/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/array-fpi/ss1f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-30 22:36:19,611 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-30 22:36:19,612 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-30 22:36:19,630 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-30 22:36:19,630 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-30 22:36:19,630 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-30 22:36:19,631 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-30 22:36:19,632 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-30 22:36:19,633 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-30 22:36:19,634 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-30 22:36:19,635 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-30 22:36:19,635 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-30 22:36:19,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-30 22:36:19,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-30 22:36:19,637 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-30 22:36:19,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-30 22:36:19,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-30 22:36:19,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-30 22:36:19,640 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-30 22:36:19,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-30 22:36:19,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-30 22:36:19,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-30 22:36:19,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-30 22:36:19,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-30 22:36:19,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-30 22:36:19,648 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-30 22:36:19,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-30 22:36:19,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-30 22:36:19,649 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-30 22:36:19,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-30 22:36:19,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-30 22:36:19,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-30 22:36:19,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-30 22:36:19,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-30 22:36:19,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-30 22:36:19,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-30 22:36:19,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-30 22:36:19,665 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-30 22:36:19,665 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-30 22:36:19,665 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-30 22:36:19,665 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-30 22:36:19,665 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-30 22:36:19,666 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-30 22:36:19,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-30 22:36:19,666 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-30 22:36:19,666 INFO L138 SettingsManager]: * Use SBE=true [2023-03-30 22:36:19,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-30 22:36:19,666 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-30 22:36:19,667 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-30 22:36:19,667 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-30 22:36:19,667 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-30 22:36:19,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-30 22:36:19,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-30 22:36:19,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-30 22:36:19,667 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-30 22:36:19,667 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-30 22:36:19,668 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-30 22:36:19,668 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-30 22:36:19,668 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-30 22:36:19,668 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-30 22:36:19,668 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-30 22:36:19,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:36:19,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-30 22:36:19,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-30 22:36:19,668 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-30 22:36:19,668 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-30 22:36:19,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-30 22:36:19,669 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-30 22:36:19,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-30 22:36:19,669 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-30 22:36:19,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-30 22:36:19,669 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-30 22:36:19,669 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-30 22:36:19,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-30 22:36:19,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-30 22:36:19,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-30 22:36:19,812 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-30 22:36:19,813 INFO L275 PluginConnector]: CDTParser initialized [2023-03-30 22:36:19,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss1f.c [2023-03-30 22:36:20,765 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-30 22:36:20,959 INFO L351 CDTParser]: Found 1 translation units. [2023-03-30 22:36:20,960 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss1f.c [2023-03-30 22:36:20,970 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86101a6c4/88626df7dcb74ad38fb3e491f5f662da/FLAG96bcd2de3 [2023-03-30 22:36:20,982 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86101a6c4/88626df7dcb74ad38fb3e491f5f662da [2023-03-30 22:36:20,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-30 22:36:20,985 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-30 22:36:20,987 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-30 22:36:20,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-30 22:36:20,990 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-30 22:36:20,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:36:20" (1/1) ... [2023-03-30 22:36:20,991 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c066076 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:20, skipping insertion in model container [2023-03-30 22:36:20,991 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:36:20" (1/1) ... [2023-03-30 22:36:20,995 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-30 22:36:21,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-30 22:36:21,090 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/array-fpi/ss1f.c[587,600] [2023-03-30 22:36:21,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:36:21,120 INFO L203 MainTranslator]: Completed pre-run [2023-03-30 22:36:21,130 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/array-fpi/ss1f.c[587,600] [2023-03-30 22:36:21,141 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:36:21,151 INFO L208 MainTranslator]: Completed translation [2023-03-30 22:36:21,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21 WrapperNode [2023-03-30 22:36:21,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-30 22:36:21,153 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-30 22:36:21,153 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-30 22:36:21,153 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-30 22:36:21,160 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (1/1) ... [2023-03-30 22:36:21,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (1/1) ... [2023-03-30 22:36:21,172 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (1/1) ... [2023-03-30 22:36:21,172 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (1/1) ... [2023-03-30 22:36:21,177 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (1/1) ... [2023-03-30 22:36:21,179 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (1/1) ... [2023-03-30 22:36:21,180 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (1/1) ... [2023-03-30 22:36:21,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (1/1) ... [2023-03-30 22:36:21,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-30 22:36:21,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-30 22:36:21,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-30 22:36:21,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-30 22:36:21,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (1/1) ... [2023-03-30 22:36:21,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:36:21,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:21,204 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) [2023-03-30 22:36:21,217 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 [2023-03-30 22:36:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-30 22:36:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-30 22:36:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-30 22:36:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-30 22:36:21,232 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-30 22:36:21,233 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-30 22:36:21,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-30 22:36:21,234 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-30 22:36:21,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-30 22:36:21,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-30 22:36:21,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-30 22:36:21,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-30 22:36:21,278 INFO L236 CfgBuilder]: Building ICFG [2023-03-30 22:36:21,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-30 22:36:21,393 INFO L277 CfgBuilder]: Performing block encoding [2023-03-30 22:36:21,397 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-30 22:36:21,397 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-03-30 22:36:21,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:36:21 BoogieIcfgContainer [2023-03-30 22:36:21,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-30 22:36:21,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-30 22:36:21,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-30 22:36:21,417 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-30 22:36:21,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 10:36:20" (1/3) ... [2023-03-30 22:36:21,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761e7798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:36:21, skipping insertion in model container [2023-03-30 22:36:21,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:36:21" (2/3) ... [2023-03-30 22:36:21,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@761e7798 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:36:21, skipping insertion in model container [2023-03-30 22:36:21,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:36:21" (3/3) ... [2023-03-30 22:36:21,418 INFO L112 eAbstractionObserver]: Analyzing ICFG ss1f.c [2023-03-30 22:36:21,428 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-30 22:36:21,429 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-30 22:36:21,455 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-30 22:36:21,459 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@723ebcb6, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-30 22:36:21,459 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-30 22:36:21,462 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-30 22:36:21,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-03-30 22:36:21,466 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:36:21,467 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:36:21,467 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:36:21,470 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:36:21,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1106110167, now seen corresponding path program 1 times [2023-03-30 22:36:21,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:36:21,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448969568] [2023-03-30 22:36:21,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:21,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:36:21,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:36:21,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:36:21,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448969568] [2023-03-30 22:36:21,675 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-03-30 22:36:21,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [661421794] [2023-03-30 22:36:21,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:21,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:21,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:21,679 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) [2023-03-30 22:36:21,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-30 22:36:21,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:36:21,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjunts are in the unsatisfiable core [2023-03-30 22:36:21,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:36:21,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:36:21,780 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:36:21,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [661421794] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:36:21,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:36:21,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-03-30 22:36:21,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073127016] [2023-03-30 22:36:21,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:36:21,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-03-30 22:36:21,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:36:21,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-03-30 22:36:21,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-30 22:36:21,814 INFO L87 Difference]: Start difference. First operand has 37 states, 27 states have (on average 1.4444444444444444) internal successors, (39), 28 states have internal predecessors, (39), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-30 22:36:21,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:36:21,847 INFO L93 Difference]: Finished difference Result 64 states and 83 transitions. [2023-03-30 22:36:21,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-03-30 22:36:21,852 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2023-03-30 22:36:21,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:36:21,857 INFO L225 Difference]: With dead ends: 64 [2023-03-30 22:36:21,857 INFO L226 Difference]: Without dead ends: 30 [2023-03-30 22:36:21,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-03-30 22:36:21,863 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-30 22:36:21,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:36:21,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-03-30 22:36:21,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2023-03-30 22:36:21,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:21,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 33 transitions. [2023-03-30 22:36:21,884 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 33 transitions. Word has length 25 [2023-03-30 22:36:21,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:36:21,885 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 33 transitions. [2023-03-30 22:36:21,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-30 22:36:21,885 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 33 transitions. [2023-03-30 22:36:21,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-03-30 22:36:21,886 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:36:21,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:36:21,894 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-03-30 22:36:22,090 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 [2023-03-30 22:36:22,090 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:36:22,091 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:36:22,091 INFO L85 PathProgramCache]: Analyzing trace with hash 85041813, now seen corresponding path program 1 times [2023-03-30 22:36:22,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:36:22,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079068892] [2023-03-30 22:36:22,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:22,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:36:22,118 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:36:22,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [431521690] [2023-03-30 22:36:22,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:22,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:22,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:22,131 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) [2023-03-30 22:36:22,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-30 22:36:22,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:36:22,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 3 conjunts are in the unsatisfiable core [2023-03-30 22:36:22,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:36:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:36:22,247 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-30 22:36:22,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:36:22,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079068892] [2023-03-30 22:36:22,247 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:36:22,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431521690] [2023-03-30 22:36:22,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431521690] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:36:22,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:36:22,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-03-30 22:36:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131795484] [2023-03-30 22:36:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:36:22,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-03-30 22:36:22,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:36:22,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-03-30 22:36:22,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-30 22:36:22,250 INFO L87 Difference]: Start difference. First operand 30 states and 33 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:22,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:36:22,286 INFO L93 Difference]: Finished difference Result 53 states and 62 transitions. [2023-03-30 22:36:22,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-03-30 22:36:22,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 25 [2023-03-30 22:36:22,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:36:22,287 INFO L225 Difference]: With dead ends: 53 [2023-03-30 22:36:22,287 INFO L226 Difference]: Without dead ends: 38 [2023-03-30 22:36:22,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-03-30 22:36:22,288 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 25 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-30 22:36:22,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 35 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:36:22,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-03-30 22:36:22,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 34. [2023-03-30 22:36:22,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:22,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2023-03-30 22:36:22,293 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 25 [2023-03-30 22:36:22,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:36:22,293 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2023-03-30 22:36:22,293 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:36:22,293 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2023-03-30 22:36:22,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-03-30 22:36:22,294 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:36:22,294 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:36:22,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-30 22:36:22,498 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 [2023-03-30 22:36:22,498 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:36:22,499 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:36:22,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1689002269, now seen corresponding path program 1 times [2023-03-30 22:36:22,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:36:22,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253811552] [2023-03-30 22:36:22,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:22,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:36:22,529 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:36:22,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [218483545] [2023-03-30 22:36:22,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:36:22,531 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:36:22,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:36:22,545 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) [2023-03-30 22:36:22,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-30 22:36:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-30 22:36:22,635 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-30 22:36:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-30 22:36:22,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-03-30 22:36:22,670 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-30 22:36:22,671 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-30 22:36:22,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-30 22:36:22,877 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 [2023-03-30 22:36:22,881 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-03-30 22:36:22,883 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-30 22:36:22,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.03 10:36:22 BoogieIcfgContainer [2023-03-30 22:36:22,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-30 22:36:22,911 INFO L158 Benchmark]: Toolchain (without parser) took 1925.19ms. Allocated memory is still 375.4MB. Free memory was 334.8MB in the beginning and 318.6MB in the end (delta: 16.3MB). Peak memory consumption was 17.2MB. Max. memory is 8.0GB. [2023-03-30 22:36:22,911 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 196.1MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-30 22:36:22,911 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.58ms. Allocated memory is still 375.4MB. Free memory was 334.8MB in the beginning and 323.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-30 22:36:22,911 INFO L158 Benchmark]: Boogie Preprocessor took 29.04ms. Allocated memory is still 375.4MB. Free memory was 323.9MB in the beginning and 322.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-30 22:36:22,912 INFO L158 Benchmark]: RCFGBuilder took 231.32ms. Allocated memory is still 375.4MB. Free memory was 322.2MB in the beginning and 309.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-30 22:36:22,912 INFO L158 Benchmark]: TraceAbstraction took 1495.61ms. Allocated memory is still 375.4MB. Free memory was 308.6MB in the beginning and 318.6MB in the end (delta: -10.0MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-30 22:36:22,913 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 196.1MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 164.58ms. Allocated memory is still 375.4MB. Free memory was 334.8MB in the beginning and 323.9MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.04ms. Allocated memory is still 375.4MB. Free memory was 323.9MB in the beginning and 322.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 231.32ms. Allocated memory is still 375.4MB. Free memory was 322.2MB in the beginning and 309.3MB in the end (delta: 13.0MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 1495.61ms. Allocated memory is still 375.4MB. Free memory was 308.6MB in the beginning and 318.6MB in the end (delta: -10.0MB). 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: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0, \old(N)=10] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) VAL [N=1, \old(N)=0] [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [N=1, \old(N)=0, \old(cond)=1] [L13] COND FALSE !(!cond) VAL [N=1, \old(N)=0, \old(cond)=1, cond=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) VAL [N=1, \old(N)=0] [L27] int i; [L28] long long sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1, \old(N)=0, a={-1:0}, i=0, sum={4:0}] [L32] COND TRUE i