/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/ldv-regression/test30-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 00:08:20,532 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 00:08:20,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 00:08:20,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-31 00:08:20,597 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 [2023-03-31 00:08:20,624 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 00:08:20,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 00:08:20,625 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 00:08:20,625 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 00:08:20,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 00:08:20,626 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 00:08:20,627 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-31 00:08:20,627 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-31 00:08:20,627 INFO L138 SettingsManager]: * Use SBE=true [2023-03-31 00:08:20,627 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 00:08:20,628 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 00:08:20,628 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 00:08:20,628 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 00:08:20,628 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 00:08:20,628 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 00:08:20,628 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 00:08:20,628 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 00:08:20,628 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 00:08:20,629 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 00:08:20,629 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 00:08:20,629 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 00:08:20,629 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 00:08:20,629 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-31 00:08:20,629 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 00:08:20,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:08:20,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 00:08:20,630 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 00:08:20,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 00:08:20,630 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-31 00:08:20,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 00:08:20,630 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-31 00:08:20,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 00:08:20,630 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-31 00:08:20,631 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-31 00:08:20,631 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-31 00:08:20,631 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-31 00:08:20,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 00:08:20,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 00:08:20,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 00:08:20,881 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 00:08:20,881 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 00:08:20,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/test30-1.c [2023-03-31 00:08:22,067 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 00:08:22,276 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 00:08:22,276 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/test30-1.c [2023-03-31 00:08:22,280 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c12e85e5/6655187e90e84e45a3f491a300f21f44/FLAG16d0c507e [2023-03-31 00:08:22,293 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8c12e85e5/6655187e90e84e45a3f491a300f21f44 [2023-03-31 00:08:22,295 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 00:08:22,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 00:08:22,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 00:08:22,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 00:08:22,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 00:08:22,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16347abc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22, skipping insertion in model container [2023-03-31 00:08:22,302 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 00:08:22,319 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 00:08:22,443 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/ldv-regression/test30-1.c[560,573] [2023-03-31 00:08:22,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:08:22,463 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 00:08:22,477 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/ldv-regression/test30-1.c[560,573] [2023-03-31 00:08:22,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 00:08:22,493 INFO L208 MainTranslator]: Completed translation [2023-03-31 00:08:22,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22 WrapperNode [2023-03-31 00:08:22,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 00:08:22,494 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 00:08:22,494 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 00:08:22,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 00:08:22,504 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,513 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,532 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 00:08:22,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 00:08:22,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 00:08:22,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 00:08:22,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (1/1) ... [2023-03-31 00:08:22,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 00:08:22,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 00:08:22,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 00:08:22,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 00:08:22,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 00:08:22,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 00:08:22,607 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 00:08:22,607 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2023-03-31 00:08:22,607 INFO L138 BoogieDeclarations]: Found implementation of procedure assign2 [2023-03-31 00:08:22,607 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 00:08:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 00:08:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 00:08:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 00:08:22,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 00:08:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2023-03-31 00:08:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 00:08:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 00:08:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure assign2 [2023-03-31 00:08:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-03-31 00:08:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 00:08:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 00:08:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 00:08:22,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-03-31 00:08:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 00:08:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-03-31 00:08:22,609 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 00:08:22,700 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 00:08:22,703 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 00:08:22,874 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 00:08:22,895 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 00:08:22,896 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-03-31 00:08:22,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:08:22 BoogieIcfgContainer [2023-03-31 00:08:22,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 00:08:22,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 00:08:22,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 00:08:22,903 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 00:08:22,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 12:08:22" (1/3) ... [2023-03-31 00:08:22,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a24621c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:08:22, skipping insertion in model container [2023-03-31 00:08:22,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 12:08:22" (2/3) ... [2023-03-31 00:08:22,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a24621c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 12:08:22, skipping insertion in model container [2023-03-31 00:08:22,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 12:08:22" (3/3) ... [2023-03-31 00:08:22,905 INFO L112 eAbstractionObserver]: Analyzing ICFG test30-1.c [2023-03-31 00:08:22,921 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 00:08:22,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 00:08:22,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 00:08:22,988 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;@38a8af29, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-31 00:08:22,989 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 00:08:22,992 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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) [2023-03-31 00:08:22,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-03-31 00:08:22,999 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 00:08:22,999 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 00:08:23,000 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 00:08:23,004 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 00:08:23,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1372886352, now seen corresponding path program 1 times [2023-03-31 00:08:23,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-31 00:08:23,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239065448] [2023-03-31 00:08:23,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 00:08:23,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 00:08:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:08:24,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-31 00:08:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:08:24,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-31 00:08:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:08:24,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-03-31 00:08:24,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 00:08:24,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 00:08:24,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-31 00:08:24,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239065448] [2023-03-31 00:08:24,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239065448] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 00:08:24,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 00:08:24,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-03-31 00:08:24,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542848218] [2023-03-31 00:08:24,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 00:08:24,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-03-31 00:08:24,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-31 00:08:24,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-03-31 00:08:24,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2023-03-31 00:08:24,822 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 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 11 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 00:08:25,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 00:08:25,421 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2023-03-31 00:08:25,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-31 00:08:25,424 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 18 [2023-03-31 00:08:25,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 00:08:25,430 INFO L225 Difference]: With dead ends: 27 [2023-03-31 00:08:25,430 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 00:08:25,435 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2023-03-31 00:08:25,441 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 19 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 00:08:25,443 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 19 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 00:08:25,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 00:08:25,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 00:08:25,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 00:08:25,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 00:08:25,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2023-03-31 00:08:25,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 00:08:25,466 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 00:08:25,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 1.375) internal successors, (11), 7 states have internal predecessors, (11), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 00:08:25,467 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 00:08:25,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 00:08:25,468 INFO L805 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 00:08:25,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 00:08:25,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 00:08:25,848 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-03-31 00:08:25,848 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2023-03-31 00:08:25,848 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-03-31 00:08:25,848 INFO L899 garLoopResultBuilder]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 33) no Hoare annotation was computed. [2023-03-31 00:08:25,849 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 21 35) no Hoare annotation was computed. [2023-03-31 00:08:25,849 INFO L895 garLoopResultBuilder]: At program point ERROR(lines 22 35) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (not (= .cse2 |~#a~0.base|))))) [2023-03-31 00:08:25,849 INFO L899 garLoopResultBuilder]: For program point L27(lines 27 29) no Hoare annotation was computed. [2023-03-31 00:08:25,849 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 21 35) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (not (= .cse2 |~#a~0.base|))))) [2023-03-31 00:08:25,850 INFO L895 garLoopResultBuilder]: At program point L25(line 25) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (let ((.cse3 (select |#memory_$Pointer$.offset| main_~pd~0.base)) (.cse4 (select |#memory_$Pointer$.base| main_~pd~0.base))) (and (= (select .cse3 main_~pd~0.offset) |~#a~0.offset|) (= |#memory_int| |old(#memory_int)|) (= (select .cse3 4) |~#b~0.offset|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (= (select .cse4 main_~pd~0.offset) |~#a~0.base|) (<= 0 main_~pd~0.offset) (<= main_~pd~0.offset 0) (= |~#b~0.base| (select .cse4 4)))) (not (= .cse2 |~#a~0.base|))))) [2023-03-31 00:08:25,850 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 21 35) no Hoare annotation was computed. [2023-03-31 00:08:25,850 INFO L899 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2023-03-31 00:08:25,850 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2023-03-31 00:08:25,850 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |old(~#a~0.offset)| |~#a~0.offset|) (= |~#global~0.offset| |old(~#global~0.offset)|) (= |old(~#b~0.offset)| |~#b~0.offset|) (= |old(~#a~0.base)| |~#a~0.base|) (= |~#b~0.base| |old(~#b~0.base)|) (= |~#global~0.base| |old(~#global~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-03-31 00:08:25,851 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 00:08:25,851 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 00:08:25,851 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse2 (select |#memory_$Pointer$.base| |~#global~0.base|))) (let ((.cse0 (select .cse2 0)) (.cse1 (select |#memory_$Pointer$.offset| |~#global~0.base|))) (and (not (= .cse0 |~#b~0.base|)) (= .cse0 |~#a~0.base|) (= (select .cse1 4) |~#b~0.offset|) (= |~#global~0.offset| 0) (= (select .cse1 0) |~#a~0.offset|) (= |~#b~0.base| (select .cse2 4))))) [2023-03-31 00:08:25,851 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 00:08:25,851 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 00:08:25,851 INFO L899 garLoopResultBuilder]: For program point L18-1(line 18) no Hoare annotation was computed. [2023-03-31 00:08:25,851 INFO L899 garLoopResultBuilder]: For program point assign2FINAL(lines 16 19) no Hoare annotation was computed. [2023-03-31 00:08:25,852 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 19) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (not (= .cse2 |~#a~0.base|))))) [2023-03-31 00:08:25,852 INFO L899 garLoopResultBuilder]: For program point assign2EXIT(lines 16 19) no Hoare annotation was computed. [2023-03-31 00:08:25,852 INFO L895 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (let ((.cse1 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse2 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse3 (select .cse1 0))) (or (let ((.cse0 (not (= 4 |assign2_#in~pb.offset|)))) (and (or .cse0 (and (= |assign2_#t~mem5.offset| (select (select |#memory_$Pointer$.offset| |assign2_#in~pa.base|) |assign2_#in~pa.offset|)) (= (select (select |#memory_$Pointer$.offset| |assign2_#in~pb.base|) 4) |assign2_#t~mem6.offset|))) (= (select (select |#memory_$Pointer$.base| |assign2_#in~pa.base|) |assign2_#in~pa.offset|) |assign2_#t~mem5.base|) (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|) (or (= (select (select |#memory_$Pointer$.base| |assign2_#in~pb.base|) 4) |assign2_#t~mem6.base|) .cse0))) (not (= |~#b~0.base| (select .cse1 4))) (not (= (select .cse2 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse2 0) |~#a~0.offset|)) (= .cse3 |~#b~0.base|) (not (= .cse3 |~#a~0.base|))))) [2023-03-31 00:08:25,852 INFO L899 garLoopResultBuilder]: For program point assignEXIT(lines 11 14) no Hoare annotation was computed. [2023-03-31 00:08:25,853 INFO L899 garLoopResultBuilder]: For program point assignFINAL(lines 11 14) no Hoare annotation was computed. [2023-03-31 00:08:25,853 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 11 14) the Hoare annotation is: (let ((.cse0 (select |old(#memory_$Pointer$.base)| |~#global~0.base|))) (let ((.cse1 (select |old(#memory_$Pointer$.offset)| |~#global~0.base|)) (.cse2 (select .cse0 0))) (or (not (= |~#b~0.base| (select .cse0 4))) (and (= |#memory_int| |old(#memory_int)|) (= |#memory_$Pointer$.base| |old(#memory_$Pointer$.base)|) (= |#memory_$Pointer$.offset| |old(#memory_$Pointer$.offset)|)) (not (= (select .cse1 4) |~#b~0.offset|)) (not (= |~#global~0.offset| 0)) (not (= (select .cse1 0) |~#a~0.offset|)) (= .cse2 |~#b~0.base|) (not (= .cse2 |~#a~0.base|))))) [2023-03-31 00:08:25,856 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-03-31 00:08:25,858 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 00:08:25,867 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,868 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:08:25,868 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:08:25,869 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,869 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,872 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,872 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:08:25,873 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:08:25,873 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,873 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 12:08:25 BoogieIcfgContainer [2023-03-31 00:08:25,874 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 00:08:25,875 INFO L158 Benchmark]: Toolchain (without parser) took 3578.43ms. Allocated memory was 311.4MB in the beginning and 401.6MB in the end (delta: 90.2MB). Free memory was 274.3MB in the beginning and 273.3MB in the end (delta: 1.1MB). Peak memory consumption was 92.4MB. Max. memory is 8.0GB. [2023-03-31 00:08:25,875 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 188.7MB. Free memory was 136.1MB in the beginning and 136.0MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 00:08:25,876 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.95ms. Allocated memory is still 311.4MB. Free memory was 273.9MB in the beginning and 263.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 00:08:25,876 INFO L158 Benchmark]: Boogie Preprocessor took 40.48ms. Allocated memory is still 311.4MB. Free memory was 263.8MB in the beginning and 262.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 00:08:25,877 INFO L158 Benchmark]: RCFGBuilder took 362.63ms. Allocated memory is still 311.4MB. Free memory was 262.4MB in the beginning and 250.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-31 00:08:25,877 INFO L158 Benchmark]: TraceAbstraction took 2974.54ms. Allocated memory was 311.4MB in the beginning and 401.6MB in the end (delta: 90.2MB). Free memory was 250.3MB in the beginning and 273.3MB in the end (delta: -23.0MB). Peak memory consumption was 68.3MB. Max. memory is 8.0GB. [2023-03-31 00:08:25,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 188.7MB. Free memory was 136.1MB in the beginning and 136.0MB in the end (delta: 150.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 195.95ms. Allocated memory is still 311.4MB. Free memory was 273.9MB in the beginning and 263.8MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.48ms. Allocated memory is still 311.4MB. Free memory was 263.8MB in the beginning and 262.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 362.63ms. Allocated memory is still 311.4MB. Free memory was 262.4MB in the beginning and 250.9MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2974.54ms. Allocated memory was 311.4MB in the beginning and 401.6MB in the end (delta: 90.2MB). Free memory was 250.3MB in the beginning and 273.3MB in the end (delta: -23.0MB). Peak memory consumption was 68.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 33]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.9s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 19 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 136 IncrementalHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 4 mSDtfsCounter, 136 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 453 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 195 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 468 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant [2023-03-31 00:08:25,896 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,897 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:08:25,897 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:08:25,897 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,897 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,898 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,898 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:08:25,898 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.offset [2023-03-31 00:08:25,898 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base [2023-03-31 00:08:25,898 WARN L421 cessorBacktranslator]: Unfinished backtranslation: Name guessing unsuccessful for VarDecl var #memory_$Pointer$ : [$Pointer$]$Pointer$; and expression #memory_$Pointer$.base Derived loop invariant: ((((!(b == \old(#memory_$Pointer$)[global][4]) || !(\old(#memory_$Pointer$)[global][4] == b)) || !(global == 0)) || !(\old(#memory_$Pointer$)[global][0] == a)) || \old(#memory_$Pointer$)[global][0] == b) || !(\old(#memory_$Pointer$)[global][0] == a) RESULT: Ultimate proved your program to be correct! [2023-03-31 00:08:25,907 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...