/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/acceleratedInterpolationQvasr_64.epf -i ../../../trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-7968f31 [2022-03-18 01:04:03,888 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-18 01:04:03,895 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-18 01:04:03,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-18 01:04:03,962 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-18 01:04:03,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-18 01:04:03,969 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-18 01:04:03,970 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationQvasr_64.epf [2022-03-18 01:04:03,978 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-18 01:04:03,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-18 01:04:03,979 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-18 01:04:03,979 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-18 01:04:03,979 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-18 01:04:03,979 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-18 01:04:03,979 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-18 01:04:03,979 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-18 01:04:03,979 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-18 01:04:03,979 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-18 01:04:03,980 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-18 01:04:03,980 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-18 01:04:03,980 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-18 01:04:03,980 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-18 01:04:03,980 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-18 01:04:03,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 01:04:03,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-18 01:04:03,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-18 01:04:03,980 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-18 01:04:03,980 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-18 01:04:03,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-18 01:04:03,981 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=QVASR [2022-03-18 01:04:03,981 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-18 01:04:04,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-18 01:04:04,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-18 01:04:04,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-18 01:04:04,179 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-18 01:04:04,179 INFO L275 PluginConnector]: CDTParser initialized [2022-03-18 01:04:04,180 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i [2022-03-18 01:04:04,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5356f96e4/19ff846e4d38490ba3b97dc7ace46d5f/FLAG68c9f0a51 [2022-03-18 01:04:04,599 INFO L306 CDTParser]: Found 1 translation units. [2022-03-18 01:04:04,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i [2022-03-18 01:04:04,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5356f96e4/19ff846e4d38490ba3b97dc7ace46d5f/FLAG68c9f0a51 [2022-03-18 01:04:04,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5356f96e4/19ff846e4d38490ba3b97dc7ace46d5f [2022-03-18 01:04:04,618 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-18 01:04:04,620 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-18 01:04:04,622 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-18 01:04:04,622 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-18 01:04:04,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-18 01:04:04,625 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,626 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c0ef12e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04, skipping insertion in model container [2022-03-18 01:04:04,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,631 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-18 01:04:04,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-18 01:04:04,800 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i[872,885] [2022-03-18 01:04:04,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 01:04:04,816 INFO L203 MainTranslator]: Completed pre-run [2022-03-18 01:04:04,825 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-zilu/benchmark51_polynomial.i[872,885] [2022-03-18 01:04:04,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-18 01:04:04,839 INFO L208 MainTranslator]: Completed translation [2022-03-18 01:04:04,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04 WrapperNode [2022-03-18 01:04:04,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-18 01:04:04,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-18 01:04:04,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-18 01:04:04,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-18 01:04:04,861 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,861 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,866 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,866 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,879 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,882 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,882 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,883 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-18 01:04:04,884 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-18 01:04:04,884 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-18 01:04:04,884 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-18 01:04:04,886 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04" (1/1) ... [2022-03-18 01:04:04,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-18 01:04:04,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-18 01:04:04,926 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) [2022-03-18 01:04:04,942 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 [2022-03-18 01:04:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-18 01:04:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-18 01:04:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-18 01:04:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-03-18 01:04:04,956 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-18 01:04:04,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-18 01:04:05,002 INFO L234 CfgBuilder]: Building ICFG [2022-03-18 01:04:05,003 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-18 01:04:05,137 INFO L275 CfgBuilder]: Performing block encoding [2022-03-18 01:04:05,141 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-18 01:04:05,141 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-03-18 01:04:05,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 01:04:05 BoogieIcfgContainer [2022-03-18 01:04:05,142 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-18 01:04:05,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-18 01:04:05,144 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-18 01:04:05,161 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-18 01:04:05,161 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.03 01:04:04" (1/3) ... [2022-03-18 01:04:05,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73939260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 01:04:05, skipping insertion in model container [2022-03-18 01:04:05,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.03 01:04:04" (2/3) ... [2022-03-18 01:04:05,162 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73939260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.03 01:04:05, skipping insertion in model container [2022-03-18 01:04:05,162 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.03 01:04:05" (3/3) ... [2022-03-18 01:04:05,163 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark51_polynomial.i [2022-03-18 01:04:05,166 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-18 01:04:05,167 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-18 01:04:05,216 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-18 01:04:05,221 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, 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 [2022-03-18 01:04:05,221 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-18 01:04:05,244 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 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) [2022-03-18 01:04:05,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-18 01:04:05,248 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 01:04:05,249 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 01:04:05,249 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 01:04:05,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 01:04:05,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1963310820, now seen corresponding path program 1 times [2022-03-18 01:04:05,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 01:04:05,260 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [955939518] [2022-03-18 01:04:05,267 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 01:04:05,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1963310820, now seen corresponding path program 2 times [2022-03-18 01:04:05,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 01:04:05,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096332162] [2022-03-18 01:04:05,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 01:04:05,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 01:04:05,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 01:04:05,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 01:04:05,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 01:04:05,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 01:04:05,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 01:04:05,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096332162] [2022-03-18 01:04:05,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096332162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 01:04:05,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 01:04:05,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-18 01:04:05,436 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 01:04:05,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [955939518] [2022-03-18 01:04:05,436 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [955939518] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 01:04:05,436 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 01:04:05,436 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-18 01:04:05,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448938884] [2022-03-18 01:04:05,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 01:04:05,442 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-18 01:04:05,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 01:04:05,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-18 01:04:05,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-18 01:04:05,466 INFO L87 Difference]: Start difference. First operand has 22 states, 14 states have (on average 1.5) internal successors, (21), 15 states have internal predecessors, (21), 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 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-03-18 01:04:05,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 01:04:05,500 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2022-03-18 01:04:05,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-18 01:04:05,504 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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 12 [2022-03-18 01:04:05,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 01:04:05,508 INFO L225 Difference]: With dead ends: 34 [2022-03-18 01:04:05,508 INFO L226 Difference]: Without dead ends: 15 [2022-03-18 01:04:05,509 INFO L911 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 [2022-03-18 01:04:05,512 INFO L912 BasicCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 27 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 [2022-03-18 01:04:05,512 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 27 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 01:04:05,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-03-18 01:04:05,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-03-18 01:04:05,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 10 states have (on average 1.3) internal successors, (13), 10 states have internal predecessors, (13), 3 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) [2022-03-18 01:04:05,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-03-18 01:04:05,540 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-03-18 01:04:05,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 01:04:05,540 INFO L478 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-03-18 01:04:05,541 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-03-18 01:04:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-03-18 01:04:05,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-03-18 01:04:05,542 INFO L492 BasicCegarLoop]: Found error trace [2022-03-18 01:04:05,542 INFO L500 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-18 01:04:05,542 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-18 01:04:05,542 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-18 01:04:05,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-18 01:04:05,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1978087156, now seen corresponding path program 1 times [2022-03-18 01:04:05,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-18 01:04:05,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1248936863] [2022-03-18 01:04:05,546 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-18 01:04:05,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1978087156, now seen corresponding path program 2 times [2022-03-18 01:04:05,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-18 01:04:05,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953648773] [2022-03-18 01:04:05,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-18 01:04:05,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-18 01:04:05,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 01:04:05,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-18 01:04:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-18 01:04:05,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-18 01:04:05,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-18 01:04:05,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953648773] [2022-03-18 01:04:05,660 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953648773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 01:04:05,660 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 01:04:05,660 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 01:04:05,661 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-18 01:04:05,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1248936863] [2022-03-18 01:04:05,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1248936863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-18 01:04:05,661 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-18 01:04:05,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-18 01:04:05,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204457196] [2022-03-18 01:04:05,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-18 01:04:05,662 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-18 01:04:05,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-18 01:04:05,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-18 01:04:05,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-18 01:04:05,663 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-03-18 01:04:05,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-18 01:04:05,723 INFO L93 Difference]: Finished difference Result 21 states and 26 transitions. [2022-03-18 01:04:05,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-18 01:04:05,724 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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 12 [2022-03-18 01:04:05,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-18 01:04:05,724 INFO L225 Difference]: With dead ends: 21 [2022-03-18 01:04:05,725 INFO L226 Difference]: Without dead ends: 0 [2022-03-18 01:04:05,725 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-03-18 01:04:05,726 INFO L912 BasicCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-18 01:04:05,727 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 27 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-18 01:04:05,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-18 01:04:05,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-18 01:04:05,728 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) [2022-03-18 01:04:05,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-18 01:04:05,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2022-03-18 01:04:05,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-18 01:04:05,728 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-18 01:04:05,728 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-03-18 01:04:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-18 01:04:05,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-18 01:04:05,731 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-18 01:04:05,731 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-18 01:04:05,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-18 01:04:05,798 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2022-03-18 01:04:05,798 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 11) no Hoare annotation was computed. [2022-03-18 01:04:05,798 INFO L882 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2022-03-18 01:04:05,798 INFO L885 garLoopResultBuilder]: At program point L27(line 27) the Hoare annotation is: true [2022-03-18 01:04:05,798 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 19 29) the Hoare annotation is: true [2022-03-18 01:04:05,798 INFO L878 garLoopResultBuilder]: At program point L23(line 23) the Hoare annotation is: (and (<= 0 main_~x~0) (<= main_~x~0 50)) [2022-03-18 01:04:05,799 INFO L885 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: true [2022-03-18 01:04:05,799 INFO L878 garLoopResultBuilder]: At program point L23-2(lines 22 26) the Hoare annotation is: (and (<= 0 main_~x~0) (<= main_~x~0 50)) [2022-03-18 01:04:05,799 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 19 29) the Hoare annotation is: true [2022-03-18 01:04:05,799 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 19 29) the Hoare annotation is: true [2022-03-18 01:04:05,799 INFO L878 garLoopResultBuilder]: At program point L24-1(lines 22 26) the Hoare annotation is: (and (<= 0 main_~x~0) (<= main_~x~0 50)) [2022-03-18 01:04:05,799 INFO L878 garLoopResultBuilder]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (<= 0 main_~x~0) (<= main_~x~0 50)) [2022-03-18 01:04:05,799 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2022-03-18 01:04:05,800 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-18 01:04:05,800 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2022-03-18 01:04:05,800 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-18 01:04:05,800 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-03-18 01:04:05,800 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-18 01:04:05,800 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-18 01:04:05,800 INFO L878 garLoopResultBuilder]: At program point L16(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-03-18 01:04:05,800 INFO L878 garLoopResultBuilder]: At program point L15(lines 15 17) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2022-03-18 01:04:05,801 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 18) the Hoare annotation is: true [2022-03-18 01:04:05,801 INFO L885 garLoopResultBuilder]: At program point L15-2(lines 14 18) the Hoare annotation is: true [2022-03-18 01:04:05,801 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertEXIT(lines 14 18) the Hoare annotation is: true [2022-03-18 01:04:05,801 INFO L878 garLoopResultBuilder]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2022-03-18 01:04:05,804 INFO L718 BasicCegarLoop]: Path program histogram: [2, 2] [2022-03-18 01:04:05,805 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-18 01:04:05,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.03 01:04:05 BoogieIcfgContainer [2022-03-18 01:04:05,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-18 01:04:05,817 INFO L158 Benchmark]: Toolchain (without parser) took 1196.46ms. Allocated memory is still 180.4MB. Free memory was 131.6MB in the beginning and 107.2MB in the end (delta: 24.4MB). Peak memory consumption was 24.2MB. Max. memory is 8.0GB. [2022-03-18 01:04:05,817 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-18 01:04:05,817 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.51ms. Allocated memory is still 180.4MB. Free memory was 131.5MB in the beginning and 157.4MB in the end (delta: -26.0MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. [2022-03-18 01:04:05,818 INFO L158 Benchmark]: Boogie Preprocessor took 43.48ms. Allocated memory is still 180.4MB. Free memory was 157.4MB in the beginning and 155.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-18 01:04:05,818 INFO L158 Benchmark]: RCFGBuilder took 258.39ms. Allocated memory is still 180.4MB. Free memory was 155.9MB in the beginning and 146.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-18 01:04:05,818 INFO L158 Benchmark]: TraceAbstraction took 672.60ms. Allocated memory is still 180.4MB. Free memory was 145.5MB in the beginning and 107.2MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. Max. memory is 8.0GB. [2022-03-18 01:04:05,820 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 147.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 217.51ms. Allocated memory is still 180.4MB. Free memory was 131.5MB in the beginning and 157.4MB in the end (delta: -26.0MB). Peak memory consumption was 10.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 43.48ms. Allocated memory is still 180.4MB. Free memory was 157.4MB in the beginning and 155.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 258.39ms. Allocated memory is still 180.4MB. Free memory was 155.9MB in the beginning and 146.0MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 672.60ms. Allocated memory is still 180.4MB. Free memory was 145.5MB in the beginning and 107.2MB in the end (delta: 38.3MB). Peak memory consumption was 38.8MB. 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: 16]: 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, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 25 mSDsluCounter, 54 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 20 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 26 IncrementalHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 34 mSDtfsCounter, 26 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 9, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 22 LocationsWithAnnotation, 34 PreInvPairs, 47 NumberOfFragments, 63 HoareAnnotationTreeSize, 34 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 22 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s 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: 22]: Loop Invariant Derived loop invariant: 0 <= x && x <= 50 - ProcedureContractResult [Line: 19]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 RESULT: Ultimate proved your program to be correct! [2022-03-18 01:04:05,851 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...