/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/nested_structure_ptr-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-02 00:52:03,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-02 00:52:03,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-02 00:52:03,678 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-02 00:52:03,712 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 [2023-04-02 00:52:03,731 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-02 00:52:03,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-02 00:52:03,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-02 00:52:03,732 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-02 00:52:03,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-02 00:52:03,732 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-02 00:52:03,733 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-02 00:52:03,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-02 00:52:03,733 INFO L138 SettingsManager]: * Use SBE=true [2023-04-02 00:52:03,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-02 00:52:03,734 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-02 00:52:03,734 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-02 00:52:03,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-02 00:52:03,734 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-02 00:52:03,734 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-02 00:52:03,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-02 00:52:03,735 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-02 00:52:03,735 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-02 00:52:03,735 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-02 00:52:03,735 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-02 00:52:03,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-02 00:52:03,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-02 00:52:03,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-02 00:52:03,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-02 00:52:03,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:52:03,737 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-02 00:52:03,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-02 00:52:03,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-02 00:52:03,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-02 00:52:03,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-02 00:52:03,738 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-02 00:52:03,738 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-02 00:52:03,738 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-02 00:52:03,738 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-02 00:52:03,738 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-02 00:52:03,738 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-02 00:52:03,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-02 00:52:03,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-02 00:52:03,984 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-02 00:52:03,985 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-02 00:52:03,985 INFO L275 PluginConnector]: CDTParser initialized [2023-04-02 00:52:03,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-regression/nested_structure_ptr-1.i [2023-04-02 00:52:05,149 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-02 00:52:05,319 INFO L351 CDTParser]: Found 1 translation units. [2023-04-02 00:52:05,319 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-regression/nested_structure_ptr-1.i [2023-04-02 00:52:05,325 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac383960/220235b4fdb14034aa30cf2d1707f79e/FLAG1e19cc2c3 [2023-04-02 00:52:05,344 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dac383960/220235b4fdb14034aa30cf2d1707f79e [2023-04-02 00:52:05,347 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-02 00:52:05,349 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-02 00:52:05,352 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-02 00:52:05,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-02 00:52:05,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-02 00:52:05,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f741c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05, skipping insertion in model container [2023-04-02 00:52:05,357 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-02 00:52:05,374 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-02 00:52:05,509 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/nested_structure_ptr-1.i[308,321] [2023-04-02 00:52:05,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:52:05,541 INFO L203 MainTranslator]: Completed pre-run [2023-04-02 00:52:05,552 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/nested_structure_ptr-1.i[308,321] [2023-04-02 00:52:05,559 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-02 00:52:05,573 INFO L208 MainTranslator]: Completed translation [2023-04-02 00:52:05,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05 WrapperNode [2023-04-02 00:52:05,574 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-02 00:52:05,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-02 00:52:05,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-02 00:52:05,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-02 00:52:05,584 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,584 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,591 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,607 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,608 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,610 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,610 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-02 00:52:05,617 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-02 00:52:05,617 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-02 00:52:05,617 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-02 00:52:05,618 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (1/1) ... [2023-04-02 00:52:05,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-02 00:52:05,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-02 00:52:05,646 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-02 00:52:05,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-02 00:52:05,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-02 00:52:05,688 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-02 00:52:05,689 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-02 00:52:05,689 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2023-04-02 00:52:05,689 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-02 00:52:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-02 00:52:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-02 00:52:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-02 00:52:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-02 00:52:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2023-04-02 00:52:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-02 00:52:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-02 00:52:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-02 00:52:05,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-04-02 00:52:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-04-02 00:52:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-02 00:52:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-02 00:52:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-02 00:52:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-02 00:52:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-02 00:52:05,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-04-02 00:52:05,773 INFO L236 CfgBuilder]: Building ICFG [2023-04-02 00:52:05,775 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-02 00:52:05,908 INFO L277 CfgBuilder]: Performing block encoding [2023-04-02 00:52:05,913 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-02 00:52:05,913 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-04-02 00:52:05,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:52:05 BoogieIcfgContainer [2023-04-02 00:52:05,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-02 00:52:05,916 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-02 00:52:05,916 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-02 00:52:05,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-02 00:52:05,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.04 12:52:05" (1/3) ... [2023-04-02 00:52:05,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68094064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:52:05, skipping insertion in model container [2023-04-02 00:52:05,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.04 12:52:05" (2/3) ... [2023-04-02 00:52:05,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68094064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.04 12:52:05, skipping insertion in model container [2023-04-02 00:52:05,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.04 12:52:05" (3/3) ... [2023-04-02 00:52:05,922 INFO L112 eAbstractionObserver]: Analyzing ICFG nested_structure_ptr-1.i [2023-04-02 00:52:05,937 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-02 00:52:05,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-02 00:52:06,010 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-02 00:52:06,016 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;@2d6b5247, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-02 00:52:06,017 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-02 00:52:06,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-02 00:52:06,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-04-02 00:52:06,026 INFO L187 NwaCegarLoop]: Found error trace [2023-04-02 00:52:06,036 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-02 00:52:06,036 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-02 00:52:06,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-02 00:52:06,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1062496394, now seen corresponding path program 1 times [2023-04-02 00:52:06,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-02 00:52:06,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050721812] [2023-04-02 00:52:06,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-02 00:52:06,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-02 00:52:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:52:07,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-02 00:52:07,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-02 00:52:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-02 00:52:07,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-02 00:52:07,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050721812] [2023-04-02 00:52:07,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050721812] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-02 00:52:07,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-02 00:52:07,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-02 00:52:07,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839031675] [2023-04-02 00:52:07,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-02 00:52:07,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-02 00:52:07,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-02 00:52:07,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-02 00:52:07,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-02 00:52:07,134 INFO L87 Difference]: Start difference. First operand has 17 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:52:07,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-02 00:52:07,192 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2023-04-02 00:52:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-04-02 00:52:07,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2023-04-02 00:52:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-02 00:52:07,201 INFO L225 Difference]: With dead ends: 22 [2023-04-02 00:52:07,201 INFO L226 Difference]: Without dead ends: 0 [2023-04-02 00:52:07,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-02 00:52:07,210 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-04-02 00:52:07,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 16 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-04-02 00:52:07,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-02 00:52:07,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-02 00:52:07,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-04-02 00:52:07,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-02 00:52:07,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2023-04-02 00:52:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-02 00:52:07,233 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-02 00:52:07,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 3 states have internal predecessors, (5), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-02 00:52:07,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-02 00:52:07,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-02 00:52:07,239 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-02 00:52:07,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-02 00:52:07,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-02 00:52:07,260 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-04-02 00:52:07,260 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2023-04-02 00:52:07,260 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-04-02 00:52:07,260 INFO L899 garLoopResultBuilder]: For program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2023-04-02 00:52:07,261 INFO L902 garLoopResultBuilder]: At program point ERROR(lines 10 13) the Hoare annotation is: true [2023-04-02 00:52:07,261 INFO L899 garLoopResultBuilder]: For program point __blast_assertEXIT(lines 10 13) no Hoare annotation was computed. [2023-04-02 00:52:07,261 INFO L899 garLoopResultBuilder]: For program point __blast_assertFINAL(lines 10 13) no Hoare annotation was computed. [2023-04-02 00:52:07,261 INFO L895 garLoopResultBuilder]: At program point L34-2(line 34) the Hoare annotation is: false [2023-04-02 00:52:07,262 INFO L899 garLoopResultBuilder]: For program point L34-3(line 34) no Hoare annotation was computed. [2023-04-02 00:52:07,262 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 27 36) no Hoare annotation was computed. [2023-04-02 00:52:07,262 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 27 36) the Hoare annotation is: true [2023-04-02 00:52:07,262 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 27 36) no Hoare annotation was computed. [2023-04-02 00:52:07,263 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-04-02 00:52:07,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2023-04-02 00:52:07,263 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-04-02 00:52:07,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-02 00:52:07,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-02 00:52:07,263 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-04-02 00:52:07,263 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-02 00:52:07,264 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-02 00:52:07,267 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-04-02 00:52:07,269 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-02 00:52:07,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.04 12:52:07 BoogieIcfgContainer [2023-04-02 00:52:07,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-02 00:52:07,274 INFO L158 Benchmark]: Toolchain (without parser) took 1924.19ms. Allocated memory is still 182.5MB. Free memory was 140.7MB in the beginning and 59.7MB in the end (delta: 81.0MB). Peak memory consumption was 81.9MB. Max. memory is 8.0GB. [2023-04-02 00:52:07,274 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 182.5MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-02 00:52:07,274 INFO L158 Benchmark]: CACSL2BoogieTranslator took 222.38ms. Allocated memory is still 182.5MB. Free memory was 140.7MB in the beginning and 130.5MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-04-02 00:52:07,275 INFO L158 Benchmark]: Boogie Preprocessor took 41.37ms. Allocated memory is still 182.5MB. Free memory was 130.5MB in the beginning and 128.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-04-02 00:52:07,278 INFO L158 Benchmark]: RCFGBuilder took 297.65ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 117.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-02 00:52:07,278 INFO L158 Benchmark]: TraceAbstraction took 1356.71ms. Allocated memory is still 182.5MB. Free memory was 116.6MB in the beginning and 59.7MB in the end (delta: 56.9MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. [2023-04-02 00:52:07,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 182.5MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 222.38ms. Allocated memory is still 182.5MB. Free memory was 140.7MB in the beginning and 130.5MB in the end (delta: 10.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.37ms. Allocated memory is still 182.5MB. Free memory was 130.5MB in the beginning and 128.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 297.65ms. Allocated memory is still 182.5MB. Free memory was 128.8MB in the beginning and 117.3MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1356.71ms. Allocated memory is still 182.5MB. Free memory was 116.6MB in the beginning and 59.7MB in the end (delta: 56.9MB). Peak memory consumption was 57.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 12]: 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 5 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 9 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 7 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 4, 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, 6 LocationsWithAnnotation, 6 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 16 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 RESULT: Ultimate proved your program to be correct! [2023-04-02 00:52:07,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...