/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/linear_sea.ch.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-6c470ae [2022-02-15 01:11:46,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-15 01:11:46,105 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-15 01:11:46,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-15 01:11:46,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-15 01:11:46,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-15 01:11:46,186 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-15 01:11:46,190 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 01:11:46,200 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-15 01:11:46,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-15 01:11:46,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-15 01:11:46,201 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-15 01:11:46,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-15 01:11:46,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-15 01:11:46,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-15 01:11:46,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-15 01:11:46,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-15 01:11:46,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-15 01:11:46,202 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-15 01:11:46,202 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-15 01:11:46,202 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-15 01:11:46,202 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-15 01:11:46,202 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-15 01:11:46,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-15 01:11:46,203 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-15 01:11:46,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-15 01:11:46,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 01:11:46,203 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-15 01:11:46,203 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2022-02-15 01:11:46,203 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-15 01:11:46,203 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-02-15 01:11:46,203 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-02-15 01:11:46,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-15 01:11:46,410 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-15 01:11:46,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-15 01:11:46,413 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-15 01:11:46,414 INFO L275 PluginConnector]: CDTParser initialized [2022-02-15 01:11:46,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/linear_sea.ch.c [2022-02-15 01:11:46,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fef62aac/fccf59f98c12475081b1a3a1c43eadc6/FLAG108665d25 [2022-02-15 01:11:46,849 INFO L306 CDTParser]: Found 1 translation units. [2022-02-15 01:11:46,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/linear_sea.ch.c [2022-02-15 01:11:46,853 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fef62aac/fccf59f98c12475081b1a3a1c43eadc6/FLAG108665d25 [2022-02-15 01:11:46,867 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1fef62aac/fccf59f98c12475081b1a3a1c43eadc6 [2022-02-15 01:11:46,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-15 01:11:46,871 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-15 01:11:46,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-15 01:11:46,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-15 01:11:46,876 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-15 01:11:46,876 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:11:46" (1/1) ... [2022-02-15 01:11:46,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b688306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:46, skipping insertion in model container [2022-02-15 01:11:46,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 01:11:46" (1/1) ... [2022-02-15 01:11:46,882 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-15 01:11:46,894 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-15 01:11:47,003 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/linear_sea.ch.c[383,396] [2022-02-15 01:11:47,018 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 01:11:47,024 INFO L203 MainTranslator]: Completed pre-run [2022-02-15 01:11:47,043 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/linear_sea.ch.c[383,396] [2022-02-15 01:11:47,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-15 01:11:47,055 INFO L208 MainTranslator]: Completed translation [2022-02-15 01:11:47,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47 WrapperNode [2022-02-15 01:11:47,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-15 01:11:47,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-15 01:11:47,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-15 01:11:47,075 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-15 01:11:47,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47" (1/1) ... [2022-02-15 01:11:47,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47" (1/1) ... [2022-02-15 01:11:47,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47" (1/1) ... [2022-02-15 01:11:47,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47" (1/1) ... [2022-02-15 01:11:47,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47" (1/1) ... [2022-02-15 01:11:47,096 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47" (1/1) ... [2022-02-15 01:11:47,097 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47" (1/1) ... [2022-02-15 01:11:47,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-15 01:11:47,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-15 01:11:47,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-15 01:11:47,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-15 01:11:47,104 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47" (1/1) ... [2022-02-15 01:11:47,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-15 01:11:47,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-15 01:11:47,155 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 01:11:47,227 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 01:11:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-02-15 01:11:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-15 01:11:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-02-15 01:11:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-02-15 01:11:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure linear_search [2022-02-15 01:11:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-02-15 01:11:47,254 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-02-15 01:11:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-02-15 01:11:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-02-15 01:11:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-02-15 01:11:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-15 01:11:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2022-02-15 01:11:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-02-15 01:11:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2022-02-15 01:11:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure linear_search [2022-02-15 01:11:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-15 01:11:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-02-15 01:11:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-02-15 01:11:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-02-15 01:11:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-15 01:11:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-02-15 01:11:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-15 01:11:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-15 01:11:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-15 01:11:47,313 INFO L234 CfgBuilder]: Building ICFG [2022-02-15 01:11:47,314 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-15 01:11:47,418 INFO L275 CfgBuilder]: Performing block encoding [2022-02-15 01:11:47,422 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-15 01:11:47,422 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-02-15 01:11:47,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:11:47 BoogieIcfgContainer [2022-02-15 01:11:47,424 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-15 01:11:47,425 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-15 01:11:47,425 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-15 01:11:47,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-15 01:11:47,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 01:11:46" (1/3) ... [2022-02-15 01:11:47,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f67229c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:11:47, skipping insertion in model container [2022-02-15 01:11:47,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 01:11:47" (2/3) ... [2022-02-15 01:11:47,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f67229c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 01:11:47, skipping insertion in model container [2022-02-15 01:11:47,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 01:11:47" (3/3) ... [2022-02-15 01:11:47,436 INFO L111 eAbstractionObserver]: Analyzing ICFG linear_sea.ch.c [2022-02-15 01:11:47,440 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-02-15 01:11:47,440 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-15 01:11:47,482 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-15 01:11:47,487 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 01:11:47,487 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-02-15 01:11:47,497 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 22 states have internal predecessors, (28), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-02-15 01:11:47,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-02-15 01:11:47,505 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 01:11:47,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 01:11:47,506 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 01:11:47,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 01:11:47,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1307815669, now seen corresponding path program 1 times [2022-02-15 01:11:47,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 01:11:47,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1394472260] [2022-02-15 01:11:47,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 01:11:47,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 01:11:47,594 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 01:11:47,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:47,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 01:11:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 01:11:47,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:47,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-15 01:11:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:47,843 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 01:11:47,845 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 01:11:47,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1394472260] [2022-02-15 01:11:47,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1394472260] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 01:11:47,849 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 01:11:47,849 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-15 01:11:47,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538124210] [2022-02-15 01:11:47,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 01:11:47,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-15 01:11:47,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 01:11:47,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-15 01:11:47,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-15 01:11:47,884 INFO L87 Difference]: Start difference. First operand has 33 states, 21 states have (on average 1.3333333333333333) internal successors, (28), 22 states have internal predecessors, (28), 5 states have call successors, (5), 5 states have call predecessors, (5), 5 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-02-15 01:11:48,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 01:11:48,011 INFO L93 Difference]: Finished difference Result 51 states and 58 transitions. [2022-02-15 01:11:48,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-15 01:11:48,014 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2022-02-15 01:11:48,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 01:11:48,025 INFO L225 Difference]: With dead ends: 51 [2022-02-15 01:11:48,025 INFO L226 Difference]: Without dead ends: 26 [2022-02-15 01:11:48,029 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 01:11:48,032 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 01:11:48,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 37 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 01:11:48,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-02-15 01:11:48,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-02-15 01:11:48,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.1764705882352942) internal successors, (20), 17 states have internal predecessors, (20), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 01:11:48,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2022-02-15 01:11:48,080 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 23 [2022-02-15 01:11:48,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 01:11:48,080 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2022-02-15 01:11:48,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-02-15 01:11:48,081 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2022-02-15 01:11:48,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-02-15 01:11:48,082 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 01:11:48,082 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 01:11:48,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-15 01:11:48,084 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 01:11:48,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 01:11:48,086 INFO L85 PathProgramCache]: Analyzing trace with hash -1795654780, now seen corresponding path program 1 times [2022-02-15 01:11:48,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 01:11:48,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1948986500] [2022-02-15 01:11:48,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 01:11:48,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 01:11:48,099 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 01:11:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:48,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 01:11:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:48,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 01:11:48,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:48,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-15 01:11:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:48,353 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 01:11:48,354 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 01:11:48,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1948986500] [2022-02-15 01:11:48,356 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [1948986500] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 01:11:48,357 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 01:11:48,357 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 01:11:48,357 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367019446] [2022-02-15 01:11:48,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 01:11:48,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 01:11:48,359 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 01:11:48,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 01:11:48,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-02-15 01:11:48,360 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-02-15 01:11:48,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 01:11:48,550 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-02-15 01:11:48,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-15 01:11:48,550 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 25 [2022-02-15 01:11:48,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 01:11:48,551 INFO L225 Difference]: With dead ends: 34 [2022-02-15 01:11:48,551 INFO L226 Difference]: Without dead ends: 26 [2022-02-15 01:11:48,552 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-02-15 01:11:48,552 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 33 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-15 01:11:48,553 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 48 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-15 01:11:48,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-02-15 01:11:48,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2022-02-15 01:11:48,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 01:11:48,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2022-02-15 01:11:48,557 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 25 [2022-02-15 01:11:48,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 01:11:48,558 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2022-02-15 01:11:48,558 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 5 states have internal predecessors, (17), 2 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-02-15 01:11:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2022-02-15 01:11:48,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-02-15 01:11:48,558 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 01:11:48,558 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 01:11:48,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-15 01:11:48,559 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 01:11:48,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 01:11:48,559 INFO L85 PathProgramCache]: Analyzing trace with hash -52844445, now seen corresponding path program 1 times [2022-02-15 01:11:48,559 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 01:11:48,559 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [41091849] [2022-02-15 01:11:48,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 01:11:48,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 01:11:48,575 INFO L274 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-02-15 01:11:48,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 01:11:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 01:11:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:48,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-15 01:11:48,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:48,755 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 01:11:48,756 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 01:11:48,756 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [41091849] [2022-02-15 01:11:48,756 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [41091849] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 01:11:48,756 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 01:11:48,756 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-15 01:11:48,756 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880115448] [2022-02-15 01:11:48,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 01:11:48,757 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-02-15 01:11:48,757 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 01:11:48,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-02-15 01:11:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-02-15 01:11:48,758 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-15 01:11:50,892 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 01:11:51,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 01:11:51,213 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2022-02-15 01:11:51,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-02-15 01:11:51,213 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2022-02-15 01:11:51,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 01:11:51,214 INFO L225 Difference]: With dead ends: 39 [2022-02-15 01:11:51,214 INFO L226 Difference]: Without dead ends: 30 [2022-02-15 01:11:51,214 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2022-02-15 01:11:51,215 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 59 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 20 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-02-15 01:11:51,215 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 36 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 83 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2022-02-15 01:11:51,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-02-15 01:11:51,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2022-02-15 01:11:51,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 01:11:51,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-02-15 01:11:51,223 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 25 [2022-02-15 01:11:51,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 01:11:51,223 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-02-15 01:11:51,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 6 states have internal predecessors, (17), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-02-15 01:11:51,224 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-02-15 01:11:51,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-02-15 01:11:51,224 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 01:11:51,224 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 01:11:51,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-15 01:11:51,225 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 01:11:51,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 01:11:51,225 INFO L85 PathProgramCache]: Analyzing trace with hash -238208460, now seen corresponding path program 1 times [2022-02-15 01:11:51,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 01:11:51,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [410860140] [2022-02-15 01:11:51,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 01:11:51,967 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 01:11:51,968 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 01:11:51,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 01:11:51,986 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_13 (* (- 4294967296) .aux_div_v_it_1_50.1) (* (- 1) .aux_mod_v_it_1_50.0) 1) 0)) [2022-02-15 01:11:51,986 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_50.1) .aux_mod_v_it_1_50.0 (* (- 1) linear_search_~j~0_14) 1) 0)) [2022-02-15 01:11:51,986 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= linear_search_~q_13 (select (select |#memory_int_11| linear_search_~a.base_13) (+ (* 4 .aux_mod_v_it_1_50.0) (* (- 17179869184) (div .aux_mod_v_it_1_50.0 4294967296)) linear_search_~a.offset_13 (- 17179869184))))) [2022-02-15 01:11:51,988 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_13 (* (- 4294967296) .aux_div_v_it_1_50.3) (* (- 1) .aux_mod_v_it_1_50.2) 1) 0)) [2022-02-15 01:11:51,988 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_50.3) .aux_mod_v_it_1_50.2 (* (- 1) linear_search_~j~0_14) 1) 0)) [2022-02-15 01:11:51,988 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= linear_search_~q_13 (select (select |#memory_int_11| linear_search_~a.base_13) (+ (* 4 .aux_mod_v_it_1_50.2) (* (- 17179869184) (div .aux_mod_v_it_1_50.2 4294967296)) linear_search_~a.offset_13)))) [2022-02-15 01:11:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:52,053 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_13 (* (- 4294967296) .aux_div_v_it_1_50.10) (* (- 1) .aux_mod_v_it_1_50.9) 1) 0)) [2022-02-15 01:11:52,054 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_50.10) .aux_mod_v_it_1_50.9 (* (- 1) linear_search_~j~0_14) 1) 0)) [2022-02-15 01:11:52,054 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= linear_search_~q_13 (select (select |#memory_int_11| linear_search_~a.base_13) (+ (* 4 .aux_mod_v_it_1_50.9) (* (- 17179869184) (div .aux_mod_v_it_1_50.9 4294967296)) linear_search_~a.offset_13 (- 17179869184))))) [2022-02-15 01:11:52,054 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_13 (* (- 4294967296) .aux_div_v_it_1_50.12) (* (- 1) .aux_mod_v_it_1_50.11) 1) 0)) [2022-02-15 01:11:52,054 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_50.12) .aux_mod_v_it_1_50.11 (* (- 1) linear_search_~j~0_14) 1) 0)) [2022-02-15 01:11:52,054 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= linear_search_~q_13 (select (select |#memory_int_11| linear_search_~a.base_13) (+ (* 4 .aux_mod_v_it_1_50.11) (* (- 17179869184) (div .aux_mod_v_it_1_50.11 4294967296)) linear_search_~a.offset_13)))) [2022-02-15 01:11:52,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-02-15 01:11:52,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:52,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-02-15 01:11:52,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:52,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-02-15 01:11:52,286 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_0 (* (- 4294967296) .aux_div_v_it_1_50.15) (* (- 1) .aux_mod_v_it_1_50.14) 1) 0)) [2022-02-15 01:11:52,287 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_50.15) .aux_mod_v_it_1_50.14 (* (- 1) linear_search_~j~0_1) 1) 0)) [2022-02-15 01:11:52,287 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= linear_search_~q_0 (select (select |#memory_int_-2| linear_search_~a.base_0) (+ (* 4 .aux_mod_v_it_1_50.14) (* (- 17179869184) (div .aux_mod_v_it_1_50.14 4294967296)) linear_search_~a.offset_0 (- 17179869184))))) [2022-02-15 01:11:52,287 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_0 (* (- 4294967296) .aux_div_v_it_1_50.17) (* (- 1) .aux_mod_v_it_1_50.16) 1) 0)) [2022-02-15 01:11:52,287 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_50.17) .aux_mod_v_it_1_50.16 (* (- 1) linear_search_~j~0_1) 1) 0)) [2022-02-15 01:11:52,287 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= linear_search_~q_0 (select (select |#memory_int_-2| linear_search_~a.base_0) (+ (* 4 .aux_mod_v_it_1_50.16) (* (- 17179869184) (div .aux_mod_v_it_1_50.16 4294967296)) linear_search_~a.offset_0)))) [2022-02-15 01:11:52,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-15 01:11:52,310 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_0 (* (- 4294967296) .aux_div_v_it_1_50.31) (* (- 1) .aux_mod_v_it_1_50.30) 1) 0)) [2022-02-15 01:11:52,310 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_50.31) .aux_mod_v_it_1_50.30 (* (- 1) linear_search_~j~0_1) 1) 0)) [2022-02-15 01:11:52,310 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= linear_search_~q_0 (select (select |#memory_int_-2| linear_search_~a.base_0) (+ (* 4 .aux_mod_v_it_1_50.30) (* (- 17179869184) (div .aux_mod_v_it_1_50.30 4294967296)) linear_search_~a.offset_0 (- 17179869184))))) [2022-02-15 01:11:52,311 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_0 (* (- 4294967296) .aux_div_v_it_1_50.33) (* (- 1) .aux_mod_v_it_1_50.32) 1) 0)) [2022-02-15 01:11:52,312 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_1_50.33) .aux_mod_v_it_1_50.32 (* (- 1) linear_search_~j~0_1) 1) 0)) [2022-02-15 01:11:52,312 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= linear_search_~q_0 (select (select |#memory_int_-2| linear_search_~a.base_0) (+ (* 4 .aux_mod_v_it_1_50.32) (* (- 17179869184) (div .aux_mod_v_it_1_50.32 4294967296)) linear_search_~a.offset_0)))) [2022-02-15 01:11:52,846 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 01:11:53,445 INFO L144 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2022-02-15 01:11:53,445 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [410860140] [2022-02-15 01:11:53,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModulePreferences [410860140] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-15 01:11:53,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-15 01:11:53,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-02-15 01:11:53,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638003649] [2022-02-15 01:11:53,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-15 01:11:53,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-15 01:11:53,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2022-02-15 01:11:53,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-15 01:11:53,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2022-02-15 01:11:53,447 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 20 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 01:11:55,608 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-02-15 01:11:56,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-15 01:11:56,509 INFO L93 Difference]: Finished difference Result 41 states and 43 transitions. [2022-02-15 01:11:56,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-15 01:11:56,509 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 28 [2022-02-15 01:11:56,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-15 01:11:56,510 INFO L225 Difference]: With dead ends: 41 [2022-02-15 01:11:56,510 INFO L226 Difference]: Without dead ends: 32 [2022-02-15 01:11:56,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=739, Unknown=0, NotChecked=0, Total=870 [2022-02-15 01:11:56,511 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 37 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 31 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-02-15 01:11:56,511 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [38 Valid, 52 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 227 Invalid, 1 Unknown, 19 Unchecked, 2.4s Time] [2022-02-15 01:11:56,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-02-15 01:11:56,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-02-15 01:11:56,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 5 states have call successors, (5), 5 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 01:11:56,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2022-02-15 01:11:56,518 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 28 [2022-02-15 01:11:56,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-15 01:11:56,518 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2022-02-15 01:11:56,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 16 states have (on average 1.25) internal successors, (20), 16 states have internal predecessors, (20), 4 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-02-15 01:11:56,518 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2022-02-15 01:11:56,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-02-15 01:11:56,519 INFO L506 BasicCegarLoop]: Found error trace [2022-02-15 01:11:56,519 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-15 01:11:56,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-15 01:11:56,519 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-02-15 01:11:56,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-15 01:11:56,519 INFO L85 PathProgramCache]: Analyzing trace with hash -631235470, now seen corresponding path program 1 times [2022-02-15 01:11:56,519 INFO L126 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2022-02-15 01:11:56,520 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73798594] [2022-02-15 01:11:56,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-15 01:11:57,191 INFO L89 AcceleratorJordan]: Jordan loop acceleration statistics: 3 HavocedVariables, 1 AssignedVariables, 0 ReadonlyVariables, Eigenvalues: {1={2=1}}, 1 SequentialAcceleration, 0 AlternatingAcceleration, 0 QuantifierFreeResult [2022-02-15 01:11:57,192 INFO L262 tedInterpolationCore]: Starting analysis with loop acceleration approximation PRECISE [2022-02-15 01:11:57,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-15 01:11:57,203 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_13 (* (- 4294967296) .aux_div_v_it_2_51.0) (* (- 1) .aux_mod_v_it_2_51.1) 1) 0)) [2022-02-15 01:11:57,203 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= linear_search_~q_13 (select (select |#memory_int_11| linear_search_~a.base_13) (+ (* 4 .aux_mod_v_it_2_51.1) (* (- 17179869184) (div .aux_mod_v_it_2_51.1 4294967296)) linear_search_~a.offset_13 (- 17179869184))))) [2022-02-15 01:11:57,203 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_2_51.0) .aux_mod_v_it_2_51.1 (* (- 1) linear_search_~j~0_14) 1) 0)) [2022-02-15 01:11:57,204 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ linear_search_~j~0_13 (* (- 4294967296) .aux_div_v_it_2_51.2) (* (- 1) .aux_mod_v_it_2_51.3) 1) 0)) [2022-02-15 01:11:57,204 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (= (select (select |#memory_int_11| linear_search_~a.base_13) (+ (* 4 .aux_mod_v_it_2_51.3) (* (- 17179869184) (div .aux_mod_v_it_2_51.3 4294967296)) linear_search_~a.offset_13)) linear_search_~q_13)) [2022-02-15 01:11:57,204 WARN L250 erpolLogProxyWrapper]: Quant: Clause contains literal that is not almost uninterpreted: (not (<= (+ (* 4294967296 .aux_div_v_it_2_51.2) .aux_mod_v_it_2_51.3 (* (- 1) linear_search_~j~0_14) 1) 0)) [2022-02-15 01:11:57,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2022-02-15 01:11:57,223 WARN L132 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2022-02-15 01:11:57,224 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2022-02-15 01:11:57,227 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-02-15 01:11:57,229 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-15 01:11:57,231 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-02-15 01:11:57,232 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-15 01:11:57,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.02 01:11:57 BoogieIcfgContainer [2022-02-15 01:11:57,242 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-15 01:11:57,242 INFO L158 Benchmark]: Toolchain (without parser) took 10370.86ms. Allocated memory was 190.8MB in the beginning and 252.7MB in the end (delta: 61.9MB). Free memory was 135.6MB in the beginning and 176.9MB in the end (delta: -41.2MB). Peak memory consumption was 21.4MB. Max. memory is 8.0GB. [2022-02-15 01:11:57,242 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory was 151.7MB in the beginning and 151.6MB in the end (delta: 89.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-15 01:11:57,242 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.73ms. Allocated memory was 190.8MB in the beginning and 252.7MB in the end (delta: 61.9MB). Free memory was 135.5MB in the beginning and 226.0MB in the end (delta: -90.5MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. [2022-02-15 01:11:57,243 INFO L158 Benchmark]: Boogie Preprocessor took 41.68ms. Allocated memory is still 252.7MB. Free memory was 226.0MB in the beginning and 224.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-15 01:11:57,243 INFO L158 Benchmark]: RCFGBuilder took 324.90ms. Allocated memory is still 252.7MB. Free memory was 224.5MB in the beginning and 211.4MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2022-02-15 01:11:57,243 INFO L158 Benchmark]: TraceAbstraction took 9816.70ms. Allocated memory is still 252.7MB. Free memory was 210.9MB in the beginning and 176.9MB in the end (delta: 34.0MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. [2022-02-15 01:11:57,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 190.8MB. Free memory was 151.7MB in the beginning and 151.6MB in the end (delta: 89.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 182.73ms. Allocated memory was 190.8MB in the beginning and 252.7MB in the end (delta: 61.9MB). Free memory was 135.5MB in the beginning and 226.0MB in the end (delta: -90.5MB). Peak memory consumption was 12.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 41.68ms. Allocated memory is still 252.7MB. Free memory was 226.0MB in the beginning and 224.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 324.90ms. Allocated memory is still 252.7MB. Free memory was 224.5MB in the beginning and 211.4MB in the end (delta: 13.2MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * TraceAbstraction took 9816.70ms. Allocated memory is still 252.7MB. Free memory was 210.9MB in the beginning and 176.9MB in the end (delta: 34.0MB). Peak memory consumption was 35.6MB. 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 - UnprovableResult [Line: 8]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L13] unsigned int SIZE; [L14] const unsigned int MAX = 100000; [L24] SIZE=(__VERIFIER_nondet_uint()/8)+1 [L26] COND TRUE SIZE > 1 && SIZE < MAX [L27] EXPR, FCALL calloc(SIZE,sizeof(int)) [L27] int *a = calloc(SIZE,sizeof(int)); [L28] a[SIZE/2]=3 [L29] CALL, EXPR linear_search(a,SIZE,3) [L16] unsigned int j=0; [L17] j