/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/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-5d317bd [2022-03-19 02:49:44,189 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-19 02:49:44,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-19 02:49:44,227 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-19 02:49:44,227 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-19 02:49:44,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-19 02:49:44,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-19 02:49:44,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-19 02:49:44,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-19 02:49:44,237 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-19 02:49:44,238 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-19 02:49:44,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-19 02:49:44,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-19 02:49:44,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-19 02:49:44,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-19 02:49:44,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-19 02:49:44,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-19 02:49:44,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-19 02:49:44,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-19 02:49:44,251 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-19 02:49:44,252 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-03-19 02:49:44,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-19 02:49:44,253 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-19 02:49:44,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-19 02:49:44,254 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-19 02:49:44,256 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-19 02:49:44,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-19 02:49:44,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-19 02:49:44,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-19 02:49:44,257 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-19 02:49:44,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-19 02:49:44,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-19 02:49:44,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-19 02:49:44,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-19 02:49:44,258 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-19 02:49:44,259 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-19 02:49:44,259 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-19 02:49:44,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-19 02:49:44,260 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-19 02:49:44,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-19 02:49:44,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-19 02:49:44,261 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-19 02:49:44,261 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationJordan_32.epf [2022-03-19 02:49:44,267 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-19 02:49:44,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-19 02:49:44,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-19 02:49:44,268 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-19 02:49:44,268 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-19 02:49:44,268 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-19 02:49:44,268 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-19 02:49:44,268 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-19 02:49:44,268 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-19 02:49:44,268 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-19 02:49:44,269 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-19 02:49:44,269 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-19 02:49:44,269 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-19 02:49:44,269 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-19 02:49:44,269 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-19 02:49:44,269 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-19 02:49:44,269 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-19 02:49:44,269 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-19 02:49:44,269 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 02:49:44,270 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-19 02:49:44,270 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-19 02:49:44,270 INFO L138 SettingsManager]: * Trace refinement strategy=ACCELERATED_INTERPOLATION [2022-03-19 02:49:44,270 INFO L138 SettingsManager]: * Trace refinement strategy used in Accelerated Interpolation=CAMEL [2022-03-19 02:49:44,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-19 02:49:44,270 INFO L138 SettingsManager]: * Loop acceleration method that is used by accelerated interpolation=JORDAN [2022-03-19 02:49:44,270 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-03-19 02:49:44,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-19 02:49:44,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-19 02:49:44,458 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-19 02:49:44,459 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-19 02:49:44,463 INFO L275 PluginConnector]: CDTParser initialized [2022-03-19 02:49:44,464 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2022-03-19 02:49:44,525 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc6a4f3a/7c95999b185846838d205c5bcaa7dd40/FLAG2847ae15f [2022-03-19 02:49:44,909 INFO L306 CDTParser]: Found 1 translation units. [2022-03-19 02:49:44,910 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/aiob_4.c.v+lhb-reducer.c [2022-03-19 02:49:44,918 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc6a4f3a/7c95999b185846838d205c5bcaa7dd40/FLAG2847ae15f [2022-03-19 02:49:44,928 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdc6a4f3a/7c95999b185846838d205c5bcaa7dd40 [2022-03-19 02:49:44,930 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-19 02:49:44,931 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-19 02:49:44,932 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-19 02:49:44,932 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-19 02:49:44,934 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-19 02:49:44,935 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 02:49:44" (1/1) ... [2022-03-19 02:49:44,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3686e71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:44, skipping insertion in model container [2022-03-19 02:49:44,935 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.03 02:49:44" (1/1) ... [2022-03-19 02:49:44,940 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-19 02:49:44,988 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-19 02:49:45,174 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-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2022-03-19 02:49:45,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 02:49:45,186 INFO L203 MainTranslator]: Completed pre-run [2022-03-19 02:49:45,242 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-industry-pattern/aiob_4.c.v+lhb-reducer.c[15516,15529] [2022-03-19 02:49:45,247 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-19 02:49:45,255 INFO L208 MainTranslator]: Completed translation [2022-03-19 02:49:45,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45 WrapperNode [2022-03-19 02:49:45,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-19 02:49:45,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-19 02:49:45,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-19 02:49:45,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-19 02:49:45,265 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45" (1/1) ... [2022-03-19 02:49:45,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45" (1/1) ... [2022-03-19 02:49:45,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45" (1/1) ... [2022-03-19 02:49:45,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45" (1/1) ... [2022-03-19 02:49:45,332 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45" (1/1) ... [2022-03-19 02:49:45,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45" (1/1) ... [2022-03-19 02:49:45,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45" (1/1) ... [2022-03-19 02:49:45,341 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-19 02:49:45,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-19 02:49:45,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-19 02:49:45,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-19 02:49:45,342 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45" (1/1) ... [2022-03-19 02:49:45,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-19 02:49:45,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:49:45,400 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) [2022-03-19 02:49:45,419 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 [2022-03-19 02:49:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-03-19 02:49:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-19 02:49:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-03-19 02:49:45,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-03-19 02:49:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-03-19 02:49:45,446 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-19 02:49:45,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-19 02:49:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-03-19 02:49:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-19 02:49:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-03-19 02:49:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-19 02:49:45,578 INFO L234 CfgBuilder]: Building ICFG [2022-03-19 02:49:45,579 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-19 02:49:46,058 INFO L275 CfgBuilder]: Performing block encoding [2022-03-19 02:49:46,064 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-19 02:49:46,064 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-19 02:49:46,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:49:46 BoogieIcfgContainer [2022-03-19 02:49:46,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-19 02:49:46,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-19 02:49:46,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-19 02:49:46,072 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-19 02:49:46,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.03 02:49:44" (1/3) ... [2022-03-19 02:49:46,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b783fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 02:49:46, skipping insertion in model container [2022-03-19 02:49:46,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.03 02:49:45" (2/3) ... [2022-03-19 02:49:46,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b783fc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.03 02:49:46, skipping insertion in model container [2022-03-19 02:49:46,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.03 02:49:46" (3/3) ... [2022-03-19 02:49:46,074 INFO L111 eAbstractionObserver]: Analyzing ICFG aiob_4.c.v+lhb-reducer.c [2022-03-19 02:49:46,078 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-19 02:49:46,078 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-19 02:49:46,122 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-19 02:49:46,126 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 [2022-03-19 02:49:46,126 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-03-19 02:49:46,139 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-03-19 02:49:46,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-03-19 02:49:46,154 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:49:46,155 INFO L500 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:49:46,155 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:49:46,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:49:46,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1054632774, now seen corresponding path program 1 times [2022-03-19 02:49:46,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:46,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1066088723] [2022-03-19 02:49:46,174 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:49:46,175 INFO L85 PathProgramCache]: Analyzing trace with hash -1054632774, now seen corresponding path program 2 times [2022-03-19 02:49:46,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:49:46,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436896337] [2022-03-19 02:49:46,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:49:46,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:49:46,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:46,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:49:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:46,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:49:46,934 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436896337] [2022-03-19 02:49:46,934 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436896337] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:49:46,935 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:49:46,935 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-19 02:49:46,939 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:49:46,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1066088723] [2022-03-19 02:49:46,940 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1066088723] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:49:46,940 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:49:46,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-19 02:49:46,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656277020] [2022-03-19 02:49:46,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:49:46,944 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-19 02:49:46,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:46,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-19 02:49:46,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2022-03-19 02:49:46,971 INFO L87 Difference]: Start difference. First operand has 55 states, 49 states have (on average 1.8775510204081634) internal successors, (92), 50 states have internal predecessors, (92), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:47,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:49:47,544 INFO L93 Difference]: Finished difference Result 92 states and 136 transitions. [2022-03-19 02:49:47,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-03-19 02:49:47,546 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 48 [2022-03-19 02:49:47,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:49:47,551 INFO L225 Difference]: With dead ends: 92 [2022-03-19 02:49:47,551 INFO L226 Difference]: Without dead ends: 57 [2022-03-19 02:49:47,553 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2022-03-19 02:49:47,555 INFO L912 BasicCegarLoop]: 63 mSDtfsCounter, 120 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 548 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 717 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:49:47,556 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [120 Valid, 717 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 548 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-19 02:49:47,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-03-19 02:49:47,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 54. [2022-03-19 02:49:47,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:47,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 54 transitions. [2022-03-19 02:49:47,583 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 54 transitions. Word has length 48 [2022-03-19 02:49:47,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:49:47,584 INFO L478 AbstractCegarLoop]: Abstraction has 54 states and 54 transitions. [2022-03-19 02:49:47,584 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5) internal successors, (45), 17 states have internal predecessors, (45), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:47,584 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 54 transitions. [2022-03-19 02:49:47,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-03-19 02:49:47,585 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:49:47,585 INFO L500 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, 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] [2022-03-19 02:49:47,585 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-19 02:49:47,585 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:49:47,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:49:47,586 INFO L85 PathProgramCache]: Analyzing trace with hash 1470519801, now seen corresponding path program 1 times [2022-03-19 02:49:47,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:47,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2060972726] [2022-03-19 02:49:47,587 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:49:47,587 INFO L85 PathProgramCache]: Analyzing trace with hash 1470519801, now seen corresponding path program 2 times [2022-03-19 02:49:47,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:49:47,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204975028] [2022-03-19 02:49:47,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:49:47,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:49:47,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:47,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:49:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:47,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:47,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:49:47,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204975028] [2022-03-19 02:49:47,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204975028] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:49:47,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330516460] [2022-03-19 02:49:47,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:49:47,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:49:47,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:49:47,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:49:47,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-19 02:49:48,423 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:49:48,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:49:48,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 25 conjunts are in the unsatisfiable core [2022-03-19 02:49:48,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:49:48,643 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:48,644 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:49:49,036 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:49,037 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330516460] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:49:49,037 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:49:49,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 14] total 32 [2022-03-19 02:49:49,037 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:49:49,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2060972726] [2022-03-19 02:49:49,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2060972726] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:49:49,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:49:49,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-03-19 02:49:49,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969626291] [2022-03-19 02:49:49,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:49:49,038 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-19 02:49:49,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:49,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-19 02:49:49,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=241, Invalid=751, Unknown=0, NotChecked=0, Total=992 [2022-03-19 02:49:49,040 INFO L87 Difference]: Start difference. First operand 54 states and 54 transitions. Second operand has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:49,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:49:49,445 INFO L93 Difference]: Finished difference Result 65 states and 65 transitions. [2022-03-19 02:49:49,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-19 02:49:49,445 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 53 [2022-03-19 02:49:49,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:49:49,446 INFO L225 Difference]: With dead ends: 65 [2022-03-19 02:49:49,447 INFO L226 Difference]: Without dead ends: 62 [2022-03-19 02:49:49,447 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 94 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=358, Invalid=1202, Unknown=0, NotChecked=0, Total=1560 [2022-03-19 02:49:49,448 INFO L912 BasicCegarLoop]: 21 mSDtfsCounter, 50 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:49:49,448 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [50 Valid, 239 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-19 02:49:49,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-03-19 02:49:49,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 59. [2022-03-19 02:49:49,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:49,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 59 transitions. [2022-03-19 02:49:49,458 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 59 transitions. Word has length 53 [2022-03-19 02:49:49,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:49:49,459 INFO L478 AbstractCegarLoop]: Abstraction has 59 states and 59 transitions. [2022-03-19 02:49:49,459 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.6315789473684212) internal successors, (50), 18 states have internal predecessors, (50), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:49,459 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 59 transitions. [2022-03-19 02:49:49,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-03-19 02:49:49,460 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:49:49,460 INFO L500 BasicCegarLoop]: trace histogram [3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:49:49,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-19 02:49:49,679 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:49:49,680 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:49:49,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:49:49,680 INFO L85 PathProgramCache]: Analyzing trace with hash 412615706, now seen corresponding path program 3 times [2022-03-19 02:49:49,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:49,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [617246950] [2022-03-19 02:49:49,681 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:49:49,681 INFO L85 PathProgramCache]: Analyzing trace with hash 412615706, now seen corresponding path program 4 times [2022-03-19 02:49:49,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:49:49,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674092037] [2022-03-19 02:49:49,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:49:49,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:49:49,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:50,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:49:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:50,072 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:50,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:49:50,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674092037] [2022-03-19 02:49:50,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674092037] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:49:50,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557553196] [2022-03-19 02:49:50,073 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:49:50,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:49:50,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:49:50,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:49:50,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-19 02:49:50,292 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:49:50,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:49:50,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 923 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-19 02:49:50,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:49:50,513 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:50,513 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:49:50,950 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:50,951 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557553196] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:49:50,951 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:49:50,951 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 15] total 34 [2022-03-19 02:49:50,951 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:49:50,951 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [617246950] [2022-03-19 02:49:50,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [617246950] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:49:50,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:49:50,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2022-03-19 02:49:50,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192865445] [2022-03-19 02:49:50,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:49:50,952 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-03-19 02:49:50,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:50,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-03-19 02:49:50,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=850, Unknown=0, NotChecked=0, Total=1122 [2022-03-19 02:49:50,953 INFO L87 Difference]: Start difference. First operand 59 states and 59 transitions. Second operand has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:51,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:49:51,563 INFO L93 Difference]: Finished difference Result 70 states and 70 transitions. [2022-03-19 02:49:51,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-19 02:49:51,576 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 58 [2022-03-19 02:49:51,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:49:51,577 INFO L225 Difference]: With dead ends: 70 [2022-03-19 02:49:51,577 INFO L226 Difference]: Without dead ends: 67 [2022-03-19 02:49:51,578 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 103 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=413, Invalid=1393, Unknown=0, NotChecked=0, Total=1806 [2022-03-19 02:49:51,580 INFO L912 BasicCegarLoop]: 22 mSDtfsCounter, 53 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 698 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:49:51,580 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [53 Valid, 292 Invalid, 698 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-19 02:49:51,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-03-19 02:49:51,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2022-03-19 02:49:51,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:51,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 64 transitions. [2022-03-19 02:49:51,590 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 64 transitions. Word has length 58 [2022-03-19 02:49:51,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:49:51,590 INFO L478 AbstractCegarLoop]: Abstraction has 64 states and 64 transitions. [2022-03-19 02:49:51,590 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.75) internal successors, (55), 19 states have internal predecessors, (55), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:51,591 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 64 transitions. [2022-03-19 02:49:51,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-03-19 02:49:51,592 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:49:51,592 INFO L500 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:49:51,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-19 02:49:51,793 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-03-19 02:49:51,794 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:49:51,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:49:51,794 INFO L85 PathProgramCache]: Analyzing trace with hash -1771010407, now seen corresponding path program 5 times [2022-03-19 02:49:51,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:51,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [239996669] [2022-03-19 02:49:51,796 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:49:51,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1771010407, now seen corresponding path program 6 times [2022-03-19 02:49:51,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:49:51,796 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832088353] [2022-03-19 02:49:51,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:49:51,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:49:51,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:52,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:49:52,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:52,211 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:52,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:49:52,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832088353] [2022-03-19 02:49:52,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832088353] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:49:52,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513262567] [2022-03-19 02:49:52,211 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:49:52,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:49:52,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:49:52,224 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:49:52,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-19 02:49:55,588 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2022-03-19 02:49:55,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:49:55,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-19 02:49:55,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:49:55,827 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:55,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:49:56,327 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:56,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1513262567] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:49:56,328 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:49:56,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 16, 16] total 36 [2022-03-19 02:49:56,328 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:49:56,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [239996669] [2022-03-19 02:49:56,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [239996669] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:49:56,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:49:56,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-03-19 02:49:56,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103542749] [2022-03-19 02:49:56,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:49:56,329 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-03-19 02:49:56,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:56,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-03-19 02:49:56,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=955, Unknown=0, NotChecked=0, Total=1260 [2022-03-19 02:49:56,330 INFO L87 Difference]: Start difference. First operand 64 states and 64 transitions. Second operand has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:56,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:49:56,930 INFO L93 Difference]: Finished difference Result 75 states and 75 transitions. [2022-03-19 02:49:56,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-19 02:49:56,931 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 63 [2022-03-19 02:49:56,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:49:56,934 INFO L225 Difference]: With dead ends: 75 [2022-03-19 02:49:56,935 INFO L226 Difference]: Without dead ends: 72 [2022-03-19 02:49:56,936 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 112 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=472, Invalid=1598, Unknown=0, NotChecked=0, Total=2070 [2022-03-19 02:49:56,939 INFO L912 BasicCegarLoop]: 23 mSDtfsCounter, 55 mSDsluCounter, 305 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 810 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:49:56,940 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 328 Invalid, 810 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-19 02:49:56,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-03-19 02:49:56,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 69. [2022-03-19 02:49:56,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:56,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 69 transitions. [2022-03-19 02:49:56,956 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 69 transitions. Word has length 63 [2022-03-19 02:49:56,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:49:56,956 INFO L478 AbstractCegarLoop]: Abstraction has 69 states and 69 transitions. [2022-03-19 02:49:56,957 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.857142857142857) internal successors, (60), 20 states have internal predecessors, (60), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:56,957 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 69 transitions. [2022-03-19 02:49:56,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-03-19 02:49:56,958 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:49:56,958 INFO L500 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:49:57,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-19 02:49:57,179 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:49:57,179 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:49:57,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:49:57,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1370440838, now seen corresponding path program 7 times [2022-03-19 02:49:57,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:57,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [147772290] [2022-03-19 02:49:57,181 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:49:57,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1370440838, now seen corresponding path program 8 times [2022-03-19 02:49:57,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:49:57,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300033001] [2022-03-19 02:49:57,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:49:57,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:49:57,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:49:57,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:57,624 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:57,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:49:57,624 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300033001] [2022-03-19 02:49:57,625 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300033001] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:49:57,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922685154] [2022-03-19 02:49:57,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:49:57,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:49:57,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:49:57,626 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:49:57,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-19 02:49:57,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:49:57,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:49:57,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 31 conjunts are in the unsatisfiable core [2022-03-19 02:49:57,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:49:58,210 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:58,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:49:58,697 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:58,697 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922685154] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:49:58,697 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:49:58,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17, 17] total 38 [2022-03-19 02:49:58,698 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:49:58,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [147772290] [2022-03-19 02:49:58,698 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [147772290] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:49:58,698 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:49:58,698 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-03-19 02:49:58,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536498921] [2022-03-19 02:49:58,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:49:58,699 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-19 02:49:58,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:58,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-19 02:49:58,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=340, Invalid=1066, Unknown=0, NotChecked=0, Total=1406 [2022-03-19 02:49:58,700 INFO L87 Difference]: Start difference. First operand 69 states and 69 transitions. Second operand has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:59,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:49:59,275 INFO L93 Difference]: Finished difference Result 80 states and 80 transitions. [2022-03-19 02:49:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-19 02:49:59,275 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 68 [2022-03-19 02:49:59,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:49:59,276 INFO L225 Difference]: With dead ends: 80 [2022-03-19 02:49:59,276 INFO L226 Difference]: Without dead ends: 77 [2022-03-19 02:49:59,277 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=535, Invalid=1817, Unknown=0, NotChecked=0, Total=2352 [2022-03-19 02:49:59,277 INFO L912 BasicCegarLoop]: 24 mSDtfsCounter, 57 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 855 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 855 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:49:59,278 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 352 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 855 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-19 02:49:59,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-03-19 02:49:59,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 74. [2022-03-19 02:49:59,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:59,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 74 transitions. [2022-03-19 02:49:59,287 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 74 transitions. Word has length 68 [2022-03-19 02:49:59,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:49:59,288 INFO L478 AbstractCegarLoop]: Abstraction has 74 states and 74 transitions. [2022-03-19 02:49:59,288 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.9545454545454546) internal successors, (65), 21 states have internal predecessors, (65), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:49:59,288 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 74 transitions. [2022-03-19 02:49:59,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-03-19 02:49:59,289 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:49:59,289 INFO L500 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:49:59,315 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-19 02:49:59,509 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:49:59,509 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:49:59,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:49:59,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1100780743, now seen corresponding path program 9 times [2022-03-19 02:49:59,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:49:59,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1592437582] [2022-03-19 02:49:59,510 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:49:59,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1100780743, now seen corresponding path program 10 times [2022-03-19 02:49:59,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:49:59,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821572719] [2022-03-19 02:49:59,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:49:59,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:49:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:59,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:49:59,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:49:59,874 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:49:59,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:49:59,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821572719] [2022-03-19 02:49:59,874 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821572719] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:49:59,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501949995] [2022-03-19 02:49:59,874 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:49:59,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:49:59,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:49:59,877 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:49:59,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-19 02:50:00,082 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:50:00,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:00,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 33 conjunts are in the unsatisfiable core [2022-03-19 02:50:00,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:00,340 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:00,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:00,877 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:00,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501949995] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:00,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:00,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 18, 18] total 40 [2022-03-19 02:50:00,878 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:00,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1592437582] [2022-03-19 02:50:00,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1592437582] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:00,878 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:00,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-03-19 02:50:00,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230534736] [2022-03-19 02:50:00,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:00,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-19 02:50:00,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:00,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-19 02:50:00,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=377, Invalid=1183, Unknown=0, NotChecked=0, Total=1560 [2022-03-19 02:50:00,879 INFO L87 Difference]: Start difference. First operand 74 states and 74 transitions. Second operand has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:01,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:01,532 INFO L93 Difference]: Finished difference Result 85 states and 85 transitions. [2022-03-19 02:50:01,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-19 02:50:01,532 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 73 [2022-03-19 02:50:01,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:01,533 INFO L225 Difference]: With dead ends: 85 [2022-03-19 02:50:01,533 INFO L226 Difference]: Without dead ends: 82 [2022-03-19 02:50:01,534 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=602, Invalid=2050, Unknown=0, NotChecked=0, Total=2652 [2022-03-19 02:50:01,534 INFO L912 BasicCegarLoop]: 25 mSDtfsCounter, 59 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:01,535 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [59 Valid, 406 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-19 02:50:01,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-03-19 02:50:01,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 79. [2022-03-19 02:50:01,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 75 states have (on average 1.0133333333333334) internal successors, (76), 75 states have internal predecessors, (76), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:01,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 79 transitions. [2022-03-19 02:50:01,541 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 79 transitions. Word has length 73 [2022-03-19 02:50:01,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:01,542 INFO L478 AbstractCegarLoop]: Abstraction has 79 states and 79 transitions. [2022-03-19 02:50:01,542 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 22 states have internal predecessors, (70), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:01,542 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 79 transitions. [2022-03-19 02:50:01,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-03-19 02:50:01,543 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:01,543 INFO L500 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:01,565 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:01,744 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:01,745 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:01,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:01,745 INFO L85 PathProgramCache]: Analyzing trace with hash -812401958, now seen corresponding path program 11 times [2022-03-19 02:50:01,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:01,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1336416429] [2022-03-19 02:50:01,746 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:01,746 INFO L85 PathProgramCache]: Analyzing trace with hash -812401958, now seen corresponding path program 12 times [2022-03-19 02:50:01,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:01,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849519411] [2022-03-19 02:50:01,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:01,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:01,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:02,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:02,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:02,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849519411] [2022-03-19 02:50:02,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849519411] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:02,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001916770] [2022-03-19 02:50:02,080 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:50:02,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:02,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:02,082 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:02,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-19 02:50:02,558 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:50:02,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:02,563 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 34 conjunts are in the unsatisfiable core [2022-03-19 02:50:02,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:03,113 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:50:03,118 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-19 02:50:03,118 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 22 [2022-03-19 02:50:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 15 proven. 23 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-19 02:50:03,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2022-03-19 02:50:05,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001916770] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:05,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:05,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 9, 9] total 38 [2022-03-19 02:50:05,075 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:05,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1336416429] [2022-03-19 02:50:05,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1336416429] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:05,075 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:05,075 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-03-19 02:50:05,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901825268] [2022-03-19 02:50:05,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:05,077 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-19 02:50:05,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:05,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-19 02:50:05,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1172, Unknown=0, NotChecked=0, Total=1406 [2022-03-19 02:50:05,077 INFO L87 Difference]: Start difference. First operand 79 states and 79 transitions. Second operand has 24 states, 24 states have (on average 3.125) internal successors, (75), 23 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:05,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:05,866 INFO L93 Difference]: Finished difference Result 90 states and 90 transitions. [2022-03-19 02:50:05,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-19 02:50:05,866 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.125) internal successors, (75), 23 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 78 [2022-03-19 02:50:05,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:05,867 INFO L225 Difference]: With dead ends: 90 [2022-03-19 02:50:05,867 INFO L226 Difference]: Without dead ends: 87 [2022-03-19 02:50:05,868 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 265 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=370, Invalid=2180, Unknown=0, NotChecked=0, Total=2550 [2022-03-19 02:50:05,868 INFO L912 BasicCegarLoop]: 26 mSDtfsCounter, 58 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 1139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:05,869 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [58 Valid, 438 Invalid, 1139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-19 02:50:05,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-03-19 02:50:05,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 84. [2022-03-19 02:50:05,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:05,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 84 transitions. [2022-03-19 02:50:05,875 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 84 transitions. Word has length 78 [2022-03-19 02:50:05,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:05,876 INFO L478 AbstractCegarLoop]: Abstraction has 84 states and 84 transitions. [2022-03-19 02:50:05,876 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.125) internal successors, (75), 23 states have internal predecessors, (75), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:05,876 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 84 transitions. [2022-03-19 02:50:05,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-03-19 02:50:05,876 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:05,877 INFO L500 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:05,897 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:06,090 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:06,091 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:06,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:06,091 INFO L85 PathProgramCache]: Analyzing trace with hash -570882087, now seen corresponding path program 13 times [2022-03-19 02:50:06,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:06,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [387454542] [2022-03-19 02:50:06,092 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:06,092 INFO L85 PathProgramCache]: Analyzing trace with hash -570882087, now seen corresponding path program 14 times [2022-03-19 02:50:06,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:06,092 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773743191] [2022-03-19 02:50:06,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:06,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:06,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:06,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:06,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:06,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773743191] [2022-03-19 02:50:06,529 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773743191] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:06,529 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036414934] [2022-03-19 02:50:06,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:50:06,529 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:06,529 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:06,540 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:06,541 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-19 02:50:06,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:50:06,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:06,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 1113 conjuncts, 37 conjunts are in the unsatisfiable core [2022-03-19 02:50:06,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:07,248 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:07,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:07,913 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:07,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036414934] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:07,914 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:07,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 20, 20] total 44 [2022-03-19 02:50:07,914 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:07,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [387454542] [2022-03-19 02:50:07,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [387454542] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:07,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:07,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2022-03-19 02:50:07,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047325546] [2022-03-19 02:50:07,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:07,915 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-19 02:50:07,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:07,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-19 02:50:07,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=1435, Unknown=0, NotChecked=0, Total=1892 [2022-03-19 02:50:07,916 INFO L87 Difference]: Start difference. First operand 84 states and 84 transitions. Second operand has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:08,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:08,692 INFO L93 Difference]: Finished difference Result 95 states and 95 transitions. [2022-03-19 02:50:08,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-19 02:50:08,693 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 83 [2022-03-19 02:50:08,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:08,693 INFO L225 Difference]: With dead ends: 95 [2022-03-19 02:50:08,693 INFO L226 Difference]: Without dead ends: 92 [2022-03-19 02:50:08,694 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 148 SyntacticMatches, 1 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=748, Invalid=2558, Unknown=0, NotChecked=0, Total=3306 [2022-03-19 02:50:08,695 INFO L912 BasicCegarLoop]: 27 mSDtfsCounter, 62 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 1246 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 478 SdHoareTripleChecker+Invalid, 1278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 1246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:08,695 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 478 Invalid, 1278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 1246 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-19 02:50:08,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-03-19 02:50:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 89. [2022-03-19 02:50:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 89 transitions. [2022-03-19 02:50:08,702 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 89 transitions. Word has length 83 [2022-03-19 02:50:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:08,702 INFO L478 AbstractCegarLoop]: Abstraction has 89 states and 89 transitions. [2022-03-19 02:50:08,702 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:08,703 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 89 transitions. [2022-03-19 02:50:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2022-03-19 02:50:08,703 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:08,703 INFO L500 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:08,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:08,915 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:08,917 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:08,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1780941370, now seen corresponding path program 15 times [2022-03-19 02:50:08,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:08,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [775639282] [2022-03-19 02:50:08,918 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:08,918 INFO L85 PathProgramCache]: Analyzing trace with hash 1780941370, now seen corresponding path program 16 times [2022-03-19 02:50:08,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:08,918 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480373918] [2022-03-19 02:50:08,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:08,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:09,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:09,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:09,302 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:09,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:09,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480373918] [2022-03-19 02:50:09,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480373918] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:09,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899959418] [2022-03-19 02:50:09,303 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:50:09,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:09,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:09,304 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:09,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-19 02:50:09,550 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:50:09,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:09,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 39 conjunts are in the unsatisfiable core [2022-03-19 02:50:09,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:09,858 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:09,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:10,596 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:10,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899959418] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:10,597 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:10,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 21, 21] total 46 [2022-03-19 02:50:10,597 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:10,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [775639282] [2022-03-19 02:50:10,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [775639282] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:10,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:10,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2022-03-19 02:50:10,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1080989889] [2022-03-19 02:50:10,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:10,598 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-19 02:50:10,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:10,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-19 02:50:10,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=1570, Unknown=0, NotChecked=0, Total=2070 [2022-03-19 02:50:10,599 INFO L87 Difference]: Start difference. First operand 89 states and 89 transitions. Second operand has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:11,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:11,430 INFO L93 Difference]: Finished difference Result 100 states and 100 transitions. [2022-03-19 02:50:11,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-19 02:50:11,431 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 88 [2022-03-19 02:50:11,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:11,431 INFO L225 Difference]: With dead ends: 100 [2022-03-19 02:50:11,432 INFO L226 Difference]: Without dead ends: 97 [2022-03-19 02:50:11,433 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 209 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=827, Invalid=2833, Unknown=0, NotChecked=0, Total=3660 [2022-03-19 02:50:11,433 INFO L912 BasicCegarLoop]: 28 mSDtfsCounter, 62 mSDsluCounter, 498 mSDsCounter, 0 mSdLazyCounter, 1393 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:11,433 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 526 Invalid, 1427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1393 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-19 02:50:11,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-03-19 02:50:11,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 94. [2022-03-19 02:50:11,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 90 states have (on average 1.011111111111111) internal successors, (91), 90 states have internal predecessors, (91), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:11,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 94 transitions. [2022-03-19 02:50:11,440 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 94 transitions. Word has length 88 [2022-03-19 02:50:11,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:11,441 INFO L478 AbstractCegarLoop]: Abstraction has 94 states and 94 transitions. [2022-03-19 02:50:11,441 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.269230769230769) internal successors, (85), 25 states have internal predecessors, (85), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:11,441 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 94 transitions. [2022-03-19 02:50:11,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2022-03-19 02:50:11,442 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:11,442 INFO L500 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:11,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:11,645 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-19 02:50:11,646 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:11,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:11,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1289003911, now seen corresponding path program 17 times [2022-03-19 02:50:11,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:11,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2042747142] [2022-03-19 02:50:11,647 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:11,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1289003911, now seen corresponding path program 18 times [2022-03-19 02:50:11,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:11,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014344688] [2022-03-19 02:50:11,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:11,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:11,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:12,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:12,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:12,121 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 207 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:12,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:12,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014344688] [2022-03-19 02:50:12,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014344688] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:12,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133125656] [2022-03-19 02:50:12,122 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:50:12,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:12,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:12,123 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:12,124 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-19 02:50:12,928 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:50:12,929 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:12,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-19 02:50:12,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:13,292 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-19 02:50:13,292 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-03-19 02:50:13,457 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 24 proven. 35 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-19 02:50:13,458 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2022-03-19 02:50:15,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133125656] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:15,159 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:15,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 9, 9] total 41 [2022-03-19 02:50:15,159 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:15,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2042747142] [2022-03-19 02:50:15,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2042747142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:15,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:15,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-03-19 02:50:15,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738236906] [2022-03-19 02:50:15,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:15,161 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-19 02:50:15,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:15,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-19 02:50:15,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=1427, Unknown=0, NotChecked=0, Total=1640 [2022-03-19 02:50:15,162 INFO L87 Difference]: Start difference. First operand 94 states and 94 transitions. Second operand has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 26 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:15,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:15,981 INFO L93 Difference]: Finished difference Result 105 states and 105 transitions. [2022-03-19 02:50:15,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-19 02:50:15,982 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 26 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2022-03-19 02:50:15,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:15,983 INFO L225 Difference]: With dead ends: 105 [2022-03-19 02:50:15,983 INFO L226 Difference]: Without dead ends: 102 [2022-03-19 02:50:15,983 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 326 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=353, Invalid=2839, Unknown=0, NotChecked=0, Total=3192 [2022-03-19 02:50:15,984 INFO L912 BasicCegarLoop]: 29 mSDtfsCounter, 66 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 1546 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 1582 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 1546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:15,984 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [66 Valid, 570 Invalid, 1582 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 1546 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-19 02:50:15,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-03-19 02:50:15,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 99. [2022-03-19 02:50:15,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:15,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 99 transitions. [2022-03-19 02:50:15,991 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 99 transitions. Word has length 93 [2022-03-19 02:50:15,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:15,992 INFO L478 AbstractCegarLoop]: Abstraction has 99 states and 99 transitions. [2022-03-19 02:50:15,992 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 26 states have internal predecessors, (90), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:15,993 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 99 transitions. [2022-03-19 02:50:15,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2022-03-19 02:50:15,998 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:15,998 INFO L500 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:16,024 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-03-19 02:50:16,220 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-19 02:50:16,220 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:16,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1817219482, now seen corresponding path program 19 times [2022-03-19 02:50:16,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:16,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [2076210268] [2022-03-19 02:50:16,221 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:16,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1817219482, now seen corresponding path program 20 times [2022-03-19 02:50:16,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:16,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105018369] [2022-03-19 02:50:16,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:16,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:16,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:16,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:16,750 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:16,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:16,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105018369] [2022-03-19 02:50:16,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105018369] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:16,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637546625] [2022-03-19 02:50:16,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:50:16,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:16,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:16,752 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:16,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-19 02:50:17,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:50:17,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:17,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 1227 conjuncts, 43 conjunts are in the unsatisfiable core [2022-03-19 02:50:17,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:17,477 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:17,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:18,328 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:18,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637546625] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:18,329 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:18,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 23, 23] total 50 [2022-03-19 02:50:18,329 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:18,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [2076210268] [2022-03-19 02:50:18,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [2076210268] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:18,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:18,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-19 02:50:18,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841201163] [2022-03-19 02:50:18,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:18,330 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-19 02:50:18,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:18,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-19 02:50:18,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=592, Invalid=1858, Unknown=0, NotChecked=0, Total=2450 [2022-03-19 02:50:18,331 INFO L87 Difference]: Start difference. First operand 99 states and 99 transitions. Second operand has 28 states, 28 states have (on average 3.392857142857143) internal successors, (95), 27 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:19,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:19,340 INFO L93 Difference]: Finished difference Result 110 states and 110 transitions. [2022-03-19 02:50:19,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-19 02:50:19,341 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.392857142857143) internal successors, (95), 27 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 98 [2022-03-19 02:50:19,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:19,341 INFO L225 Difference]: With dead ends: 110 [2022-03-19 02:50:19,342 INFO L226 Difference]: Without dead ends: 107 [2022-03-19 02:50:19,342 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=997, Invalid=3425, Unknown=0, NotChecked=0, Total=4422 [2022-03-19 02:50:19,343 INFO L912 BasicCegarLoop]: 30 mSDtfsCounter, 69 mSDsluCounter, 586 mSDsCounter, 0 mSdLazyCounter, 1707 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 1745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:19,343 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 616 Invalid, 1745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1707 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-19 02:50:19,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-03-19 02:50:19,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 104. [2022-03-19 02:50:19,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 100 states have (on average 1.01) internal successors, (101), 100 states have internal predecessors, (101), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:19,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 104 transitions. [2022-03-19 02:50:19,350 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 104 transitions. Word has length 98 [2022-03-19 02:50:19,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:19,350 INFO L478 AbstractCegarLoop]: Abstraction has 104 states and 104 transitions. [2022-03-19 02:50:19,350 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.392857142857143) internal successors, (95), 27 states have internal predecessors, (95), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:19,350 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 104 transitions. [2022-03-19 02:50:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2022-03-19 02:50:19,351 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:19,351 INFO L500 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:19,370 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:19,561 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-19 02:50:19,562 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:19,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:19,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1265920281, now seen corresponding path program 21 times [2022-03-19 02:50:19,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:19,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1368197581] [2022-03-19 02:50:19,567 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:19,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1265920281, now seen corresponding path program 22 times [2022-03-19 02:50:19,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:19,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593668679] [2022-03-19 02:50:19,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:19,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:19,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:20,031 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:20,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:20,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593668679] [2022-03-19 02:50:20,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593668679] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:20,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1105285785] [2022-03-19 02:50:20,031 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:50:20,032 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:20,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:20,045 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:20,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-19 02:50:20,337 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:50:20,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:20,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 1265 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-19 02:50:20,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:20,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:21,620 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 0 proven. 308 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:21,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1105285785] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:21,620 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:21,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 24, 24] total 52 [2022-03-19 02:50:21,620 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:21,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1368197581] [2022-03-19 02:50:21,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1368197581] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:21,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:21,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2022-03-19 02:50:21,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029901796] [2022-03-19 02:50:21,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:21,621 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-03-19 02:50:21,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:21,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-03-19 02:50:21,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=641, Invalid=2011, Unknown=0, NotChecked=0, Total=2652 [2022-03-19 02:50:21,622 INFO L87 Difference]: Start difference. First operand 104 states and 104 transitions. Second operand has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:22,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:22,512 INFO L93 Difference]: Finished difference Result 115 states and 115 transitions. [2022-03-19 02:50:22,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-19 02:50:22,512 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 103 [2022-03-19 02:50:22,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:22,513 INFO L225 Difference]: With dead ends: 115 [2022-03-19 02:50:22,513 INFO L226 Difference]: Without dead ends: 112 [2022-03-19 02:50:22,514 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 184 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1088, Invalid=3742, Unknown=0, NotChecked=0, Total=4830 [2022-03-19 02:50:22,514 INFO L912 BasicCegarLoop]: 31 mSDtfsCounter, 68 mSDsluCounter, 666 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 1997 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:22,514 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 697 Invalid, 1997 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-03-19 02:50:22,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-03-19 02:50:22,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 109. [2022-03-19 02:50:22,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 105 states have (on average 1.0095238095238095) internal successors, (106), 105 states have internal predecessors, (106), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:22,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 109 transitions. [2022-03-19 02:50:22,522 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 109 transitions. Word has length 103 [2022-03-19 02:50:22,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:22,522 INFO L478 AbstractCegarLoop]: Abstraction has 109 states and 109 transitions. [2022-03-19 02:50:22,522 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.4482758620689653) internal successors, (100), 28 states have internal predecessors, (100), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 109 transitions. [2022-03-19 02:50:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2022-03-19 02:50:22,523 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:22,523 INFO L500 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:22,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:22,723 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-19 02:50:22,724 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:22,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:22,724 INFO L85 PathProgramCache]: Analyzing trace with hash 618031354, now seen corresponding path program 23 times [2022-03-19 02:50:22,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:22,724 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1612557064] [2022-03-19 02:50:22,725 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:22,725 INFO L85 PathProgramCache]: Analyzing trace with hash 618031354, now seen corresponding path program 24 times [2022-03-19 02:50:22,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:22,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [476371199] [2022-03-19 02:50:22,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:22,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:22,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:23,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:23,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:23,111 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 366 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:23,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:23,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [476371199] [2022-03-19 02:50:23,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [476371199] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:23,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [179459966] [2022-03-19 02:50:23,111 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:50:23,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:23,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:23,114 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:23,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-19 02:50:29,992 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:50:29,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:30,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 75 conjunts are in the unsatisfiable core [2022-03-19 02:50:30,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:30,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:50:30,861 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-19 02:50:30,862 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 18 [2022-03-19 02:50:30,984 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 33 proven. 47 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-03-19 02:50:30,990 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:34,701 INFO L134 CoverageAnalysis]: Checked inductivity of 366 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 286 trivial. 0 not checked. [2022-03-19 02:50:34,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [179459966] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:34,701 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:34,702 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 21, 20] total 67 [2022-03-19 02:50:34,702 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:34,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1612557064] [2022-03-19 02:50:34,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1612557064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:34,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:34,703 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-03-19 02:50:34,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804591558] [2022-03-19 02:50:34,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:34,704 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-19 02:50:34,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:34,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-19 02:50:34,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=3836, Unknown=0, NotChecked=0, Total=4422 [2022-03-19 02:50:34,705 INFO L87 Difference]: Start difference. First operand 109 states and 109 transitions. Second operand has 30 states, 30 states have (on average 3.5) internal successors, (105), 29 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:36,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:36,152 INFO L93 Difference]: Finished difference Result 120 states and 120 transitions. [2022-03-19 02:50:36,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-19 02:50:36,152 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 29 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 108 [2022-03-19 02:50:36,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:36,153 INFO L225 Difference]: With dead ends: 120 [2022-03-19 02:50:36,153 INFO L226 Difference]: Without dead ends: 117 [2022-03-19 02:50:36,154 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 177 SyntacticMatches, 4 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1351 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=754, Invalid=6556, Unknown=0, NotChecked=0, Total=7310 [2022-03-19 02:50:36,155 INFO L912 BasicCegarLoop]: 32 mSDtfsCounter, 70 mSDsluCounter, 669 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:36,155 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [70 Valid, 701 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-19 02:50:36,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-03-19 02:50:36,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 114. [2022-03-19 02:50:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 110 states have (on average 1.009090909090909) internal successors, (111), 110 states have internal predecessors, (111), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:36,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 114 transitions. [2022-03-19 02:50:36,163 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 114 transitions. Word has length 108 [2022-03-19 02:50:36,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:36,163 INFO L478 AbstractCegarLoop]: Abstraction has 114 states and 114 transitions. [2022-03-19 02:50:36,163 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 29 states have internal predecessors, (105), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:36,163 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 114 transitions. [2022-03-19 02:50:36,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-19 02:50:36,164 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:36,164 INFO L500 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:36,182 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:36,364 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-03-19 02:50:36,365 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:36,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:36,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1546768967, now seen corresponding path program 25 times [2022-03-19 02:50:36,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:36,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [480952611] [2022-03-19 02:50:36,366 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:36,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1546768967, now seen corresponding path program 26 times [2022-03-19 02:50:36,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:36,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776320410] [2022-03-19 02:50:36,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:36,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:36,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:36,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:36,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:36,849 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:36,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:36,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776320410] [2022-03-19 02:50:36,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776320410] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:36,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378527686] [2022-03-19 02:50:36,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:50:36,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:36,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:36,852 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:36,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-19 02:50:37,509 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:50:37,509 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:37,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 49 conjunts are in the unsatisfiable core [2022-03-19 02:50:37,519 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:37,793 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 429 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:38,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378527686] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:38,933 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:38,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 26, 26] total 56 [2022-03-19 02:50:38,933 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:38,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [480952611] [2022-03-19 02:50:38,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [480952611] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:38,933 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:38,933 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2022-03-19 02:50:38,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697279656] [2022-03-19 02:50:38,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:38,934 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-03-19 02:50:38,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:38,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-03-19 02:50:38,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=739, Invalid=2341, Unknown=0, NotChecked=0, Total=3080 [2022-03-19 02:50:38,935 INFO L87 Difference]: Start difference. First operand 114 states and 114 transitions. Second operand has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:40,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:40,037 INFO L93 Difference]: Finished difference Result 125 states and 125 transitions. [2022-03-19 02:50:40,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-19 02:50:40,038 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 113 [2022-03-19 02:50:40,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:40,046 INFO L225 Difference]: With dead ends: 125 [2022-03-19 02:50:40,047 INFO L226 Difference]: Without dead ends: 122 [2022-03-19 02:50:40,048 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 202 SyntacticMatches, 1 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 387 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1270, Invalid=4430, Unknown=0, NotChecked=0, Total=5700 [2022-03-19 02:50:40,054 INFO L912 BasicCegarLoop]: 33 mSDtfsCounter, 73 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 2243 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 2287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:40,054 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 781 Invalid, 2287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2243 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-19 02:50:40,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-03-19 02:50:40,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 119. [2022-03-19 02:50:40,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:40,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 119 transitions. [2022-03-19 02:50:40,063 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 119 transitions. Word has length 113 [2022-03-19 02:50:40,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:40,063 INFO L478 AbstractCegarLoop]: Abstraction has 119 states and 119 transitions. [2022-03-19 02:50:40,063 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.5483870967741935) internal successors, (110), 30 states have internal predecessors, (110), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:40,063 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 119 transitions. [2022-03-19 02:50:40,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-03-19 02:50:40,064 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:40,064 INFO L500 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:40,086 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-03-19 02:50:40,279 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-03-19 02:50:40,279 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:40,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:40,280 INFO L85 PathProgramCache]: Analyzing trace with hash -1560377254, now seen corresponding path program 27 times [2022-03-19 02:50:40,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:40,280 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1707622864] [2022-03-19 02:50:40,280 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:40,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1560377254, now seen corresponding path program 28 times [2022-03-19 02:50:40,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:40,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530886760] [2022-03-19 02:50:40,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:40,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:40,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:40,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:40,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:40,856 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:40,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:40,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530886760] [2022-03-19 02:50:40,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [530886760] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:40,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245549738] [2022-03-19 02:50:40,856 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:50:40,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:40,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:40,857 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:40,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-19 02:50:41,223 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:50:41,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:41,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 1379 conjuncts, 51 conjunts are in the unsatisfiable core [2022-03-19 02:50:41,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:41,445 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:41,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:42,382 INFO L134 CoverageAnalysis]: Checked inductivity of 497 backedges. 0 proven. 497 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:42,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245549738] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:42,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:42,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 27, 27] total 58 [2022-03-19 02:50:42,383 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:42,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1707622864] [2022-03-19 02:50:42,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1707622864] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:42,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:42,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2022-03-19 02:50:42,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88373560] [2022-03-19 02:50:42,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:42,384 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-03-19 02:50:42,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:42,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-03-19 02:50:42,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=785, Invalid=2521, Unknown=0, NotChecked=0, Total=3306 [2022-03-19 02:50:42,385 INFO L87 Difference]: Start difference. First operand 119 states and 119 transitions. Second operand has 32 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:43,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:43,395 INFO L93 Difference]: Finished difference Result 130 states and 130 transitions. [2022-03-19 02:50:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-19 02:50:43,396 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2022-03-19 02:50:43,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:43,397 INFO L225 Difference]: With dead ends: 130 [2022-03-19 02:50:43,397 INFO L226 Difference]: Without dead ends: 127 [2022-03-19 02:50:43,399 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 211 SyntacticMatches, 1 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 455 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1355, Invalid=4807, Unknown=0, NotChecked=0, Total=6162 [2022-03-19 02:50:43,400 INFO L912 BasicCegarLoop]: 34 mSDtfsCounter, 73 mSDsluCounter, 831 mSDsCounter, 0 mSdLazyCounter, 2527 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 865 SdHoareTripleChecker+Invalid, 2573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 2527 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:43,400 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 865 Invalid, 2573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 2527 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-19 02:50:43,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-03-19 02:50:43,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2022-03-19 02:50:43,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 120 states have (on average 1.0083333333333333) internal successors, (121), 120 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:43,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 124 transitions. [2022-03-19 02:50:43,412 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 124 transitions. Word has length 118 [2022-03-19 02:50:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:43,413 INFO L478 AbstractCegarLoop]: Abstraction has 124 states and 124 transitions. [2022-03-19 02:50:43,413 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.59375) internal successors, (115), 31 states have internal predecessors, (115), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:43,413 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 124 transitions. [2022-03-19 02:50:43,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2022-03-19 02:50:43,414 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:43,414 INFO L500 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:43,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:43,620 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:43,620 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:43,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:43,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1219668569, now seen corresponding path program 29 times [2022-03-19 02:50:43,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:43,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1934951724] [2022-03-19 02:50:43,621 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:43,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1219668569, now seen corresponding path program 30 times [2022-03-19 02:50:43,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:43,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059544882] [2022-03-19 02:50:43,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:43,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:43,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:44,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:44,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 570 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:44,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:44,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059544882] [2022-03-19 02:50:44,169 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059544882] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:44,169 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185762153] [2022-03-19 02:50:44,169 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:50:44,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:44,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:44,170 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:44,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-19 02:50:47,863 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:50:47,863 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:47,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 38 conjunts are in the unsatisfiable core [2022-03-19 02:50:47,879 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:48,602 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-19 02:50:48,603 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 26 [2022-03-19 02:50:48,810 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 42 proven. 59 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-03-19 02:50:48,810 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:51,119 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 101 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2022-03-19 02:50:51,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185762153] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:51,120 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:51,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 47 [2022-03-19 02:50:51,120 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:51,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1934951724] [2022-03-19 02:50:51,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1934951724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:51,121 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:51,121 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [33] imperfect sequences [] total 33 [2022-03-19 02:50:51,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902756815] [2022-03-19 02:50:51,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:51,121 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-03-19 02:50:51,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:51,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-03-19 02:50:51,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=1913, Unknown=0, NotChecked=0, Total=2162 [2022-03-19 02:50:51,122 INFO L87 Difference]: Start difference. First operand 124 states and 124 transitions. Second operand has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 32 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:52,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:52,247 INFO L93 Difference]: Finished difference Result 135 states and 135 transitions. [2022-03-19 02:50:52,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-19 02:50:52,248 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 32 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 123 [2022-03-19 02:50:52,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:52,248 INFO L225 Difference]: With dead ends: 135 [2022-03-19 02:50:52,248 INFO L226 Difference]: Without dead ends: 132 [2022-03-19 02:50:52,250 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 301 GetRequests, 234 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=443, Invalid=4249, Unknown=0, NotChecked=0, Total=4692 [2022-03-19 02:50:52,250 INFO L912 BasicCegarLoop]: 35 mSDtfsCounter, 79 mSDsluCounter, 856 mSDsCounter, 0 mSdLazyCounter, 2637 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 891 SdHoareTripleChecker+Invalid, 2685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 2637 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:52,250 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 891 Invalid, 2685 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 2637 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-19 02:50:52,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2022-03-19 02:50:52,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 129. [2022-03-19 02:50:52,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 125 states have (on average 1.008) internal successors, (126), 125 states have internal predecessors, (126), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:52,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 129 transitions. [2022-03-19 02:50:52,261 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 129 transitions. Word has length 123 [2022-03-19 02:50:52,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:52,261 INFO L478 AbstractCegarLoop]: Abstraction has 129 states and 129 transitions. [2022-03-19 02:50:52,261 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 3.6363636363636362) internal successors, (120), 32 states have internal predecessors, (120), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:52,261 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 129 transitions. [2022-03-19 02:50:52,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2022-03-19 02:50:52,262 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:52,262 INFO L500 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:52,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:52,485 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-19 02:50:52,486 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:52,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:52,486 INFO L85 PathProgramCache]: Analyzing trace with hash 378466234, now seen corresponding path program 31 times [2022-03-19 02:50:52,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:52,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1291010141] [2022-03-19 02:50:52,487 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:52,487 INFO L85 PathProgramCache]: Analyzing trace with hash 378466234, now seen corresponding path program 32 times [2022-03-19 02:50:52,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:52,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1943368413] [2022-03-19 02:50:52,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:52,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:52,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:52,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:52,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:52,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:52,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1943368413] [2022-03-19 02:50:52,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1943368413] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:52,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296883660] [2022-03-19 02:50:52,991 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:50:52,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:52,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:52,993 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:52,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-19 02:50:53,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:50:53,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:53,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 1455 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-19 02:50:53,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:53,686 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:53,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:54,537 INFO L134 CoverageAnalysis]: Checked inductivity of 648 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:54,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296883660] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:54,537 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:54,537 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 29, 29] total 62 [2022-03-19 02:50:54,539 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:54,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1291010141] [2022-03-19 02:50:54,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1291010141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:54,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:54,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2022-03-19 02:50:54,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069512029] [2022-03-19 02:50:54,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:54,540 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-03-19 02:50:54,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:54,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-03-19 02:50:54,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=871, Invalid=2911, Unknown=0, NotChecked=0, Total=3782 [2022-03-19 02:50:54,541 INFO L87 Difference]: Start difference. First operand 129 states and 129 transitions. Second operand has 34 states, 34 states have (on average 3.676470588235294) internal successors, (125), 33 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:55,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:55,699 INFO L93 Difference]: Finished difference Result 140 states and 140 transitions. [2022-03-19 02:50:55,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-19 02:50:55,699 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 3.676470588235294) internal successors, (125), 33 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 128 [2022-03-19 02:50:55,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:55,700 INFO L225 Difference]: With dead ends: 140 [2022-03-19 02:50:55,700 INFO L226 Difference]: Without dead ends: 137 [2022-03-19 02:50:55,701 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 594 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1513, Invalid=5627, Unknown=0, NotChecked=0, Total=7140 [2022-03-19 02:50:55,710 INFO L912 BasicCegarLoop]: 36 mSDtfsCounter, 78 mSDsluCounter, 922 mSDsCounter, 0 mSdLazyCounter, 2849 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 958 SdHoareTripleChecker+Invalid, 2899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 2849 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:55,711 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [78 Valid, 958 Invalid, 2899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 2849 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-19 02:50:55,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-03-19 02:50:55,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 134. [2022-03-19 02:50:55,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 130 states have (on average 1.0076923076923077) internal successors, (131), 130 states have internal predecessors, (131), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:55,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 134 transitions. [2022-03-19 02:50:55,723 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 134 transitions. Word has length 128 [2022-03-19 02:50:55,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:55,724 INFO L478 AbstractCegarLoop]: Abstraction has 134 states and 134 transitions. [2022-03-19 02:50:55,724 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 3.676470588235294) internal successors, (125), 33 states have internal predecessors, (125), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:55,724 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 134 transitions. [2022-03-19 02:50:55,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-03-19 02:50:55,724 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:55,724 INFO L500 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:55,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:55,945 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-03-19 02:50:55,945 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:55,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:55,946 INFO L85 PathProgramCache]: Analyzing trace with hash -165945607, now seen corresponding path program 33 times [2022-03-19 02:50:55,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:55,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1040882567] [2022-03-19 02:50:55,946 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:55,946 INFO L85 PathProgramCache]: Analyzing trace with hash -165945607, now seen corresponding path program 34 times [2022-03-19 02:50:55,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:55,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724045497] [2022-03-19 02:50:55,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:55,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:56,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:56,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:50:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:50:56,601 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:56,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:50:56,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724045497] [2022-03-19 02:50:56,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724045497] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:50:56,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515059870] [2022-03-19 02:50:56,601 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:50:56,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:50:56,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:50:56,603 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:50:56,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-19 02:50:56,950 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:50:56,950 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:50:56,956 INFO L263 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-19 02:50:56,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:50:57,256 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:57,256 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:50:58,209 INFO L134 CoverageAnalysis]: Checked inductivity of 731 backedges. 0 proven. 731 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:50:58,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515059870] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:50:58,210 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:50:58,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 30, 30] total 64 [2022-03-19 02:50:58,210 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:50:58,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1040882567] [2022-03-19 02:50:58,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1040882567] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:50:58,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:50:58,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2022-03-19 02:50:58,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574563791] [2022-03-19 02:50:58,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:50:58,211 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-03-19 02:50:58,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:58,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-03-19 02:50:58,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=911, Invalid=3121, Unknown=0, NotChecked=0, Total=4032 [2022-03-19 02:50:58,212 INFO L87 Difference]: Start difference. First operand 134 states and 134 transitions. Second operand has 35 states, 35 states have (on average 3.7142857142857144) internal successors, (130), 34 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:59,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:50:59,709 INFO L93 Difference]: Finished difference Result 145 states and 145 transitions. [2022-03-19 02:50:59,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-19 02:50:59,710 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 3.7142857142857144) internal successors, (130), 34 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 133 [2022-03-19 02:50:59,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:50:59,711 INFO L225 Difference]: With dead ends: 145 [2022-03-19 02:50:59,711 INFO L226 Difference]: Without dead ends: 142 [2022-03-19 02:50:59,711 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 325 GetRequests, 238 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 665 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1586, Invalid=6070, Unknown=0, NotChecked=0, Total=7656 [2022-03-19 02:50:59,712 INFO L912 BasicCegarLoop]: 37 mSDtfsCounter, 79 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 3067 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 3119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 3067 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:50:59,712 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 1021 Invalid, 3119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 3067 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-19 02:50:59,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-03-19 02:50:59,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 139. [2022-03-19 02:50:59,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 135 states have (on average 1.0074074074074073) internal successors, (136), 135 states have internal predecessors, (136), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:59,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 139 transitions. [2022-03-19 02:50:59,722 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 139 transitions. Word has length 133 [2022-03-19 02:50:59,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:50:59,722 INFO L478 AbstractCegarLoop]: Abstraction has 139 states and 139 transitions. [2022-03-19 02:50:59,722 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 3.7142857142857144) internal successors, (130), 34 states have internal predecessors, (130), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:50:59,722 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 139 transitions. [2022-03-19 02:50:59,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2022-03-19 02:50:59,723 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:50:59,723 INFO L500 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:50:59,743 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-03-19 02:50:59,943 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-03-19 02:50:59,943 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:50:59,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:50:59,944 INFO L85 PathProgramCache]: Analyzing trace with hash 802004762, now seen corresponding path program 35 times [2022-03-19 02:50:59,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:50:59,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1976591414] [2022-03-19 02:50:59,944 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:50:59,944 INFO L85 PathProgramCache]: Analyzing trace with hash 802004762, now seen corresponding path program 36 times [2022-03-19 02:50:59,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:50:59,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935998938] [2022-03-19 02:50:59,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:50:59,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:50:59,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:00,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:51:00,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 819 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:00,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:51:00,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935998938] [2022-03-19 02:51:00,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935998938] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:51:00,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103416529] [2022-03-19 02:51:00,550 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:51:00,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:00,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:51:00,552 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:51:00,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-03-19 02:51:01,590 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:51:01,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:51:01,596 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 32 conjunts are in the unsatisfiable core [2022-03-19 02:51:01,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:51:02,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-19 02:51:02,428 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-19 02:51:02,429 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 26 treesize of output 22 [2022-03-19 02:51:02,577 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 51 proven. 71 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-03-19 02:51:02,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:51:04,999 INFO L134 CoverageAnalysis]: Checked inductivity of 819 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 697 trivial. 0 not checked. [2022-03-19 02:51:05,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [103416529] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:51:05,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:51:05,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 9, 9] total 50 [2022-03-19 02:51:05,000 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:51:05,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1976591414] [2022-03-19 02:51:05,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1976591414] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:51:05,000 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:51:05,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [] total 36 [2022-03-19 02:51:05,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1961886714] [2022-03-19 02:51:05,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:51:05,001 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-03-19 02:51:05,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:05,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-03-19 02:51:05,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=2120, Unknown=0, NotChecked=0, Total=2450 [2022-03-19 02:51:05,001 INFO L87 Difference]: Start difference. First operand 139 states and 139 transitions. Second operand has 36 states, 36 states have (on average 3.75) internal successors, (135), 35 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:06,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:51:06,507 INFO L93 Difference]: Finished difference Result 150 states and 150 transitions. [2022-03-19 02:51:06,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-19 02:51:06,513 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 36 states have (on average 3.75) internal successors, (135), 35 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 138 [2022-03-19 02:51:06,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:51:06,514 INFO L225 Difference]: With dead ends: 150 [2022-03-19 02:51:06,514 INFO L226 Difference]: Without dead ends: 147 [2022-03-19 02:51:06,515 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 264 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 559 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=598, Invalid=4952, Unknown=0, NotChecked=0, Total=5550 [2022-03-19 02:51:06,516 INFO L912 BasicCegarLoop]: 38 mSDtfsCounter, 81 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 3399 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 3453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 3399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:51:06,516 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [81 Valid, 1117 Invalid, 3453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 3399 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-19 02:51:06,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-03-19 02:51:06,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2022-03-19 02:51:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 140 states have internal predecessors, (141), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 144 transitions. [2022-03-19 02:51:06,527 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 144 transitions. Word has length 138 [2022-03-19 02:51:06,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:51:06,527 INFO L478 AbstractCegarLoop]: Abstraction has 144 states and 144 transitions. [2022-03-19 02:51:06,527 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 3.75) internal successors, (135), 35 states have internal predecessors, (135), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 144 transitions. [2022-03-19 02:51:06,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2022-03-19 02:51:06,528 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:51:06,528 INFO L500 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:51:06,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2022-03-19 02:51:06,739 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:06,740 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:51:06,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:51:06,740 INFO L85 PathProgramCache]: Analyzing trace with hash 931384217, now seen corresponding path program 37 times [2022-03-19 02:51:06,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:06,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [696152099] [2022-03-19 02:51:06,741 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:51:06,741 INFO L85 PathProgramCache]: Analyzing trace with hash 931384217, now seen corresponding path program 38 times [2022-03-19 02:51:06,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:51:06,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931148968] [2022-03-19 02:51:06,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:51:06,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:51:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:07,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:51:07,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:07,255 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:07,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:51:07,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931148968] [2022-03-19 02:51:07,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931148968] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:51:07,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [133942017] [2022-03-19 02:51:07,256 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:51:07,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:07,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:51:07,257 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:51:07,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-03-19 02:51:07,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:51:07,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:51:07,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 61 conjunts are in the unsatisfiable core [2022-03-19 02:51:07,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:51:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:08,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:51:09,298 INFO L134 CoverageAnalysis]: Checked inductivity of 912 backedges. 0 proven. 912 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:09,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [133942017] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:51:09,298 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:51:09,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 32, 32] total 68 [2022-03-19 02:51:09,298 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:51:09,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [696152099] [2022-03-19 02:51:09,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [696152099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:51:09,299 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:51:09,299 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [37] imperfect sequences [] total 37 [2022-03-19 02:51:09,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682798847] [2022-03-19 02:51:09,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:51:09,299 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-19 02:51:09,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:09,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-19 02:51:09,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=985, Invalid=3571, Unknown=0, NotChecked=0, Total=4556 [2022-03-19 02:51:09,300 INFO L87 Difference]: Start difference. First operand 144 states and 144 transitions. Second operand has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 36 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:10,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:51:10,784 INFO L93 Difference]: Finished difference Result 155 states and 155 transitions. [2022-03-19 02:51:10,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-19 02:51:10,791 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 36 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 143 [2022-03-19 02:51:10,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:51:10,792 INFO L225 Difference]: With dead ends: 155 [2022-03-19 02:51:10,792 INFO L226 Difference]: Without dead ends: 152 [2022-03-19 02:51:10,793 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 349 GetRequests, 256 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 810 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1720, Invalid=7022, Unknown=0, NotChecked=0, Total=8742 [2022-03-19 02:51:10,793 INFO L912 BasicCegarLoop]: 39 mSDtfsCounter, 87 mSDsluCounter, 1079 mSDsCounter, 0 mSdLazyCounter, 3416 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 3472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 3416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:51:10,793 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1118 Invalid, 3472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 3416 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-19 02:51:10,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2022-03-19 02:51:10,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 149. [2022-03-19 02:51:10,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 145 states have (on average 1.006896551724138) internal successors, (146), 145 states have internal predecessors, (146), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:10,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 149 transitions. [2022-03-19 02:51:10,810 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 149 transitions. Word has length 143 [2022-03-19 02:51:10,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:51:10,810 INFO L478 AbstractCegarLoop]: Abstraction has 149 states and 149 transitions. [2022-03-19 02:51:10,810 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 3.7837837837837838) internal successors, (140), 36 states have internal predecessors, (140), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:10,810 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 149 transitions. [2022-03-19 02:51:10,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2022-03-19 02:51:10,810 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:51:10,811 INFO L500 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:51:10,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-03-19 02:51:11,019 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:11,019 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:51:11,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:51:11,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2139133562, now seen corresponding path program 39 times [2022-03-19 02:51:11,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:11,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1847012959] [2022-03-19 02:51:11,020 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:51:11,020 INFO L85 PathProgramCache]: Analyzing trace with hash 2139133562, now seen corresponding path program 40 times [2022-03-19 02:51:11,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:51:11,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949841287] [2022-03-19 02:51:11,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:51:11,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:51:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:11,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:51:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:11,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:51:11,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949841287] [2022-03-19 02:51:11,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949841287] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:51:11,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381301774] [2022-03-19 02:51:11,701 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:51:11,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:11,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:51:11,702 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:51:11,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-03-19 02:51:12,098 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:51:12,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:51:12,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 63 conjunts are in the unsatisfiable core [2022-03-19 02:51:12,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:51:12,495 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:12,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:51:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1010 backedges. 0 proven. 1010 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:13,717 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381301774] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:51:13,718 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:51:13,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 33, 33] total 70 [2022-03-19 02:51:13,718 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:51:13,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1847012959] [2022-03-19 02:51:13,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1847012959] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:51:13,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:51:13,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [38] imperfect sequences [] total 38 [2022-03-19 02:51:13,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431232091] [2022-03-19 02:51:13,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:51:13,719 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-19 02:51:13,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:13,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-19 02:51:13,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1019, Invalid=3811, Unknown=0, NotChecked=0, Total=4830 [2022-03-19 02:51:13,721 INFO L87 Difference]: Start difference. First operand 149 states and 149 transitions. Second operand has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:15,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:51:15,255 INFO L93 Difference]: Finished difference Result 160 states and 160 transitions. [2022-03-19 02:51:15,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-19 02:51:15,255 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 148 [2022-03-19 02:51:15,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:51:15,256 INFO L225 Difference]: With dead ends: 160 [2022-03-19 02:51:15,256 INFO L226 Difference]: Without dead ends: 157 [2022-03-19 02:51:15,256 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 361 GetRequests, 265 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 884 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1781, Invalid=7531, Unknown=0, NotChecked=0, Total=9312 [2022-03-19 02:51:15,257 INFO L912 BasicCegarLoop]: 40 mSDtfsCounter, 87 mSDsluCounter, 1182 mSDsCounter, 0 mSdLazyCounter, 3769 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 1222 SdHoareTripleChecker+Invalid, 3827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 3769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:51:15,257 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 1222 Invalid, 3827 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 3769 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-03-19 02:51:15,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-03-19 02:51:15,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 154. [2022-03-19 02:51:15,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 150 states have (on average 1.0066666666666666) internal successors, (151), 150 states have internal predecessors, (151), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:15,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 154 transitions. [2022-03-19 02:51:15,301 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 154 transitions. Word has length 148 [2022-03-19 02:51:15,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:51:15,301 INFO L478 AbstractCegarLoop]: Abstraction has 154 states and 154 transitions. [2022-03-19 02:51:15,301 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 37 states have internal predecessors, (145), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:15,301 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 154 transitions. [2022-03-19 02:51:15,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2022-03-19 02:51:15,301 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:51:15,302 INFO L500 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:51:15,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-03-19 02:51:15,511 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-03-19 02:51:15,511 INFO L403 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:51:15,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:51:15,512 INFO L85 PathProgramCache]: Analyzing trace with hash 132411449, now seen corresponding path program 41 times [2022-03-19 02:51:15,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:15,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1401772138] [2022-03-19 02:51:15,513 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:51:15,513 INFO L85 PathProgramCache]: Analyzing trace with hash 132411449, now seen corresponding path program 42 times [2022-03-19 02:51:15,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:51:15,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679653656] [2022-03-19 02:51:15,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:51:15,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:51:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:16,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:51:16,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:16,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 1113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:16,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:51:16,215 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679653656] [2022-03-19 02:51:16,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679653656] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:51:16,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463348313] [2022-03-19 02:51:16,216 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:51:16,216 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:16,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:51:16,217 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:51:16,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-03-19 02:51:17,697 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:51:17,697 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:51:17,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 38 conjunts are in the unsatisfiable core [2022-03-19 02:51:17,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:51:18,332 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-19 02:51:18,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2022-03-19 02:51:18,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 60 proven. 83 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-03-19 02:51:18,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:51:21,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1113 backedges. 0 proven. 143 refuted. 0 times theorem prover too weak. 970 trivial. 0 not checked. [2022-03-19 02:51:21,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463348313] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:51:21,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:51:21,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 9, 9] total 53 [2022-03-19 02:51:21,350 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:51:21,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1401772138] [2022-03-19 02:51:21,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1401772138] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:51:21,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:51:21,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [39] imperfect sequences [] total 39 [2022-03-19 02:51:21,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211604305] [2022-03-19 02:51:21,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:51:21,351 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-03-19 02:51:21,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:21,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-03-19 02:51:21,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=285, Invalid=2471, Unknown=0, NotChecked=0, Total=2756 [2022-03-19 02:51:21,352 INFO L87 Difference]: Start difference. First operand 154 states and 154 transitions. Second operand has 39 states, 39 states have (on average 3.8461538461538463) internal successors, (150), 38 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:23,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:51:23,010 INFO L93 Difference]: Finished difference Result 165 states and 165 transitions. [2022-03-19 02:51:23,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-19 02:51:23,012 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 3.8461538461538463) internal successors, (150), 38 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 153 [2022-03-19 02:51:23,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:51:23,018 INFO L225 Difference]: With dead ends: 165 [2022-03-19 02:51:23,018 INFO L226 Difference]: Without dead ends: 162 [2022-03-19 02:51:23,019 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=533, Invalid=5947, Unknown=0, NotChecked=0, Total=6480 [2022-03-19 02:51:23,019 INFO L912 BasicCegarLoop]: 41 mSDtfsCounter, 91 mSDsluCounter, 1246 mSDsCounter, 0 mSdLazyCounter, 4017 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 4077 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 4017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-03-19 02:51:23,020 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [91 Valid, 1287 Invalid, 4077 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 4017 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-03-19 02:51:23,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-03-19 02:51:23,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 159. [2022-03-19 02:51:23,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 155 states have (on average 1.0064516129032257) internal successors, (156), 155 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:23,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 159 transitions. [2022-03-19 02:51:23,033 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 159 transitions. Word has length 153 [2022-03-19 02:51:23,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:51:23,033 INFO L478 AbstractCegarLoop]: Abstraction has 159 states and 159 transitions. [2022-03-19 02:51:23,033 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.8461538461538463) internal successors, (150), 38 states have internal predecessors, (150), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:23,033 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 159 transitions. [2022-03-19 02:51:23,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-03-19 02:51:23,034 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:51:23,034 INFO L500 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:51:23,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-03-19 02:51:23,257 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-03-19 02:51:23,257 INFO L403 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:51:23,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:51:23,257 INFO L85 PathProgramCache]: Analyzing trace with hash -689056294, now seen corresponding path program 43 times [2022-03-19 02:51:23,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:23,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [458721545] [2022-03-19 02:51:23,258 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:51:23,258 INFO L85 PathProgramCache]: Analyzing trace with hash -689056294, now seen corresponding path program 44 times [2022-03-19 02:51:23,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:51:23,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559609047] [2022-03-19 02:51:23,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:51:23,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:51:23,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:24,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:51:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:24,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:24,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:51:24,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559609047] [2022-03-19 02:51:24,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559609047] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:51:24,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163142869] [2022-03-19 02:51:24,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:51:24,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:24,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:51:24,045 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:51:24,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-03-19 02:51:24,524 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:51:24,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:51:24,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 1683 conjuncts, 67 conjunts are in the unsatisfiable core [2022-03-19 02:51:24,534 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:51:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:24,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:51:26,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:26,022 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163142869] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:51:26,022 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:51:26,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 35, 35] total 74 [2022-03-19 02:51:26,023 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:51:26,023 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [458721545] [2022-03-19 02:51:26,023 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [458721545] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:51:26,023 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:51:26,023 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-03-19 02:51:26,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096350704] [2022-03-19 02:51:26,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:51:26,023 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-03-19 02:51:26,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:26,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-03-19 02:51:26,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=4321, Unknown=0, NotChecked=0, Total=5402 [2022-03-19 02:51:26,024 INFO L87 Difference]: Start difference. First operand 159 states and 159 transitions. Second operand has 40 states, 40 states have (on average 3.875) internal successors, (155), 39 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:28,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:51:28,050 INFO L93 Difference]: Finished difference Result 170 states and 170 transitions. [2022-03-19 02:51:28,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-19 02:51:28,050 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.875) internal successors, (155), 39 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 158 [2022-03-19 02:51:28,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:51:28,051 INFO L225 Difference]: With dead ends: 170 [2022-03-19 02:51:28,051 INFO L226 Difference]: Without dead ends: 167 [2022-03-19 02:51:28,052 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 283 SyntacticMatches, 1 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1891, Invalid=8615, Unknown=0, NotChecked=0, Total=10506 [2022-03-19 02:51:28,052 INFO L912 BasicCegarLoop]: 42 mSDtfsCounter, 92 mSDsluCounter, 1289 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1331 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-03-19 02:51:28,052 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 1331 Invalid, 4217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-03-19 02:51:28,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2022-03-19 02:51:28,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 164. [2022-03-19 02:51:28,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164 states, 160 states have (on average 1.00625) internal successors, (161), 160 states have internal predecessors, (161), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:28,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 164 transitions. [2022-03-19 02:51:28,073 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 164 transitions. Word has length 158 [2022-03-19 02:51:28,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:51:28,073 INFO L478 AbstractCegarLoop]: Abstraction has 164 states and 164 transitions. [2022-03-19 02:51:28,073 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.875) internal successors, (155), 39 states have internal predecessors, (155), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:28,073 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 164 transitions. [2022-03-19 02:51:28,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2022-03-19 02:51:28,074 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:51:28,074 INFO L500 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:51:28,095 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2022-03-19 02:51:28,294 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:28,295 INFO L403 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:51:28,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:51:28,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1907870937, now seen corresponding path program 45 times [2022-03-19 02:51:28,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:28,295 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1198284811] [2022-03-19 02:51:28,296 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:51:28,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1907870937, now seen corresponding path program 46 times [2022-03-19 02:51:28,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:51:28,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916416238] [2022-03-19 02:51:28,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:51:28,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:51:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:29,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:51:29,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:29,134 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:29,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:51:29,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916416238] [2022-03-19 02:51:29,134 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916416238] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:51:29,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [205558762] [2022-03-19 02:51:29,135 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:51:29,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:29,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:51:29,136 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:51:29,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-03-19 02:51:29,616 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:51:29,616 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:51:29,639 INFO L263 TraceCheckSpWp]: Trace formula consists of 1721 conjuncts, 69 conjunts are in the unsatisfiable core [2022-03-19 02:51:29,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:51:30,177 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:30,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:51:31,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1334 backedges. 0 proven. 1334 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:31,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [205558762] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:51:31,650 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:51:31,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 36, 36] total 76 [2022-03-19 02:51:31,650 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:51:31,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1198284811] [2022-03-19 02:51:31,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1198284811] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:51:31,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:51:31,650 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [41] imperfect sequences [] total 41 [2022-03-19 02:51:31,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111059851] [2022-03-19 02:51:31,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:51:31,650 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-03-19 02:51:31,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:31,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-03-19 02:51:31,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1109, Invalid=4591, Unknown=0, NotChecked=0, Total=5700 [2022-03-19 02:51:31,652 INFO L87 Difference]: Start difference. First operand 164 states and 164 transitions. Second operand has 41 states, 41 states have (on average 3.902439024390244) internal successors, (160), 40 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:33,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:51:33,977 INFO L93 Difference]: Finished difference Result 175 states and 175 transitions. [2022-03-19 02:51:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-19 02:51:33,977 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.902439024390244) internal successors, (160), 40 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 163 [2022-03-19 02:51:33,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:51:33,978 INFO L225 Difference]: With dead ends: 175 [2022-03-19 02:51:33,978 INFO L226 Difference]: Without dead ends: 172 [2022-03-19 02:51:33,978 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 292 SyntacticMatches, 1 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1940, Invalid=9190, Unknown=0, NotChecked=0, Total=11130 [2022-03-19 02:51:33,979 INFO L912 BasicCegarLoop]: 43 mSDtfsCounter, 92 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 4794 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 4858 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 4794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:51:33,979 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 1510 Invalid, 4858 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 4794 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-19 02:51:33,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2022-03-19 02:51:33,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2022-03-19 02:51:33,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 165 states have (on average 1.006060606060606) internal successors, (166), 165 states have internal predecessors, (166), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:33,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 169 transitions. [2022-03-19 02:51:33,994 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 169 transitions. Word has length 163 [2022-03-19 02:51:33,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:51:33,994 INFO L478 AbstractCegarLoop]: Abstraction has 169 states and 169 transitions. [2022-03-19 02:51:33,994 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.902439024390244) internal successors, (160), 40 states have internal predecessors, (160), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:51:33,994 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 169 transitions. [2022-03-19 02:51:33,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2022-03-19 02:51:33,995 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:51:33,995 INFO L500 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:51:34,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-03-19 02:51:34,210 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:34,210 INFO L403 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:51:34,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:51:34,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1478795974, now seen corresponding path program 47 times [2022-03-19 02:51:34,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:51:34,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1022089790] [2022-03-19 02:51:34,211 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:51:34,211 INFO L85 PathProgramCache]: Analyzing trace with hash -1478795974, now seen corresponding path program 48 times [2022-03-19 02:51:34,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:51:34,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059409969] [2022-03-19 02:51:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:51:34,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:51:34,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:35,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:51:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:51:35,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:51:35,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:51:35,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059409969] [2022-03-19 02:51:35,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1059409969] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:51:35,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602494623] [2022-03-19 02:51:35,018 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:51:35,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:51:35,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:51:35,019 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:51:35,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-03-19 02:51:49,469 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:51:49,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:51:49,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 166 conjunts are in the unsatisfiable core [2022-03-19 02:51:49,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:52:35,890 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-19 02:52:35,890 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 41 select indices, 41 select index equivalence classes, 780 disjoint index pairs (out of 820 index pairs), introduced 41 new quantified variables, introduced 820 case distinctions, treesize of input 288 treesize of output 444 [2022-03-19 02:54:24,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 69 proven. 95 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-03-19 02:54:24,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:54:30,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1452 backedges. 0 proven. 164 refuted. 0 times theorem prover too weak. 1288 trivial. 0 not checked. [2022-03-19 02:54:30,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602494623] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:54:30,709 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:54:30,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 23, 22] total 83 [2022-03-19 02:54:30,709 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:54:30,709 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1022089790] [2022-03-19 02:54:30,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1022089790] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:54:30,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:54:30,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-03-19 02:54:30,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868421887] [2022-03-19 02:54:30,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:54:30,710 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-03-19 02:54:30,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:54:30,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-03-19 02:54:30,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=772, Invalid=6034, Unknown=0, NotChecked=0, Total=6806 [2022-03-19 02:54:30,711 INFO L87 Difference]: Start difference. First operand 169 states and 169 transitions. Second operand has 42 states, 42 states have (on average 3.9285714285714284) internal successors, (165), 41 states have internal predecessors, (165), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:54:33,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:54:33,862 INFO L93 Difference]: Finished difference Result 180 states and 180 transitions. [2022-03-19 02:54:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-19 02:54:33,862 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.9285714285714284) internal successors, (165), 41 states have internal predecessors, (165), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 168 [2022-03-19 02:54:33,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:54:33,863 INFO L225 Difference]: With dead ends: 180 [2022-03-19 02:54:33,863 INFO L226 Difference]: Without dead ends: 177 [2022-03-19 02:54:33,864 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 292 SyntacticMatches, 5 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2118 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=1050, Invalid=11832, Unknown=0, NotChecked=0, Total=12882 [2022-03-19 02:54:33,864 INFO L912 BasicCegarLoop]: 44 mSDtfsCounter, 96 mSDsluCounter, 1434 mSDsCounter, 0 mSdLazyCounter, 4686 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 1478 SdHoareTripleChecker+Invalid, 4752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 4686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:54:33,864 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 1478 Invalid, 4752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 4686 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-19 02:54:33,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-03-19 02:54:33,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 174. [2022-03-19 02:54:33,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 170 states have (on average 1.0058823529411764) internal successors, (171), 170 states have internal predecessors, (171), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:54:33,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 174 transitions. [2022-03-19 02:54:33,884 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 174 transitions. Word has length 168 [2022-03-19 02:54:33,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:54:33,885 INFO L478 AbstractCegarLoop]: Abstraction has 174 states and 174 transitions. [2022-03-19 02:54:33,885 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.9285714285714284) internal successors, (165), 41 states have internal predecessors, (165), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:54:33,885 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 174 transitions. [2022-03-19 02:54:33,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-03-19 02:54:33,886 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:54:33,886 INFO L500 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:54:33,904 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2022-03-19 02:54:34,102 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2022-03-19 02:54:34,102 INFO L403 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:54:34,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:54:34,103 INFO L85 PathProgramCache]: Analyzing trace with hash 787997049, now seen corresponding path program 49 times [2022-03-19 02:54:34,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:54:34,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1023938430] [2022-03-19 02:54:34,104 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:54:34,104 INFO L85 PathProgramCache]: Analyzing trace with hash 787997049, now seen corresponding path program 50 times [2022-03-19 02:54:34,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:54:34,104 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421547040] [2022-03-19 02:54:34,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:54:34,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:54:34,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:54:34,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:54:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:54:34,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:54:34,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:54:34,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421547040] [2022-03-19 02:54:34,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421547040] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:54:34,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705214456] [2022-03-19 02:54:34,829 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:54:34,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:54:34,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:54:34,830 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:54:34,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2022-03-19 02:54:35,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:54:35,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:54:35,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 1797 conjuncts, 73 conjunts are in the unsatisfiable core [2022-03-19 02:54:35,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:54:35,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:54:35,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:54:37,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 0 proven. 1575 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:54:37,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705214456] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:54:37,560 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:54:37,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 38, 38] total 80 [2022-03-19 02:54:37,560 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:54:37,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1023938430] [2022-03-19 02:54:37,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1023938430] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:54:37,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:54:37,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [43] imperfect sequences [] total 43 [2022-03-19 02:54:37,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461856333] [2022-03-19 02:54:37,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:54:37,561 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-19 02:54:37,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:54:37,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-19 02:54:37,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1158, Invalid=5162, Unknown=0, NotChecked=0, Total=6320 [2022-03-19 02:54:37,562 INFO L87 Difference]: Start difference. First operand 174 states and 174 transitions. Second operand has 43 states, 43 states have (on average 3.953488372093023) internal successors, (170), 42 states have internal predecessors, (170), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:54:39,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:54:39,744 INFO L93 Difference]: Finished difference Result 185 states and 185 transitions. [2022-03-19 02:54:39,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-19 02:54:39,744 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 3.953488372093023) internal successors, (170), 42 states have internal predecessors, (170), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 173 [2022-03-19 02:54:39,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:54:39,745 INFO L225 Difference]: With dead ends: 185 [2022-03-19 02:54:39,745 INFO L226 Difference]: Without dead ends: 182 [2022-03-19 02:54:39,746 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 310 SyntacticMatches, 1 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1271 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=2026, Invalid=10406, Unknown=0, NotChecked=0, Total=12432 [2022-03-19 02:54:39,746 INFO L912 BasicCegarLoop]: 45 mSDtfsCounter, 95 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 5233 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 1635 SdHoareTripleChecker+Invalid, 5301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 5233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-03-19 02:54:39,748 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 1635 Invalid, 5301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 5233 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-03-19 02:54:39,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2022-03-19 02:54:39,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 179. [2022-03-19 02:54:39,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 175 states have (on average 1.0057142857142858) internal successors, (176), 175 states have internal predecessors, (176), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:54:39,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 179 transitions. [2022-03-19 02:54:39,763 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 179 transitions. Word has length 173 [2022-03-19 02:54:39,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:54:39,763 INFO L478 AbstractCegarLoop]: Abstraction has 179 states and 179 transitions. [2022-03-19 02:54:39,764 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.953488372093023) internal successors, (170), 42 states have internal predecessors, (170), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:54:39,764 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 179 transitions. [2022-03-19 02:54:39,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-03-19 02:54:39,764 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:54:39,764 INFO L500 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:54:39,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2022-03-19 02:54:40,005 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-03-19 02:54:40,005 INFO L403 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:54:40,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:54:40,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1687104666, now seen corresponding path program 51 times [2022-03-19 02:54:40,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:54:40,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [781754486] [2022-03-19 02:54:40,007 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:54:40,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1687104666, now seen corresponding path program 52 times [2022-03-19 02:54:40,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:54:40,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087598207] [2022-03-19 02:54:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:54:40,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:54:40,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:54:40,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:54:40,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:54:40,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:54:40,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:54:40,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087598207] [2022-03-19 02:54:40,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087598207] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:54:40,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403827500] [2022-03-19 02:54:40,946 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:54:40,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:54:40,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:54:40,947 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:54:40,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2022-03-19 02:54:41,431 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:54:41,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:54:41,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 1835 conjuncts, 75 conjunts are in the unsatisfiable core [2022-03-19 02:54:41,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:54:41,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:54:41,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:54:43,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1703 backedges. 0 proven. 1703 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:54:43,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403827500] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:54:43,500 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:54:43,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 39, 39] total 82 [2022-03-19 02:54:43,500 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:54:43,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [781754486] [2022-03-19 02:54:43,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [781754486] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:54:43,500 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:54:43,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2022-03-19 02:54:43,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621734032] [2022-03-19 02:54:43,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:54:43,510 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-03-19 02:54:43,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:54:43,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-03-19 02:54:43,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1179, Invalid=5463, Unknown=0, NotChecked=0, Total=6642 [2022-03-19 02:54:43,519 INFO L87 Difference]: Start difference. First operand 179 states and 179 transitions. Second operand has 44 states, 44 states have (on average 3.977272727272727) internal successors, (175), 43 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:54:45,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:54:45,665 INFO L93 Difference]: Finished difference Result 190 states and 190 transitions. [2022-03-19 02:54:45,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-19 02:54:45,665 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 3.977272727272727) internal successors, (175), 43 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 178 [2022-03-19 02:54:45,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:54:45,668 INFO L225 Difference]: With dead ends: 190 [2022-03-19 02:54:45,668 INFO L226 Difference]: Without dead ends: 187 [2022-03-19 02:54:45,669 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 319 SyntacticMatches, 1 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1353 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=2063, Invalid=11047, Unknown=0, NotChecked=0, Total=13110 [2022-03-19 02:54:45,670 INFO L912 BasicCegarLoop]: 46 mSDtfsCounter, 101 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 5387 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1672 SdHoareTripleChecker+Invalid, 5457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 5387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:54:45,670 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 1672 Invalid, 5457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 5387 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-03-19 02:54:45,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2022-03-19 02:54:45,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2022-03-19 02:54:45,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 180 states have (on average 1.0055555555555555) internal successors, (181), 180 states have internal predecessors, (181), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:54:45,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 184 transitions. [2022-03-19 02:54:45,695 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 184 transitions. Word has length 178 [2022-03-19 02:54:45,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:54:45,696 INFO L478 AbstractCegarLoop]: Abstraction has 184 states and 184 transitions. [2022-03-19 02:54:45,696 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 3.977272727272727) internal successors, (175), 43 states have internal predecessors, (175), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:54:45,696 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 184 transitions. [2022-03-19 02:54:45,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-03-19 02:54:45,696 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:54:45,697 INFO L500 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:54:45,716 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2022-03-19 02:54:45,911 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-03-19 02:54:45,911 INFO L403 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:54:45,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:54:45,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1226747417, now seen corresponding path program 53 times [2022-03-19 02:54:45,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:54:45,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1621619915] [2022-03-19 02:54:45,912 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:54:45,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1226747417, now seen corresponding path program 54 times [2022-03-19 02:54:45,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:54:45,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467358280] [2022-03-19 02:54:45,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:54:45,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:54:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:54:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:54:46,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:54:46,837 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 1836 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:54:46,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:54:46,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467358280] [2022-03-19 02:54:46,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467358280] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:54:46,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [984744494] [2022-03-19 02:54:46,837 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:54:46,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:54:46,838 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:54:46,839 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:54:46,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2022-03-19 02:54:58,140 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:54:58,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:54:58,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 133 conjunts are in the unsatisfiable core [2022-03-19 02:54:58,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:55:11,006 INFO L356 Elim1Store]: treesize reduction 12, result has 91.9 percent of original size [2022-03-19 02:55:11,006 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 120 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 127 treesize of output 191 [2022-03-19 02:55:15,789 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 78 proven. 107 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-03-19 02:55:15,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:55:21,826 INFO L134 CoverageAnalysis]: Checked inductivity of 1836 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 1651 trivial. 0 not checked. [2022-03-19 02:55:21,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [984744494] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:55:21,827 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:55:21,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 25, 23] total 89 [2022-03-19 02:55:21,827 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:55:21,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1621619915] [2022-03-19 02:55:21,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1621619915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:55:21,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:55:21,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [] total 45 [2022-03-19 02:55:21,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078887231] [2022-03-19 02:55:21,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:55:21,828 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-03-19 02:55:21,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:55:21,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-03-19 02:55:21,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=878, Invalid=6954, Unknown=0, NotChecked=0, Total=7832 [2022-03-19 02:55:21,837 INFO L87 Difference]: Start difference. First operand 184 states and 184 transitions. Second operand has 45 states, 45 states have (on average 4.0) internal successors, (180), 44 states have internal predecessors, (180), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:55:25,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:55:25,238 INFO L93 Difference]: Finished difference Result 195 states and 195 transitions. [2022-03-19 02:55:25,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-19 02:55:25,239 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 4.0) internal successors, (180), 44 states have internal predecessors, (180), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 183 [2022-03-19 02:55:25,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:55:25,239 INFO L225 Difference]: With dead ends: 195 [2022-03-19 02:55:25,239 INFO L226 Difference]: Without dead ends: 192 [2022-03-19 02:55:25,241 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 445 GetRequests, 321 SyntacticMatches, 3 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2546 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=1195, Invalid=13811, Unknown=0, NotChecked=0, Total=15006 [2022-03-19 02:55:25,241 INFO L912 BasicCegarLoop]: 47 mSDtfsCounter, 102 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 5686 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 1758 SdHoareTripleChecker+Invalid, 5758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 5686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-03-19 02:55:25,241 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 1758 Invalid, 5758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 5686 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-03-19 02:55:25,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2022-03-19 02:55:25,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 189. [2022-03-19 02:55:25,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 185 states have (on average 1.0054054054054054) internal successors, (186), 185 states have internal predecessors, (186), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:55:25,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 189 transitions. [2022-03-19 02:55:25,258 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 189 transitions. Word has length 183 [2022-03-19 02:55:25,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:55:25,258 INFO L478 AbstractCegarLoop]: Abstraction has 189 states and 189 transitions. [2022-03-19 02:55:25,258 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 4.0) internal successors, (180), 44 states have internal predecessors, (180), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:55:25,258 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 189 transitions. [2022-03-19 02:55:25,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-03-19 02:55:25,258 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:55:25,259 INFO L500 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 28, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:55:25,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2022-03-19 02:55:25,471 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-03-19 02:55:25,471 INFO L403 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:55:25,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:55:25,472 INFO L85 PathProgramCache]: Analyzing trace with hash -540064774, now seen corresponding path program 55 times [2022-03-19 02:55:25,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:55:25,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1440639103] [2022-03-19 02:55:25,473 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:55:25,473 INFO L85 PathProgramCache]: Analyzing trace with hash -540064774, now seen corresponding path program 56 times [2022-03-19 02:55:25,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:55:25,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146626125] [2022-03-19 02:55:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:55:25,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:55:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:55:26,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:55:26,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:55:26,397 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:55:26,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:55:26,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146626125] [2022-03-19 02:55:26,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146626125] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:55:26,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [291452758] [2022-03-19 02:55:26,397 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:55:26,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:55:26,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:55:26,399 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:55:26,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2022-03-19 02:55:27,074 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:55:27,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:55:27,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 1911 conjuncts, 79 conjunts are in the unsatisfiable core [2022-03-19 02:55:27,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:55:27,684 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:55:27,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:55:29,370 INFO L134 CoverageAnalysis]: Checked inductivity of 1974 backedges. 0 proven. 1974 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:55:29,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [291452758] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:55:29,370 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:55:29,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 41, 41] total 86 [2022-03-19 02:55:29,371 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:55:29,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1440639103] [2022-03-19 02:55:29,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1440639103] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:55:29,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:55:29,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [46] imperfect sequences [] total 46 [2022-03-19 02:55:29,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996108815] [2022-03-19 02:55:29,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:55:29,371 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-03-19 02:55:29,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:55:29,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-03-19 02:55:29,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1214, Invalid=6096, Unknown=0, NotChecked=0, Total=7310 [2022-03-19 02:55:29,373 INFO L87 Difference]: Start difference. First operand 189 states and 189 transitions. Second operand has 46 states, 46 states have (on average 4.021739130434782) internal successors, (185), 45 states have internal predecessors, (185), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:55:32,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:55:32,173 INFO L93 Difference]: Finished difference Result 200 states and 200 transitions. [2022-03-19 02:55:32,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-19 02:55:32,174 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 46 states have (on average 4.021739130434782) internal successors, (185), 45 states have internal predecessors, (185), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 188 [2022-03-19 02:55:32,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:55:32,175 INFO L225 Difference]: With dead ends: 200 [2022-03-19 02:55:32,175 INFO L226 Difference]: Without dead ends: 197 [2022-03-19 02:55:32,176 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 337 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1521 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2125, Invalid=12395, Unknown=0, NotChecked=0, Total=14520 [2022-03-19 02:55:32,176 INFO L912 BasicCegarLoop]: 48 mSDtfsCounter, 101 mSDsluCounter, 1798 mSDsCounter, 0 mSdLazyCounter, 5993 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1846 SdHoareTripleChecker+Invalid, 6067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 5993 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-03-19 02:55:32,176 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 1846 Invalid, 6067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 5993 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-03-19 02:55:32,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-03-19 02:55:32,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2022-03-19 02:55:32,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 190 states have (on average 1.0052631578947369) internal successors, (191), 190 states have internal predecessors, (191), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:55:32,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 194 transitions. [2022-03-19 02:55:32,194 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 194 transitions. Word has length 188 [2022-03-19 02:55:32,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:55:32,194 INFO L478 AbstractCegarLoop]: Abstraction has 194 states and 194 transitions. [2022-03-19 02:55:32,194 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.021739130434782) internal successors, (185), 45 states have internal predecessors, (185), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:55:32,194 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 194 transitions. [2022-03-19 02:55:32,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2022-03-19 02:55:32,195 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:55:32,195 INFO L500 BasicCegarLoop]: trace histogram [30, 30, 29, 29, 29, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:55:32,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2022-03-19 02:55:32,407 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2022-03-19 02:55:32,407 INFO L403 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:55:32,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:55:32,408 INFO L85 PathProgramCache]: Analyzing trace with hash -1188678983, now seen corresponding path program 57 times [2022-03-19 02:55:32,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:55:32,408 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1041728562] [2022-03-19 02:55:32,409 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:55:32,409 INFO L85 PathProgramCache]: Analyzing trace with hash -1188678983, now seen corresponding path program 58 times [2022-03-19 02:55:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:55:32,409 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633239415] [2022-03-19 02:55:32,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:55:32,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:55:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:55:33,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:55:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:55:33,414 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:55:33,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:55:33,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633239415] [2022-03-19 02:55:33,415 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633239415] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:55:33,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1240072704] [2022-03-19 02:55:33,415 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:55:33,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:55:33,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:55:33,416 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:55:33,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2022-03-19 02:55:33,951 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:55:33,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:55:33,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 1949 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-19 02:55:33,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:55:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:55:34,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:55:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 2117 backedges. 0 proven. 2117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:55:36,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1240072704] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:55:36,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:55:36,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 42, 42] total 88 [2022-03-19 02:55:36,240 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:55:36,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1041728562] [2022-03-19 02:55:36,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1041728562] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:55:36,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:55:36,241 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [47] imperfect sequences [] total 47 [2022-03-19 02:55:36,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888153495] [2022-03-19 02:55:36,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:55:36,241 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-03-19 02:55:36,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:55:36,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-03-19 02:55:36,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=6428, Unknown=0, NotChecked=0, Total=7656 [2022-03-19 02:55:36,242 INFO L87 Difference]: Start difference. First operand 194 states and 194 transitions. Second operand has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 46 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:55:38,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:55:38,712 INFO L93 Difference]: Finished difference Result 205 states and 205 transitions. [2022-03-19 02:55:38,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-19 02:55:38,712 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 46 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 193 [2022-03-19 02:55:38,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:55:38,713 INFO L225 Difference]: With dead ends: 205 [2022-03-19 02:55:38,713 INFO L226 Difference]: Without dead ends: 202 [2022-03-19 02:55:38,715 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 469 GetRequests, 346 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1607 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=2150, Invalid=13102, Unknown=0, NotChecked=0, Total=15252 [2022-03-19 02:55:38,715 INFO L912 BasicCegarLoop]: 49 mSDtfsCounter, 106 mSDsluCounter, 1881 mSDsCounter, 0 mSdLazyCounter, 6306 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 6382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 6306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-03-19 02:55:38,715 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 1930 Invalid, 6382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 6306 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-03-19 02:55:38,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-03-19 02:55:38,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 199. [2022-03-19 02:55:38,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 195 states have (on average 1.005128205128205) internal successors, (196), 195 states have internal predecessors, (196), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:55:38,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 199 transitions. [2022-03-19 02:55:38,734 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 199 transitions. Word has length 193 [2022-03-19 02:55:38,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:55:38,735 INFO L478 AbstractCegarLoop]: Abstraction has 199 states and 199 transitions. [2022-03-19 02:55:38,735 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.042553191489362) internal successors, (190), 46 states have internal predecessors, (190), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:55:38,735 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 199 transitions. [2022-03-19 02:55:38,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2022-03-19 02:55:38,735 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:55:38,735 INFO L500 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 30, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:55:38,763 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2022-03-19 02:55:38,955 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:55:38,955 INFO L403 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:55:38,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:55:38,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1394498726, now seen corresponding path program 59 times [2022-03-19 02:55:38,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:55:38,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1039884548] [2022-03-19 02:55:38,956 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:55:38,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1394498726, now seen corresponding path program 60 times [2022-03-19 02:55:38,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:55:38,957 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713034606] [2022-03-19 02:55:38,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:55:38,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:55:39,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:55:39,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:55:39,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:55:39,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 2265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:55:39,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:55:39,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713034606] [2022-03-19 02:55:39,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713034606] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:55:39,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161896151] [2022-03-19 02:55:39,957 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:55:39,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:55:39,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:55:39,959 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:55:39,960 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2022-03-19 02:55:56,862 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:55:56,862 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:55:56,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 156 conjunts are in the unsatisfiable core [2022-03-19 02:55:56,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:57:03,022 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-19 02:57:03,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 42 select indices, 42 select index equivalence classes, 820 disjoint index pairs (out of 861 index pairs), introduced 42 new quantified variables, introduced 861 case distinctions, treesize of input 295 treesize of output 455 [2022-03-19 02:59:08,343 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 87 proven. 119 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2022-03-19 02:59:08,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:59:14,854 INFO L134 CoverageAnalysis]: Checked inductivity of 2265 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 2059 trivial. 0 not checked. [2022-03-19 02:59:14,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161896151] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:59:14,854 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:59:14,854 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 23, 21] total 88 [2022-03-19 02:59:14,854 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:59:14,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1039884548] [2022-03-19 02:59:14,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1039884548] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:59:14,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:59:14,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [48] imperfect sequences [] total 48 [2022-03-19 02:59:14,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828874836] [2022-03-19 02:59:14,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:59:14,855 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-19 02:59:14,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:59:14,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-19 02:59:14,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=769, Invalid=6887, Unknown=0, NotChecked=0, Total=7656 [2022-03-19 02:59:14,856 INFO L87 Difference]: Start difference. First operand 199 states and 199 transitions. Second operand has 48 states, 48 states have (on average 4.0625) internal successors, (195), 47 states have internal predecessors, (195), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:18,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:59:18,774 INFO L93 Difference]: Finished difference Result 210 states and 210 transitions. [2022-03-19 02:59:18,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-19 02:59:18,774 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 4.0625) internal successors, (195), 47 states have internal predecessors, (195), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 198 [2022-03-19 02:59:18,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:59:18,775 INFO L225 Difference]: With dead ends: 210 [2022-03-19 02:59:18,775 INFO L226 Difference]: Without dead ends: 207 [2022-03-19 02:59:18,776 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 481 GetRequests, 353 SyntacticMatches, 5 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2310 ImplicationChecksByTransitivity, 9.8s TimeCoverageRelationStatistics Valid=1131, Invalid=14369, Unknown=0, NotChecked=0, Total=15500 [2022-03-19 02:59:18,777 INFO L912 BasicCegarLoop]: 50 mSDtfsCounter, 106 mSDsluCounter, 1972 mSDsCounter, 0 mSdLazyCounter, 6629 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 2022 SdHoareTripleChecker+Invalid, 6707 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 6629 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-03-19 02:59:18,777 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 2022 Invalid, 6707 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 6629 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-03-19 02:59:18,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-03-19 02:59:18,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 204. [2022-03-19 02:59:18,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 200 states have (on average 1.005) internal successors, (201), 200 states have internal predecessors, (201), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:18,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 204 transitions. [2022-03-19 02:59:18,797 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 204 transitions. Word has length 198 [2022-03-19 02:59:18,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:59:18,797 INFO L478 AbstractCegarLoop]: Abstraction has 204 states and 204 transitions. [2022-03-19 02:59:18,797 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 4.0625) internal successors, (195), 47 states have internal predecessors, (195), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:18,797 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 204 transitions. [2022-03-19 02:59:18,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-03-19 02:59:18,798 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:59:18,798 INFO L500 BasicCegarLoop]: trace histogram [32, 32, 31, 31, 31, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:59:18,831 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2022-03-19 02:59:19,023 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2022-03-19 02:59:19,023 INFO L403 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:59:19,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:59:19,024 INFO L85 PathProgramCache]: Analyzing trace with hash 126381913, now seen corresponding path program 61 times [2022-03-19 02:59:19,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:59:19,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1112524253] [2022-03-19 02:59:19,025 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:59:19,025 INFO L85 PathProgramCache]: Analyzing trace with hash 126381913, now seen corresponding path program 62 times [2022-03-19 02:59:19,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:59:19,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498935489] [2022-03-19 02:59:19,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:59:19,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:59:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:59:19,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:59:19,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:59:19,789 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:59:19,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:59:19,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498935489] [2022-03-19 02:59:19,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498935489] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:59:19,790 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617437907] [2022-03-19 02:59:19,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-19 02:59:19,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:59:19,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:59:19,791 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:59:19,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2022-03-19 02:59:20,390 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-19 02:59:20,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:59:20,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 2025 conjuncts, 85 conjunts are in the unsatisfiable core [2022-03-19 02:59:20,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:59:20,835 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:59:20,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:59:22,603 INFO L134 CoverageAnalysis]: Checked inductivity of 2418 backedges. 0 proven. 2418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:59:22,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617437907] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:59:22,604 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:59:22,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 44, 44] total 92 [2022-03-19 02:59:22,604 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:59:22,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1112524253] [2022-03-19 02:59:22,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1112524253] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:59:22,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:59:22,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [49] imperfect sequences [] total 49 [2022-03-19 02:59:22,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597623977] [2022-03-19 02:59:22,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:59:22,606 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-03-19 02:59:22,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:59:22,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-03-19 02:59:22,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1247, Invalid=7125, Unknown=0, NotChecked=0, Total=8372 [2022-03-19 02:59:22,607 INFO L87 Difference]: Start difference. First operand 204 states and 204 transitions. Second operand has 49 states, 49 states have (on average 4.081632653061225) internal successors, (200), 48 states have internal predecessors, (200), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:25,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:59:25,630 INFO L93 Difference]: Finished difference Result 215 states and 215 transitions. [2022-03-19 02:59:25,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-03-19 02:59:25,631 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 4.081632653061225) internal successors, (200), 48 states have internal predecessors, (200), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 203 [2022-03-19 02:59:25,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:59:25,631 INFO L225 Difference]: With dead ends: 215 [2022-03-19 02:59:25,631 INFO L226 Difference]: Without dead ends: 212 [2022-03-19 02:59:25,634 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 364 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1785 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=2188, Invalid=14582, Unknown=0, NotChecked=0, Total=16770 [2022-03-19 02:59:25,634 INFO L912 BasicCegarLoop]: 51 mSDtfsCounter, 108 mSDsluCounter, 2106 mSDsCounter, 0 mSdLazyCounter, 7117 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 7197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 7117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-03-19 02:59:25,634 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 2157 Invalid, 7197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 7117 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-03-19 02:59:25,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-03-19 02:59:25,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 209. [2022-03-19 02:59:25,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 205 states have (on average 1.0048780487804878) internal successors, (206), 205 states have internal predecessors, (206), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:25,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 209 transitions. [2022-03-19 02:59:25,656 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 209 transitions. Word has length 203 [2022-03-19 02:59:25,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:59:25,657 INFO L478 AbstractCegarLoop]: Abstraction has 209 states and 209 transitions. [2022-03-19 02:59:25,657 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 4.081632653061225) internal successors, (200), 48 states have internal predecessors, (200), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 209 transitions. [2022-03-19 02:59:25,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-03-19 02:59:25,657 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:59:25,658 INFO L500 BasicCegarLoop]: trace histogram [33, 33, 32, 32, 32, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:59:25,680 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2022-03-19 02:59:25,880 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:59:25,880 INFO L403 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:59:25,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:59:25,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2139900602, now seen corresponding path program 63 times [2022-03-19 02:59:25,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:59:25,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [904437391] [2022-03-19 02:59:25,881 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:59:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash 2139900602, now seen corresponding path program 64 times [2022-03-19 02:59:25,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:59:25,882 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080817660] [2022-03-19 02:59:25,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:59:25,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:59:25,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:59:26,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:59:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:59:26,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:59:26,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:59:26,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080817660] [2022-03-19 02:59:26,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080817660] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:59:26,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [850296607] [2022-03-19 02:59:26,993 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-19 02:59:26,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:59:26,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:59:27,011 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:59:27,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2022-03-19 02:59:27,543 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-19 02:59:27,543 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:59:27,553 INFO L263 TraceCheckSpWp]: Trace formula consists of 2063 conjuncts, 87 conjunts are in the unsatisfiable core [2022-03-19 02:59:27,556 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:59:28,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:59:28,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:59:30,430 INFO L134 CoverageAnalysis]: Checked inductivity of 2576 backedges. 0 proven. 2576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:59:30,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [850296607] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:59:30,430 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:59:30,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 45, 45] total 94 [2022-03-19 02:59:30,430 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:59:30,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [904437391] [2022-03-19 02:59:30,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [904437391] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:59:30,431 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:59:30,431 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [50] imperfect sequences [] total 50 [2022-03-19 02:59:30,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049533650] [2022-03-19 02:59:30,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:59:30,431 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-19 02:59:30,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:59:30,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-19 02:59:30,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1253, Invalid=7489, Unknown=0, NotChecked=0, Total=8742 [2022-03-19 02:59:30,432 INFO L87 Difference]: Start difference. First operand 209 states and 209 transitions. Second operand has 50 states, 50 states have (on average 4.1) internal successors, (205), 49 states have internal predecessors, (205), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:59:34,571 INFO L93 Difference]: Finished difference Result 220 states and 220 transitions. [2022-03-19 02:59:34,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-19 02:59:34,571 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 4.1) internal successors, (205), 49 states have internal predecessors, (205), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 208 [2022-03-19 02:59:34,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:59:34,572 INFO L225 Difference]: With dead ends: 220 [2022-03-19 02:59:34,572 INFO L226 Difference]: Without dead ends: 217 [2022-03-19 02:59:34,573 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 505 GetRequests, 373 SyntacticMatches, 1 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1876 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=2201, Invalid=15355, Unknown=0, NotChecked=0, Total=17556 [2022-03-19 02:59:34,573 INFO L912 BasicCegarLoop]: 52 mSDtfsCounter, 111 mSDsluCounter, 2238 mSDsCounter, 0 mSdLazyCounter, 7619 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 2290 SdHoareTripleChecker+Invalid, 7701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 7619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-03-19 02:59:34,573 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 2290 Invalid, 7701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 7619 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-03-19 02:59:34,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-03-19 02:59:34,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 214. [2022-03-19 02:59:34,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 210 states have (on average 1.0047619047619047) internal successors, (211), 210 states have internal predecessors, (211), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:34,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 214 transitions. [2022-03-19 02:59:34,594 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 214 transitions. Word has length 208 [2022-03-19 02:59:34,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:59:34,594 INFO L478 AbstractCegarLoop]: Abstraction has 214 states and 214 transitions. [2022-03-19 02:59:34,594 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 4.1) internal successors, (205), 49 states have internal predecessors, (205), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:34,595 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 214 transitions. [2022-03-19 02:59:34,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2022-03-19 02:59:34,595 INFO L492 BasicCegarLoop]: Found error trace [2022-03-19 02:59:34,595 INFO L500 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 33, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-19 02:59:34,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2022-03-19 02:59:34,811 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:59:34,811 INFO L403 AbstractCegarLoop]: === Iteration 34 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-03-19 02:59:34,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-19 02:59:34,812 INFO L85 PathProgramCache]: Analyzing trace with hash -331389959, now seen corresponding path program 65 times [2022-03-19 02:59:34,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy ACCELERATED_INTERPOLATION [2022-03-19 02:59:34,812 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleAcceleratedInterpolation [1594743773] [2022-03-19 02:59:34,813 INFO L202 tedInterpolationCore]: No loops in this trace, falling back to nested interpolation [2022-03-19 02:59:34,813 INFO L85 PathProgramCache]: Analyzing trace with hash -331389959, now seen corresponding path program 66 times [2022-03-19 02:59:34,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-19 02:59:34,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919594249] [2022-03-19 02:59:34,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-19 02:59:34,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-19 02:59:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:59:36,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-03-19 02:59:36,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-19 02:59:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 99 proven. 2640 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-19 02:59:36,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-19 02:59:36,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919594249] [2022-03-19 02:59:36,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919594249] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-19 02:59:36,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956373] [2022-03-19 02:59:36,856 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-19 02:59:36,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-19 02:59:36,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-19 02:59:36,857 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-19 02:59:36,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2022-03-19 02:59:46,880 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2022-03-19 02:59:46,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-19 02:59:46,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 999 conjuncts, 77 conjunts are in the unsatisfiable core [2022-03-19 02:59:46,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-19 02:59:48,942 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-19 02:59:48,942 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 26 [2022-03-19 02:59:49,205 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 96 proven. 131 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2022-03-19 02:59:49,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-19 02:59:55,548 INFO L134 CoverageAnalysis]: Checked inductivity of 2739 backedges. 0 proven. 227 refuted. 0 times theorem prover too weak. 2512 trivial. 0 not checked. [2022-03-19 02:59:55,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956373] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-19 02:59:55,548 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-19 02:59:55,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 22, 20] total 90 [2022-03-19 02:59:55,549 INFO L136 FreeRefinementEngine]: Strategy ACCELERATED_INTERPOLATION found an infeasible trace [2022-03-19 02:59:55,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleAcceleratedInterpolation [1594743773] [2022-03-19 02:59:55,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleAcceleratedInterpolation [1594743773] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-19 02:59:55,549 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-19 02:59:55,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [] total 52 [2022-03-19 02:59:55,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848776726] [2022-03-19 02:59:55,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-19 02:59:55,549 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-03-19 02:59:55,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy ACCELERATED_INTERPOLATION [2022-03-19 02:59:55,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-03-19 02:59:55,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1318, Invalid=6692, Unknown=0, NotChecked=0, Total=8010 [2022-03-19 02:59:55,550 INFO L87 Difference]: Start difference. First operand 214 states and 214 transitions. Second operand has 52 states, 52 states have (on average 4.038461538461538) internal successors, (210), 51 states have internal predecessors, (210), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:58,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-19 02:59:58,141 INFO L93 Difference]: Finished difference Result 216 states and 216 transitions. [2022-03-19 02:59:58,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-19 02:59:58,141 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 52 states have (on average 4.038461538461538) internal successors, (210), 51 states have internal predecessors, (210), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 213 [2022-03-19 02:59:58,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-19 02:59:58,141 INFO L225 Difference]: With dead ends: 216 [2022-03-19 02:59:58,141 INFO L226 Difference]: Without dead ends: 0 [2022-03-19 02:59:58,142 INFO L911 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 387 SyntacticMatches, 3 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1112 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=1367, Invalid=7005, Unknown=0, NotChecked=0, Total=8372 [2022-03-19 02:59:58,142 INFO L912 BasicCegarLoop]: 86 mSDtfsCounter, 21 mSDsluCounter, 3583 mSDsCounter, 0 mSdLazyCounter, 5847 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 3669 SdHoareTripleChecker+Invalid, 5853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 5847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-03-19 02:59:58,143 INFO L913 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 3669 Invalid, 5853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 5847 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-03-19 02:59:58,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-19 02:59:58,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-19 02:59:58,143 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) [2022-03-19 02:59:58,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-19 02:59:58,143 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 213 [2022-03-19 02:59:58,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-19 02:59:58,143 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-19 02:59:58,143 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 4.038461538461538) internal successors, (210), 51 states have internal predecessors, (210), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-03-19 02:59:58,143 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-19 02:59:58,143 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-19 02:59:58,145 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-03-19 02:59:58,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2022-03-19 02:59:58,346 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2022-03-19 02:59:58,348 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-03-19 03:00:02,952 INFO L882 garLoopResultBuilder]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2022-03-19 03:00:02,952 INFO L882 garLoopResultBuilder]: For program point reach_errorENTRY(line 4) no Hoare annotation was computed. [2022-03-19 03:00:02,952 INFO L882 garLoopResultBuilder]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2022-03-19 03:00:02,952 INFO L878 garLoopResultBuilder]: At program point L225(lines 225 604) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,953 INFO L878 garLoopResultBuilder]: At program point L192(lines 192 622) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,953 INFO L878 garLoopResultBuilder]: At program point L448(lines 408 481) the Hoare annotation is: (let ((.cse2 (+ (div ~Id_MCDC_93~0 4294967296) 1))) (let ((.cse0 (< 0 .cse2)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 33) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 26) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 14) .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= ~Id_MCDC_93~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 21) (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= ~Id_MCDC_93~0 37) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1 (<= ~Id_MCDC_93~0 18)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 41) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (not (<= .cse2 0)) .cse1) (and (<= ~Id_MCDC_93~0 12) (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 23) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) (<= ~Id_MCDC_93~0 34) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) (<= ~Id_MCDC_93~0 22) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse1) (not (<= |old(~Id_MCDC_93~0)| 9)) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= ~Id_MCDC_93~0 36) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 9)) (and (<= ~Id_MCDC_93~0 16) (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 15) (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 40) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40))))) [2022-03-19 03:00:02,953 INFO L885 garLoopResultBuilder]: At program point mainEXIT(lines 136 636) the Hoare annotation is: true [2022-03-19 03:00:02,953 INFO L878 garLoopResultBuilder]: At program point L184(lines 184 628) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,953 INFO L878 garLoopResultBuilder]: At program point L440(lines 440 453) the Hoare annotation is: (let ((.cse3 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse2 (+ .cse3 1))) (let ((.cse0 (< 0 .cse2)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= ~Id_MCDC_93~0 23) (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse1) (and (<= ~Id_MCDC_93~0 34) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 40) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) (<= ~Id_MCDC_93~0 14) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse1 (<= ~Id_MCDC_93~0 18)) (and (<= ~Id_MCDC_93~0 37) (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= ~Id_MCDC_93~0 32) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 16) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 22) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 21) .cse1) (and .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) (<= ~Id_MCDC_93~0 39) .cse1) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 41) (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (not (<= .cse2 0)) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= ~Id_MCDC_93~0 26) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and (<= ~Id_MCDC_93~0 33) .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) .cse0 (<= ~Id_MCDC_93~0 35) (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) (<= ~Id_MCDC_93~0 13) .cse1) (let ((.cse4 (* 4294967296 .cse3))) (and (<= .cse3 0) (< (+ .cse4 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (= |main_#t~mem55| 0) (<= ~Id_MCDC_93~0 (+ .cse4 41)) .cse1)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) (<= ~Id_MCDC_93~0 10) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 36) .cse1) (and .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 15) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 12) .cse0 (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1))))) [2022-03-19 03:00:02,953 INFO L878 garLoopResultBuilder]: At program point L407(lines 407 485) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,953 INFO L878 garLoopResultBuilder]: At program point L374(lines 374 503) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,953 INFO L878 garLoopResultBuilder]: At program point L465(lines 465 473) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,953 INFO L878 garLoopResultBuilder]: At program point L366(lines 366 509) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,953 INFO L878 garLoopResultBuilder]: At program point L234(lines 234 599) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L251(lines 251 587) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L218(lines 218 605) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L210(lines 210 611) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L433(lines 433 454) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse4 (+ .cse2 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) (<= ~Id_MCDC_93~0 28) .cse1) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= ~Id_MCDC_93~0 23) (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) .cse1) (and (<= ~Id_MCDC_93~0 34) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 40) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (let ((.cse3 (* 4294967296 .cse2))) (and (<= .cse2 0) (< (+ .cse3 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (<= ~Id_MCDC_93~0 (+ .cse3 41)) .cse1)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) (<= ~Id_MCDC_93~0 14) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) .cse1 (<= ~Id_MCDC_93~0 18)) (and (<= ~Id_MCDC_93~0 37) (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= ~Id_MCDC_93~0 32) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 16) .cse0 (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 22) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 21) .cse1) (and .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) (<= ~Id_MCDC_93~0 39) .cse1) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 41) (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (not (<= .cse4 0)) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= ~Id_MCDC_93~0 26) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and (<= ~Id_MCDC_93~0 33) .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) .cse0 (<= ~Id_MCDC_93~0 35) (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) (<= ~Id_MCDC_93~0 10) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 36) .cse1) (and .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 15) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 12) .cse0 (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1))))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L400(lines 400 486) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L425(lines 425 475) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse4 (+ .cse2 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 33) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 26) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 14) .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= ~Id_MCDC_93~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 21) (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= ~Id_MCDC_93~0 37) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1 (<= ~Id_MCDC_93~0 18)) (let ((.cse3 (* 4294967296 .cse2))) (and (<= .cse2 0) (< (+ .cse3 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (not (<= .cse4 0)) (<= ~Id_MCDC_93~0 (+ .cse3 41)) .cse1)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 12) (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 23) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) (<= ~Id_MCDC_93~0 34) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) (<= ~Id_MCDC_93~0 22) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse1) (not (<= |old(~Id_MCDC_93~0)| 9)) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= ~Id_MCDC_93~0 36) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 9)) (and (<= ~Id_MCDC_93~0 16) (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 15) (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 40) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)))))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L392(lines 392 492) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L260(lines 260 582) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L277(lines 277 570) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L244(lines 244 588) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L878 garLoopResultBuilder]: At program point L467(line 467) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,954 INFO L885 garLoopResultBuilder]: At program point mainFINAL(lines 136 636) the Hoare annotation is: true [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L236(lines 236 594) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= ~Id_MCDC_93~0 2) (<= 2 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 467) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L286(lines 286 565) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point mainENTRY(lines 136 636) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L303(lines 303 553) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L270(lines 270 571) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L262(lines 262 577) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 3) (<= 3 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L312(lines 312 548) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L329(lines 329 536) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L296(lines 296 554) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L164(lines 164 635) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,955 INFO L878 garLoopResultBuilder]: At program point L288(lines 288 560) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9)) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 4) (<= 4 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9))) [2022-03-19 03:00:02,956 INFO L878 garLoopResultBuilder]: At program point L338(lines 338 531) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,956 INFO L878 garLoopResultBuilder]: At program point L355(lines 355 519) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,956 INFO L878 garLoopResultBuilder]: At program point L322(lines 322 537) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,956 INFO L878 garLoopResultBuilder]: At program point L314(lines 314 543) the Hoare annotation is: (or (and (<= ~Id_MCDC_93~0 5) (<= 5 ~Id_MCDC_93~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,956 INFO L878 garLoopResultBuilder]: At program point L182(lines 182 633) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,956 INFO L878 garLoopResultBuilder]: At program point L364(lines 364 514) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,956 INFO L878 garLoopResultBuilder]: At program point L199(lines 199 621) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (= main_~Id_MCDC_89__Id_MCDC_96~0 0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,956 INFO L878 garLoopResultBuilder]: At program point L381(lines 381 502) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= 7 main_~Id_MCDC_89__Id_MCDC_96~0) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 7) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,957 INFO L878 garLoopResultBuilder]: At program point L348(lines 348 520) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,957 INFO L878 garLoopResultBuilder]: At program point L340(lines 340 526) the Hoare annotation is: (or (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= main_~Id_MCDC_89__Id_MCDC_96~0 6) (<= 6 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,957 INFO L878 garLoopResultBuilder]: At program point L208(lines 208 616) the Hoare annotation is: (or (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 1) (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= 1 main_~Id_MCDC_89__Id_MCDC_96~0) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (<= ~Id_MCDC_93~0 9)) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,957 INFO L878 garLoopResultBuilder]: At program point L423(lines 423 480) the Hoare annotation is: (let ((.cse2 (div ~Id_MCDC_93~0 4294967296))) (let ((.cse4 (+ .cse2 1))) (let ((.cse0 (< 0 .cse4)) (.cse1 (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0))) (or (and (<= ~Id_MCDC_93~0 33) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 33) (<= 33 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and .cse0 (<= ~Id_MCDC_93~0 30) (<= main_~Id_MCDC_89__Id_MCDC_96~0 30) .cse1 (<= 30 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= 26 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= ~Id_MCDC_93~0 26) (<= main_~Id_MCDC_89__Id_MCDC_96~0 26) .cse1) (and (<= 17 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 17) (<= ~Id_MCDC_93~0 17) .cse1) (and (<= ~Id_MCDC_93~0 14) .cse0 (<= 14 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 14) .cse1) (and (<= ~Id_MCDC_93~0 38) .cse0 (<= 38 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 38) .cse1) (and (<= ~Id_MCDC_93~0 10) .cse0 (<= 10 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 10) .cse1) (and .cse0 (<= 27 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 27) (<= main_~Id_MCDC_89__Id_MCDC_96~0 27) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 28) .cse0 (<= 28 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 28) .cse1) (and .cse0 (<= 32 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 32) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 32)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 25) (<= 25 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 25) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 20) (<= 20 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 20) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 21) (<= 21 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 21) .cse1) (and (<= ~Id_MCDC_93~0 37) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 37) .cse1 (<= 37 main_~Id_MCDC_89__Id_MCDC_96~0)) (and .cse0 (<= 24 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 24) (<= ~Id_MCDC_93~0 24) .cse1) (and (<= 18 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 18) .cse1 (<= ~Id_MCDC_93~0 18)) (let ((.cse3 (* 4294967296 .cse2))) (and (<= .cse2 0) (< (+ .cse3 40) ~Id_MCDC_93~0) (<= 41 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 41) (not (<= .cse4 0)) (<= ~Id_MCDC_93~0 (+ .cse3 41)) .cse1)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 29) (<= 29 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1 (<= ~Id_MCDC_93~0 29)) (and .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 39) (<= ~Id_MCDC_93~0 39) .cse1 (<= 39 main_~Id_MCDC_89__Id_MCDC_96~0)) (and (<= ~Id_MCDC_93~0 12) (<= 12 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 12) .cse1) (and (<= 23 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 23) (<= main_~Id_MCDC_89__Id_MCDC_96~0 23) .cse0 .cse1) (and (<= ~Id_MCDC_93~0 31) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 31) (<= 31 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 34) (<= ~Id_MCDC_93~0 34) .cse0 (<= 34 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= 22 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 22) (<= ~Id_MCDC_93~0 22) .cse1) (and (<= 35 main_~Id_MCDC_89__Id_MCDC_96~0) .cse0 (<= main_~Id_MCDC_89__Id_MCDC_96~0 35) (<= ~Id_MCDC_93~0 35) .cse1) (not (<= |old(~Id_MCDC_93~0)| 9)) (and .cse0 (<= ~Id_MCDC_93~0 11) (<= 11 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 11) .cse1) (and (<= 19 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 19) (<= main_~Id_MCDC_89__Id_MCDC_96~0 19) .cse0 .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 13) .cse0 (<= 13 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 13) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 36) .cse0 (<= ~Id_MCDC_93~0 36) (<= 36 main_~Id_MCDC_89__Id_MCDC_96~0) .cse1) (and (<= main_~Id_MCDC_89__Id_MCDC_96~0 9) .cse0 .cse1 (<= 9 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 9)) (and (<= ~Id_MCDC_93~0 16) (<= 16 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 16) .cse0 .cse1) (and .cse0 (<= ~Id_MCDC_93~0 15) (<= 15 main_~Id_MCDC_89__Id_MCDC_96~0) (<= main_~Id_MCDC_89__Id_MCDC_96~0 15) .cse1) (and .cse0 (<= 40 main_~Id_MCDC_89__Id_MCDC_96~0) (<= ~Id_MCDC_93~0 40) .cse1 (<= main_~Id_MCDC_89__Id_MCDC_96~0 40)))))) [2022-03-19 03:00:02,957 INFO L878 garLoopResultBuilder]: At program point L390(lines 390 497) the Hoare annotation is: (or (and (<= 8 ~Id_MCDC_93~0) (<= ~Id_MCDC_93~0 8) (= (select (select |#memory_int| |main_~#Id_MCDC_89__Id_MCDC_95~0.base|) (+ |main_~#Id_MCDC_89__Id_MCDC_95~0.offset| 492)) 0) (= ~Id_MCDC_93~0 main_~Id_MCDC_89__Id_MCDC_96~0)) (<= (+ (div |old(~Id_MCDC_93~0)| 4294967296) 1) 0) (not (<= |old(~Id_MCDC_93~0)| 9))) [2022-03-19 03:00:02,957 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2022-03-19 03:00:02,957 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__tmp_1075_0~0 |old(~__tmp_1075_0~0)|) (= ~__tmp_1075_1~0 |old(~__tmp_1075_1~0)|) (= ~__tmp_1075_2~0.offset |old(~__tmp_1075_2~0.offset)|) (= ~__return_main~0 |old(~__return_main~0)|) (= ~Id_MCDC_93~0 |old(~Id_MCDC_93~0)|) (= |old(~__tmp_1075_2~0.base)| ~__tmp_1075_2~0.base) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-03-19 03:00:02,957 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2022-03-19 03:00:02,957 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2022-03-19 03:00:02,957 INFO L878 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (< 0 (+ (div ~Id_MCDC_93~0 4294967296) 1)) (<= ~Id_MCDC_93~0 9)) [2022-03-19 03:00:02,957 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-03-19 03:00:02,957 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2022-03-19 03:00:02,959 INFO L718 BasicCegarLoop]: Path program histogram: [66, 2] [2022-03-19 03:00:02,960 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-19 03:00:02,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.03 03:00:02 BoogieIcfgContainer [2022-03-19 03:00:02,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-19 03:00:02,983 INFO L158 Benchmark]: Toolchain (without parser) took 618051.52ms. Allocated memory was 221.2MB in the beginning and 625.0MB in the end (delta: 403.7MB). Free memory was 168.1MB in the beginning and 347.2MB in the end (delta: -179.1MB). Peak memory consumption was 389.5MB. Max. memory is 8.0GB. [2022-03-19 03:00:02,983 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 221.2MB. Free memory is still 185.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-19 03:00:02,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 324.00ms. Allocated memory is still 221.2MB. Free memory was 167.9MB in the beginning and 185.0MB in the end (delta: -17.1MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. [2022-03-19 03:00:02,983 INFO L158 Benchmark]: Boogie Preprocessor took 84.33ms. Allocated memory is still 221.2MB. Free memory was 185.0MB in the beginning and 180.5MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2022-03-19 03:00:02,983 INFO L158 Benchmark]: RCFGBuilder took 724.60ms. Allocated memory was 221.2MB in the beginning and 277.9MB in the end (delta: 56.6MB). Free memory was 180.5MB in the beginning and 197.7MB in the end (delta: -17.2MB). Peak memory consumption was 41.8MB. Max. memory is 8.0GB. [2022-03-19 03:00:02,983 INFO L158 Benchmark]: TraceAbstraction took 616915.00ms. Allocated memory was 277.9MB in the beginning and 625.0MB in the end (delta: 347.1MB). Free memory was 197.2MB in the beginning and 347.2MB in the end (delta: -149.9MB). Peak memory consumption was 360.6MB. Max. memory is 8.0GB. [2022-03-19 03:00:02,984 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 221.2MB. Free memory is still 185.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 324.00ms. Allocated memory is still 221.2MB. Free memory was 167.9MB in the beginning and 185.0MB in the end (delta: -17.1MB). Peak memory consumption was 8.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 84.33ms. Allocated memory is still 221.2MB. Free memory was 185.0MB in the beginning and 180.5MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 724.60ms. Allocated memory was 221.2MB in the beginning and 277.9MB in the end (delta: 56.6MB). Free memory was 180.5MB in the beginning and 197.7MB in the end (delta: -17.2MB). Peak memory consumption was 41.8MB. Max. memory is 8.0GB. * TraceAbstraction took 616915.00ms. Allocated memory was 277.9MB in the beginning and 625.0MB in the end (delta: 347.1MB). Free memory was 197.2MB in the beginning and 347.2MB in the end (delta: -149.9MB). Peak memory consumption was 360.6MB. 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 - PositiveResult [Line: 467]: 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 4 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 616.8s, OverallIterations: 34, TraceHistogramMax: 34, PathProgramHistogramMax: 66, EmptinessCheckTime: 0.0s, AutomataDifference: 56.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2708 SdHoareTripleChecker+Valid, 37.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2708 mSDsluCounter, 38918 SdHoareTripleChecker+Invalid, 31.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 37601 mSDsCounter, 1676 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 112705 IncrementalHoareTripleChecker+Invalid, 114381 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1676 mSolverCounterUnsat, 1317 mSDtfsCounter, 112705 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10715 GetRequests, 7893 SyntacticMatches, 43 SemanticMatches, 2779 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28646 ImplicationChecksByTransitivity, 82.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred in iteration=33, InterpolantAutomatonStates: 1070, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 34 MinimizatonAttempts, 99 StatesRemovedByMinimization, 33 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 248 NumberOfFragments, 5823 HoareAnnotationTreeSize, 55 FomulaSimplifications, 10311 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 55 FomulaSimplificationsInter, 5978 FormulaSimplificationTreeSizeReductionInter, 4.4s 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: 408]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((Id_MCDC_93 <= 33 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 33) && 33 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 30) && Id_MCDC_89__Id_MCDC_96 <= 30) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 30 <= Id_MCDC_89__Id_MCDC_96)) || ((((26 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 26) && Id_MCDC_89__Id_MCDC_96 <= 26) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((17 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 17) && Id_MCDC_93 <= 17) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 14 && 0 < Id_MCDC_93 / 4294967296 + 1) && 14 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 14) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 38 && 0 < Id_MCDC_93 / 4294967296 + 1) && 38 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 38) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 10 && 0 < Id_MCDC_93 / 4294967296 + 1) && 10 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 10) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 27 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 27) && Id_MCDC_89__Id_MCDC_96 <= 27) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 28 && 0 < Id_MCDC_93 / 4294967296 + 1) && 28 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 28) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 32 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 32) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 32)) || \old(Id_MCDC_93) / 4294967296 + 1 <= 0) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 25) && 25 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 25) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 20 && 20 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 20) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 21) && 21 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 21) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 37 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 37) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 37 <= Id_MCDC_89__Id_MCDC_96)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 24 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 24) && Id_MCDC_93 <= 24) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((18 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 18) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 18)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 29) && 29 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_93 <= 29)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_89__Id_MCDC_96 <= 39) && Id_MCDC_93 <= 39) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 39 <= Id_MCDC_89__Id_MCDC_96)) || ((((Id_MCDC_93 <= 41 && 41 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 41) && !(Id_MCDC_93 / 4294967296 + 1 <= 0)) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 12 && 12 <= Id_MCDC_89__Id_MCDC_96) && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 12) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((23 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 23) && Id_MCDC_89__Id_MCDC_96 <= 23) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_93 <= 31 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 31) && 31 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 34 && Id_MCDC_93 <= 34) && 0 < Id_MCDC_93 / 4294967296 + 1) && 34 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((22 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 22) && Id_MCDC_93 <= 22) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((35 <= Id_MCDC_89__Id_MCDC_96 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_89__Id_MCDC_96 <= 35) && Id_MCDC_93 <= 35) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || !(\old(Id_MCDC_93) <= 9)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 11) && 11 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 11) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((19 <= Id_MCDC_89__Id_MCDC_96 && Id_MCDC_93 <= 19) && Id_MCDC_89__Id_MCDC_96 <= 19) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 13 && 0 < Id_MCDC_93 / 4294967296 + 1) && 13 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 13) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 36 && 0 < Id_MCDC_93 / 4294967296 + 1) && Id_MCDC_93 <= 36) && 36 <= Id_MCDC_89__Id_MCDC_96) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((Id_MCDC_89__Id_MCDC_96 <= 9 && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && 9 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 9)) || ((((Id_MCDC_93 <= 16 && 16 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 16) && 0 < Id_MCDC_93 / 4294967296 + 1) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && Id_MCDC_93 <= 15) && 15 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_89__Id_MCDC_96 <= 15) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0)) || ((((0 < Id_MCDC_93 / 4294967296 + 1 && 40 <= Id_MCDC_89__Id_MCDC_96) && Id_MCDC_93 <= 40) && unknown-#memory_int-unknown[Id_MCDC_89__Id_MCDC_95][Id_MCDC_89__Id_MCDC_95 + 492] == 0) && Id_MCDC_89__Id_MCDC_96 <= 40) - ProcedureContractResult [Line: 136]: Procedure Contract for main Derived contract for procedure main: 1 RESULT: Ultimate proved your program to be correct! [2022-03-19 03:00:03,044 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...