/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/ms1f.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-30 22:32:53,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-30 22:32:53,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-30 22:32:53,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-30 22:32:53,573 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-30 22:32:53,574 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-30 22:32:53,575 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-30 22:32:53,577 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-30 22:32:53,579 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-30 22:32:53,579 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-30 22:32:53,580 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-30 22:32:53,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-30 22:32:53,582 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-30 22:32:53,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-30 22:32:53,584 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-30 22:32:53,585 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-30 22:32:53,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-30 22:32:53,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-30 22:32:53,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-30 22:32:53,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-30 22:32:53,591 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-30 22:32:53,592 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-30 22:32:53,593 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-30 22:32:53,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-30 22:32:53,597 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-30 22:32:53,600 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-30 22:32:53,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-30 22:32:53,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-30 22:32:53,601 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-30 22:32:53,602 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-30 22:32:53,602 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-30 22:32:53,603 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-30 22:32:53,603 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-30 22:32:53,603 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-30 22:32:53,604 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-30 22:32:53,605 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-30 22:32:53,608 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 22:32:53,639 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-30 22:32:53,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-30 22:32:53,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-30 22:32:53,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-30 22:32:53,641 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-30 22:32:53,641 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-30 22:32:53,642 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-30 22:32:53,642 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-30 22:32:53,642 INFO L138 SettingsManager]: * Use SBE=true [2023-03-30 22:32:53,642 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-30 22:32:53,643 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-30 22:32:53,643 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-30 22:32:53,643 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-30 22:32:53,644 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-30 22:32:53,644 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-30 22:32:53,644 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-30 22:32:53,644 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-30 22:32:53,644 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-30 22:32:53,644 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-30 22:32:53,644 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-30 22:32:53,644 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-30 22:32:53,645 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-30 22:32:53,645 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-30 22:32:53,645 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-30 22:32:53,645 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:32:53,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-30 22:32:53,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-30 22:32:53,646 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-30 22:32:53,646 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-30 22:32:53,646 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-30 22:32:53,646 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-30 22:32:53,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-30 22:32:53,646 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-30 22:32:53,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-30 22:32:53,647 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-30 22:32:53,647 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-30 22:32:53,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-30 22:32:53,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-30 22:32:53,884 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-30 22:32:53,885 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-30 22:32:53,885 INFO L275 PluginConnector]: CDTParser initialized [2023-03-30 22:32:53,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ms1f.c [2023-03-30 22:32:54,945 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-30 22:32:55,178 INFO L351 CDTParser]: Found 1 translation units. [2023-03-30 22:32:55,179 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ms1f.c [2023-03-30 22:32:55,183 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0810f28d/dd7ba1acebf64a18a7568f96d3b96546/FLAG4106e79f4 [2023-03-30 22:32:55,194 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0810f28d/dd7ba1acebf64a18a7568f96d3b96546 [2023-03-30 22:32:55,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-30 22:32:55,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-30 22:32:55,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-30 22:32:55,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-30 22:32:55,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-30 22:32:55,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,204 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56deb4ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55, skipping insertion in model container [2023-03-30 22:32:55,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,211 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-30 22:32:55,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-30 22:32:55,352 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/ms1f.c[587,600] [2023-03-30 22:32:55,367 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:32:55,374 INFO L203 MainTranslator]: Completed pre-run [2023-03-30 22:32:55,384 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/ms1f.c[587,600] [2023-03-30 22:32:55,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:32:55,400 INFO L208 MainTranslator]: Completed translation [2023-03-30 22:32:55,401 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55 WrapperNode [2023-03-30 22:32:55,401 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-30 22:32:55,402 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-30 22:32:55,402 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-30 22:32:55,402 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-30 22:32:55,410 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,424 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,427 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,428 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,429 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,430 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-30 22:32:55,431 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-30 22:32:55,431 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-30 22:32:55,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-30 22:32:55,432 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (1/1) ... [2023-03-30 22:32:55,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:32:55,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:32:55,465 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 22:32:55,482 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 22:32:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-30 22:32:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-30 22:32:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-30 22:32:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-30 22:32:55,497 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-30 22:32:55,498 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-30 22:32:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-30 22:32:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-30 22:32:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-30 22:32:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-30 22:32:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-30 22:32:55,498 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-30 22:32:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-30 22:32:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2023-03-30 22:32:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-30 22:32:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-30 22:32:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-03-30 22:32:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-30 22:32:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-30 22:32:55,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-30 22:32:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-30 22:32:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-30 22:32:55,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-30 22:32:55,555 INFO L236 CfgBuilder]: Building ICFG [2023-03-30 22:32:55,557 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-30 22:32:55,720 INFO L277 CfgBuilder]: Performing block encoding [2023-03-30 22:32:55,725 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-30 22:32:55,725 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-03-30 22:32:55,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:32:55 BoogieIcfgContainer [2023-03-30 22:32:55,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-30 22:32:55,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-30 22:32:55,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-30 22:32:55,739 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-30 22:32:55,739 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 10:32:55" (1/3) ... [2023-03-30 22:32:55,739 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7ba2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:32:55, skipping insertion in model container [2023-03-30 22:32:55,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:32:55" (2/3) ... [2023-03-30 22:32:55,740 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c7ba2db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:32:55, skipping insertion in model container [2023-03-30 22:32:55,740 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:32:55" (3/3) ... [2023-03-30 22:32:55,741 INFO L112 eAbstractionObserver]: Analyzing ICFG ms1f.c [2023-03-30 22:32:55,757 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-30 22:32:55,757 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-30 22:32:55,804 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-30 22:32:55,810 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;@2f129d82, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-30 22:32:55,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-30 22:32:55,816 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 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 22:32:55,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-03-30 22:32:55,824 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:32:55,825 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] [2023-03-30 22:32:55,825 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:32:55,832 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:32:55,833 INFO L85 PathProgramCache]: Analyzing trace with hash 863653859, now seen corresponding path program 1 times [2023-03-30 22:32:55,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:32:55,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703649234] [2023-03-30 22:32:55,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:55,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:32:55,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:55,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 22:32:56,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:56,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-30 22:32:56,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:56,038 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 22:32:56,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:32:56,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703649234] [2023-03-30 22:32:56,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703649234] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:32:56,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:32:56,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-30 22:32:56,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797690546] [2023-03-30 22:32:56,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:32:56,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-30 22:32:56,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:32:56,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-30 22:32:56,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-30 22:32:56,071 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 23 states have internal predecessors, (31), 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 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 3 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 22:32:56,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:32:56,178 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2023-03-30 22:32:56,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-30 22:32:56,182 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 3 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 21 [2023-03-30 22:32:56,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:32:56,189 INFO L225 Difference]: With dead ends: 54 [2023-03-30 22:32:56,189 INFO L226 Difference]: Without dead ends: 25 [2023-03-30 22:32:56,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-30 22:32:56,200 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:32:56,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 30 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:32:56,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2023-03-30 22:32:56,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2023-03-30 22:32:56,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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 22:32:56,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2023-03-30 22:32:56,230 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 21 [2023-03-30 22:32:56,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:32:56,230 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2023-03-30 22:32:56,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (4), 3 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 22:32:56,230 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2023-03-30 22:32:56,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-03-30 22:32:56,231 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:32:56,231 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] [2023-03-30 22:32:56,231 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-30 22:32:56,232 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:32:56,232 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:32:56,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1121819297, now seen corresponding path program 1 times [2023-03-30 22:32:56,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:32:56,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188708045] [2023-03-30 22:32:56,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:56,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:32:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:56,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 22:32:56,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:56,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-03-30 22:32:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:32:56,413 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 22:32:56,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:32:56,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188708045] [2023-03-30 22:32:56,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188708045] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:32:56,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:32:56,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-30 22:32:56,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520145525] [2023-03-30 22:32:56,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:32:56,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-30 22:32:56,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:32:56,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-30 22:32:56,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-03-30 22:32:56,420 INFO L87 Difference]: Start difference. First operand 25 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:32:56,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:32:56,501 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2023-03-30 22:32:56,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-30 22:32:56,501 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 21 [2023-03-30 22:32:56,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:32:56,503 INFO L225 Difference]: With dead ends: 40 [2023-03-30 22:32:56,504 INFO L226 Difference]: Without dead ends: 30 [2023-03-30 22:32:56,509 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-03-30 22:32:56,514 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 32 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:32:56,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 18 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:32:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-03-30 22:32:56,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2023-03-30 22:32:56,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1428571428571428) internal successors, (24), 21 states have internal predecessors, (24), 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 22:32:56,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2023-03-30 22:32:56,520 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 21 [2023-03-30 22:32:56,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:32:56,520 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2023-03-30 22:32:56,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 3 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-03-30 22:32:56,521 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2023-03-30 22:32:56,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-03-30 22:32:56,521 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:32:56,522 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] [2023-03-30 22:32:56,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-30 22:32:56,522 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:32:56,523 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:32:56,523 INFO L85 PathProgramCache]: Analyzing trace with hash -667943349, now seen corresponding path program 1 times [2023-03-30 22:32:56,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:32:56,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691553446] [2023-03-30 22:32:56,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:32:56,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:32:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-30 22:32:56,581 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-03-30 22:32:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-03-30 22:32:56,656 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-03-30 22:32:56,656 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-03-30 22:32:56,657 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-30 22:32:56,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-30 22:32:56,661 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-03-30 22:32:56,664 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-30 22:32:56,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.03 10:32:56 BoogieIcfgContainer [2023-03-30 22:32:56,684 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-30 22:32:56,684 INFO L158 Benchmark]: Toolchain (without parser) took 1486.39ms. Allocated memory is still 228.6MB. Free memory was 192.8MB in the beginning and 189.3MB in the end (delta: 3.5MB). Peak memory consumption was 5.0MB. Max. memory is 8.0GB. [2023-03-30 22:32:56,684 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 189.8MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-30 22:32:56,685 INFO L158 Benchmark]: CACSL2BoogieTranslator took 202.25ms. Allocated memory is still 228.6MB. Free memory was 192.8MB in the beginning and 181.8MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-30 22:32:56,685 INFO L158 Benchmark]: Boogie Preprocessor took 28.69ms. Allocated memory is still 228.6MB. Free memory was 181.8MB in the beginning and 180.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-30 22:32:56,686 INFO L158 Benchmark]: RCFGBuilder took 296.19ms. Allocated memory is still 228.6MB. Free memory was 180.3MB in the beginning and 168.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-30 22:32:56,686 INFO L158 Benchmark]: TraceAbstraction took 948.32ms. Allocated memory is still 228.6MB. Free memory was 167.6MB in the beginning and 189.3MB in the end (delta: -21.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-30 22:32:56,687 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 189.8MB. Free memory is still 134.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 202.25ms. Allocated memory is still 228.6MB. Free memory was 192.8MB in the beginning and 181.8MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.69ms. Allocated memory is still 228.6MB. Free memory was 181.8MB in the beginning and 180.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 296.19ms. Allocated memory is still 228.6MB. Free memory was 180.3MB in the beginning and 168.2MB in the end (delta: 12.1MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 948.32ms. Allocated memory is still 228.6MB. Free memory was 167.6MB in the beginning and 189.3MB in the end (delta: -21.7MB). 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)=118] [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] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [N=1, \old(N)=0, a={-1:0}, i=0, sum={8:0}] [L31] COND TRUE i