/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 02:05:06,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 02:05:06,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 02:05:06,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 02:05:06,972 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-02-15 02:05:06,979 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 02:05:06,979 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 02:05:06,980 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 02:05:06,980 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 02:05:06,981 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 02:05:06,981 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 02:05:06,981 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 02:05:06,981 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 02:05:06,981 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 02:05:06,981 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 02:05:06,981 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 02:05:06,982 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 02:05:06,982 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 02:05:06,982 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 02:05:06,982 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 02:05:06,982 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 02:05:06,982 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 02:05:06,982 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 02:05:06,983 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 02:05:06,983 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 02:05:06,983 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 02:05:06,983 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 02:05:06,983 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-15 02:05:06,983 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 02:05:07,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 02:05:07,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 02:05:07,197 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 02:05:07,198 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 02:05:07,199 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 02:05:07,200 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2022-02-15 02:05:07,292 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109441cab/9d8ce0eb67a449e6bab0abda637f3754/FLAG2746c0896 [2022-02-15 02:05:07,658 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 02:05:07,663 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c [2022-02-15 02:05:07,672 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109441cab/9d8ce0eb67a449e6bab0abda637f3754/FLAG2746c0896 [2022-02-15 02:05:08,078 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/109441cab/9d8ce0eb67a449e6bab0abda637f3754 [2022-02-15 02:05:08,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 02:05:08,081 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 02:05:08,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 02:05:08,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 02:05:08,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 02:05:08,087 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c3559d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08, skipping insertion in model container [2022-02-15 02:05:08,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,094 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 02:05:08,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 02:05:08,219 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c[321,334] [2022-02-15 02:05:08,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 02:05:08,239 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 02:05:08,271 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops-crafted-1/nested5-1.c[321,334] [2022-02-15 02:05:08,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 02:05:08,295 INFO L208 MainTranslator]: Completed translation [2022-02-15 02:05:08,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08 WrapperNode [2022-02-15 02:05:08,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 02:05:08,317 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 02:05:08,317 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 02:05:08,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 02:05:08,326 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,334 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,334 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,352 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 02:05:08,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 02:05:08,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 02:05:08,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 02:05:08,354 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08" (1/1) ... [2022-02-15 02:05:08,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 02:05:08,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 02:05:08,382 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) [2022-02-15 02:05:08,386 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 [2022-02-15 02:05:08,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 02:05:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 02:05:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 02:05:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-15 02:05:08,412 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 02:05:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 02:05:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 02:05:08,413 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 02:05:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 02:05:08,414 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-15 02:05:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 02:05:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 02:05:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 02:05:08,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 02:05:08,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 02:05:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 02:05:08,418 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 02:05:08,473 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 02:05:08,475 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 02:05:08,654 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 02:05:08,659 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 02:05:08,659 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-02-15 02:05:08,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:05:08 BoogieIcfgContainer [2022-02-15 02:05:08,660 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 02:05:08,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 02:05:08,662 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 02:05:08,665 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 02:05:08,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 02:05:08" (1/3) ... [2022-02-15 02:05:08,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc68f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:05:08, skipping insertion in model container [2022-02-15 02:05:08,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 02:05:08" (2/3) ... [2022-02-15 02:05:08,666 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc68f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 02:05:08, skipping insertion in model container [2022-02-15 02:05:08,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 02:05:08" (3/3) ... [2022-02-15 02:05:08,668 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-1.c [2022-02-15 02:05:08,672 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 02:05:08,672 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 02:05:08,731 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 02:05:08,749 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=AcceleratedInterpolation, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, 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, mLoopAccelerationTechnique=JORDAN [2022-02-15 02:05:08,749 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 02:05:08,776 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 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) [2022-02-15 02:05:08,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-02-15 02:05:08,784 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:05:08,785 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:05:08,785 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:05:08,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:05:08,790 INFO L85 PathProgramCache]: Analyzing trace with hash -531959740, now seen corresponding path program 1 times [2022-02-15 02:05:08,810 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:05:08,810 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182353920] [2022-02-15 02:05:08,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:05:08,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:05:08,887 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 02:05:08,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:05:09,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:05:09,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:05:09,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:05:09,057 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:05:09,058 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182353920] [2022-02-15 02:05:09,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [182353920] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:05:09,059 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:05:09,059 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-15 02:05:09,061 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808336599] [2022-02-15 02:05:09,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:05:09,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-15 02:05:09,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:05:09,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-15 02:05:09,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 02:05:09,095 INFO L87 Difference]: Start difference. First operand has 28 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 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 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-15 02:05:09,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:05:09,143 INFO L93 Difference]: Finished difference Result 50 states and 71 transitions. [2022-02-15 02:05:09,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-15 02:05:09,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-02-15 02:05:09,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:05:09,157 INFO L225 Difference]: With dead ends: 50 [2022-02-15 02:05:09,158 INFO L226 Difference]: Without dead ends: 23 [2022-02-15 02:05:09,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-15 02:05:09,163 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 23 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 02:05:09,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 34 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 02:05:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-02-15 02:05:09,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-02-15 02:05:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-15 02:05:09,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-02-15 02:05:09,202 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 15 [2022-02-15 02:05:09,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:05:09,203 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-02-15 02:05:09,203 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-02-15 02:05:09,203 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-02-15 02:05:09,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-02-15 02:05:09,204 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:05:09,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:05:09,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 02:05:09,205 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:05:09,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:05:09,205 INFO L85 PathProgramCache]: Analyzing trace with hash -537500866, now seen corresponding path program 1 times [2022-02-15 02:05:09,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:05:09,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [444981632] [2022-02-15 02:05:09,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:05:09,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:05:09,219 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 02:05:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:05:09,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:05:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:05:09,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:05:09,324 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:05:09,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [444981632] [2022-02-15 02:05:09,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [444981632] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:05:09,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:05:09,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 02:05:09,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604532571] [2022-02-15 02:05:09,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:05:09,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 02:05:09,327 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:05:09,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 02:05:09,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 02:05:09,330 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-02-15 02:05:09,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:05:09,411 INFO L93 Difference]: Finished difference Result 49 states and 61 transitions. [2022-02-15 02:05:09,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-15 02:05:09,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 15 [2022-02-15 02:05:09,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:05:09,413 INFO L225 Difference]: With dead ends: 49 [2022-02-15 02:05:09,413 INFO L226 Difference]: Without dead ends: 32 [2022-02-15 02:05:09,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-15 02:05:09,416 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 41 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-15 02:05:09,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 31 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-15 02:05:09,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-02-15 02:05:09,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 24. [2022-02-15 02:05:09,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-02-15 02:05:09,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2022-02-15 02:05:09,423 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 15 [2022-02-15 02:05:09,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:05:09,424 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2022-02-15 02:05:09,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-02-15 02:05:09,424 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2022-02-15 02:05:09,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-02-15 02:05:09,425 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 02:05:09,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 02:05:09,425 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 02:05:09,425 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 02:05:09,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 02:05:09,426 INFO L85 PathProgramCache]: Analyzing trace with hash -509289700, now seen corresponding path program 1 times [2022-02-15 02:05:09,426 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 02:05:09,426 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1325874204] [2022-02-15 02:05:09,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 02:05:09,536 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 1 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 1 QuantifierFreeResult [2022-02-15 02:05:09,537 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 02:05:09,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 02:05:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:05:09,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 02:05:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 02:05:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-15 02:05:09,854 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 02:05:09,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1325874204] [2022-02-15 02:05:09,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1325874204] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 02:05:09,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 02:05:09,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-02-15 02:05:09,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064022296] [2022-02-15 02:05:09,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 02:05:09,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-15 02:05:09,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 02:05:09,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-15 02:05:09,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-02-15 02:05:09,858 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand has 9 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2022-02-15 02:05:10,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 02:05:10,151 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2022-02-15 02:05:10,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 02:05:10,151 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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 17 [2022-02-15 02:05:10,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 02:05:10,152 INFO L225 Difference]: With dead ends: 32 [2022-02-15 02:05:10,152 INFO L226 Difference]: Without dead ends: 0 [2022-02-15 02:05:10,152 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2022-02-15 02:05:10,153 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 55 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 02:05:10,154 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 61 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 02:05:10,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-02-15 02:05:10,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-02-15 02:05:10,155 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) [2022-02-15 02:05:10,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-02-15 02:05:10,155 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2022-02-15 02:05:10,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 02:05:10,155 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-02-15 02:05:10,156 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 1.625) internal successors, (13), 7 states have internal predecessors, (13), 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) [2022-02-15 02:05:10,156 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-02-15 02:05:10,156 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-02-15 02:05:10,158 INFO L764 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 02:05:10,158 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 02:05:10,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-02-15 02:05:10,465 INFO L858 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2022-02-15 02:05:10,465 INFO L858 garLoopResultBuilder]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2022-02-15 02:05:10,466 INFO L858 garLoopResultBuilder]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2022-02-15 02:05:10,466 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-02-15 02:05:10,466 INFO L854 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-02-15 02:05:10,466 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-02-15 02:05:10,466 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-02-15 02:05:10,466 INFO L861 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-02-15 02:05:10,466 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-02-15 02:05:10,467 INFO L861 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-02-15 02:05:10,467 INFO L861 garLoopResultBuilder]: At program point mainEXIT(lines 12 27) the Hoare annotation is: true [2022-02-15 02:05:10,467 INFO L854 garLoopResultBuilder]: At program point L23-2(line 23) the Hoare annotation is: (and (< (mod main_~v~0 4294967296) 10) (< 0 (+ (div main_~v~0 4294967296) 1)) (<= (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 0)) [2022-02-15 02:05:10,467 INFO L854 garLoopResultBuilder]: At program point L23-3(line 23) the Hoare annotation is: (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 0)) [2022-02-15 02:05:10,467 INFO L854 garLoopResultBuilder]: At program point L23-4(line 23) the Hoare annotation is: (let ((.cse0 (div main_~v~0 4294967296))) (and (<= (+ (* .cse0 4294967296) 10 (* (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 4294967296)) main_~v~0) (< 0 (+ .cse0 1)))) [2022-02-15 02:05:10,467 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 19 25) the Hoare annotation is: (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 0)) [2022-02-15 02:05:10,468 INFO L854 garLoopResultBuilder]: At program point L19-3(lines 19 25) the Hoare annotation is: (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 0)) [2022-02-15 02:05:10,468 INFO L861 garLoopResultBuilder]: At program point L19-4(lines 19 25) the Hoare annotation is: true [2022-02-15 02:05:10,468 INFO L854 garLoopResultBuilder]: At program point L24(lines 22 25) the Hoare annotation is: (let ((.cse0 (div main_~v~0 4294967296))) (and (<= (+ (* .cse0 4294967296) 10 (* (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 4294967296)) main_~v~0) (< 0 (+ .cse0 1)))) [2022-02-15 02:05:10,468 INFO L854 garLoopResultBuilder]: At program point L20-2(lines 20 25) the Hoare annotation is: (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 0)) [2022-02-15 02:05:10,468 INFO L854 garLoopResultBuilder]: At program point L20-3(lines 20 25) the Hoare annotation is: (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 0)) [2022-02-15 02:05:10,468 INFO L854 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 0)) [2022-02-15 02:05:10,468 INFO L854 garLoopResultBuilder]: At program point L21-3(lines 21 25) the Hoare annotation is: (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 0)) [2022-02-15 02:05:10,469 INFO L861 garLoopResultBuilder]: At program point mainFINAL(lines 12 27) the Hoare annotation is: true [2022-02-15 02:05:10,469 INFO L861 garLoopResultBuilder]: At program point mainENTRY(lines 12 27) the Hoare annotation is: true [2022-02-15 02:05:10,469 INFO L854 garLoopResultBuilder]: At program point L22-2(lines 22 25) the Hoare annotation is: (and (< 0 (+ (div main_~v~0 4294967296) 1)) (<= (div (+ (* (- 1) main_~v~0) 10) (- 4294967296)) 0)) [2022-02-15 02:05:10,469 INFO L861 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 5 10) the Hoare annotation is: true [2022-02-15 02:05:10,469 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 5 10) the Hoare annotation is: (or (<= 2 __VERIFIER_assert_~cond) (and (not (<= 2 |__VERIFIER_assert_#in~cond|)) (not (<= (+ 2 |__VERIFIER_assert_#in~cond|) 0))) (<= (+ 2 __VERIFIER_assert_~cond) 0)) [2022-02-15 02:05:10,469 INFO L854 garLoopResultBuilder]: At program point L7(line 7) the Hoare annotation is: (and (not (<= 2 |__VERIFIER_assert_#in~cond|)) (not (<= (+ 2 |__VERIFIER_assert_#in~cond|) 0))) [2022-02-15 02:05:10,470 INFO L854 garLoopResultBuilder]: At program point L6(lines 6 8) the Hoare annotation is: (or (<= 2 __VERIFIER_assert_~cond) (and (not (<= 2 |__VERIFIER_assert_#in~cond|)) (not (<= (+ 2 |__VERIFIER_assert_#in~cond|) 0))) (<= (+ 2 __VERIFIER_assert_~cond) 0)) [2022-02-15 02:05:10,470 INFO L854 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (or (<= 2 __VERIFIER_assert_~cond) (and (not (<= 2 |__VERIFIER_assert_#in~cond|)) (not (<= (+ 2 |__VERIFIER_assert_#in~cond|) 0))) (<= (+ 2 __VERIFIER_assert_~cond) 0)) [2022-02-15 02:05:10,470 INFO L854 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) the Hoare annotation is: (and (not (<= 2 |__VERIFIER_assert_#in~cond|)) (not (<= (+ 2 |__VERIFIER_assert_#in~cond|) 0))) [2022-02-15 02:05:10,473 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-02-15 02:05:10,474 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 02:05:10,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 02:05:10 BoogieIcfgContainer [2022-02-15 02:05:10,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 02:05:10,495 INFO L158 Benchmark]: Toolchain (without parser) took 2412.42ms. Allocated memory was 180.4MB in the beginning and 247.5MB in the end (delta: 67.1MB). Free memory was 124.9MB in the beginning and 114.3MB in the end (delta: 10.6MB). Peak memory consumption was 77.7MB. Max. memory is 8.0GB. [2022-02-15 02:05:10,496 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 02:05:10,497 INFO L158 Benchmark]: CACSL2BoogieTranslator took 212.71ms. Allocated memory was 180.4MB in the beginning and 247.5MB in the end (delta: 67.1MB). Free memory was 124.7MB in the beginning and 221.2MB in the end (delta: -96.5MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2022-02-15 02:05:10,497 INFO L158 Benchmark]: Boogie Preprocessor took 35.31ms. Allocated memory is still 247.5MB. Free memory was 220.7MB in the beginning and 219.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 02:05:10,499 INFO L158 Benchmark]: RCFGBuilder took 307.93ms. Allocated memory is still 247.5MB. Free memory was 219.1MB in the beginning and 207.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-02-15 02:05:10,499 INFO L158 Benchmark]: TraceAbstraction took 1831.14ms. Allocated memory is still 247.5MB. Free memory was 206.5MB in the beginning and 114.3MB in the end (delta: 92.3MB). Peak memory consumption was 92.3MB. Max. memory is 8.0GB. [2022-02-15 02:05:10,503 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 180.4MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 212.71ms. Allocated memory was 180.4MB in the beginning and 247.5MB in the end (delta: 67.1MB). Free memory was 124.7MB in the beginning and 221.2MB in the end (delta: -96.5MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.31ms. Allocated memory is still 247.5MB. Free memory was 220.7MB in the beginning and 219.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 307.93ms. Allocated memory is still 247.5MB. Free memory was 219.1MB in the beginning and 207.1MB in the end (delta: 12.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1831.14ms. Allocated memory is still 247.5MB. Free memory was 206.5MB in the beginning and 114.3MB in the end (delta: 92.3MB). Peak memory consumption was 92.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 7]: 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, 31 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 121 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 119 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 152 IncrementalHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 84 mSDtfsCounter, 152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 40 PreInvPairs, 67 NumberOfFragments, 310 HoareAnnotationTreeSize, 40 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 28 FomulaSimplificationsInter, 341 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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: 21]: Loop Invariant Derived loop invariant: 0 < v / 4294967296 + 1 && (-1 * v + 10) / -4294967296 <= 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 < v / 4294967296 + 1 && (-1 * v + 10) / -4294967296 <= 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 0 < v / 4294967296 + 1 && (-1 * v + 10) / -4294967296 <= 0 - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: 0 < v / 4294967296 + 1 && (-1 * v + 10) / -4294967296 <= 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 < v / 4294967296 + 1 && (-1 * v + 10) / -4294967296 <= 0 - ProcedureContractResult [Line: 12]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 5]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: (2 <= cond || (!(2 <= \old(cond)) && !(2 + \old(cond) <= 0))) || 2 + cond <= 0 RESULT: Ultimate proved your program to be correct! [2022-02-15 02:05:10,526 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...