/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/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/loop-acceleration/underapprox_2-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-34549b5 [2022-04-07 22:21:19,763 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-07 22:21:19,765 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-07 22:21:19,811 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-07 22:21:19,811 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-07 22:21:19,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-07 22:21:19,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-07 22:21:19,821 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-07 22:21:19,822 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-07 22:21:19,826 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-07 22:21:19,827 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-07 22:21:19,828 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-07 22:21:19,828 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-07 22:21:19,830 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-07 22:21:19,830 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-07 22:21:19,831 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-07 22:21:19,832 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-07 22:21:19,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-07 22:21:19,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-07 22:21:19,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-07 22:21:19,836 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-07 22:21:19,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-07 22:21:19,837 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-07 22:21:19,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-07 22:21:19,838 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-07 22:21:19,840 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-07 22:21:19,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-07 22:21:19,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-07 22:21:19,850 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-07 22:21:19,851 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-07 22:21:19,872 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-07 22:21:19,873 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-07 22:21:19,873 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-07 22:21:19,873 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-07 22:21:19,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-07 22:21:19,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-07 22:21:19,874 INFO L138 SettingsManager]: * Use SBE=true [2022-04-07 22:21:19,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-07 22:21:19,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-07 22:21:19,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-07 22:21:19,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-07 22:21:19,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-07 22:21:19,876 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-07 22:21:19,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-07 22:21:19,876 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-07 22:21:19,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-07 22:21:19,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-07 22:21:19,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-07 22:21:19,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-07 22:21:19,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 22:21:19,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-07 22:21:19,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-07 22:21:19,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-07 22:21:19,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-07 22:21:19,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-07 22:21:19,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-07 22:21:19,878 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-07 22:21:19,878 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-07 22:21:19,879 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-07 22:21:19,879 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-07 22:21:20,116 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-07 22:21:20,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-07 22:21:20,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-07 22:21:20,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-07 22:21:20,138 INFO L275 PluginConnector]: CDTParser initialized [2022-04-07 22:21:20,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/underapprox_2-1.c [2022-04-07 22:21:20,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0741c85c/29de57d42901409787b9fde23aaa97f1/FLAGf6806e798 [2022-04-07 22:21:20,543 INFO L306 CDTParser]: Found 1 translation units. [2022-04-07 22:21:20,543 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_2-1.c [2022-04-07 22:21:20,548 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0741c85c/29de57d42901409787b9fde23aaa97f1/FLAGf6806e798 [2022-04-07 22:21:20,975 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0741c85c/29de57d42901409787b9fde23aaa97f1 [2022-04-07 22:21:20,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-07 22:21:20,978 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-07 22:21:20,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-07 22:21:20,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-07 22:21:20,985 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-07 22:21:20,986 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 10:21:20" (1/1) ... [2022-04-07 22:21:20,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fe5a5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:20, skipping insertion in model container [2022-04-07 22:21:20,987 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.04 10:21:20" (1/1) ... [2022-04-07 22:21:20,993 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-07 22:21:21,003 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-07 22:21:21,163 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_2-1.c[327,340] [2022-04-07 22:21:21,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 22:21:21,204 INFO L203 MainTranslator]: Completed pre-run [2022-04-07 22:21:21,215 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/underapprox_2-1.c[327,340] [2022-04-07 22:21:21,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-07 22:21:21,236 INFO L208 MainTranslator]: Completed translation [2022-04-07 22:21:21,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21 WrapperNode [2022-04-07 22:21:21,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-07 22:21:21,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-07 22:21:21,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-07 22:21:21,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-07 22:21:21,248 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21" (1/1) ... [2022-04-07 22:21:21,248 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21" (1/1) ... [2022-04-07 22:21:21,253 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21" (1/1) ... [2022-04-07 22:21:21,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21" (1/1) ... [2022-04-07 22:21:21,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21" (1/1) ... [2022-04-07 22:21:21,262 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21" (1/1) ... [2022-04-07 22:21:21,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21" (1/1) ... [2022-04-07 22:21:21,267 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-07 22:21:21,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-07 22:21:21,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-07 22:21:21,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-07 22:21:21,270 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21" (1/1) ... [2022-04-07 22:21:21,276 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-07 22:21:21,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 22:21:21,296 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 22:21:21,320 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 22:21:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-07 22:21:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-07 22:21:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-07 22:21:21,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-07 22:21:21,337 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-07 22:21:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-07 22:21:21,337 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-07 22:21:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-07 22:21:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-07 22:21:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-07 22:21:21,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-07 22:21:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-07 22:21:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-07 22:21:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-07 22:21:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-07 22:21:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-07 22:21:21,339 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-07 22:21:21,396 INFO L234 CfgBuilder]: Building ICFG [2022-04-07 22:21:21,397 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-07 22:21:21,523 INFO L275 CfgBuilder]: Performing block encoding [2022-04-07 22:21:21,528 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-07 22:21:21,528 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-07 22:21:21,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 10:21:21 BoogieIcfgContainer [2022-04-07 22:21:21,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-07 22:21:21,531 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-07 22:21:21,531 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-07 22:21:21,543 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-07 22:21:21,547 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 10:21:21" (1/1) ... [2022-04-07 22:21:21,548 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-07 22:21:21,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 10:21:21 BasicIcfg [2022-04-07 22:21:21,575 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-07 22:21:21,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-07 22:21:21,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-07 22:21:21,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-07 22:21:21,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.04 10:21:20" (1/4) ... [2022-04-07 22:21:21,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66abaafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 10:21:21, skipping insertion in model container [2022-04-07 22:21:21,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.04 10:21:21" (2/4) ... [2022-04-07 22:21:21,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66abaafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.04 10:21:21, skipping insertion in model container [2022-04-07 22:21:21,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.04 10:21:21" (3/4) ... [2022-04-07 22:21:21,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66abaafc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 10:21:21, skipping insertion in model container [2022-04-07 22:21:21,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 07.04 10:21:21" (4/4) ... [2022-04-07 22:21:21,581 INFO L111 eAbstractionObserver]: Analyzing ICFG underapprox_2-1.cqvasr [2022-04-07 22:21:21,585 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-07 22:21:21,585 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-07 22:21:21,617 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-07 22:21:21,622 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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 22:21:21,622 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-07 22:21:21,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-04-07 22:21:21,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-07 22:21:21,642 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 22:21:21,643 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 22:21:21,643 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 22:21:21,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 22:21:21,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1690616289, now seen corresponding path program 1 times [2022-04-07 22:21:21,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 22:21:21,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042640201] [2022-04-07 22:21:21,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 22:21:21,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 22:21:21,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 22:21:21,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:21,838 INFO L290 TraceCheckUtils]: 0: Hoare triple {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {21#true} is VALID [2022-04-07 22:21:21,839 INFO L290 TraceCheckUtils]: 1: Hoare triple {21#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 22:21:21,839 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {21#true} {21#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 22:21:21,841 INFO L272 TraceCheckUtils]: 0: Hoare triple {21#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 22:21:21,842 INFO L290 TraceCheckUtils]: 1: Hoare triple {26#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {21#true} is VALID [2022-04-07 22:21:21,843 INFO L290 TraceCheckUtils]: 2: Hoare triple {21#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 22:21:21,843 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {21#true} {21#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 22:21:21,843 INFO L272 TraceCheckUtils]: 4: Hoare triple {21#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {21#true} is VALID [2022-04-07 22:21:21,844 INFO L290 TraceCheckUtils]: 5: Hoare triple {21#true} [43] mainENTRY-->L16-2: Formula: (and (= v_main_~x~0_4 0) (= v_main_~y~0_3 1)) InVars {} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_3} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {21#true} is VALID [2022-04-07 22:21:21,844 INFO L290 TraceCheckUtils]: 6: Hoare triple {21#true} [45] L16-2-->L16-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {22#false} is VALID [2022-04-07 22:21:21,845 INFO L272 TraceCheckUtils]: 7: Hoare triple {22#false} [48] L16-3-->__VERIFIER_assertENTRY: Formula: (= (ite (not (= 6 (mod v_main_~x~0_6 4294967296))) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {22#false} is VALID [2022-04-07 22:21:21,845 INFO L290 TraceCheckUtils]: 8: Hoare triple {22#false} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {22#false} is VALID [2022-04-07 22:21:21,845 INFO L290 TraceCheckUtils]: 9: Hoare triple {22#false} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {22#false} is VALID [2022-04-07 22:21:21,845 INFO L290 TraceCheckUtils]: 10: Hoare triple {22#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#false} is VALID [2022-04-07 22:21:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 22:21:21,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 22:21:21,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042640201] [2022-04-07 22:21:21,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042640201] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 22:21:21,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 22:21:21,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-07 22:21:21,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935081111] [2022-04-07 22:21:21,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 22:21:21,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-07 22:21:21,858 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 22:21:21,861 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:21,881 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 22:21:21,882 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-07 22:21:21,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 22:21:21,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-07 22:21:21,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 22:21:21,909 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 11 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:21,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:21,989 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2022-04-07 22:21:21,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-07 22:21:21,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-07 22:21:21,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 22:21:21,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:21,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-04-07 22:21:22,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 32 transitions. [2022-04-07 22:21:22,005 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 32 transitions. [2022-04-07 22:21:22,068 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 22:21:22,074 INFO L225 Difference]: With dead ends: 29 [2022-04-07 22:21:22,074 INFO L226 Difference]: Without dead ends: 12 [2022-04-07 22:21:22,076 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-07 22:21:22,079 INFO L913 BasicCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 22:21:22,080 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 20 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 22:21:22,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-04-07 22:21:22,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-04-07 22:21:22,120 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 22:21:22,121 INFO L82 GeneralOperation]: Start isEquivalent. First operand 12 states. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,122 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,123 INFO L87 Difference]: Start difference. First operand 12 states. Second operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:22,129 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-07 22:21:22,130 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-07 22:21:22,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 22:21:22,130 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 22:21:22,130 INFO L74 IsIncluded]: Start isIncluded. First operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 12 states. [2022-04-07 22:21:22,131 INFO L87 Difference]: Start difference. First operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 12 states. [2022-04-07 22:21:22,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:22,133 INFO L93 Difference]: Finished difference Result 12 states and 12 transitions. [2022-04-07 22:21:22,133 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-07 22:21:22,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 22:21:22,133 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 22:21:22,133 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 22:21:22,134 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 22:21:22,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-04-07 22:21:22,137 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 11 [2022-04-07 22:21:22,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 22:21:22,138 INFO L478 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-04-07 22:21:22,139 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,142 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-04-07 22:21:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-07 22:21:22,147 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 22:21:22,147 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 22:21:22,147 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-07 22:21:22,147 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 22:21:22,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 22:21:22,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1689692768, now seen corresponding path program 1 times [2022-04-07 22:21:22,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 22:21:22,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942618230] [2022-04-07 22:21:22,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 22:21:22,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 22:21:22,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:22,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 22:21:22,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:22,299 INFO L290 TraceCheckUtils]: 0: Hoare triple {118#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {110#true} is VALID [2022-04-07 22:21:22,300 INFO L290 TraceCheckUtils]: 1: Hoare triple {110#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-07 22:21:22,300 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {110#true} {110#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-07 22:21:22,301 INFO L272 TraceCheckUtils]: 0: Hoare triple {110#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {118#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 22:21:22,301 INFO L290 TraceCheckUtils]: 1: Hoare triple {118#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {110#true} is VALID [2022-04-07 22:21:22,301 INFO L290 TraceCheckUtils]: 2: Hoare triple {110#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-07 22:21:22,302 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {110#true} {110#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-07 22:21:22,302 INFO L272 TraceCheckUtils]: 4: Hoare triple {110#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {110#true} is VALID [2022-04-07 22:21:22,302 INFO L290 TraceCheckUtils]: 5: Hoare triple {110#true} [43] mainENTRY-->L16-2: Formula: (and (= v_main_~x~0_4 0) (= v_main_~y~0_3 1)) InVars {} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_3} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {115#(= main_~x~0 0)} is VALID [2022-04-07 22:21:22,303 INFO L290 TraceCheckUtils]: 6: Hoare triple {115#(= main_~x~0 0)} [46] L16-2-->L16-3: Formula: (not (< (mod v_main_~x~0_5 4294967296) 6)) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {111#false} is VALID [2022-04-07 22:21:22,303 INFO L272 TraceCheckUtils]: 7: Hoare triple {111#false} [48] L16-3-->__VERIFIER_assertENTRY: Formula: (= (ite (not (= 6 (mod v_main_~x~0_6 4294967296))) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {116#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 22:21:22,304 INFO L290 TraceCheckUtils]: 8: Hoare triple {116#(not (= |__VERIFIER_assert_#in~cond| 0))} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {117#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 22:21:22,304 INFO L290 TraceCheckUtils]: 9: Hoare triple {117#(not (= __VERIFIER_assert_~cond 0))} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {111#false} is VALID [2022-04-07 22:21:22,305 INFO L290 TraceCheckUtils]: 10: Hoare triple {111#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {111#false} is VALID [2022-04-07 22:21:22,305 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 22:21:22,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 22:21:22,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942618230] [2022-04-07 22:21:22,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942618230] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-07 22:21:22,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-07 22:21:22,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-07 22:21:22,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012871141] [2022-04-07 22:21:22,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-07 22:21:22,307 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-07 22:21:22,307 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 22:21:22,308 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,318 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 22:21:22,318 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-07 22:21:22,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 22:21:22,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-07 22:21:22,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-07 22:21:22,320 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:22,389 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2022-04-07 22:21:22,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-07 22:21:22,403 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-04-07 22:21:22,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 22:21:22,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-04-07 22:21:22,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 18 transitions. [2022-04-07 22:21:22,406 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 18 transitions. [2022-04-07 22:21:22,428 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 22:21:22,429 INFO L225 Difference]: With dead ends: 18 [2022-04-07 22:21:22,430 INFO L226 Difference]: Without dead ends: 13 [2022-04-07 22:21:22,430 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-07 22:21:22,431 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-07 22:21:22,432 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 28 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-07 22:21:22,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-07 22:21:22,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-07 22:21:22,435 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 22:21:22,435 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,435 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,435 INFO L87 Difference]: Start difference. First operand 13 states. Second operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:22,436 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 22:21:22,437 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 22:21:22,437 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 22:21:22,437 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 22:21:22,437 INFO L74 IsIncluded]: Start isIncluded. First operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 13 states. [2022-04-07 22:21:22,438 INFO L87 Difference]: Start difference. First operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 13 states. [2022-04-07 22:21:22,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:22,439 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-07 22:21:22,439 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 22:21:22,439 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 22:21:22,439 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 22:21:22,439 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 22:21:22,440 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 22:21:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-07 22:21:22,441 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-04-07 22:21:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 22:21:22,441 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-07 22:21:22,441 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.1666666666666667) internal successors, (7), 4 states have internal predecessors, (7), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-07 22:21:22,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-07 22:21:22,442 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 22:21:22,442 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 22:21:22,442 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-07 22:21:22,442 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 22:21:22,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 22:21:22,443 INFO L85 PathProgramCache]: Analyzing trace with hash -814146699, now seen corresponding path program 1 times [2022-04-07 22:21:22,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 22:21:22,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376772170] [2022-04-07 22:21:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 22:21:22,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 22:21:22,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:22,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 22:21:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:22,551 INFO L290 TraceCheckUtils]: 0: Hoare triple {207#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {198#true} is VALID [2022-04-07 22:21:22,551 INFO L290 TraceCheckUtils]: 1: Hoare triple {198#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,551 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {198#true} {198#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,552 INFO L272 TraceCheckUtils]: 0: Hoare triple {198#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {207#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 22:21:22,552 INFO L290 TraceCheckUtils]: 1: Hoare triple {207#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {198#true} is VALID [2022-04-07 22:21:22,552 INFO L290 TraceCheckUtils]: 2: Hoare triple {198#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,553 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {198#true} {198#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,553 INFO L272 TraceCheckUtils]: 4: Hoare triple {198#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,553 INFO L290 TraceCheckUtils]: 5: Hoare triple {198#true} [43] mainENTRY-->L16-2: Formula: (and (= v_main_~x~0_4 0) (= v_main_~y~0_3 1)) InVars {} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_3} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {203#(= main_~x~0 0)} is VALID [2022-04-07 22:21:22,554 INFO L290 TraceCheckUtils]: 6: Hoare triple {203#(= main_~x~0 0)} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {204#(and (<= main_~x~0 1) (not (<= (+ (div main_~x~0 4294967296) 1) 0)))} is VALID [2022-04-07 22:21:22,555 INFO L290 TraceCheckUtils]: 7: Hoare triple {204#(and (<= main_~x~0 1) (not (<= (+ (div main_~x~0 4294967296) 1) 0)))} [46] L16-2-->L16-3: Formula: (not (< (mod v_main_~x~0_5 4294967296) 6)) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {199#false} is VALID [2022-04-07 22:21:22,555 INFO L272 TraceCheckUtils]: 8: Hoare triple {199#false} [48] L16-3-->__VERIFIER_assertENTRY: Formula: (= (ite (not (= 6 (mod v_main_~x~0_6 4294967296))) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {205#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 22:21:22,556 INFO L290 TraceCheckUtils]: 9: Hoare triple {205#(not (= |__VERIFIER_assert_#in~cond| 0))} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {206#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 22:21:22,556 INFO L290 TraceCheckUtils]: 10: Hoare triple {206#(not (= __VERIFIER_assert_~cond 0))} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {199#false} is VALID [2022-04-07 22:21:22,556 INFO L290 TraceCheckUtils]: 11: Hoare triple {199#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {199#false} is VALID [2022-04-07 22:21:22,557 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 22:21:22,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 22:21:22,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376772170] [2022-04-07 22:21:22,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376772170] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 22:21:22,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360289240] [2022-04-07 22:21:22,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 22:21:22,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 22:21:22,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 22:21:22,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 22:21:22,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-07 22:21:22,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:22,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-07 22:21:22,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:22,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 22:21:22,738 INFO L272 TraceCheckUtils]: 0: Hoare triple {198#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,738 INFO L290 TraceCheckUtils]: 1: Hoare triple {198#true} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {198#true} is VALID [2022-04-07 22:21:22,738 INFO L290 TraceCheckUtils]: 2: Hoare triple {198#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,739 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {198#true} {198#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,739 INFO L272 TraceCheckUtils]: 4: Hoare triple {198#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,739 INFO L290 TraceCheckUtils]: 5: Hoare triple {198#true} [43] mainENTRY-->L16-2: Formula: (and (= v_main_~x~0_4 0) (= v_main_~y~0_3 1)) InVars {} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_3} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {203#(= main_~x~0 0)} is VALID [2022-04-07 22:21:22,740 INFO L290 TraceCheckUtils]: 6: Hoare triple {203#(= main_~x~0 0)} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {229#(= main_~x~0 1)} is VALID [2022-04-07 22:21:22,741 INFO L290 TraceCheckUtils]: 7: Hoare triple {229#(= main_~x~0 1)} [46] L16-2-->L16-3: Formula: (not (< (mod v_main_~x~0_5 4294967296) 6)) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {199#false} is VALID [2022-04-07 22:21:22,741 INFO L272 TraceCheckUtils]: 8: Hoare triple {199#false} [48] L16-3-->__VERIFIER_assertENTRY: Formula: (= (ite (not (= 6 (mod v_main_~x~0_6 4294967296))) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {199#false} is VALID [2022-04-07 22:21:22,741 INFO L290 TraceCheckUtils]: 9: Hoare triple {199#false} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {199#false} is VALID [2022-04-07 22:21:22,741 INFO L290 TraceCheckUtils]: 10: Hoare triple {199#false} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {199#false} is VALID [2022-04-07 22:21:22,742 INFO L290 TraceCheckUtils]: 11: Hoare triple {199#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {199#false} is VALID [2022-04-07 22:21:22,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 22:21:22,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 22:21:22,915 INFO L290 TraceCheckUtils]: 11: Hoare triple {199#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {199#false} is VALID [2022-04-07 22:21:22,916 INFO L290 TraceCheckUtils]: 10: Hoare triple {248#(not (<= __VERIFIER_assert_~cond 0))} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {199#false} is VALID [2022-04-07 22:21:22,918 INFO L290 TraceCheckUtils]: 9: Hoare triple {252#(< 0 |__VERIFIER_assert_#in~cond|)} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {248#(not (<= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 22:21:22,919 INFO L272 TraceCheckUtils]: 8: Hoare triple {256#(not (= (mod main_~x~0 4294967296) 6))} [48] L16-3-->__VERIFIER_assertENTRY: Formula: (= (ite (not (= 6 (mod v_main_~x~0_6 4294967296))) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {252#(< 0 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 22:21:22,920 INFO L290 TraceCheckUtils]: 7: Hoare triple {256#(not (= (mod main_~x~0 4294967296) 6))} [46] L16-2-->L16-3: Formula: (not (< (mod v_main_~x~0_5 4294967296) 6)) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {256#(not (= (mod main_~x~0 4294967296) 6))} is VALID [2022-04-07 22:21:22,921 INFO L290 TraceCheckUtils]: 6: Hoare triple {263#(not (= 6 (mod (+ main_~x~0 1) 4294967296)))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {256#(not (= (mod main_~x~0 4294967296) 6))} is VALID [2022-04-07 22:21:22,921 INFO L290 TraceCheckUtils]: 5: Hoare triple {198#true} [43] mainENTRY-->L16-2: Formula: (and (= v_main_~x~0_4 0) (= v_main_~y~0_3 1)) InVars {} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_3} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {263#(not (= 6 (mod (+ main_~x~0 1) 4294967296)))} is VALID [2022-04-07 22:21:22,922 INFO L272 TraceCheckUtils]: 4: Hoare triple {198#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,922 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {198#true} {198#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,922 INFO L290 TraceCheckUtils]: 2: Hoare triple {198#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,922 INFO L290 TraceCheckUtils]: 1: Hoare triple {198#true} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {198#true} is VALID [2022-04-07 22:21:22,923 INFO L272 TraceCheckUtils]: 0: Hoare triple {198#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {198#true} is VALID [2022-04-07 22:21:22,923 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 22:21:22,923 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360289240] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-07 22:21:22,924 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-07 22:21:22,924 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 6] total 12 [2022-04-07 22:21:22,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177024463] [2022-04-07 22:21:22,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-07 22:21:22,929 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-07 22:21:22,930 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 22:21:22,931 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:22,958 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 22:21:22,959 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-07 22:21:22,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 22:21:22,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-07 22:21:22,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-04-07 22:21:22,960 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:23,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:23,201 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-04-07 22:21:23,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-04-07 22:21:23,201 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-07 22:21:23,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 22:21:23,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:23,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 26 transitions. [2022-04-07 22:21:23,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:23,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 26 transitions. [2022-04-07 22:21:23,215 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 10 states and 26 transitions. [2022-04-07 22:21:23,242 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 22:21:23,243 INFO L225 Difference]: With dead ends: 24 [2022-04-07 22:21:23,243 INFO L226 Difference]: Without dead ends: 16 [2022-04-07 22:21:23,244 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2022-04-07 22:21:23,246 INFO L913 BasicCegarLoop]: 9 mSDtfsCounter, 12 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-07 22:21:23,248 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 41 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-07 22:21:23,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-04-07 22:21:23,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-04-07 22:21:23,252 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 22:21:23,253 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:23,253 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:23,254 INFO L87 Difference]: Start difference. First operand 16 states. Second operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:23,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:23,255 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-04-07 22:21:23,255 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-04-07 22:21:23,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 22:21:23,255 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 22:21:23,256 INFO L74 IsIncluded]: Start isIncluded. First operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 16 states. [2022-04-07 22:21:23,257 INFO L87 Difference]: Start difference. First operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 16 states. [2022-04-07 22:21:23,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:23,258 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-04-07 22:21:23,259 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-04-07 22:21:23,259 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 22:21:23,259 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 22:21:23,259 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 22:21:23,259 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 22:21:23,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:23,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-04-07 22:21:23,261 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2022-04-07 22:21:23,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 22:21:23,261 INFO L478 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-04-07 22:21:23,262 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.5) internal successors, (18), 9 states have internal predecessors, (18), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:23,262 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-04-07 22:21:23,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-04-07 22:21:23,262 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 22:21:23,263 INFO L499 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 22:21:23,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-07 22:21:23,477 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 22:21:23,477 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 22:21:23,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 22:21:23,478 INFO L85 PathProgramCache]: Analyzing trace with hash 200712928, now seen corresponding path program 2 times [2022-04-07 22:21:23,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 22:21:23,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026268813] [2022-04-07 22:21:23,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 22:21:23,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 22:21:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:23,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-07 22:21:23,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:23,620 INFO L290 TraceCheckUtils]: 0: Hoare triple {408#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {396#true} is VALID [2022-04-07 22:21:23,620 INFO L290 TraceCheckUtils]: 1: Hoare triple {396#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:23,620 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {396#true} {396#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:23,621 INFO L272 TraceCheckUtils]: 0: Hoare triple {396#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {408#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-07 22:21:23,621 INFO L290 TraceCheckUtils]: 1: Hoare triple {408#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {396#true} is VALID [2022-04-07 22:21:23,622 INFO L290 TraceCheckUtils]: 2: Hoare triple {396#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:23,622 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {396#true} {396#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:23,622 INFO L272 TraceCheckUtils]: 4: Hoare triple {396#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:23,622 INFO L290 TraceCheckUtils]: 5: Hoare triple {396#true} [43] mainENTRY-->L16-2: Formula: (and (= v_main_~x~0_4 0) (= v_main_~y~0_3 1)) InVars {} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_3} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {401#(= main_~x~0 0)} is VALID [2022-04-07 22:21:23,623 INFO L290 TraceCheckUtils]: 6: Hoare triple {401#(= main_~x~0 0)} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {402#(and (<= 1 main_~x~0) (<= main_~x~0 1))} is VALID [2022-04-07 22:21:23,624 INFO L290 TraceCheckUtils]: 7: Hoare triple {402#(and (<= 1 main_~x~0) (<= main_~x~0 1))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {403#(and (<= 2 main_~x~0) (<= main_~x~0 2))} is VALID [2022-04-07 22:21:23,625 INFO L290 TraceCheckUtils]: 8: Hoare triple {403#(and (<= 2 main_~x~0) (<= main_~x~0 2))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {404#(and (<= main_~x~0 3) (<= 3 main_~x~0))} is VALID [2022-04-07 22:21:23,625 INFO L290 TraceCheckUtils]: 9: Hoare triple {404#(and (<= main_~x~0 3) (<= 3 main_~x~0))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {405#(and (<= main_~x~0 4) (not (<= (+ (div main_~x~0 4294967296) 1) 0)))} is VALID [2022-04-07 22:21:23,626 INFO L290 TraceCheckUtils]: 10: Hoare triple {405#(and (<= main_~x~0 4) (not (<= (+ (div main_~x~0 4294967296) 1) 0)))} [46] L16-2-->L16-3: Formula: (not (< (mod v_main_~x~0_5 4294967296) 6)) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {397#false} is VALID [2022-04-07 22:21:23,626 INFO L272 TraceCheckUtils]: 11: Hoare triple {397#false} [48] L16-3-->__VERIFIER_assertENTRY: Formula: (= (ite (not (= 6 (mod v_main_~x~0_6 4294967296))) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {406#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-07 22:21:23,627 INFO L290 TraceCheckUtils]: 12: Hoare triple {406#(not (= |__VERIFIER_assert_#in~cond| 0))} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {407#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 22:21:23,627 INFO L290 TraceCheckUtils]: 13: Hoare triple {407#(not (= __VERIFIER_assert_~cond 0))} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {397#false} is VALID [2022-04-07 22:21:23,628 INFO L290 TraceCheckUtils]: 14: Hoare triple {397#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#false} is VALID [2022-04-07 22:21:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 22:21:23,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-07 22:21:23,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026268813] [2022-04-07 22:21:23,628 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026268813] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-07 22:21:23,628 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387637089] [2022-04-07 22:21:23,628 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-07 22:21:23,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-07 22:21:23,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-07 22:21:23,630 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-07 22:21:23,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-07 22:21:23,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-07 22:21:23,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-07 22:21:23,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 14 conjunts are in the unsatisfiable core [2022-04-07 22:21:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-07 22:21:23,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-07 22:21:23,788 INFO L272 TraceCheckUtils]: 0: Hoare triple {396#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:23,789 INFO L290 TraceCheckUtils]: 1: Hoare triple {396#true} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {396#true} is VALID [2022-04-07 22:21:23,789 INFO L290 TraceCheckUtils]: 2: Hoare triple {396#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:23,789 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {396#true} {396#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:23,789 INFO L272 TraceCheckUtils]: 4: Hoare triple {396#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:23,790 INFO L290 TraceCheckUtils]: 5: Hoare triple {396#true} [43] mainENTRY-->L16-2: Formula: (and (= v_main_~x~0_4 0) (= v_main_~y~0_3 1)) InVars {} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_3} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {401#(= main_~x~0 0)} is VALID [2022-04-07 22:21:23,790 INFO L290 TraceCheckUtils]: 6: Hoare triple {401#(= main_~x~0 0)} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {402#(and (<= 1 main_~x~0) (<= main_~x~0 1))} is VALID [2022-04-07 22:21:23,791 INFO L290 TraceCheckUtils]: 7: Hoare triple {402#(and (<= 1 main_~x~0) (<= main_~x~0 1))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {403#(and (<= 2 main_~x~0) (<= main_~x~0 2))} is VALID [2022-04-07 22:21:23,792 INFO L290 TraceCheckUtils]: 8: Hoare triple {403#(and (<= 2 main_~x~0) (<= main_~x~0 2))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {404#(and (<= main_~x~0 3) (<= 3 main_~x~0))} is VALID [2022-04-07 22:21:23,793 INFO L290 TraceCheckUtils]: 9: Hoare triple {404#(and (<= main_~x~0 3) (<= 3 main_~x~0))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {439#(and (<= main_~x~0 4) (<= 4 main_~x~0))} is VALID [2022-04-07 22:21:23,793 INFO L290 TraceCheckUtils]: 10: Hoare triple {439#(and (<= main_~x~0 4) (<= 4 main_~x~0))} [46] L16-2-->L16-3: Formula: (not (< (mod v_main_~x~0_5 4294967296) 6)) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {397#false} is VALID [2022-04-07 22:21:23,794 INFO L272 TraceCheckUtils]: 11: Hoare triple {397#false} [48] L16-3-->__VERIFIER_assertENTRY: Formula: (= (ite (not (= 6 (mod v_main_~x~0_6 4294967296))) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {397#false} is VALID [2022-04-07 22:21:23,794 INFO L290 TraceCheckUtils]: 12: Hoare triple {397#false} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {397#false} is VALID [2022-04-07 22:21:23,794 INFO L290 TraceCheckUtils]: 13: Hoare triple {397#false} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {397#false} is VALID [2022-04-07 22:21:23,794 INFO L290 TraceCheckUtils]: 14: Hoare triple {397#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#false} is VALID [2022-04-07 22:21:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 22:21:23,795 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-07 22:21:23,993 INFO L290 TraceCheckUtils]: 14: Hoare triple {397#false} [53] L7-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#false} is VALID [2022-04-07 22:21:23,994 INFO L290 TraceCheckUtils]: 13: Hoare triple {458#(not (<= __VERIFIER_assert_~cond 0))} [51] L6-->L7: Formula: (= v___VERIFIER_assert_~cond_2 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[] {397#false} is VALID [2022-04-07 22:21:23,997 INFO L290 TraceCheckUtils]: 12: Hoare triple {462#(< 0 |__VERIFIER_assert_#in~cond|)} [50] __VERIFIER_assertENTRY-->L6: Formula: (= v___VERIFIER_assert_~cond_1 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {458#(not (<= __VERIFIER_assert_~cond 0))} is VALID [2022-04-07 22:21:23,998 INFO L272 TraceCheckUtils]: 11: Hoare triple {466#(not (= (mod main_~x~0 4294967296) 6))} [48] L16-3-->__VERIFIER_assertENTRY: Formula: (= (ite (not (= 6 (mod v_main_~x~0_6 4294967296))) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~x~0=v_main_~x~0_6} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0] {462#(< 0 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-07 22:21:23,999 INFO L290 TraceCheckUtils]: 10: Hoare triple {466#(not (= (mod main_~x~0 4294967296) 6))} [46] L16-2-->L16-3: Formula: (not (< (mod v_main_~x~0_5 4294967296) 6)) InVars {main_~x~0=v_main_~x~0_5} OutVars{main_~x~0=v_main_~x~0_5} AuxVars[] AssignedVars[] {466#(not (= (mod main_~x~0 4294967296) 6))} is VALID [2022-04-07 22:21:24,000 INFO L290 TraceCheckUtils]: 9: Hoare triple {473#(not (= 6 (mod (+ main_~x~0 1) 4294967296)))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {466#(not (= (mod main_~x~0 4294967296) 6))} is VALID [2022-04-07 22:21:24,001 INFO L290 TraceCheckUtils]: 8: Hoare triple {477#(not (= (mod (+ main_~x~0 2) 4294967296) 6))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {473#(not (= 6 (mod (+ main_~x~0 1) 4294967296)))} is VALID [2022-04-07 22:21:24,002 INFO L290 TraceCheckUtils]: 7: Hoare triple {481#(not (= (mod (+ main_~x~0 3) 4294967296) 6))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {477#(not (= (mod (+ main_~x~0 2) 4294967296) 6))} is VALID [2022-04-07 22:21:24,003 INFO L290 TraceCheckUtils]: 6: Hoare triple {485#(not (= (mod (+ main_~x~0 4) 4294967296) 6))} [47] L16-2-->L16-2: Formula: (and (= v_main_~y~0_1 (* v_main_~y~0_2 2)) (< (mod v_main_~x~0_2 4294967296) 6) (= v_main_~x~0_1 (+ v_main_~x~0_2 1))) InVars {main_~x~0=v_main_~x~0_2, main_~y~0=v_main_~y~0_2} OutVars{main_#t~post4=|v_main_#t~post4_1|, main_~y~0=v_main_~y~0_1, main_~x~0=v_main_~x~0_1} AuxVars[] AssignedVars[main_~x~0, main_#t~post4, main_~y~0] {481#(not (= (mod (+ main_~x~0 3) 4294967296) 6))} is VALID [2022-04-07 22:21:24,004 INFO L290 TraceCheckUtils]: 5: Hoare triple {396#true} [43] mainENTRY-->L16-2: Formula: (and (= v_main_~x~0_4 0) (= v_main_~y~0_3 1)) InVars {} OutVars{main_~x~0=v_main_~x~0_4, main_~y~0=v_main_~y~0_3} AuxVars[] AssignedVars[main_~x~0, main_~y~0] {485#(not (= (mod (+ main_~x~0 4) 4294967296) 6))} is VALID [2022-04-07 22:21:24,005 INFO L272 TraceCheckUtils]: 4: Hoare triple {396#true} [40] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:24,006 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {396#true} {396#true} [56] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:24,007 INFO L290 TraceCheckUtils]: 2: Hoare triple {396#true} [44] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:24,008 INFO L290 TraceCheckUtils]: 1: Hoare triple {396#true} [41] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= (select |v_#length_1| 2) 18) (= |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] {396#true} is VALID [2022-04-07 22:21:24,009 INFO L272 TraceCheckUtils]: 0: Hoare triple {396#true} [39] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {396#true} is VALID [2022-04-07 22:21:24,010 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-07 22:21:24,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387637089] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-07 22:21:24,010 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-07 22:21:24,010 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 9] total 18 [2022-04-07 22:21:24,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753824732] [2022-04-07 22:21:24,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-07 22:21:24,014 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-04-07 22:21:24,014 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-07 22:21:24,015 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:24,044 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 22:21:24,045 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-04-07 22:21:24,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-07 22:21:24,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-04-07 22:21:24,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2022-04-07 22:21:24,049 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:24,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:24,869 INFO L93 Difference]: Finished difference Result 30 states and 35 transitions. [2022-04-07 22:21:24,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-04-07 22:21:24,870 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2022-04-07 22:21:24,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-07 22:21:24,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:24,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 35 transitions. [2022-04-07 22:21:24,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:24,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 35 transitions. [2022-04-07 22:21:24,873 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 17 states and 35 transitions. [2022-04-07 22:21:24,926 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-07 22:21:24,927 INFO L225 Difference]: With dead ends: 30 [2022-04-07 22:21:24,927 INFO L226 Difference]: Without dead ends: 22 [2022-04-07 22:21:24,928 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=201, Invalid=791, Unknown=0, NotChecked=0, Total=992 [2022-04-07 22:21:24,929 INFO L913 BasicCegarLoop]: 9 mSDtfsCounter, 23 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-07 22:21:24,929 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [23 Valid, 51 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-07 22:21:24,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-04-07 22:21:24,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2022-04-07 22:21:24,948 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-07 22:21:24,949 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand has 22 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:24,949 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand has 22 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:24,949 INFO L87 Difference]: Start difference. First operand 22 states. Second operand has 22 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:24,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:24,952 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-04-07 22:21:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-07 22:21:24,952 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 22:21:24,952 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 22:21:24,953 INFO L74 IsIncluded]: Start isIncluded. First operand has 22 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 22 states. [2022-04-07 22:21:24,953 INFO L87 Difference]: Start difference. First operand has 22 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand 22 states. [2022-04-07 22:21:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-07 22:21:24,960 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2022-04-07 22:21:24,960 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-07 22:21:24,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-07 22:21:24,979 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-07 22:21:24,979 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-07 22:21:24,979 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-07 22:21:24,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 17 states have internal predecessors, (19), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:24,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2022-04-07 22:21:24,984 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 15 [2022-04-07 22:21:24,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-07 22:21:24,985 INFO L478 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2022-04-07 22:21:24,985 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 1.3333333333333333) internal successors, (24), 15 states have internal predecessors, (24), 3 states have call successors, (6), 5 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-07 22:21:24,985 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2022-04-07 22:21:24,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-07 22:21:24,987 INFO L491 BasicCegarLoop]: Found error trace [2022-04-07 22:21:24,987 INFO L499 BasicCegarLoop]: trace histogram [6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-07 22:21:25,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-07 22:21:25,209 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-04-07 22:21:25,210 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-07 22:21:25,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-07 22:21:25,210 INFO L85 PathProgramCache]: Analyzing trace with hash 466685312, now seen corresponding path program 3 times [2022-04-07 22:21:25,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-07 22:21:25,211 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318157933] [2022-04-07 22:21:25,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-07 22:21:25,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-07 22:21:25,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 22:21:25,235 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-04-07 22:21:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-04-07 22:21:25,275 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-04-07 22:21:25,276 INFO L618 BasicCegarLoop]: Counterexample is feasible [2022-04-07 22:21:25,277 INFO L788 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-07 22:21:25,278 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-04-07 22:21:25,281 INFO L719 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-04-07 22:21:25,283 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: ULTIMATE.initENTRY has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: __VERIFIER_assertENTRY has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: L6 has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2022-04-07 22:21:25,298 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-07 22:21:25,299 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-07 22:21:25,299 WARN L170 areAnnotationChecker]: L6-2 has no Hoare annotation [2022-04-07 22:21:25,299 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2022-04-07 22:21:25,299 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-07 22:21:25,299 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-07 22:21:25,299 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-07 22:21:25,299 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-07 22:21:25,299 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-07 22:21:25,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.04 10:21:25 BasicIcfg [2022-04-07 22:21:25,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-07 22:21:25,301 INFO L158 Benchmark]: Toolchain (without parser) took 4322.76ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 154.7MB in the beginning and 215.1MB in the end (delta: -60.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 22:21:25,301 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 204.5MB. Free memory was 170.8MB in the beginning and 170.6MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 22:21:25,301 INFO L158 Benchmark]: CACSL2BoogieTranslator took 259.05ms. Allocated memory is still 204.5MB. Free memory was 154.5MB in the beginning and 181.3MB in the end (delta: -26.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-04-07 22:21:25,301 INFO L158 Benchmark]: Boogie Preprocessor took 28.20ms. Allocated memory is still 204.5MB. Free memory was 181.3MB in the beginning and 180.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-07 22:21:25,301 INFO L158 Benchmark]: RCFGBuilder took 261.83ms. Allocated memory is still 204.5MB. Free memory was 180.0MB in the beginning and 170.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-07 22:21:25,302 INFO L158 Benchmark]: IcfgTransformer took 44.38ms. Allocated memory is still 204.5MB. Free memory was 170.2MB in the beginning and 168.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-07 22:21:25,302 INFO L158 Benchmark]: TraceAbstraction took 3723.40ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 168.5MB in the beginning and 215.1MB in the end (delta: -46.6MB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-07 22:21:25,303 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 0.14ms. Allocated memory is still 204.5MB. Free memory was 170.8MB in the beginning and 170.6MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 259.05ms. Allocated memory is still 204.5MB. Free memory was 154.5MB in the beginning and 181.3MB in the end (delta: -26.9MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.20ms. Allocated memory is still 204.5MB. Free memory was 181.3MB in the beginning and 180.0MB in the end (delta: 1.3MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 261.83ms. Allocated memory is still 204.5MB. Free memory was 180.0MB in the beginning and 170.2MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 44.38ms. Allocated memory is still 204.5MB. Free memory was 170.2MB in the beginning and 168.8MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3723.40ms. Allocated memory was 204.5MB in the beginning and 245.4MB in the end (delta: 40.9MB). Free memory was 168.5MB in the beginning and 215.1MB in the end (delta: -46.6MB). There was no memory consumed. 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 - CounterExampleResult [Line: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L13] unsigned int x = 0; [L14] unsigned int y = 1; VAL [x=0, y=1] [L16] COND TRUE x < 6 [L17] x++ [L18] y *= 2 VAL [x=1, y=2] [L16] COND TRUE x < 6 [L17] x++ [L18] y *= 2 VAL [x=2, y=4] [L16] COND TRUE x < 6 [L17] x++ [L18] y *= 2 VAL [x=3, y=8] [L16] COND TRUE x < 6 [L17] x++ [L18] y *= 2 VAL [x=4, y=16] [L16] COND TRUE x < 6 [L17] x++ [L18] y *= 2 VAL [x=5, y=32] [L16] COND TRUE x < 6 [L17] x++ [L18] y *= 2 VAL [x=6, y=64] [L16] COND FALSE !(x < 6) VAL [x=6, y=64] [L21] CALL __VERIFIER_assert(x != 6) VAL [\old(cond)=0] [L6] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L7] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 6, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 50 mSDsluCounter, 140 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 94 mSDsCounter, 57 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 163 IncrementalHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 57 mSolverCounterUnsat, 46 mSDtfsCounter, 163 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 107 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=4, InterpolantAutomatonStates: 34, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 278 SizeOfPredicates, 0 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 0/33 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 RESULT: Ultimate proved your program to be incorrect! [2022-04-07 22:21:25,317 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...