 45 transitions. [2023-04-01 11:14:49,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-04-01 11:14:49,958 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 7 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) Word has length 32 [2023-04-01 11:14:49,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 11:14:49,958 INFO L225 Difference]: With dead ends: 42 [2023-04-01 11:14:49,958 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 11:14:49,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 509 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=264, Invalid=1628, Unknown=0, NotChecked=0, Total=1892 [2023-04-01 11:14:49,960 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 30 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-04-01 11:14:49,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 75 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-04-01 11:14:49,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 11:14:49,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 11:14:49,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-01 11:14:49,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 11:14:49,961 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2023-04-01 11:14:49,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 11:14:49,961 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 11:14:49,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 1.8235294117647058) internal successors, (31), 18 states have internal predecessors, (31), 7 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (9), 6 states have call predecessors, (9), 5 states have call successors, (9) [2023-04-01 11:14:49,961 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 11:14:49,961 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 11:14:49,963 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 11:14:49,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 11:14:50,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 11:14:50,169 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 11:14:50,603 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 7) no Hoare annotation was computed. [2023-04-01 11:14:50,606 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 7) no Hoare annotation was computed. [2023-04-01 11:14:50,606 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 10 12) the Hoare annotation is: true [2023-04-01 11:14:50,608 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 10 12) no Hoare annotation was computed. [2023-04-01 11:14:50,608 INFO L895 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: (and (<= 0 main_~X~0) (<= main_~X~0 5)) [2023-04-01 11:14:50,608 INFO L899 garLoopResultBuilder]: For program point L27-1(line 27) no Hoare annotation was computed. [2023-04-01 11:14:50,608 INFO L902 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: true [2023-04-01 11:14:50,608 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 21 53) no Hoare annotation was computed. [2023-04-01 11:14:50,608 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-04-01 11:14:50,609 INFO L895 garLoopResultBuilder]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (* main_~Y~0 2))) (or (let ((.cse2 (* main_~y~0 2)) (.cse1 (* 2 (* main_~Y~0 main_~x~0)))) (and (= (+ .cse0 .cse1) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= 0 main_~Y~0) (= (+ .cse2 .cse0 (* 2 main_~yx~0)) (+ (* 2 main_~xy~0) main_~X~0 main_~v~0)) (<= 0 main_~X~0) (<= main_~X~0 5) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ .cse2 .cse0 .cse1)) (<= main_~Y~0 5))) (and (= main_~x~0 0) (= main_~xy~0 0) (= (+ main_~X~0 main_~v~0) .cse0) (= main_~y~0 0) (= main_~yx~0 0)))) [2023-04-01 11:14:50,609 INFO L899 garLoopResultBuilder]: For program point L50-1(line 50) no Hoare annotation was computed. [2023-04-01 11:14:50,609 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 21 53) the Hoare annotation is: true [2023-04-01 11:14:50,609 INFO L895 garLoopResultBuilder]: At program point L32-2(lines 32 47) the Hoare annotation is: (let ((.cse0 (* main_~Y~0 2)) (.cse1 (* 2 (* main_~Y~0 main_~x~0)))) (and (= (+ .cse0 .cse1) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= 0 main_~Y~0) (or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) .cse0 .cse1))) (<= 0 main_~X~0) (<= main_~X~0 5) (<= main_~Y~0 5))) [2023-04-01 11:14:50,609 INFO L899 garLoopResultBuilder]: For program point L32-3(lines 32 47) no Hoare annotation was computed. [2023-04-01 11:14:50,609 INFO L895 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (let ((.cse0 (* main_~Y~0 2)) (.cse1 (* 2 (* main_~Y~0 main_~x~0)))) (and (= (+ (* 2 main_~xy~0) main_~X~0 main_~v~0) (+ .cse0 (* 2 main_~yx~0))) (= (+ .cse0 .cse1) (+ (* (* main_~X~0 main_~y~0) 2) main_~X~0 main_~v~0)) (<= 0 main_~Y~0) (or (<= main_~x~0 main_~X~0) (= (+ (* 2 (* main_~y~0 main_~x~0)) main_~X~0 main_~v~0) (+ (* main_~y~0 2) .cse0 .cse1))) (<= 0 main_~X~0) (<= main_~X~0 5) (<= main_~Y~0 5))) [2023-04-01 11:14:50,610 INFO L899 garLoopResultBuilder]: For program point L35-1(lines 32 47) no Hoare annotation was computed. [2023-04-01 11:14:50,610 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 11:14:50,610 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 11:14:50,610 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 11:14:50,610 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-01 11:14:50,610 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 11:14:50,610 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 11:14:50,610 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 16) no Hoare annotation was computed. [2023-04-01 11:14:50,610 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 17) no Hoare annotation was computed. [2023-04-01 11:14:50,610 INFO L899 garLoopResultBuilder]: For program point L14-2(lines 13 19) no Hoare annotation was computed. [2023-04-01 11:14:50,610 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 13 19) no Hoare annotation was computed. [2023-04-01 11:14:50,610 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 13 19) the Hoare annotation is: true [2023-04-01 11:14:50,610 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2023-04-01 11:14:50,612 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-04-01 11:14:50,614 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 11:14:50,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 11:14:50 BoogieIcfgContainer [2023-04-01 11:14:50,627 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 11:14:50,627 INFO L158 Benchmark]: Toolchain (without parser) took 7897.23ms. Allocated memory was 197.1MB in the beginning and 361.8MB in the end (delta: 164.6MB). Free memory was 144.0MB in the beginning and 123.5MB in the end (delta: 20.4MB). Peak memory consumption was 186.6MB. Max. memory is 8.0GB. [2023-04-01 11:14:50,627 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 197.1MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 11:14:50,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.54ms. Allocated memory is still 197.1MB. Free memory was 144.0MB in the beginning and 133.1MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-01 11:14:50,628 INFO L158 Benchmark]: Boogie Preprocessor took 31.75ms. Allocated memory is still 197.1MB. Free memory was 133.1MB in the beginning and 131.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-01 11:14:50,628 INFO L158 Benchmark]: RCFGBuilder took 259.28ms. Allocated memory is still 197.1MB. Free memory was 131.7MB in the beginning and 118.1MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-04-01 11:14:50,630 INFO L158 Benchmark]: TraceAbstraction took 7434.17ms. Allocated memory was 197.1MB in the beginning and 361.8MB in the end (delta: 164.6MB). Free memory was 117.4MB in the beginning and 123.5MB in the end (delta: -6.2MB). Peak memory consumption was 159.3MB. Max. memory is 8.0GB. [2023-04-01 11:14:50,631 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 197.1MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 168.54ms. Allocated memory is still 197.1MB. Free memory was 144.0MB in the beginning and 133.1MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 31.75ms. Allocated memory is still 197.1MB. Free memory was 133.1MB in the beginning and 131.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 259.28ms. Allocated memory is still 197.1MB. Free memory was 131.7MB in the beginning and 118.1MB in the end (delta: 13.7MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 7434.17ms. Allocated memory was 197.1MB in the beginning and 361.8MB in the end (delta: 164.6MB). Free memory was 117.4MB in the beginning and 123.5MB in the end (delta: -6.2MB). Peak memory consumption was 159.3MB. 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 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.4s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 77 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 76 mSDsluCounter, 212 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 172 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 444 IncrementalHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 40 mSDtfsCounter, 444 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 206 GetRequests, 125 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred in iteration=2, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 20 PreInvPairs, 31 NumberOfFragments, 230 HoareAnnotationTreeSize, 20 FomulaSimplifications, 301 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 724 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 75 NumberOfCodeBlocks, 75 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 127 ConstructedInterpolants, 0 QuantifiedInterpolants, 929 SizeOfPredicates, 20 NumberOfNonLiveVariables, 291 ConjunctsInSsa, 92 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 30/40 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: ((((Y * 2 + 2 * (Y * x) == X * y * 2 + X + v && 0 <= Y) && (x <= X || 2 * (y * x) + X + v == y * 2 + Y * 2 + 2 * (Y * x))) && 0 <= X) && X <= 5) && Y <= 5 RESULT: Ultimate proved your program to be correct! [2023-04-01 11:14:50,651 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...