/usr/bin/java -ea -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/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 21:18:12,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 21:18:12,957 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 21:18:12,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-07 21:18:12,988 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-07 21:18:12,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-07 21:18:12,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-07 21:18:12,993 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-07 21:18:12,994 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-07 21:18:12,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-07 21:18:12,998 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-07 21:18:12,999 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-07 21:18:12,999 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 21:18:13,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 21:18:13,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 21:18:13,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 21:18:13,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 21:18:13,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 21:18:13,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 21:18:13,011 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 21:18:13,012 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 21:18:13,013 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 21:18:13,014 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 21:18:13,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 21:18:13,015 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 21:18:13,020 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 21:18:13,025 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 21:18:13,026 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 21:18:13,027 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 21:18:13,027 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-07 21:18:13,036 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 21:18:13,037 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 21:18:13,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 21:18:13,038 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-07 21:18:13,038 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 21:18:13,038 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-07 21:18:13,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 21:18:13,038 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 21:18:13,038 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 21:18:13,039 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 21:18:13,039 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-07 21:18:13,039 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 21:18:13,039 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 21:18:13,039 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 21:18:13,039 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 21:18:13,039 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 21:18:13,039 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-07 21:18:13,040 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 21:18:13,040 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 21:18:13,040 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 21:18:13,040 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 21:18:13,040 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-07 21:18:13,040 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 21:18:13,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 21:18:13,242 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 21:18:13,244 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 21:18:13,244 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 21:18:13,245 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 21:18:13,246 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c [2022-04-07 21:18:13,290 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a39da901c/7ae3b49cf16c49d286120cf2b80a3ca2/FLAGe158eefbf [2022-04-07 21:18:13,578 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 21:18:13,578 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c [2022-04-07 21:18:13,589 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a39da901c/7ae3b49cf16c49d286120cf2b80a3ca2/FLAGe158eefbf [2022-04-07 21:18:14,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a39da901c/7ae3b49cf16c49d286120cf2b80a3ca2 [2022-04-07 21:18:14,006 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 21:18:14,007 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-07 21:18:14,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 21:18:14,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 21:18:14,012 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 21:18:14,013 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5abadced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14, skipping insertion in model container [2022-04-07 21:18:14,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,018 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 21:18:14,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 21:18:14,158 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-04-07 21:18:14,160 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 21:18:14,183 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 21:18:14,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/openssl-simplified/s3_srvr_1b.cil.c[8244,8257] [2022-04-07 21:18:14,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 21:18:14,208 INFO L208 MainTranslator]: Completed translation [2022-04-07 21:18:14,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14 WrapperNode [2022-04-07 21:18:14,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 21:18:14,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 21:18:14,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 21:18:14,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 21:18:14,216 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,221 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,239 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 21:18:14,247 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 21:18:14,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 21:18:14,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 21:18:14,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 21:18:14,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 21:18:14,276 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) [2022-04-07 21:18:14,299 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 [2022-04-07 21:18:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 21:18:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 21:18:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 21:18:14,309 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 21:18:14,311 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 21:18:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 21:18:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 21:18:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 21:18:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2022-04-07 21:18:14,312 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-07 21:18:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2022-04-07 21:18:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 21:18:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 21:18:14,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 21:18:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 21:18:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 21:18:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 21:18:14,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 21:18:14,358 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 21:18:14,359 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 21:18:14,497 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 21:18:14,517 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 21:18:14,517 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 21:18:14,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 09:18:14 BoogieIcfgContainer [2022-04-07 21:18:14,518 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 21:18:14,519 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-07 21:18:14,519 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-07 21:18:14,520 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-07 21:18:14,522 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 09:18:14" (1/1) ... [2022-04-07 21:18:14,523 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-07 21:18:14,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 09:18:14 BasicIcfg [2022-04-07 21:18:14,552 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-07 21:18:14,553 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 21:18:14,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 21:18:14,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 21:18:14,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 09:18:14" (1/4) ... [2022-04-07 21:18:14,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5670d72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 09:18:14, skipping insertion in model container [2022-04-07 21:18:14,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 09:18:14" (2/4) ... [2022-04-07 21:18:14,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5670d72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 09:18:14, skipping insertion in model container [2022-04-07 21:18:14,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 09:18:14" (3/4) ... [2022-04-07 21:18:14,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5670d72b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 09:18:14, skipping insertion in model container [2022-04-07 21:18:14,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 09:18:14" (4/4) ... [2022-04-07 21:18:14,558 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1b.cil.cJordan [2022-04-07 21:18:14,562 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-07 21:18:14,562 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 21:18:14,606 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 21:18:14,613 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, 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 [2022-04-07 21:18:14,613 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 21:18:14,627 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 24 states have internal predecessors, (40), 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) [2022-04-07 21:18:14,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-04-07 21:18:14,634 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 21:18:14,634 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 21:18:14,635 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 21:18:14,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 21:18:14,640 INFO L85 PathProgramCache]: Analyzing trace with hash 472059503, now seen corresponding path program 1 times [2022-04-07 21:18:14,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 21:18:14,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297960385] [2022-04-07 21:18:14,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 21:18:14,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 21:18:14,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:14,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 21:18:14,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:14,827 INFO L290 TraceCheckUtils]: 0: Hoare triple {38#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {32#true} is VALID [2022-04-07 21:18:14,827 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 21:18:14,827 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {32#true} {32#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 21:18:14,829 INFO L272 TraceCheckUtils]: 0: Hoare triple {32#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {38#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 21:18:14,830 INFO L290 TraceCheckUtils]: 1: Hoare triple {38#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {32#true} is VALID [2022-04-07 21:18:14,830 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 21:18:14,830 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 21:18:14,830 INFO L272 TraceCheckUtils]: 4: Hoare triple {32#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-07 21:18:14,831 INFO L290 TraceCheckUtils]: 5: Hoare triple {32#true} [115] mainENTRY-->L111: Formula: (and (= v_main_~s__state~0_1 8466) (= |v_main_#t~nondet4_2| v_main_~s__hit~0_1) (= v_main_~blastFlag~0_1 0) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~tmp___1~0=v_main_~tmp___1~0_1, main_~s__state~0=v_main_~s__state~0_1, main_~s__hit~0=v_main_~s__hit~0_1, main_~blastFlag~0=v_main_~blastFlag~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~tmp___1~0, main_~blastFlag~0, main_~s__state~0, main_~s__hit~0] {37#(= main_~blastFlag~0 0)} is VALID [2022-04-07 21:18:14,832 INFO L290 TraceCheckUtils]: 6: Hoare triple {37#(= main_~blastFlag~0 0)} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {37#(= main_~blastFlag~0 0)} is VALID [2022-04-07 21:18:14,833 INFO L290 TraceCheckUtils]: 7: Hoare triple {37#(= main_~blastFlag~0 0)} [121] L30-->L108: Formula: (and (< 2 v_main_~blastFlag~0_6) (<= v_main_~s__state~0_5 8512)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_6, main_~s__state~0=v_main_~s__state~0_5} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_6, main_~s__state~0=v_main_~s__state~0_5} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-07 21:18:14,834 INFO L290 TraceCheckUtils]: 8: Hoare triple {33#false} [124] L108-->mainErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-07 21:18:14,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 21:18:14,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 21:18:14,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297960385] [2022-04-07 21:18:14,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297960385] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 21:18:14,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 21:18:14,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 21:18:14,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566293836] [2022-04-07 21:18:14,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 21:18:14,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 9 [2022-04-07 21:18:14,844 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 21:18:14,846 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-04-07 21:18:14,868 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:14,869 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 21:18:14,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 21:18:14,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 21:18:14,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 21:18:14,886 INFO L87 Difference]: Start difference. First operand has 29 states, 23 states have (on average 1.7391304347826086) internal successors, (40), 24 states have internal predecessors, (40), 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 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-04-07 21:18:15,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,092 INFO L93 Difference]: Finished difference Result 47 states and 66 transitions. [2022-04-07 21:18:15,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 21:18:15,093 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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 9 [2022-04-07 21:18:15,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 21:18:15,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-04-07 21:18:15,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2022-04-07 21:18:15,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-04-07 21:18:15,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 77 transitions. [2022-04-07 21:18:15,106 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 77 transitions. [2022-04-07 21:18:15,191 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 77 edges. 77 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:15,211 INFO L225 Difference]: With dead ends: 47 [2022-04-07 21:18:15,211 INFO L226 Difference]: Without dead ends: 39 [2022-04-07 21:18:15,212 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 21:18:15,214 INFO L913 BasicCegarLoop]: 35 mSDtfsCounter, 79 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 21:18:15,215 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [79 Valid, 44 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 21:18:15,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-04-07 21:18:15,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-04-07 21:18:15,234 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 21:18:15,235 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand has 39 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 35 states have internal predecessors, (50), 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) [2022-04-07 21:18:15,236 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand has 39 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 35 states have internal predecessors, (50), 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) [2022-04-07 21:18:15,236 INFO L87 Difference]: Start difference. First operand 39 states. Second operand has 39 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 35 states have internal predecessors, (50), 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) [2022-04-07 21:18:15,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,240 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2022-04-07 21:18:15,240 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2022-04-07 21:18:15,240 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:15,240 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:15,241 INFO L74 IsIncluded]: Start isIncluded. First operand has 39 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 35 states have internal predecessors, (50), 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) Second operand 39 states. [2022-04-07 21:18:15,241 INFO L87 Difference]: Start difference. First operand has 39 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 35 states have internal predecessors, (50), 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) Second operand 39 states. [2022-04-07 21:18:15,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,244 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2022-04-07 21:18:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2022-04-07 21:18:15,244 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:15,244 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:15,244 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 21:18:15,245 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 21:18:15,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 35 states have (on average 1.4285714285714286) internal successors, (50), 35 states have internal predecessors, (50), 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) [2022-04-07 21:18:15,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2022-04-07 21:18:15,248 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 9 [2022-04-07 21:18:15,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 21:18:15,248 INFO L478 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2022-04-07 21:18:15,248 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.5) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-04-07 21:18:15,248 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2022-04-07 21:18:15,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-07 21:18:15,249 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 21:18:15,249 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 21:18:15,249 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 21:18:15,249 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 21:18:15,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 21:18:15,250 INFO L85 PathProgramCache]: Analyzing trace with hash -493282618, now seen corresponding path program 1 times [2022-04-07 21:18:15,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 21:18:15,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954453353] [2022-04-07 21:18:15,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 21:18:15,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 21:18:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:15,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 21:18:15,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:15,321 INFO L290 TraceCheckUtils]: 0: Hoare triple {213#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {207#true} is VALID [2022-04-07 21:18:15,321 INFO L290 TraceCheckUtils]: 1: Hoare triple {207#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-07 21:18:15,321 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {207#true} {207#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-07 21:18:15,322 INFO L272 TraceCheckUtils]: 0: Hoare triple {207#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {213#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 21:18:15,323 INFO L290 TraceCheckUtils]: 1: Hoare triple {213#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {207#true} is VALID [2022-04-07 21:18:15,323 INFO L290 TraceCheckUtils]: 2: Hoare triple {207#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-07 21:18:15,323 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {207#true} {207#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-07 21:18:15,323 INFO L272 TraceCheckUtils]: 4: Hoare triple {207#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-07 21:18:15,323 INFO L290 TraceCheckUtils]: 5: Hoare triple {207#true} [115] mainENTRY-->L111: Formula: (and (= v_main_~s__state~0_1 8466) (= |v_main_#t~nondet4_2| v_main_~s__hit~0_1) (= v_main_~blastFlag~0_1 0) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~tmp___1~0=v_main_~tmp___1~0_1, main_~s__state~0=v_main_~s__state~0_1, main_~s__hit~0=v_main_~s__hit~0_1, main_~blastFlag~0=v_main_~blastFlag~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~tmp___1~0, main_~blastFlag~0, main_~s__state~0, main_~s__hit~0] {207#true} is VALID [2022-04-07 21:18:15,324 INFO L290 TraceCheckUtils]: 6: Hoare triple {207#true} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-07 21:18:15,324 INFO L290 TraceCheckUtils]: 7: Hoare triple {207#true} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-07 21:18:15,324 INFO L290 TraceCheckUtils]: 8: Hoare triple {207#true} [126] L36-->L37: Formula: (= v_main_~s__state~0_7 8466) InVars {main_~s__state~0=v_main_~s__state~0_7} OutVars{main_~s__state~0=v_main_~s__state~0_7} AuxVars[] AssignedVars[] {207#true} is VALID [2022-04-07 21:18:15,324 INFO L290 TraceCheckUtils]: 9: Hoare triple {207#true} [128] L37-->L69-1: Formula: (and (= 2 v_main_~blastFlag~0_13) (= v_main_~blastFlag~0_14 0)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_14} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_13} AuxVars[] AssignedVars[main_~blastFlag~0] {207#true} is VALID [2022-04-07 21:18:15,326 INFO L290 TraceCheckUtils]: 10: Hoare triple {207#true} [132] L69-1-->L111: Formula: (and (not (= v_main_~s__hit~0_6 0)) (= v_main_~s__state~0_16 8656)) InVars {main_~s__hit~0=v_main_~s__hit~0_6} OutVars{main_~s__state~0=v_main_~s__state~0_16, main_~s__hit~0=v_main_~s__hit~0_6} AuxVars[] AssignedVars[main_~s__state~0] {212#(<= 8656 main_~s__state~0)} is VALID [2022-04-07 21:18:15,327 INFO L290 TraceCheckUtils]: 11: Hoare triple {212#(<= 8656 main_~s__state~0)} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {212#(<= 8656 main_~s__state~0)} is VALID [2022-04-07 21:18:15,328 INFO L290 TraceCheckUtils]: 12: Hoare triple {212#(<= 8656 main_~s__state~0)} [121] L30-->L108: Formula: (and (< 2 v_main_~blastFlag~0_6) (<= v_main_~s__state~0_5 8512)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_6, main_~s__state~0=v_main_~s__state~0_5} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_6, main_~s__state~0=v_main_~s__state~0_5} AuxVars[] AssignedVars[] {208#false} is VALID [2022-04-07 21:18:15,328 INFO L290 TraceCheckUtils]: 13: Hoare triple {208#false} [124] L108-->mainErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#false} is VALID [2022-04-07 21:18:15,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 21:18:15,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 21:18:15,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1954453353] [2022-04-07 21:18:15,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1954453353] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 21:18:15,329 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 21:18:15,329 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 21:18:15,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157714905] [2022-04-07 21:18:15,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 21:18:15,330 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 14 [2022-04-07 21:18:15,330 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 21:18:15,330 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,346 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:15,347 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 21:18:15,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 21:18:15,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 21:18:15,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 21:18:15,349 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,468 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2022-04-07 21:18:15,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 21:18:15,469 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 14 [2022-04-07 21:18:15,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 21:18:15,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-04-07 21:18:15,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 45 transitions. [2022-04-07 21:18:15,472 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 45 transitions. [2022-04-07 21:18:15,509 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:15,513 INFO L225 Difference]: With dead ends: 53 [2022-04-07 21:18:15,513 INFO L226 Difference]: Without dead ends: 53 [2022-04-07 21:18:15,515 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 21:18:15,517 INFO L913 BasicCegarLoop]: 36 mSDtfsCounter, 40 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 21:18:15,518 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 43 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 21:18:15,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-04-07 21:18:15,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 49. [2022-04-07 21:18:15,527 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 21:18:15,528 INFO L82 GeneralOperation]: Start isEquivalent. First operand 53 states. Second operand has 49 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 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) [2022-04-07 21:18:15,530 INFO L74 IsIncluded]: Start isIncluded. First operand 53 states. Second operand has 49 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 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) [2022-04-07 21:18:15,530 INFO L87 Difference]: Start difference. First operand 53 states. Second operand has 49 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 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) [2022-04-07 21:18:15,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,538 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2022-04-07 21:18:15,538 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2022-04-07 21:18:15,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:15,539 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:15,539 INFO L74 IsIncluded]: Start isIncluded. First operand has 49 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 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) Second operand 53 states. [2022-04-07 21:18:15,539 INFO L87 Difference]: Start difference. First operand has 49 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 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) Second operand 53 states. [2022-04-07 21:18:15,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,541 INFO L93 Difference]: Finished difference Result 53 states and 66 transitions. [2022-04-07 21:18:15,541 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 66 transitions. [2022-04-07 21:18:15,542 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:15,542 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:15,542 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 21:18:15,542 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 21:18:15,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 45 states have internal predecessors, (60), 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) [2022-04-07 21:18:15,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2022-04-07 21:18:15,544 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 14 [2022-04-07 21:18:15,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 21:18:15,544 INFO L478 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2022-04-07 21:18:15,544 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,544 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2022-04-07 21:18:15,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-04-07 21:18:15,545 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 21:18:15,545 INFO L499 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 21:18:15,545 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 21:18:15,545 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 21:18:15,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 21:18:15,546 INFO L85 PathProgramCache]: Analyzing trace with hash -493252827, now seen corresponding path program 1 times [2022-04-07 21:18:15,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 21:18:15,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952995549] [2022-04-07 21:18:15,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 21:18:15,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 21:18:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:15,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 21:18:15,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:15,623 INFO L290 TraceCheckUtils]: 0: Hoare triple {433#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {427#true} is VALID [2022-04-07 21:18:15,623 INFO L290 TraceCheckUtils]: 1: Hoare triple {427#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-07 21:18:15,624 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {427#true} {427#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-07 21:18:15,624 INFO L272 TraceCheckUtils]: 0: Hoare triple {427#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {433#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 21:18:15,625 INFO L290 TraceCheckUtils]: 1: Hoare triple {433#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {427#true} is VALID [2022-04-07 21:18:15,625 INFO L290 TraceCheckUtils]: 2: Hoare triple {427#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-07 21:18:15,625 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {427#true} {427#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-07 21:18:15,625 INFO L272 TraceCheckUtils]: 4: Hoare triple {427#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-07 21:18:15,625 INFO L290 TraceCheckUtils]: 5: Hoare triple {427#true} [115] mainENTRY-->L111: Formula: (and (= v_main_~s__state~0_1 8466) (= |v_main_#t~nondet4_2| v_main_~s__hit~0_1) (= v_main_~blastFlag~0_1 0) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~tmp___1~0=v_main_~tmp___1~0_1, main_~s__state~0=v_main_~s__state~0_1, main_~s__hit~0=v_main_~s__hit~0_1, main_~blastFlag~0=v_main_~blastFlag~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~tmp___1~0, main_~blastFlag~0, main_~s__state~0, main_~s__hit~0] {427#true} is VALID [2022-04-07 21:18:15,625 INFO L290 TraceCheckUtils]: 6: Hoare triple {427#true} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-07 21:18:15,626 INFO L290 TraceCheckUtils]: 7: Hoare triple {427#true} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-07 21:18:15,626 INFO L290 TraceCheckUtils]: 8: Hoare triple {427#true} [126] L36-->L37: Formula: (= v_main_~s__state~0_7 8466) InVars {main_~s__state~0=v_main_~s__state~0_7} OutVars{main_~s__state~0=v_main_~s__state~0_7} AuxVars[] AssignedVars[] {427#true} is VALID [2022-04-07 21:18:15,627 INFO L290 TraceCheckUtils]: 9: Hoare triple {427#true} [128] L37-->L69-1: Formula: (and (= 2 v_main_~blastFlag~0_13) (= v_main_~blastFlag~0_14 0)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_14} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_13} AuxVars[] AssignedVars[main_~blastFlag~0] {432#(= (+ (- 2) main_~blastFlag~0) 0)} is VALID [2022-04-07 21:18:15,627 INFO L290 TraceCheckUtils]: 10: Hoare triple {432#(= (+ (- 2) main_~blastFlag~0) 0)} [133] L69-1-->L111: Formula: (and (= v_main_~s__state~0_17 8512) (= v_main_~s__hit~0_7 0)) InVars {main_~s__hit~0=v_main_~s__hit~0_7} OutVars{main_~s__state~0=v_main_~s__state~0_17, main_~s__hit~0=v_main_~s__hit~0_7} AuxVars[] AssignedVars[main_~s__state~0] {432#(= (+ (- 2) main_~blastFlag~0) 0)} is VALID [2022-04-07 21:18:15,627 INFO L290 TraceCheckUtils]: 11: Hoare triple {432#(= (+ (- 2) main_~blastFlag~0) 0)} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {432#(= (+ (- 2) main_~blastFlag~0) 0)} is VALID [2022-04-07 21:18:15,628 INFO L290 TraceCheckUtils]: 12: Hoare triple {432#(= (+ (- 2) main_~blastFlag~0) 0)} [121] L30-->L108: Formula: (and (< 2 v_main_~blastFlag~0_6) (<= v_main_~s__state~0_5 8512)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_6, main_~s__state~0=v_main_~s__state~0_5} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_6, main_~s__state~0=v_main_~s__state~0_5} AuxVars[] AssignedVars[] {428#false} is VALID [2022-04-07 21:18:15,628 INFO L290 TraceCheckUtils]: 13: Hoare triple {428#false} [124] L108-->mainErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {428#false} is VALID [2022-04-07 21:18:15,628 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 21:18:15,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 21:18:15,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952995549] [2022-04-07 21:18:15,629 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952995549] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 21:18:15,629 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 21:18:15,629 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 21:18:15,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116266453] [2022-04-07 21:18:15,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 21:18:15,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 14 [2022-04-07 21:18:15,630 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 21:18:15,630 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,640 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:15,641 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 21:18:15,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 21:18:15,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 21:18:15,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 21:18:15,642 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,768 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2022-04-07 21:18:15,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 21:18:15,769 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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 14 [2022-04-07 21:18:15,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 21:18:15,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2022-04-07 21:18:15,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 56 transitions. [2022-04-07 21:18:15,771 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 56 transitions. [2022-04-07 21:18:15,812 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 56 edges. 56 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:15,813 INFO L225 Difference]: With dead ends: 67 [2022-04-07 21:18:15,813 INFO L226 Difference]: Without dead ends: 67 [2022-04-07 21:18:15,813 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 21:18:15,814 INFO L913 BasicCegarLoop]: 44 mSDtfsCounter, 47 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 21:18:15,814 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [47 Valid, 51 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 21:18:15,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-04-07 21:18:15,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-04-07 21:18:15,817 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 21:18:15,817 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand has 67 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 63 states have internal predecessors, (83), 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) [2022-04-07 21:18:15,818 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand has 67 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 63 states have internal predecessors, (83), 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) [2022-04-07 21:18:15,818 INFO L87 Difference]: Start difference. First operand 67 states. Second operand has 67 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 63 states have internal predecessors, (83), 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) [2022-04-07 21:18:15,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,820 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2022-04-07 21:18:15,820 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-04-07 21:18:15,820 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:15,820 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:15,821 INFO L74 IsIncluded]: Start isIncluded. First operand has 67 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 63 states have internal predecessors, (83), 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) Second operand 67 states. [2022-04-07 21:18:15,821 INFO L87 Difference]: Start difference. First operand has 67 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 63 states have internal predecessors, (83), 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) Second operand 67 states. [2022-04-07 21:18:15,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,823 INFO L93 Difference]: Finished difference Result 67 states and 86 transitions. [2022-04-07 21:18:15,823 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-04-07 21:18:15,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:15,823 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:15,824 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 21:18:15,824 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 21:18:15,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 63 states have internal predecessors, (83), 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) [2022-04-07 21:18:15,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2022-04-07 21:18:15,825 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 14 [2022-04-07 21:18:15,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 21:18:15,826 INFO L478 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-04-07 21:18:15,826 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 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) [2022-04-07 21:18:15,826 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-04-07 21:18:15,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-04-07 21:18:15,826 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 21:18:15,826 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 21:18:15,827 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-07 21:18:15,827 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 21:18:15,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 21:18:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1278160632, now seen corresponding path program 1 times [2022-04-07 21:18:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 21:18:15,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [898833877] [2022-04-07 21:18:15,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 21:18:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 21:18:15,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:15,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 21:18:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:15,860 INFO L290 TraceCheckUtils]: 0: Hoare triple {713#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {707#true} is VALID [2022-04-07 21:18:15,860 INFO L290 TraceCheckUtils]: 1: Hoare triple {707#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,860 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {707#true} {707#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,861 INFO L272 TraceCheckUtils]: 0: Hoare triple {707#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {713#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 21:18:15,861 INFO L290 TraceCheckUtils]: 1: Hoare triple {713#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {707#true} is VALID [2022-04-07 21:18:15,861 INFO L290 TraceCheckUtils]: 2: Hoare triple {707#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,861 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {707#true} {707#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,861 INFO L272 TraceCheckUtils]: 4: Hoare triple {707#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,862 INFO L290 TraceCheckUtils]: 5: Hoare triple {707#true} [115] mainENTRY-->L111: Formula: (and (= v_main_~s__state~0_1 8466) (= |v_main_#t~nondet4_2| v_main_~s__hit~0_1) (= v_main_~blastFlag~0_1 0) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~tmp___1~0=v_main_~tmp___1~0_1, main_~s__state~0=v_main_~s__state~0_1, main_~s__hit~0=v_main_~s__hit~0_1, main_~blastFlag~0=v_main_~blastFlag~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~tmp___1~0, main_~blastFlag~0, main_~s__state~0, main_~s__hit~0] {707#true} is VALID [2022-04-07 21:18:15,862 INFO L290 TraceCheckUtils]: 6: Hoare triple {707#true} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,862 INFO L290 TraceCheckUtils]: 7: Hoare triple {707#true} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,862 INFO L290 TraceCheckUtils]: 8: Hoare triple {707#true} [126] L36-->L37: Formula: (= v_main_~s__state~0_7 8466) InVars {main_~s__state~0=v_main_~s__state~0_7} OutVars{main_~s__state~0=v_main_~s__state~0_7} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,862 INFO L290 TraceCheckUtils]: 9: Hoare triple {707#true} [128] L37-->L69-1: Formula: (and (= 2 v_main_~blastFlag~0_13) (= v_main_~blastFlag~0_14 0)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_14} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_13} AuxVars[] AssignedVars[main_~blastFlag~0] {707#true} is VALID [2022-04-07 21:18:15,862 INFO L290 TraceCheckUtils]: 10: Hoare triple {707#true} [132] L69-1-->L111: Formula: (and (not (= v_main_~s__hit~0_6 0)) (= v_main_~s__state~0_16 8656)) InVars {main_~s__hit~0=v_main_~s__hit~0_6} OutVars{main_~s__state~0=v_main_~s__state~0_16, main_~s__hit~0=v_main_~s__hit~0_6} AuxVars[] AssignedVars[main_~s__state~0] {707#true} is VALID [2022-04-07 21:18:15,863 INFO L290 TraceCheckUtils]: 11: Hoare triple {707#true} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,863 INFO L290 TraceCheckUtils]: 12: Hoare triple {707#true} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,863 INFO L290 TraceCheckUtils]: 13: Hoare triple {707#true} [127] L36-->L41: Formula: (not (= v_main_~s__state~0_8 8466)) InVars {main_~s__state~0=v_main_~s__state~0_8} OutVars{main_~s__state~0=v_main_~s__state~0_8} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,863 INFO L290 TraceCheckUtils]: 14: Hoare triple {707#true} [131] L41-->L57: Formula: (not (= v_main_~s__state~0_10 8512)) InVars {main_~s__state~0=v_main_~s__state~0_10} OutVars{main_~s__state~0=v_main_~s__state~0_10} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,863 INFO L290 TraceCheckUtils]: 15: Hoare triple {707#true} [136] L57-->L61: Formula: (not (= v_main_~s__state~0_13 8640)) InVars {main_~s__state~0=v_main_~s__state~0_13} OutVars{main_~s__state~0=v_main_~s__state~0_13} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,863 INFO L290 TraceCheckUtils]: 16: Hoare triple {707#true} [141] L61-->L62: Formula: (= v_main_~s__state~0_14 8656) InVars {main_~s__state~0=v_main_~s__state~0_14} OutVars{main_~s__state~0=v_main_~s__state~0_14} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-07 21:18:15,864 INFO L290 TraceCheckUtils]: 17: Hoare triple {707#true} [145] L62-->L100-1: Formula: (and (= v_main_~blastFlag~0_4 2) (= v_main_~blastFlag~0_3 3)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_4} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_3} AuxVars[] AssignedVars[main_~blastFlag~0] {712#(= 3 main_~blastFlag~0)} is VALID [2022-04-07 21:18:15,864 INFO L290 TraceCheckUtils]: 18: Hoare triple {712#(= 3 main_~blastFlag~0)} [148] L100-1-->L107: Formula: (not (= v_main_~blastFlag~0_10 4)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_10} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_10} AuxVars[] AssignedVars[] {712#(= 3 main_~blastFlag~0)} is VALID [2022-04-07 21:18:15,864 INFO L290 TraceCheckUtils]: 19: Hoare triple {712#(= 3 main_~blastFlag~0)} [151] L107-->L108: Formula: (= 5 v_main_~blastFlag~0_11) InVars {main_~blastFlag~0=v_main_~blastFlag~0_11} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_11} AuxVars[] AssignedVars[] {708#false} is VALID [2022-04-07 21:18:15,865 INFO L290 TraceCheckUtils]: 20: Hoare triple {708#false} [124] L108-->mainErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {708#false} is VALID [2022-04-07 21:18:15,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-07 21:18:15,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 21:18:15,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [898833877] [2022-04-07 21:18:15,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [898833877] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 21:18:15,865 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 21:18:15,865 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 21:18:15,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688997444] [2022-04-07 21:18:15,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 21:18:15,866 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 21 [2022-04-07 21:18:15,866 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 21:18:15,866 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-04-07 21:18:15,877 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:15,878 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 21:18:15,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 21:18:15,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 21:18:15,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 21:18:15,878 INFO L87 Difference]: Start difference. First operand 67 states and 86 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-04-07 21:18:15,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:15,977 INFO L93 Difference]: Finished difference Result 89 states and 113 transitions. [2022-04-07 21:18:15,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 21:18:15,977 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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 21 [2022-04-07 21:18:15,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 21:18:15,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-04-07 21:18:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2022-04-07 21:18:15,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-04-07 21:18:15,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2022-04-07 21:18:15,981 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 61 transitions. [2022-04-07 21:18:16,031 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:16,034 INFO L225 Difference]: With dead ends: 89 [2022-04-07 21:18:16,034 INFO L226 Difference]: Without dead ends: 89 [2022-04-07 21:18:16,034 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 21:18:16,039 INFO L913 BasicCegarLoop]: 46 mSDtfsCounter, 51 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 21:18:16,040 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 53 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 21:18:16,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-04-07 21:18:16,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2022-04-07 21:18:16,052 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 21:18:16,052 INFO L82 GeneralOperation]: Start isEquivalent. First operand 89 states. Second operand has 87 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 83 states have internal predecessors, (109), 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) [2022-04-07 21:18:16,052 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand has 87 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 83 states have internal predecessors, (109), 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) [2022-04-07 21:18:16,052 INFO L87 Difference]: Start difference. First operand 89 states. Second operand has 87 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 83 states have internal predecessors, (109), 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) [2022-04-07 21:18:16,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:16,055 INFO L93 Difference]: Finished difference Result 89 states and 113 transitions. [2022-04-07 21:18:16,057 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2022-04-07 21:18:16,059 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:16,059 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:16,059 INFO L74 IsIncluded]: Start isIncluded. First operand has 87 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 83 states have internal predecessors, (109), 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) Second operand 89 states. [2022-04-07 21:18:16,060 INFO L87 Difference]: Start difference. First operand has 87 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 83 states have internal predecessors, (109), 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) Second operand 89 states. [2022-04-07 21:18:16,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:16,062 INFO L93 Difference]: Finished difference Result 89 states and 113 transitions. [2022-04-07 21:18:16,062 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 113 transitions. [2022-04-07 21:18:16,062 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:16,062 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:16,062 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 21:18:16,062 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 21:18:16,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 83 states have internal predecessors, (109), 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) [2022-04-07 21:18:16,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2022-04-07 21:18:16,064 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 21 [2022-04-07 21:18:16,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 21:18:16,064 INFO L478 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2022-04-07 21:18:16,064 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 3 states have internal predecessors, (16), 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) [2022-04-07 21:18:16,065 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2022-04-07 21:18:16,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-07 21:18:16,065 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 21:18:16,065 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 21:18:16,065 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-04-07 21:18:16,065 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 21:18:16,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 21:18:16,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1498444954, now seen corresponding path program 1 times [2022-04-07 21:18:16,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 21:18:16,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836339336] [2022-04-07 21:18:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 21:18:16,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 21:18:16,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:16,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 21:18:16,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:16,097 INFO L290 TraceCheckUtils]: 0: Hoare triple {1079#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {1073#true} is VALID [2022-04-07 21:18:16,097 INFO L290 TraceCheckUtils]: 1: Hoare triple {1073#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,098 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1073#true} {1073#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,098 INFO L272 TraceCheckUtils]: 0: Hoare triple {1073#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1079#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 21:18:16,098 INFO L290 TraceCheckUtils]: 1: Hoare triple {1079#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {1073#true} is VALID [2022-04-07 21:18:16,099 INFO L290 TraceCheckUtils]: 2: Hoare triple {1073#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,099 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1073#true} {1073#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,099 INFO L272 TraceCheckUtils]: 4: Hoare triple {1073#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,099 INFO L290 TraceCheckUtils]: 5: Hoare triple {1073#true} [115] mainENTRY-->L111: Formula: (and (= v_main_~s__state~0_1 8466) (= |v_main_#t~nondet4_2| v_main_~s__hit~0_1) (= v_main_~blastFlag~0_1 0) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~tmp___1~0=v_main_~tmp___1~0_1, main_~s__state~0=v_main_~s__state~0_1, main_~s__hit~0=v_main_~s__hit~0_1, main_~blastFlag~0=v_main_~blastFlag~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~tmp___1~0, main_~blastFlag~0, main_~s__state~0, main_~s__hit~0] {1073#true} is VALID [2022-04-07 21:18:16,099 INFO L290 TraceCheckUtils]: 6: Hoare triple {1073#true} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,099 INFO L290 TraceCheckUtils]: 7: Hoare triple {1073#true} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,099 INFO L290 TraceCheckUtils]: 8: Hoare triple {1073#true} [126] L36-->L37: Formula: (= v_main_~s__state~0_7 8466) InVars {main_~s__state~0=v_main_~s__state~0_7} OutVars{main_~s__state~0=v_main_~s__state~0_7} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,100 INFO L290 TraceCheckUtils]: 9: Hoare triple {1073#true} [128] L37-->L69-1: Formula: (and (= 2 v_main_~blastFlag~0_13) (= v_main_~blastFlag~0_14 0)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_14} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_13} AuxVars[] AssignedVars[main_~blastFlag~0] {1073#true} is VALID [2022-04-07 21:18:16,100 INFO L290 TraceCheckUtils]: 10: Hoare triple {1073#true} [132] L69-1-->L111: Formula: (and (not (= v_main_~s__hit~0_6 0)) (= v_main_~s__state~0_16 8656)) InVars {main_~s__hit~0=v_main_~s__hit~0_6} OutVars{main_~s__state~0=v_main_~s__state~0_16, main_~s__hit~0=v_main_~s__hit~0_6} AuxVars[] AssignedVars[main_~s__state~0] {1073#true} is VALID [2022-04-07 21:18:16,100 INFO L290 TraceCheckUtils]: 11: Hoare triple {1073#true} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,100 INFO L290 TraceCheckUtils]: 12: Hoare triple {1073#true} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,100 INFO L290 TraceCheckUtils]: 13: Hoare triple {1073#true} [127] L36-->L41: Formula: (not (= v_main_~s__state~0_8 8466)) InVars {main_~s__state~0=v_main_~s__state~0_8} OutVars{main_~s__state~0=v_main_~s__state~0_8} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,100 INFO L290 TraceCheckUtils]: 14: Hoare triple {1073#true} [131] L41-->L57: Formula: (not (= v_main_~s__state~0_10 8512)) InVars {main_~s__state~0=v_main_~s__state~0_10} OutVars{main_~s__state~0=v_main_~s__state~0_10} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,100 INFO L290 TraceCheckUtils]: 15: Hoare triple {1073#true} [136] L57-->L61: Formula: (not (= v_main_~s__state~0_13 8640)) InVars {main_~s__state~0=v_main_~s__state~0_13} OutVars{main_~s__state~0=v_main_~s__state~0_13} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,100 INFO L290 TraceCheckUtils]: 16: Hoare triple {1073#true} [141] L61-->L62: Formula: (= v_main_~s__state~0_14 8656) InVars {main_~s__state~0=v_main_~s__state~0_14} OutVars{main_~s__state~0=v_main_~s__state~0_14} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,101 INFO L290 TraceCheckUtils]: 17: Hoare triple {1073#true} [145] L62-->L100-1: Formula: (and (= v_main_~blastFlag~0_4 2) (= v_main_~blastFlag~0_3 3)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_4} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_3} AuxVars[] AssignedVars[main_~blastFlag~0] {1073#true} is VALID [2022-04-07 21:18:16,101 INFO L290 TraceCheckUtils]: 18: Hoare triple {1073#true} [148] L100-1-->L107: Formula: (not (= v_main_~blastFlag~0_10 4)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_10} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_10} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,101 INFO L290 TraceCheckUtils]: 19: Hoare triple {1073#true} [152] L107-->L104-1: Formula: (not (= 5 v_main_~blastFlag~0_12)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_12} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_12} AuxVars[] AssignedVars[] {1073#true} is VALID [2022-04-07 21:18:16,101 INFO L290 TraceCheckUtils]: 20: Hoare triple {1073#true} [149] L104-1-->L111: Formula: (and (= v_main_~s__state~0_11 8640) (not (= v_main_~s__hit~0_4 0))) InVars {main_~s__hit~0=v_main_~s__hit~0_4} OutVars{main_~s__state~0=v_main_~s__state~0_11, main_~s__hit~0=v_main_~s__hit~0_4} AuxVars[] AssignedVars[main_~s__state~0] {1078#(<= 8640 main_~s__state~0)} is VALID [2022-04-07 21:18:16,102 INFO L290 TraceCheckUtils]: 21: Hoare triple {1078#(<= 8640 main_~s__state~0)} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1078#(<= 8640 main_~s__state~0)} is VALID [2022-04-07 21:18:16,102 INFO L290 TraceCheckUtils]: 22: Hoare triple {1078#(<= 8640 main_~s__state~0)} [121] L30-->L108: Formula: (and (< 2 v_main_~blastFlag~0_6) (<= v_main_~s__state~0_5 8512)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_6, main_~s__state~0=v_main_~s__state~0_5} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_6, main_~s__state~0=v_main_~s__state~0_5} AuxVars[] AssignedVars[] {1074#false} is VALID [2022-04-07 21:18:16,102 INFO L290 TraceCheckUtils]: 23: Hoare triple {1074#false} [124] L108-->mainErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1074#false} is VALID [2022-04-07 21:18:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-04-07 21:18:16,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 21:18:16,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836339336] [2022-04-07 21:18:16,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836339336] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 21:18:16,103 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 21:18:16,103 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 21:18:16,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358961599] [2022-04-07 21:18:16,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 21:18:16,103 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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 24 [2022-04-07 21:18:16,104 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 21:18:16,104 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-04-07 21:18:16,117 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:16,117 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 21:18:16,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 21:18:16,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 21:18:16,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 21:18:16,118 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-04-07 21:18:16,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:16,177 INFO L93 Difference]: Finished difference Result 86 states and 102 transitions. [2022-04-07 21:18:16,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 21:18:16,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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 24 [2022-04-07 21:18:16,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 21:18:16,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-04-07 21:18:16,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2022-04-07 21:18:16,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-04-07 21:18:16,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 43 transitions. [2022-04-07 21:18:16,180 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 43 transitions. [2022-04-07 21:18:16,209 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:16,210 INFO L225 Difference]: With dead ends: 86 [2022-04-07 21:18:16,210 INFO L226 Difference]: Without dead ends: 67 [2022-04-07 21:18:16,210 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 21:18:16,211 INFO L913 BasicCegarLoop]: 34 mSDtfsCounter, 41 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 21:18:16,211 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [41 Valid, 41 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 21:18:16,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-04-07 21:18:16,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 65. [2022-04-07 21:18:16,213 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 21:18:16,213 INFO L82 GeneralOperation]: Start isEquivalent. First operand 67 states. Second operand has 65 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 61 states have internal predecessors, (73), 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) [2022-04-07 21:18:16,213 INFO L74 IsIncluded]: Start isIncluded. First operand 67 states. Second operand has 65 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 61 states have internal predecessors, (73), 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) [2022-04-07 21:18:16,214 INFO L87 Difference]: Start difference. First operand 67 states. Second operand has 65 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 61 states have internal predecessors, (73), 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) [2022-04-07 21:18:16,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:16,215 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2022-04-07 21:18:16,215 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2022-04-07 21:18:16,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:16,215 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:16,215 INFO L74 IsIncluded]: Start isIncluded. First operand has 65 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 61 states have internal predecessors, (73), 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) Second operand 67 states. [2022-04-07 21:18:16,216 INFO L87 Difference]: Start difference. First operand has 65 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 61 states have internal predecessors, (73), 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) Second operand 67 states. [2022-04-07 21:18:16,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:16,217 INFO L93 Difference]: Finished difference Result 67 states and 79 transitions. [2022-04-07 21:18:16,217 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 79 transitions. [2022-04-07 21:18:16,217 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:16,217 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:16,217 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 21:18:16,217 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 21:18:16,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 61 states have internal predecessors, (73), 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) [2022-04-07 21:18:16,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 76 transitions. [2022-04-07 21:18:16,219 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 76 transitions. Word has length 24 [2022-04-07 21:18:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 21:18:16,219 INFO L478 AbstractCegarLoop]: Abstraction has 65 states and 76 transitions. [2022-04-07 21:18:16,219 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-04-07 21:18:16,219 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 76 transitions. [2022-04-07 21:18:16,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-04-07 21:18:16,220 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 21:18:16,220 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 21:18:16,220 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-07 21:18:16,220 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 21:18:16,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 21:18:16,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1101537560, now seen corresponding path program 1 times [2022-04-07 21:18:16,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 21:18:16,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646788384] [2022-04-07 21:18:16,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 21:18:16,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 21:18:16,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:16,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 21:18:16,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 21:18:16,253 INFO L290 TraceCheckUtils]: 0: Hoare triple {1376#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {1370#true} is VALID [2022-04-07 21:18:16,253 INFO L290 TraceCheckUtils]: 1: Hoare triple {1370#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1370#true} is VALID [2022-04-07 21:18:16,253 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1370#true} {1370#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1370#true} is VALID [2022-04-07 21:18:16,254 INFO L272 TraceCheckUtils]: 0: Hoare triple {1370#true} [111] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1376#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 21:18:16,254 INFO L290 TraceCheckUtils]: 1: Hoare triple {1376#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [113] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= (select |v_#length_1| 2) 17) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {1370#true} is VALID [2022-04-07 21:18:16,254 INFO L290 TraceCheckUtils]: 2: Hoare triple {1370#true} [116] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1370#true} is VALID [2022-04-07 21:18:16,254 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1370#true} {1370#true} [153] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1370#true} is VALID [2022-04-07 21:18:16,254 INFO L272 TraceCheckUtils]: 4: Hoare triple {1370#true} [112] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1370#true} is VALID [2022-04-07 21:18:16,255 INFO L290 TraceCheckUtils]: 5: Hoare triple {1370#true} [115] mainENTRY-->L111: Formula: (and (= v_main_~s__state~0_1 8466) (= |v_main_#t~nondet4_2| v_main_~s__hit~0_1) (= v_main_~blastFlag~0_1 0) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~tmp___1~0=v_main_~tmp___1~0_1, main_~s__state~0=v_main_~s__state~0_1, main_~s__hit~0=v_main_~s__hit~0_1, main_~blastFlag~0=v_main_~blastFlag~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~tmp___1~0, main_~blastFlag~0, main_~s__state~0, main_~s__hit~0] {1370#true} is VALID [2022-04-07 21:18:16,255 INFO L290 TraceCheckUtils]: 6: Hoare triple {1370#true} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1370#true} is VALID [2022-04-07 21:18:16,255 INFO L290 TraceCheckUtils]: 7: Hoare triple {1370#true} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {1370#true} is VALID [2022-04-07 21:18:16,255 INFO L290 TraceCheckUtils]: 8: Hoare triple {1370#true} [126] L36-->L37: Formula: (= v_main_~s__state~0_7 8466) InVars {main_~s__state~0=v_main_~s__state~0_7} OutVars{main_~s__state~0=v_main_~s__state~0_7} AuxVars[] AssignedVars[] {1370#true} is VALID [2022-04-07 21:18:16,255 INFO L290 TraceCheckUtils]: 9: Hoare triple {1370#true} [128] L37-->L69-1: Formula: (and (= 2 v_main_~blastFlag~0_13) (= v_main_~blastFlag~0_14 0)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_14} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_13} AuxVars[] AssignedVars[main_~blastFlag~0] {1370#true} is VALID [2022-04-07 21:18:16,255 INFO L290 TraceCheckUtils]: 10: Hoare triple {1370#true} [132] L69-1-->L111: Formula: (and (not (= v_main_~s__hit~0_6 0)) (= v_main_~s__state~0_16 8656)) InVars {main_~s__hit~0=v_main_~s__hit~0_6} OutVars{main_~s__state~0=v_main_~s__state~0_16, main_~s__hit~0=v_main_~s__hit~0_6} AuxVars[] AssignedVars[main_~s__state~0] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,256 INFO L290 TraceCheckUtils]: 11: Hoare triple {1375#(not (= main_~s__hit~0 0))} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,256 INFO L290 TraceCheckUtils]: 12: Hoare triple {1375#(not (= main_~s__hit~0 0))} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,256 INFO L290 TraceCheckUtils]: 13: Hoare triple {1375#(not (= main_~s__hit~0 0))} [127] L36-->L41: Formula: (not (= v_main_~s__state~0_8 8466)) InVars {main_~s__state~0=v_main_~s__state~0_8} OutVars{main_~s__state~0=v_main_~s__state~0_8} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,257 INFO L290 TraceCheckUtils]: 14: Hoare triple {1375#(not (= main_~s__hit~0 0))} [131] L41-->L57: Formula: (not (= v_main_~s__state~0_10 8512)) InVars {main_~s__state~0=v_main_~s__state~0_10} OutVars{main_~s__state~0=v_main_~s__state~0_10} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,257 INFO L290 TraceCheckUtils]: 15: Hoare triple {1375#(not (= main_~s__hit~0 0))} [136] L57-->L61: Formula: (not (= v_main_~s__state~0_13 8640)) InVars {main_~s__state~0=v_main_~s__state~0_13} OutVars{main_~s__state~0=v_main_~s__state~0_13} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,257 INFO L290 TraceCheckUtils]: 16: Hoare triple {1375#(not (= main_~s__hit~0 0))} [141] L61-->L62: Formula: (= v_main_~s__state~0_14 8656) InVars {main_~s__state~0=v_main_~s__state~0_14} OutVars{main_~s__state~0=v_main_~s__state~0_14} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,258 INFO L290 TraceCheckUtils]: 17: Hoare triple {1375#(not (= main_~s__hit~0 0))} [145] L62-->L100-1: Formula: (and (= v_main_~blastFlag~0_4 2) (= v_main_~blastFlag~0_3 3)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_4} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_3} AuxVars[] AssignedVars[main_~blastFlag~0] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,258 INFO L290 TraceCheckUtils]: 18: Hoare triple {1375#(not (= main_~s__hit~0 0))} [148] L100-1-->L107: Formula: (not (= v_main_~blastFlag~0_10 4)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_10} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_10} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,258 INFO L290 TraceCheckUtils]: 19: Hoare triple {1375#(not (= main_~s__hit~0 0))} [152] L107-->L104-1: Formula: (not (= 5 v_main_~blastFlag~0_12)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_12} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_12} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,259 INFO L290 TraceCheckUtils]: 20: Hoare triple {1375#(not (= main_~s__hit~0 0))} [149] L104-1-->L111: Formula: (and (= v_main_~s__state~0_11 8640) (not (= v_main_~s__hit~0_4 0))) InVars {main_~s__hit~0=v_main_~s__hit~0_4} OutVars{main_~s__state~0=v_main_~s__state~0_11, main_~s__hit~0=v_main_~s__hit~0_4} AuxVars[] AssignedVars[main_~s__state~0] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,259 INFO L290 TraceCheckUtils]: 21: Hoare triple {1375#(not (= main_~s__hit~0 0))} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,259 INFO L290 TraceCheckUtils]: 22: Hoare triple {1375#(not (= main_~s__hit~0 0))} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,260 INFO L290 TraceCheckUtils]: 23: Hoare triple {1375#(not (= main_~s__hit~0 0))} [127] L36-->L41: Formula: (not (= v_main_~s__state~0_8 8466)) InVars {main_~s__state~0=v_main_~s__state~0_8} OutVars{main_~s__state~0=v_main_~s__state~0_8} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,260 INFO L290 TraceCheckUtils]: 24: Hoare triple {1375#(not (= main_~s__hit~0 0))} [131] L41-->L57: Formula: (not (= v_main_~s__state~0_10 8512)) InVars {main_~s__state~0=v_main_~s__state~0_10} OutVars{main_~s__state~0=v_main_~s__state~0_10} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,260 INFO L290 TraceCheckUtils]: 25: Hoare triple {1375#(not (= main_~s__hit~0 0))} [135] L57-->L58: Formula: (= v_main_~s__state~0_12 8640) InVars {main_~s__state~0=v_main_~s__state~0_12} OutVars{main_~s__state~0=v_main_~s__state~0_12} AuxVars[] AssignedVars[] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,261 INFO L290 TraceCheckUtils]: 26: Hoare triple {1375#(not (= main_~s__hit~0 0))} [139] L58-->L89-1: Formula: (and (= 3 v_main_~blastFlag~0_17) (= v_main_~blastFlag~0_16 4)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_17} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_16} AuxVars[] AssignedVars[main_~blastFlag~0] {1375#(not (= main_~s__hit~0 0))} is VALID [2022-04-07 21:18:16,261 INFO L290 TraceCheckUtils]: 27: Hoare triple {1375#(not (= main_~s__hit~0 0))} [144] L89-1-->L111: Formula: (and (= v_main_~s__hit~0_3 0) (= v_main_~s__state~0_4 8656)) InVars {main_~s__hit~0=v_main_~s__hit~0_3} OutVars{main_~s__state~0=v_main_~s__state~0_4, main_~s__hit~0=v_main_~s__hit~0_3} AuxVars[] AssignedVars[main_~s__state~0] {1371#false} is VALID [2022-04-07 21:18:16,261 INFO L290 TraceCheckUtils]: 28: Hoare triple {1371#false} [119] L111-->L30: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,261 INFO L290 TraceCheckUtils]: 29: Hoare triple {1371#false} [122] L30-->L36: Formula: (or (not (< 2 v_main_~blastFlag~0_9)) (not (<= v_main_~s__state~0_6 8512))) InVars {main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_9, main_~s__state~0=v_main_~s__state~0_6} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,261 INFO L290 TraceCheckUtils]: 30: Hoare triple {1371#false} [127] L36-->L41: Formula: (not (= v_main_~s__state~0_8 8466)) InVars {main_~s__state~0=v_main_~s__state~0_8} OutVars{main_~s__state~0=v_main_~s__state~0_8} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,261 INFO L290 TraceCheckUtils]: 31: Hoare triple {1371#false} [131] L41-->L57: Formula: (not (= v_main_~s__state~0_10 8512)) InVars {main_~s__state~0=v_main_~s__state~0_10} OutVars{main_~s__state~0=v_main_~s__state~0_10} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,262 INFO L290 TraceCheckUtils]: 32: Hoare triple {1371#false} [136] L57-->L61: Formula: (not (= v_main_~s__state~0_13 8640)) InVars {main_~s__state~0=v_main_~s__state~0_13} OutVars{main_~s__state~0=v_main_~s__state~0_13} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,262 INFO L290 TraceCheckUtils]: 33: Hoare triple {1371#false} [141] L61-->L62: Formula: (= v_main_~s__state~0_14 8656) InVars {main_~s__state~0=v_main_~s__state~0_14} OutVars{main_~s__state~0=v_main_~s__state~0_14} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,262 INFO L290 TraceCheckUtils]: 34: Hoare triple {1371#false} [146] L62-->L100-1: Formula: (not (= v_main_~blastFlag~0_5 2)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_5} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_5} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,262 INFO L290 TraceCheckUtils]: 35: Hoare triple {1371#false} [148] L100-1-->L107: Formula: (not (= v_main_~blastFlag~0_10 4)) InVars {main_~blastFlag~0=v_main_~blastFlag~0_10} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_10} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,262 INFO L290 TraceCheckUtils]: 36: Hoare triple {1371#false} [151] L107-->L108: Formula: (= 5 v_main_~blastFlag~0_11) InVars {main_~blastFlag~0=v_main_~blastFlag~0_11} OutVars{main_~blastFlag~0=v_main_~blastFlag~0_11} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,262 INFO L290 TraceCheckUtils]: 37: Hoare triple {1371#false} [124] L108-->mainErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1371#false} is VALID [2022-04-07 21:18:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-04-07 21:18:16,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 21:18:16,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646788384] [2022-04-07 21:18:16,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646788384] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 21:18:16,263 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 21:18:16,263 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-07 21:18:16,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400480462] [2022-04-07 21:18:16,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 21:18:16,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 38 [2022-04-07 21:18:16,263 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 21:18:16,264 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-04-07 21:18:16,282 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:16,282 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-07 21:18:16,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 21:18:16,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-07 21:18:16,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-07 21:18:16,283 INFO L87 Difference]: Start difference. First operand 65 states and 76 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-04-07 21:18:16,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:16,340 INFO L93 Difference]: Finished difference Result 57 states and 63 transitions. [2022-04-07 21:18:16,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 21:18:16,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 38 [2022-04-07 21:18:16,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 21:18:16,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-04-07 21:18:16,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2022-04-07 21:18:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-04-07 21:18:16,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 42 transitions. [2022-04-07 21:18:16,342 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 42 transitions. [2022-04-07 21:18:16,366 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 21:18:16,366 INFO L225 Difference]: With dead ends: 57 [2022-04-07 21:18:16,366 INFO L226 Difference]: Without dead ends: 0 [2022-04-07 21:18:16,366 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-07 21:18:16,367 INFO L913 BasicCegarLoop]: 33 mSDtfsCounter, 33 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 21:18:16,367 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 40 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 21:18:16,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-07 21:18:16,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-07 21:18:16,367 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 21:18:16,368 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second 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) [2022-04-07 21:18:16,368 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second 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) [2022-04-07 21:18:16,368 INFO L87 Difference]: Start difference. First operand 0 states. Second 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) [2022-04-07 21:18:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:16,368 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 21:18:16,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 21:18:16,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:16,368 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:16,368 INFO L74 IsIncluded]: Start isIncluded. First 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) Second operand 0 states. [2022-04-07 21:18:16,368 INFO L87 Difference]: Start difference. First 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) Second operand 0 states. [2022-04-07 21:18:16,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 21:18:16,368 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-07 21:18:16,368 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 21:18:16,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:16,369 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 21:18:16,369 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 21:18:16,369 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 21:18:16,369 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) [2022-04-07 21:18:16,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-07 21:18:16,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-04-07 21:18:16,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 21:18:16,369 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-07 21:18:16,369 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-04-07 21:18:16,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-07 21:18:16,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 21:18:16,371 INFO L788 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 21:18:16,371 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-04-07 21:18:16,373 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-04-07 21:18:16,374 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 21:18:16,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 09:18:16 BasicIcfg [2022-04-07 21:18:16,376 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 21:18:16,376 INFO L158 Benchmark]: Toolchain (without parser) took 2369.88ms. Allocated memory was 200.3MB in the beginning and 264.2MB in the end (delta: 64.0MB). Free memory was 143.8MB in the beginning and 148.8MB in the end (delta: -5.1MB). Peak memory consumption was 58.0MB. Max. memory is 8.0GB. [2022-04-07 21:18:16,377 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 21:18:16,377 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.10ms. Allocated memory was 200.3MB in the beginning and 264.2MB in the end (delta: 64.0MB). Free memory was 143.5MB in the beginning and 235.2MB in the end (delta: -91.7MB). Peak memory consumption was 13.1MB. Max. memory is 8.0GB. [2022-04-07 21:18:16,377 INFO L158 Benchmark]: Boogie Preprocessor took 36.71ms. Allocated memory is still 264.2MB. Free memory was 235.2MB in the beginning and 233.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-07 21:18:16,377 INFO L158 Benchmark]: RCFGBuilder took 271.30ms. Allocated memory is still 264.2MB. Free memory was 233.6MB in the beginning and 221.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-07 21:18:16,377 INFO L158 Benchmark]: IcfgTransformer took 33.61ms. Allocated memory is still 264.2MB. Free memory was 221.1MB in the beginning and 219.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-07 21:18:16,377 INFO L158 Benchmark]: TraceAbstraction took 1822.30ms. Allocated memory is still 264.2MB. Free memory was 219.0MB in the beginning and 148.8MB in the end (delta: 70.1MB). Peak memory consumption was 70.6MB. Max. memory is 8.0GB. [2022-04-07 21:18:16,378 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 200.3MB. Free memory is still 159.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 200.10ms. Allocated memory was 200.3MB in the beginning and 264.2MB in the end (delta: 64.0MB). Free memory was 143.5MB in the beginning and 235.2MB in the end (delta: -91.7MB). Peak memory consumption was 13.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.71ms. Allocated memory is still 264.2MB. Free memory was 235.2MB in the beginning and 233.6MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 271.30ms. Allocated memory is still 264.2MB. Free memory was 233.6MB in the beginning and 221.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * IcfgTransformer took 33.61ms. Allocated memory is still 264.2MB. Free memory was 221.1MB in the beginning and 219.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1822.30ms. Allocated memory is still 264.2MB. Free memory was 219.0MB in the beginning and 148.8MB in the end (delta: 70.1MB). Peak memory consumption was 70.6MB. 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: 150]: 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 3 procedures, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 291 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 291 mSDsluCounter, 272 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 44 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 180 IncrementalHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 228 mSDtfsCounter, 180 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=4, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 229 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 42/42 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-07 21:18:16,402 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...