/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/loops/sum04-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-15 00:06:04,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-15 00:06:04,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-15 00:06:04,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-04-15 00:06:04,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-15 00:06:04,916 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-15 00:06:04,917 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-15 00:06:04,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-15 00:06:04,937 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-15 00:06:04,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-15 00:06:04,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-15 00:06:04,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-15 00:06:04,939 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-15 00:06:04,939 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-15 00:06:04,939 INFO L138 SettingsManager]: * Use SBE=true [2022-04-15 00:06:04,939 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-15 00:06:04,939 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-15 00:06:04,940 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-15 00:06:04,940 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-15 00:06:04,940 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-15 00:06:04,940 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-15 00:06:04,941 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-15 00:06:04,941 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-15 00:06:04,941 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-15 00:06:04,941 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-15 00:06:04,941 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-15 00:06:04,941 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-15 00:06:04,941 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 00:06:04,941 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-15 00:06:04,941 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-15 00:06:04,941 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-15 00:06:04,942 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-15 00:06:04,942 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-15 00:06:04,942 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-15 00:06:04,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-15 00:06:04,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-15 00:06:04,943 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-15 00:06:04,943 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-15 00:06:05,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-15 00:06:05,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-15 00:06:05,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-15 00:06:05,137 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-15 00:06:05,138 INFO L275 PluginConnector]: CDTParser initialized [2022-04-15 00:06:05,139 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/sum04-2.i [2022-04-15 00:06:05,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e8d12ce/acbb491a19534da9b1d0f46fb245d44e/FLAG1bd39c0f6 [2022-04-15 00:06:05,566 INFO L306 CDTParser]: Found 1 translation units. [2022-04-15 00:06:05,566 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/sum04-2.i [2022-04-15 00:06:05,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e8d12ce/acbb491a19534da9b1d0f46fb245d44e/FLAG1bd39c0f6 [2022-04-15 00:06:05,591 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e8d12ce/acbb491a19534da9b1d0f46fb245d44e [2022-04-15 00:06:05,593 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-15 00:06:05,594 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-15 00:06:05,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-15 00:06:05,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-15 00:06:05,597 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-15 00:06:05,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,598 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363d186d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05, skipping insertion in model container [2022-04-15 00:06:05,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-15 00:06:05,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-15 00:06:05,728 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum04-2.i[808,821] [2022-04-15 00:06:05,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 00:06:05,740 INFO L203 MainTranslator]: Completed pre-run [2022-04-15 00:06:05,748 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/loops/sum04-2.i[808,821] [2022-04-15 00:06:05,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-15 00:06:05,758 INFO L208 MainTranslator]: Completed translation [2022-04-15 00:06:05,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05 WrapperNode [2022-04-15 00:06:05,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-15 00:06:05,760 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-15 00:06:05,760 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-15 00:06:05,760 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-15 00:06:05,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,774 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,777 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,777 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,778 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-15 00:06:05,779 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-15 00:06:05,779 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-15 00:06:05,779 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-15 00:06:05,780 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-15 00:06:05,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 00:06:05,801 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) [2022-04-15 00:06:05,813 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 [2022-04-15 00:06:05,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-15 00:06:05,834 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-15 00:06:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-15 00:06:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-15 00:06:05,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-15 00:06:05,835 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-15 00:06:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-15 00:06:05,836 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2022-04-15 00:06:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2022-04-15 00:06:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-15 00:06:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-15 00:06:05,838 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-15 00:06:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-15 00:06:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-15 00:06:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-15 00:06:05,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-15 00:06:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-15 00:06:05,841 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-15 00:06:05,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-15 00:06:05,885 INFO L234 CfgBuilder]: Building ICFG [2022-04-15 00:06:05,886 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-15 00:06:05,965 INFO L275 CfgBuilder]: Performing block encoding [2022-04-15 00:06:05,970 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-15 00:06:05,970 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-15 00:06:05,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:06:05 BoogieIcfgContainer [2022-04-15 00:06:05,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-15 00:06:05,972 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-15 00:06:05,972 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-15 00:06:05,973 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-15 00:06:05,977 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:06:05" (1/1) ... [2022-04-15 00:06:05,978 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-15 00:06:05,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 12:06:05 BasicIcfg [2022-04-15 00:06:05,990 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-15 00:06:05,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-15 00:06:05,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-15 00:06:05,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-15 00:06:05,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.04 12:06:05" (1/4) ... [2022-04-15 00:06:05,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1344f175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:06:05, skipping insertion in model container [2022-04-15 00:06:05,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.04 12:06:05" (2/4) ... [2022-04-15 00:06:05,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1344f175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.04 12:06:05, skipping insertion in model container [2022-04-15 00:06:05,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.04 12:06:05" (3/4) ... [2022-04-15 00:06:05,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1344f175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:06:05, skipping insertion in model container [2022-04-15 00:06:05,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 15.04 12:06:05" (4/4) ... [2022-04-15 00:06:05,996 INFO L111 eAbstractionObserver]: Analyzing ICFG sum04-2.iqvasr [2022-04-15 00:06:05,999 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-15 00:06:05,999 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-15 00:06:06,049 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-15 00:06:06,053 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 [2022-04-15 00:06:06,054 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-15 00:06:06,083 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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) [2022-04-15 00:06:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-15 00:06:06,089 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:06:06,089 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:06:06,090 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:06:06,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:06:06,097 INFO L85 PathProgramCache]: Analyzing trace with hash 1795998501, now seen corresponding path program 1 times [2022-04-15 00:06:06,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:06:06,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66774073] [2022-04-15 00:06:06,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:06:06,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:06:06,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:06:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:06,275 INFO L290 TraceCheckUtils]: 0: Hoare triple {27#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {22#true} is VALID [2022-04-15 00:06:06,275 INFO L290 TraceCheckUtils]: 1: Hoare triple {22#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-15 00:06:06,276 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {22#true} {22#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-15 00:06:06,282 INFO L272 TraceCheckUtils]: 0: Hoare triple {22#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {27#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:06:06,282 INFO L290 TraceCheckUtils]: 1: Hoare triple {27#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {22#true} is VALID [2022-04-15 00:06:06,282 INFO L290 TraceCheckUtils]: 2: Hoare triple {22#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-15 00:06:06,283 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {22#true} {22#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-15 00:06:06,283 INFO L272 TraceCheckUtils]: 4: Hoare triple {22#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {22#true} is VALID [2022-04-15 00:06:06,283 INFO L290 TraceCheckUtils]: 5: Hoare triple {22#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {22#true} is VALID [2022-04-15 00:06:06,286 INFO L290 TraceCheckUtils]: 6: Hoare triple {22#true} [51] L24-3-->L24-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {23#false} is VALID [2022-04-15 00:06:06,287 INFO L272 TraceCheckUtils]: 7: Hoare triple {23#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {23#false} is VALID [2022-04-15 00:06:06,287 INFO L290 TraceCheckUtils]: 8: Hoare triple {23#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {23#false} is VALID [2022-04-15 00:06:06,287 INFO L290 TraceCheckUtils]: 9: Hoare triple {23#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {23#false} is VALID [2022-04-15 00:06:06,287 INFO L290 TraceCheckUtils]: 10: Hoare triple {23#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {23#false} is VALID [2022-04-15 00:06:06,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:06,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:06:06,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66774073] [2022-04-15 00:06:06,289 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66774073] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 00:06:06,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 00:06:06,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-15 00:06:06,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675138709] [2022-04-15 00:06:06,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 00:06:06,299 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 [2022-04-15 00:06:06,300 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 00:06:06,302 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) [2022-04-15 00:06:06,328 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:06,328 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-15 00:06:06,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 00:06:06,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-15 00:06:06,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-15 00:06:06,351 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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) [2022-04-15 00:06:06,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:06,434 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2022-04-15 00:06:06,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-15 00:06:06,434 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 [2022-04-15 00:06:06,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 00:06:06,435 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) [2022-04-15 00:06:06,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2022-04-15 00:06:06,443 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) [2022-04-15 00:06:06,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 33 transitions. [2022-04-15 00:06:06,448 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 33 transitions. [2022-04-15 00:06:06,490 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:06,495 INFO L225 Difference]: With dead ends: 30 [2022-04-15 00:06:06,496 INFO L226 Difference]: Without dead ends: 13 [2022-04-15 00:06:06,498 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 [2022-04-15 00:06:06,503 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 21 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 [2022-04-15 00:06:06,505 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 00:06:06,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-04-15 00:06:06,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-04-15 00:06:06,528 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 00:06:06,529 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) [2022-04-15 00:06:06,529 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) [2022-04-15 00:06:06,529 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) [2022-04-15 00:06:06,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:06,531 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-15 00:06:06,531 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-15 00:06:06,531 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:06,531 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:06,531 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. [2022-04-15 00:06:06,532 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. [2022-04-15 00:06:06,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:06,533 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-04-15 00:06:06,533 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-15 00:06:06,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:06,533 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:06,534 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 00:06:06,534 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 00:06:06,534 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) [2022-04-15 00:06:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2022-04-15 00:06:06,536 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2022-04-15 00:06:06,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 00:06:06,536 INFO L478 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2022-04-15 00:06:06,536 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) [2022-04-15 00:06:06,536 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2022-04-15 00:06:06,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-15 00:06:06,537 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:06:06,537 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:06:06,537 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-15 00:06:06,537 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:06:06,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:06:06,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1796922022, now seen corresponding path program 1 times [2022-04-15 00:06:06,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:06:06,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346349030] [2022-04-15 00:06:06,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:06:06,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:06:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:06,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:06:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:06,578 INFO L290 TraceCheckUtils]: 0: Hoare triple {121#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {115#true} is VALID [2022-04-15 00:06:06,578 INFO L290 TraceCheckUtils]: 1: Hoare triple {115#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {115#true} is VALID [2022-04-15 00:06:06,578 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {115#true} {115#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {115#true} is VALID [2022-04-15 00:06:06,579 INFO L272 TraceCheckUtils]: 0: Hoare triple {115#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {121#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:06:06,580 INFO L290 TraceCheckUtils]: 1: Hoare triple {121#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {115#true} is VALID [2022-04-15 00:06:06,580 INFO L290 TraceCheckUtils]: 2: Hoare triple {115#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {115#true} is VALID [2022-04-15 00:06:06,580 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {115#true} {115#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {115#true} is VALID [2022-04-15 00:06:06,580 INFO L272 TraceCheckUtils]: 4: Hoare triple {115#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {115#true} is VALID [2022-04-15 00:06:06,581 INFO L290 TraceCheckUtils]: 5: Hoare triple {115#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {120#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-15 00:06:06,581 INFO L290 TraceCheckUtils]: 6: Hoare triple {120#(= (+ (- 1) main_~i~0) 0)} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {116#false} is VALID [2022-04-15 00:06:06,581 INFO L272 TraceCheckUtils]: 7: Hoare triple {116#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {116#false} is VALID [2022-04-15 00:06:06,582 INFO L290 TraceCheckUtils]: 8: Hoare triple {116#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {116#false} is VALID [2022-04-15 00:06:06,582 INFO L290 TraceCheckUtils]: 9: Hoare triple {116#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {116#false} is VALID [2022-04-15 00:06:06,582 INFO L290 TraceCheckUtils]: 10: Hoare triple {116#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {116#false} is VALID [2022-04-15 00:06:06,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:06,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:06:06,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346349030] [2022-04-15 00:06:06,583 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346349030] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 00:06:06,583 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-15 00:06:06,583 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-15 00:06:06,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136792669] [2022-04-15 00:06:06,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 00:06:06,584 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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 [2022-04-15 00:06:06,584 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 00:06:06,585 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2022-04-15 00:06:06,593 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:06,594 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-04-15 00:06:06,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 00:06:06,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-04-15 00:06:06,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-04-15 00:06:06,595 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2022-04-15 00:06:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:06,652 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-04-15 00:06:06,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-04-15 00:06:06,653 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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 [2022-04-15 00:06:06,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 00:06:06,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2022-04-15 00:06:06,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-04-15 00:06:06,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2022-04-15 00:06:06,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2022-04-15 00:06:06,655 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 4 states and 20 transitions. [2022-04-15 00:06:06,676 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:06,678 INFO L225 Difference]: With dead ends: 20 [2022-04-15 00:06:06,679 INFO L226 Difference]: Without dead ends: 15 [2022-04-15 00:06:06,682 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-04-15 00:06:06,684 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 00:06:06,685 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 18 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 00:06:06,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-04-15 00:06:06,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2022-04-15 00:06:06,687 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 00:06:06,687 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2022-04-15 00:06:06,688 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2022-04-15 00:06:06,688 INFO L87 Difference]: Start difference. First operand 15 states. Second operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2022-04-15 00:06:06,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:06,689 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-15 00:06:06,689 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-15 00:06:06,689 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:06,689 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:06,689 INFO L74 IsIncluded]: Start isIncluded. First operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 15 states. [2022-04-15 00:06:06,690 INFO L87 Difference]: Start difference. First operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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 15 states. [2022-04-15 00:06:06,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:06,690 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-04-15 00:06:06,691 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-04-15 00:06:06,691 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:06,691 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:06,691 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 00:06:06,691 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 00:06:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 states have internal predecessors, (10), 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) [2022-04-15 00:06:06,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2022-04-15 00:06:06,692 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2022-04-15 00:06:06,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 00:06:06,692 INFO L478 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2022-04-15 00:06:06,692 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 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) [2022-04-15 00:06:06,693 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2022-04-15 00:06:06,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-04-15 00:06:06,693 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:06:06,693 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:06:06,693 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-15 00:06:06,693 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:06:06,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:06:06,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1176605188, now seen corresponding path program 1 times [2022-04-15 00:06:06,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:06:06,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950510930] [2022-04-15 00:06:06,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:06:06,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:06:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:06,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:06:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:06,765 INFO L290 TraceCheckUtils]: 0: Hoare triple {215#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {208#true} is VALID [2022-04-15 00:06:06,765 INFO L290 TraceCheckUtils]: 1: Hoare triple {208#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:06,765 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {208#true} {208#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:06,766 INFO L272 TraceCheckUtils]: 0: Hoare triple {208#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {215#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:06:06,766 INFO L290 TraceCheckUtils]: 1: Hoare triple {215#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {208#true} is VALID [2022-04-15 00:06:06,766 INFO L290 TraceCheckUtils]: 2: Hoare triple {208#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:06,766 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {208#true} {208#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:06,767 INFO L272 TraceCheckUtils]: 4: Hoare triple {208#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:06,767 INFO L290 TraceCheckUtils]: 5: Hoare triple {208#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {213#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-15 00:06:06,768 INFO L290 TraceCheckUtils]: 6: Hoare triple {213#(= (+ (- 1) main_~i~0) 0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {213#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-15 00:06:06,768 INFO L290 TraceCheckUtils]: 7: Hoare triple {213#(= (+ (- 1) main_~i~0) 0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {214#(<= main_~i~0 2)} is VALID [2022-04-15 00:06:06,769 INFO L290 TraceCheckUtils]: 8: Hoare triple {214#(<= main_~i~0 2)} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-15 00:06:06,770 INFO L272 TraceCheckUtils]: 9: Hoare triple {209#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {209#false} is VALID [2022-04-15 00:06:06,770 INFO L290 TraceCheckUtils]: 10: Hoare triple {209#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {209#false} is VALID [2022-04-15 00:06:06,771 INFO L290 TraceCheckUtils]: 11: Hoare triple {209#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-15 00:06:06,771 INFO L290 TraceCheckUtils]: 12: Hoare triple {209#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-15 00:06:06,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:06,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:06:06,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950510930] [2022-04-15 00:06:06,773 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950510930] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 00:06:06,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1023468724] [2022-04-15 00:06:06,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:06:06,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 00:06:06,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 00:06:06,792 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) [2022-04-15 00:06:06,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-15 00:06:06,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:06,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2022-04-15 00:06:06,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:06,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 00:06:06,931 INFO L272 TraceCheckUtils]: 0: Hoare triple {208#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:06,931 INFO L290 TraceCheckUtils]: 1: Hoare triple {208#true} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {208#true} is VALID [2022-04-15 00:06:06,932 INFO L290 TraceCheckUtils]: 2: Hoare triple {208#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:06,933 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {208#true} {208#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:06,934 INFO L272 TraceCheckUtils]: 4: Hoare triple {208#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:06,935 INFO L290 TraceCheckUtils]: 5: Hoare triple {208#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {234#(<= main_~i~0 1)} is VALID [2022-04-15 00:06:06,939 INFO L290 TraceCheckUtils]: 6: Hoare triple {234#(<= main_~i~0 1)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {234#(<= main_~i~0 1)} is VALID [2022-04-15 00:06:06,939 INFO L290 TraceCheckUtils]: 7: Hoare triple {234#(<= main_~i~0 1)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {214#(<= main_~i~0 2)} is VALID [2022-04-15 00:06:06,940 INFO L290 TraceCheckUtils]: 8: Hoare triple {214#(<= main_~i~0 2)} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-15 00:06:06,940 INFO L272 TraceCheckUtils]: 9: Hoare triple {209#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {209#false} is VALID [2022-04-15 00:06:06,940 INFO L290 TraceCheckUtils]: 10: Hoare triple {209#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {209#false} is VALID [2022-04-15 00:06:06,942 INFO L290 TraceCheckUtils]: 11: Hoare triple {209#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-15 00:06:06,943 INFO L290 TraceCheckUtils]: 12: Hoare triple {209#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-15 00:06:06,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:06,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 00:06:07,011 INFO L290 TraceCheckUtils]: 12: Hoare triple {209#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-15 00:06:07,011 INFO L290 TraceCheckUtils]: 11: Hoare triple {209#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-15 00:06:07,012 INFO L290 TraceCheckUtils]: 10: Hoare triple {209#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {209#false} is VALID [2022-04-15 00:06:07,012 INFO L272 TraceCheckUtils]: 9: Hoare triple {209#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {209#false} is VALID [2022-04-15 00:06:07,012 INFO L290 TraceCheckUtils]: 8: Hoare triple {268#(<= main_~i~0 8)} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {209#false} is VALID [2022-04-15 00:06:07,013 INFO L290 TraceCheckUtils]: 7: Hoare triple {272#(<= main_~i~0 7)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {268#(<= main_~i~0 8)} is VALID [2022-04-15 00:06:07,013 INFO L290 TraceCheckUtils]: 6: Hoare triple {272#(<= main_~i~0 7)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {272#(<= main_~i~0 7)} is VALID [2022-04-15 00:06:07,014 INFO L290 TraceCheckUtils]: 5: Hoare triple {208#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {272#(<= main_~i~0 7)} is VALID [2022-04-15 00:06:07,014 INFO L272 TraceCheckUtils]: 4: Hoare triple {208#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:07,014 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {208#true} {208#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:07,014 INFO L290 TraceCheckUtils]: 2: Hoare triple {208#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:07,014 INFO L290 TraceCheckUtils]: 1: Hoare triple {208#true} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {208#true} is VALID [2022-04-15 00:06:07,015 INFO L272 TraceCheckUtils]: 0: Hoare triple {208#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#true} is VALID [2022-04-15 00:06:07,015 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:07,015 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1023468724] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-15 00:06:07,015 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-15 00:06:07,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2022-04-15 00:06:07,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573421767] [2022-04-15 00:06:07,016 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-15 00:06:07,016 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-15 00:06:07,016 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 00:06:07,017 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,030 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:07,031 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-15 00:06:07,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 00:06:07,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-15 00:06:07,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2022-04-15 00:06:07,032 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:07,117 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2022-04-15 00:06:07,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-15 00:06:07,117 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 13 [2022-04-15 00:06:07,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 00:06:07,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 27 transitions. [2022-04-15 00:06:07,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 27 transitions. [2022-04-15 00:06:07,120 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 27 transitions. [2022-04-15 00:06:07,141 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:07,142 INFO L225 Difference]: With dead ends: 25 [2022-04-15 00:06:07,142 INFO L226 Difference]: Without dead ends: 20 [2022-04-15 00:06:07,142 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2022-04-15 00:06:07,143 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 14 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 00:06:07,143 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 23 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 00:06:07,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-04-15 00:06:07,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-04-15 00:06:07,148 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 00:06:07,148 INFO L82 GeneralOperation]: Start isEquivalent. First operand 20 states. Second operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-04-15 00:06:07,148 INFO L74 IsIncluded]: Start isIncluded. First operand 20 states. Second operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-04-15 00:06:07,148 INFO L87 Difference]: Start difference. First operand 20 states. Second operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-04-15 00:06:07,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:07,149 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-04-15 00:06:07,149 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-04-15 00:06:07,150 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:07,150 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:07,150 INFO L74 IsIncluded]: Start isIncluded. First operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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 20 states. [2022-04-15 00:06:07,150 INFO L87 Difference]: Start difference. First operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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 20 states. [2022-04-15 00:06:07,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:07,151 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2022-04-15 00:06:07,151 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-04-15 00:06:07,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:07,152 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:07,152 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 00:06:07,152 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 00:06:07,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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) [2022-04-15 00:06:07,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2022-04-15 00:06:07,153 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 13 [2022-04-15 00:06:07,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 00:06:07,153 INFO L478 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2022-04-15 00:06:07,153 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,153 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2022-04-15 00:06:07,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-04-15 00:06:07,154 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:06:07,154 INFO L499 BasicCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:06:07,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-15 00:06:07,379 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 [2022-04-15 00:06:07,380 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:06:07,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:06:07,380 INFO L85 PathProgramCache]: Analyzing trace with hash 2042821406, now seen corresponding path program 2 times [2022-04-15 00:06:07,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:06:07,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750800350] [2022-04-15 00:06:07,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:06:07,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:06:07,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:07,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:06:07,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:07,455 INFO L290 TraceCheckUtils]: 0: Hoare triple {423#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {413#true} is VALID [2022-04-15 00:06:07,455 INFO L290 TraceCheckUtils]: 1: Hoare triple {413#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,456 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {413#true} {413#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,456 INFO L272 TraceCheckUtils]: 0: Hoare triple {413#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {423#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:06:07,456 INFO L290 TraceCheckUtils]: 1: Hoare triple {423#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {413#true} is VALID [2022-04-15 00:06:07,457 INFO L290 TraceCheckUtils]: 2: Hoare triple {413#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,457 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {413#true} {413#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,457 INFO L272 TraceCheckUtils]: 4: Hoare triple {413#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,457 INFO L290 TraceCheckUtils]: 5: Hoare triple {413#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {418#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-15 00:06:07,458 INFO L290 TraceCheckUtils]: 6: Hoare triple {418#(= (+ (- 1) main_~i~0) 0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {418#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-15 00:06:07,458 INFO L290 TraceCheckUtils]: 7: Hoare triple {418#(= (+ (- 1) main_~i~0) 0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {419#(<= main_~i~0 2)} is VALID [2022-04-15 00:06:07,458 INFO L290 TraceCheckUtils]: 8: Hoare triple {419#(<= main_~i~0 2)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {419#(<= main_~i~0 2)} is VALID [2022-04-15 00:06:07,459 INFO L290 TraceCheckUtils]: 9: Hoare triple {419#(<= main_~i~0 2)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {420#(<= main_~i~0 3)} is VALID [2022-04-15 00:06:07,459 INFO L290 TraceCheckUtils]: 10: Hoare triple {420#(<= main_~i~0 3)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {420#(<= main_~i~0 3)} is VALID [2022-04-15 00:06:07,460 INFO L290 TraceCheckUtils]: 11: Hoare triple {420#(<= main_~i~0 3)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {421#(<= main_~i~0 4)} is VALID [2022-04-15 00:06:07,460 INFO L290 TraceCheckUtils]: 12: Hoare triple {421#(<= main_~i~0 4)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {421#(<= main_~i~0 4)} is VALID [2022-04-15 00:06:07,461 INFO L290 TraceCheckUtils]: 13: Hoare triple {421#(<= main_~i~0 4)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {422#(<= main_~i~0 5)} is VALID [2022-04-15 00:06:07,461 INFO L290 TraceCheckUtils]: 14: Hoare triple {422#(<= main_~i~0 5)} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {414#false} is VALID [2022-04-15 00:06:07,461 INFO L272 TraceCheckUtils]: 15: Hoare triple {414#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {414#false} is VALID [2022-04-15 00:06:07,461 INFO L290 TraceCheckUtils]: 16: Hoare triple {414#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {414#false} is VALID [2022-04-15 00:06:07,462 INFO L290 TraceCheckUtils]: 17: Hoare triple {414#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {414#false} is VALID [2022-04-15 00:06:07,462 INFO L290 TraceCheckUtils]: 18: Hoare triple {414#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {414#false} is VALID [2022-04-15 00:06:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:07,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:06:07,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750800350] [2022-04-15 00:06:07,462 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750800350] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 00:06:07,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564307579] [2022-04-15 00:06:07,462 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-15 00:06:07,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 00:06:07,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 00:06:07,464 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) [2022-04-15 00:06:07,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-15 00:06:07,493 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-15 00:06:07,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-15 00:06:07,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2022-04-15 00:06:07,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:07,501 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 00:06:07,586 INFO L272 TraceCheckUtils]: 0: Hoare triple {413#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,587 INFO L290 TraceCheckUtils]: 1: Hoare triple {413#true} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {413#true} is VALID [2022-04-15 00:06:07,587 INFO L290 TraceCheckUtils]: 2: Hoare triple {413#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,587 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {413#true} {413#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,587 INFO L272 TraceCheckUtils]: 4: Hoare triple {413#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,588 INFO L290 TraceCheckUtils]: 5: Hoare triple {413#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {442#(<= main_~i~0 1)} is VALID [2022-04-15 00:06:07,588 INFO L290 TraceCheckUtils]: 6: Hoare triple {442#(<= main_~i~0 1)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {442#(<= main_~i~0 1)} is VALID [2022-04-15 00:06:07,589 INFO L290 TraceCheckUtils]: 7: Hoare triple {442#(<= main_~i~0 1)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {419#(<= main_~i~0 2)} is VALID [2022-04-15 00:06:07,589 INFO L290 TraceCheckUtils]: 8: Hoare triple {419#(<= main_~i~0 2)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {419#(<= main_~i~0 2)} is VALID [2022-04-15 00:06:07,589 INFO L290 TraceCheckUtils]: 9: Hoare triple {419#(<= main_~i~0 2)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {420#(<= main_~i~0 3)} is VALID [2022-04-15 00:06:07,590 INFO L290 TraceCheckUtils]: 10: Hoare triple {420#(<= main_~i~0 3)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {420#(<= main_~i~0 3)} is VALID [2022-04-15 00:06:07,590 INFO L290 TraceCheckUtils]: 11: Hoare triple {420#(<= main_~i~0 3)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {421#(<= main_~i~0 4)} is VALID [2022-04-15 00:06:07,591 INFO L290 TraceCheckUtils]: 12: Hoare triple {421#(<= main_~i~0 4)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {421#(<= main_~i~0 4)} is VALID [2022-04-15 00:06:07,591 INFO L290 TraceCheckUtils]: 13: Hoare triple {421#(<= main_~i~0 4)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {422#(<= main_~i~0 5)} is VALID [2022-04-15 00:06:07,591 INFO L290 TraceCheckUtils]: 14: Hoare triple {422#(<= main_~i~0 5)} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {414#false} is VALID [2022-04-15 00:06:07,592 INFO L272 TraceCheckUtils]: 15: Hoare triple {414#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {414#false} is VALID [2022-04-15 00:06:07,592 INFO L290 TraceCheckUtils]: 16: Hoare triple {414#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {414#false} is VALID [2022-04-15 00:06:07,592 INFO L290 TraceCheckUtils]: 17: Hoare triple {414#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {414#false} is VALID [2022-04-15 00:06:07,592 INFO L290 TraceCheckUtils]: 18: Hoare triple {414#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {414#false} is VALID [2022-04-15 00:06:07,592 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:07,592 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 00:06:07,699 INFO L290 TraceCheckUtils]: 18: Hoare triple {414#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {414#false} is VALID [2022-04-15 00:06:07,699 INFO L290 TraceCheckUtils]: 17: Hoare triple {414#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {414#false} is VALID [2022-04-15 00:06:07,699 INFO L290 TraceCheckUtils]: 16: Hoare triple {414#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {414#false} is VALID [2022-04-15 00:06:07,699 INFO L272 TraceCheckUtils]: 15: Hoare triple {414#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {414#false} is VALID [2022-04-15 00:06:07,700 INFO L290 TraceCheckUtils]: 14: Hoare triple {494#(<= main_~i~0 8)} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {414#false} is VALID [2022-04-15 00:06:07,700 INFO L290 TraceCheckUtils]: 13: Hoare triple {498#(<= main_~i~0 7)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {494#(<= main_~i~0 8)} is VALID [2022-04-15 00:06:07,701 INFO L290 TraceCheckUtils]: 12: Hoare triple {498#(<= main_~i~0 7)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {498#(<= main_~i~0 7)} is VALID [2022-04-15 00:06:07,701 INFO L290 TraceCheckUtils]: 11: Hoare triple {505#(<= main_~i~0 6)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {498#(<= main_~i~0 7)} is VALID [2022-04-15 00:06:07,701 INFO L290 TraceCheckUtils]: 10: Hoare triple {505#(<= main_~i~0 6)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {505#(<= main_~i~0 6)} is VALID [2022-04-15 00:06:07,702 INFO L290 TraceCheckUtils]: 9: Hoare triple {422#(<= main_~i~0 5)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {505#(<= main_~i~0 6)} is VALID [2022-04-15 00:06:07,702 INFO L290 TraceCheckUtils]: 8: Hoare triple {422#(<= main_~i~0 5)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {422#(<= main_~i~0 5)} is VALID [2022-04-15 00:06:07,703 INFO L290 TraceCheckUtils]: 7: Hoare triple {421#(<= main_~i~0 4)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {422#(<= main_~i~0 5)} is VALID [2022-04-15 00:06:07,703 INFO L290 TraceCheckUtils]: 6: Hoare triple {421#(<= main_~i~0 4)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {421#(<= main_~i~0 4)} is VALID [2022-04-15 00:06:07,703 INFO L290 TraceCheckUtils]: 5: Hoare triple {413#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {421#(<= main_~i~0 4)} is VALID [2022-04-15 00:06:07,703 INFO L272 TraceCheckUtils]: 4: Hoare triple {413#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,704 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {413#true} {413#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,704 INFO L290 TraceCheckUtils]: 2: Hoare triple {413#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,704 INFO L290 TraceCheckUtils]: 1: Hoare triple {413#true} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {413#true} is VALID [2022-04-15 00:06:07,704 INFO L272 TraceCheckUtils]: 0: Hoare triple {413#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {413#true} is VALID [2022-04-15 00:06:07,704 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:07,704 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564307579] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-15 00:06:07,704 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-15 00:06:07,705 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 12 [2022-04-15 00:06:07,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471242627] [2022-04-15 00:06:07,705 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-15 00:06:07,705 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-04-15 00:06:07,706 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 00:06:07,706 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,725 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:07,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-04-15 00:06:07,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 00:06:07,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-04-15 00:06:07,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=75, Unknown=0, NotChecked=0, Total=132 [2022-04-15 00:06:07,726 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:07,866 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2022-04-15 00:06:07,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-15 00:06:07,866 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-04-15 00:06:07,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 00:06:07,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 36 transitions. [2022-04-15 00:06:07,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 36 transitions. [2022-04-15 00:06:07,869 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 11 states and 36 transitions. [2022-04-15 00:06:07,894 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:07,895 INFO L225 Difference]: With dead ends: 33 [2022-04-15 00:06:07,895 INFO L226 Difference]: Without dead ends: 28 [2022-04-15 00:06:07,911 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=146, Invalid=234, Unknown=0, NotChecked=0, Total=380 [2022-04-15 00:06:07,912 INFO L913 BasicCegarLoop]: 11 mSDtfsCounter, 22 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 00:06:07,912 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 33 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 00:06:07,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-04-15 00:06:07,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2022-04-15 00:06:07,919 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 00:06:07,919 INFO L82 GeneralOperation]: Start isEquivalent. First operand 28 states. Second operand has 28 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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) [2022-04-15 00:06:07,919 INFO L74 IsIncluded]: Start isIncluded. First operand 28 states. Second operand has 28 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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) [2022-04-15 00:06:07,919 INFO L87 Difference]: Start difference. First operand 28 states. Second operand has 28 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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) [2022-04-15 00:06:07,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:07,920 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-04-15 00:06:07,920 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2022-04-15 00:06:07,921 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:07,921 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:07,921 INFO L74 IsIncluded]: Start isIncluded. First operand has 28 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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 28 states. [2022-04-15 00:06:07,921 INFO L87 Difference]: Start difference. First operand has 28 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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 28 states. [2022-04-15 00:06:07,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:07,922 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2022-04-15 00:06:07,922 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2022-04-15 00:06:07,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:07,923 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:07,923 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 00:06:07,923 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 00:06:07,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 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) [2022-04-15 00:06:07,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2022-04-15 00:06:07,924 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 19 [2022-04-15 00:06:07,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 00:06:07,924 INFO L478 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2022-04-15 00:06:07,924 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 11 states have internal predecessors, (27), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:07,924 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2022-04-15 00:06:07,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-04-15 00:06:07,925 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:06:07,925 INFO L499 BasicCegarLoop]: trace histogram [8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:06:07,941 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-15 00:06:08,133 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 [2022-04-15 00:06:08,133 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:06:08,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:06:08,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1851728790, now seen corresponding path program 3 times [2022-04-15 00:06:08,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:06:08,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784998718] [2022-04-15 00:06:08,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:06:08,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:06:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:08,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:06:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:08,327 INFO L290 TraceCheckUtils]: 0: Hoare triple {722#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {706#true} is VALID [2022-04-15 00:06:08,328 INFO L290 TraceCheckUtils]: 1: Hoare triple {706#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,328 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {706#true} {706#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,328 INFO L272 TraceCheckUtils]: 0: Hoare triple {706#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {722#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:06:08,328 INFO L290 TraceCheckUtils]: 1: Hoare triple {722#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {706#true} is VALID [2022-04-15 00:06:08,329 INFO L290 TraceCheckUtils]: 2: Hoare triple {706#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,329 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {706#true} {706#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,329 INFO L272 TraceCheckUtils]: 4: Hoare triple {706#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,329 INFO L290 TraceCheckUtils]: 5: Hoare triple {706#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {711#(= main_~sn~0 0)} is VALID [2022-04-15 00:06:08,330 INFO L290 TraceCheckUtils]: 6: Hoare triple {711#(= main_~sn~0 0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {712#(and (<= main_~sn~0 2) (<= 2 main_~sn~0))} is VALID [2022-04-15 00:06:08,330 INFO L290 TraceCheckUtils]: 7: Hoare triple {712#(and (<= main_~sn~0 2) (<= 2 main_~sn~0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {712#(and (<= main_~sn~0 2) (<= 2 main_~sn~0))} is VALID [2022-04-15 00:06:08,331 INFO L290 TraceCheckUtils]: 8: Hoare triple {712#(and (<= main_~sn~0 2) (<= 2 main_~sn~0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {713#(and (<= 4 main_~sn~0) (<= main_~sn~0 4))} is VALID [2022-04-15 00:06:08,331 INFO L290 TraceCheckUtils]: 9: Hoare triple {713#(and (<= 4 main_~sn~0) (<= main_~sn~0 4))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {713#(and (<= 4 main_~sn~0) (<= main_~sn~0 4))} is VALID [2022-04-15 00:06:08,331 INFO L290 TraceCheckUtils]: 10: Hoare triple {713#(and (<= 4 main_~sn~0) (<= main_~sn~0 4))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {714#(and (<= 6 main_~sn~0) (<= main_~sn~0 6))} is VALID [2022-04-15 00:06:08,332 INFO L290 TraceCheckUtils]: 11: Hoare triple {714#(and (<= 6 main_~sn~0) (<= main_~sn~0 6))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {714#(and (<= 6 main_~sn~0) (<= main_~sn~0 6))} is VALID [2022-04-15 00:06:08,332 INFO L290 TraceCheckUtils]: 12: Hoare triple {714#(and (<= 6 main_~sn~0) (<= main_~sn~0 6))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {715#(and (<= 8 main_~sn~0) (<= main_~sn~0 8))} is VALID [2022-04-15 00:06:08,333 INFO L290 TraceCheckUtils]: 13: Hoare triple {715#(and (<= 8 main_~sn~0) (<= main_~sn~0 8))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {715#(and (<= 8 main_~sn~0) (<= main_~sn~0 8))} is VALID [2022-04-15 00:06:08,333 INFO L290 TraceCheckUtils]: 14: Hoare triple {715#(and (<= 8 main_~sn~0) (<= main_~sn~0 8))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {716#(and (<= main_~sn~0 10) (<= 10 main_~sn~0))} is VALID [2022-04-15 00:06:08,334 INFO L290 TraceCheckUtils]: 15: Hoare triple {716#(and (<= main_~sn~0 10) (<= 10 main_~sn~0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {716#(and (<= main_~sn~0 10) (<= 10 main_~sn~0))} is VALID [2022-04-15 00:06:08,334 INFO L290 TraceCheckUtils]: 16: Hoare triple {716#(and (<= main_~sn~0 10) (<= 10 main_~sn~0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {717#(and (<= 12 main_~sn~0) (<= main_~sn~0 12))} is VALID [2022-04-15 00:06:08,335 INFO L290 TraceCheckUtils]: 17: Hoare triple {717#(and (<= 12 main_~sn~0) (<= main_~sn~0 12))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {717#(and (<= 12 main_~sn~0) (<= main_~sn~0 12))} is VALID [2022-04-15 00:06:08,335 INFO L290 TraceCheckUtils]: 18: Hoare triple {717#(and (<= 12 main_~sn~0) (<= main_~sn~0 12))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {718#(and (<= 14 main_~sn~0) (<= main_~sn~0 14))} is VALID [2022-04-15 00:06:08,336 INFO L290 TraceCheckUtils]: 19: Hoare triple {718#(and (<= 14 main_~sn~0) (<= main_~sn~0 14))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {718#(and (<= 14 main_~sn~0) (<= main_~sn~0 14))} is VALID [2022-04-15 00:06:08,336 INFO L290 TraceCheckUtils]: 20: Hoare triple {718#(and (<= 14 main_~sn~0) (<= main_~sn~0 14))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} is VALID [2022-04-15 00:06:08,336 INFO L290 TraceCheckUtils]: 21: Hoare triple {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} is VALID [2022-04-15 00:06:08,337 INFO L290 TraceCheckUtils]: 22: Hoare triple {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} is VALID [2022-04-15 00:06:08,337 INFO L272 TraceCheckUtils]: 23: Hoare triple {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {720#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-15 00:06:08,338 INFO L290 TraceCheckUtils]: 24: Hoare triple {720#(not (= |__VERIFIER_assert_#in~cond| 0))} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {721#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-15 00:06:08,338 INFO L290 TraceCheckUtils]: 25: Hoare triple {721#(not (= __VERIFIER_assert_~cond 0))} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {707#false} is VALID [2022-04-15 00:06:08,338 INFO L290 TraceCheckUtils]: 26: Hoare triple {707#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#false} is VALID [2022-04-15 00:06:08,339 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:08,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:06:08,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784998718] [2022-04-15 00:06:08,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784998718] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 00:06:08,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [522506240] [2022-04-15 00:06:08,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-04-15 00:06:08,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 00:06:08,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 00:06:08,340 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-15 00:06:08,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-15 00:06:08,372 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-04-15 00:06:08,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-15 00:06:08,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 21 conjunts are in the unsatisfiable core [2022-04-15 00:06:08,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:08,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 00:06:08,641 INFO L272 TraceCheckUtils]: 0: Hoare triple {706#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,641 INFO L290 TraceCheckUtils]: 1: Hoare triple {706#true} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {706#true} is VALID [2022-04-15 00:06:08,641 INFO L290 TraceCheckUtils]: 2: Hoare triple {706#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,641 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {706#true} {706#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,641 INFO L272 TraceCheckUtils]: 4: Hoare triple {706#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,642 INFO L290 TraceCheckUtils]: 5: Hoare triple {706#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {711#(= main_~sn~0 0)} is VALID [2022-04-15 00:06:08,642 INFO L290 TraceCheckUtils]: 6: Hoare triple {711#(= main_~sn~0 0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {712#(and (<= main_~sn~0 2) (<= 2 main_~sn~0))} is VALID [2022-04-15 00:06:08,643 INFO L290 TraceCheckUtils]: 7: Hoare triple {712#(and (<= main_~sn~0 2) (<= 2 main_~sn~0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {712#(and (<= main_~sn~0 2) (<= 2 main_~sn~0))} is VALID [2022-04-15 00:06:08,643 INFO L290 TraceCheckUtils]: 8: Hoare triple {712#(and (<= main_~sn~0 2) (<= 2 main_~sn~0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {713#(and (<= 4 main_~sn~0) (<= main_~sn~0 4))} is VALID [2022-04-15 00:06:08,644 INFO L290 TraceCheckUtils]: 9: Hoare triple {713#(and (<= 4 main_~sn~0) (<= main_~sn~0 4))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {713#(and (<= 4 main_~sn~0) (<= main_~sn~0 4))} is VALID [2022-04-15 00:06:08,644 INFO L290 TraceCheckUtils]: 10: Hoare triple {713#(and (<= 4 main_~sn~0) (<= main_~sn~0 4))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {714#(and (<= 6 main_~sn~0) (<= main_~sn~0 6))} is VALID [2022-04-15 00:06:08,645 INFO L290 TraceCheckUtils]: 11: Hoare triple {714#(and (<= 6 main_~sn~0) (<= main_~sn~0 6))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {714#(and (<= 6 main_~sn~0) (<= main_~sn~0 6))} is VALID [2022-04-15 00:06:08,645 INFO L290 TraceCheckUtils]: 12: Hoare triple {714#(and (<= 6 main_~sn~0) (<= main_~sn~0 6))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {715#(and (<= 8 main_~sn~0) (<= main_~sn~0 8))} is VALID [2022-04-15 00:06:08,645 INFO L290 TraceCheckUtils]: 13: Hoare triple {715#(and (<= 8 main_~sn~0) (<= main_~sn~0 8))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {715#(and (<= 8 main_~sn~0) (<= main_~sn~0 8))} is VALID [2022-04-15 00:06:08,646 INFO L290 TraceCheckUtils]: 14: Hoare triple {715#(and (<= 8 main_~sn~0) (<= main_~sn~0 8))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {716#(and (<= main_~sn~0 10) (<= 10 main_~sn~0))} is VALID [2022-04-15 00:06:08,646 INFO L290 TraceCheckUtils]: 15: Hoare triple {716#(and (<= main_~sn~0 10) (<= 10 main_~sn~0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {716#(and (<= main_~sn~0 10) (<= 10 main_~sn~0))} is VALID [2022-04-15 00:06:08,647 INFO L290 TraceCheckUtils]: 16: Hoare triple {716#(and (<= main_~sn~0 10) (<= 10 main_~sn~0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {717#(and (<= 12 main_~sn~0) (<= main_~sn~0 12))} is VALID [2022-04-15 00:06:08,647 INFO L290 TraceCheckUtils]: 17: Hoare triple {717#(and (<= 12 main_~sn~0) (<= main_~sn~0 12))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {717#(and (<= 12 main_~sn~0) (<= main_~sn~0 12))} is VALID [2022-04-15 00:06:08,648 INFO L290 TraceCheckUtils]: 18: Hoare triple {717#(and (<= 12 main_~sn~0) (<= main_~sn~0 12))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {718#(and (<= 14 main_~sn~0) (<= main_~sn~0 14))} is VALID [2022-04-15 00:06:08,648 INFO L290 TraceCheckUtils]: 19: Hoare triple {718#(and (<= 14 main_~sn~0) (<= main_~sn~0 14))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {718#(and (<= 14 main_~sn~0) (<= main_~sn~0 14))} is VALID [2022-04-15 00:06:08,648 INFO L290 TraceCheckUtils]: 20: Hoare triple {718#(and (<= 14 main_~sn~0) (<= main_~sn~0 14))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} is VALID [2022-04-15 00:06:08,649 INFO L290 TraceCheckUtils]: 21: Hoare triple {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} is VALID [2022-04-15 00:06:08,649 INFO L290 TraceCheckUtils]: 22: Hoare triple {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} is VALID [2022-04-15 00:06:08,650 INFO L272 TraceCheckUtils]: 23: Hoare triple {719#(and (<= main_~sn~0 16) (< 15 main_~sn~0))} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {795#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 00:06:08,650 INFO L290 TraceCheckUtils]: 24: Hoare triple {795#(<= 1 |__VERIFIER_assert_#in~cond|)} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {799#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 00:06:08,651 INFO L290 TraceCheckUtils]: 25: Hoare triple {799#(<= 1 __VERIFIER_assert_~cond)} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {707#false} is VALID [2022-04-15 00:06:08,651 INFO L290 TraceCheckUtils]: 26: Hoare triple {707#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#false} is VALID [2022-04-15 00:06:08,651 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:08,651 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-15 00:06:08,943 INFO L290 TraceCheckUtils]: 26: Hoare triple {707#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#false} is VALID [2022-04-15 00:06:08,944 INFO L290 TraceCheckUtils]: 25: Hoare triple {799#(<= 1 __VERIFIER_assert_~cond)} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {707#false} is VALID [2022-04-15 00:06:08,944 INFO L290 TraceCheckUtils]: 24: Hoare triple {795#(<= 1 |__VERIFIER_assert_#in~cond|)} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {799#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-15 00:06:08,945 INFO L272 TraceCheckUtils]: 23: Hoare triple {815#(or (= main_~sn~0 0) (= 16 main_~sn~0))} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {795#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-15 00:06:08,946 INFO L290 TraceCheckUtils]: 22: Hoare triple {815#(or (= main_~sn~0 0) (= 16 main_~sn~0))} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {815#(or (= main_~sn~0 0) (= 16 main_~sn~0))} is VALID [2022-04-15 00:06:08,946 INFO L290 TraceCheckUtils]: 21: Hoare triple {815#(or (= main_~sn~0 0) (= 16 main_~sn~0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {815#(or (= main_~sn~0 0) (= 16 main_~sn~0))} is VALID [2022-04-15 00:06:08,946 INFO L290 TraceCheckUtils]: 20: Hoare triple {825#(or (= (+ 2 main_~sn~0) 16) (= (+ 2 main_~sn~0) 0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {815#(or (= main_~sn~0 0) (= 16 main_~sn~0))} is VALID [2022-04-15 00:06:08,947 INFO L290 TraceCheckUtils]: 19: Hoare triple {825#(or (= (+ 2 main_~sn~0) 16) (= (+ 2 main_~sn~0) 0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {825#(or (= (+ 2 main_~sn~0) 16) (= (+ 2 main_~sn~0) 0))} is VALID [2022-04-15 00:06:08,948 INFO L290 TraceCheckUtils]: 18: Hoare triple {832#(or (= (+ main_~sn~0 4) 16) (= (+ main_~sn~0 4) 0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {825#(or (= (+ 2 main_~sn~0) 16) (= (+ 2 main_~sn~0) 0))} is VALID [2022-04-15 00:06:08,948 INFO L290 TraceCheckUtils]: 17: Hoare triple {832#(or (= (+ main_~sn~0 4) 16) (= (+ main_~sn~0 4) 0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {832#(or (= (+ main_~sn~0 4) 16) (= (+ main_~sn~0 4) 0))} is VALID [2022-04-15 00:06:08,949 INFO L290 TraceCheckUtils]: 16: Hoare triple {839#(or (= (+ 6 main_~sn~0) 16) (= (+ 6 main_~sn~0) 0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {832#(or (= (+ main_~sn~0 4) 16) (= (+ main_~sn~0 4) 0))} is VALID [2022-04-15 00:06:08,949 INFO L290 TraceCheckUtils]: 15: Hoare triple {839#(or (= (+ 6 main_~sn~0) 16) (= (+ 6 main_~sn~0) 0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {839#(or (= (+ 6 main_~sn~0) 16) (= (+ 6 main_~sn~0) 0))} is VALID [2022-04-15 00:06:08,950 INFO L290 TraceCheckUtils]: 14: Hoare triple {846#(or (= (+ main_~sn~0 8) 0) (= (+ main_~sn~0 8) 16))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {839#(or (= (+ 6 main_~sn~0) 16) (= (+ 6 main_~sn~0) 0))} is VALID [2022-04-15 00:06:08,950 INFO L290 TraceCheckUtils]: 13: Hoare triple {846#(or (= (+ main_~sn~0 8) 0) (= (+ main_~sn~0 8) 16))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {846#(or (= (+ main_~sn~0 8) 0) (= (+ main_~sn~0 8) 16))} is VALID [2022-04-15 00:06:08,951 INFO L290 TraceCheckUtils]: 12: Hoare triple {853#(or (= 16 (+ main_~sn~0 10)) (= (+ main_~sn~0 10) 0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {846#(or (= (+ main_~sn~0 8) 0) (= (+ main_~sn~0 8) 16))} is VALID [2022-04-15 00:06:08,951 INFO L290 TraceCheckUtils]: 11: Hoare triple {853#(or (= 16 (+ main_~sn~0 10)) (= (+ main_~sn~0 10) 0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {853#(or (= 16 (+ main_~sn~0 10)) (= (+ main_~sn~0 10) 0))} is VALID [2022-04-15 00:06:08,952 INFO L290 TraceCheckUtils]: 10: Hoare triple {860#(or (= (+ main_~sn~0 12) 16) (= (+ main_~sn~0 12) 0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {853#(or (= 16 (+ main_~sn~0 10)) (= (+ main_~sn~0 10) 0))} is VALID [2022-04-15 00:06:08,952 INFO L290 TraceCheckUtils]: 9: Hoare triple {860#(or (= (+ main_~sn~0 12) 16) (= (+ main_~sn~0 12) 0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {860#(or (= (+ main_~sn~0 12) 16) (= (+ main_~sn~0 12) 0))} is VALID [2022-04-15 00:06:08,953 INFO L290 TraceCheckUtils]: 8: Hoare triple {867#(or (= (+ 14 main_~sn~0) 16) (= (+ 14 main_~sn~0) 0))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {860#(or (= (+ main_~sn~0 12) 16) (= (+ main_~sn~0 12) 0))} is VALID [2022-04-15 00:06:08,953 INFO L290 TraceCheckUtils]: 7: Hoare triple {867#(or (= (+ 14 main_~sn~0) 16) (= (+ 14 main_~sn~0) 0))} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {867#(or (= (+ 14 main_~sn~0) 16) (= (+ 14 main_~sn~0) 0))} is VALID [2022-04-15 00:06:08,954 INFO L290 TraceCheckUtils]: 6: Hoare triple {874#(or (= (+ 16 main_~sn~0) 0) (= 16 (+ 16 main_~sn~0)))} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {867#(or (= (+ 14 main_~sn~0) 16) (= (+ 14 main_~sn~0) 0))} is VALID [2022-04-15 00:06:08,954 INFO L290 TraceCheckUtils]: 5: Hoare triple {706#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {874#(or (= (+ 16 main_~sn~0) 0) (= 16 (+ 16 main_~sn~0)))} is VALID [2022-04-15 00:06:08,954 INFO L272 TraceCheckUtils]: 4: Hoare triple {706#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,954 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {706#true} {706#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,954 INFO L290 TraceCheckUtils]: 2: Hoare triple {706#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,955 INFO L290 TraceCheckUtils]: 1: Hoare triple {706#true} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {706#true} is VALID [2022-04-15 00:06:08,955 INFO L272 TraceCheckUtils]: 0: Hoare triple {706#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {706#true} is VALID [2022-04-15 00:06:08,955 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:08,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [522506240] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-15 00:06:08,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-04-15 00:06:08,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 25 [2022-04-15 00:06:08,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423688435] [2022-04-15 00:06:08,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-04-15 00:06:08,956 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.76) internal successors, (44), 22 states have internal predecessors, (44), 3 states have call successors, (6), 4 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 27 [2022-04-15 00:06:08,956 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 00:06:08,956 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 25 states, 25 states have (on average 1.76) internal successors, (44), 22 states have internal predecessors, (44), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:08,993 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:08,994 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-04-15 00:06:08,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 00:06:08,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-04-15 00:06:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=0, NotChecked=0, Total=600 [2022-04-15 00:06:08,995 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 25 states, 25 states have (on average 1.76) internal successors, (44), 22 states have internal predecessors, (44), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:09,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:09,704 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2022-04-15 00:06:09,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-04-15 00:06:09,704 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.76) internal successors, (44), 22 states have internal predecessors, (44), 3 states have call successors, (6), 4 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 27 [2022-04-15 00:06:09,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 00:06:09,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.76) internal successors, (44), 22 states have internal predecessors, (44), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:09,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 35 transitions. [2022-04-15 00:06:09,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 25 states have (on average 1.76) internal successors, (44), 22 states have internal predecessors, (44), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:09,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 35 transitions. [2022-04-15 00:06:09,707 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 14 states and 35 transitions. [2022-04-15 00:06:09,730 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:09,731 INFO L225 Difference]: With dead ends: 35 [2022-04-15 00:06:09,731 INFO L226 Difference]: Without dead ends: 30 [2022-04-15 00:06:09,732 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 42 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=1142, Unknown=0, NotChecked=0, Total=1260 [2022-04-15 00:06:09,732 INFO L913 BasicCegarLoop]: 18 mSDtfsCounter, 18 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 374 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-04-15 00:06:09,733 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 105 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 374 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-04-15 00:06:09,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-04-15 00:06:09,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-04-15 00:06:09,756 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 00:06:09,756 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand has 30 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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) [2022-04-15 00:06:09,757 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand has 30 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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) [2022-04-15 00:06:09,757 INFO L87 Difference]: Start difference. First operand 30 states. Second operand has 30 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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) [2022-04-15 00:06:09,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:09,758 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2022-04-15 00:06:09,758 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2022-04-15 00:06:09,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:09,758 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:09,758 INFO L74 IsIncluded]: Start isIncluded. First operand has 30 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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 30 states. [2022-04-15 00:06:09,758 INFO L87 Difference]: Start difference. First operand has 30 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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 30 states. [2022-04-15 00:06:09,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:09,759 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2022-04-15 00:06:09,759 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2022-04-15 00:06:09,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:09,760 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:09,760 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 00:06:09,760 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 00:06:09,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 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) [2022-04-15 00:06:09,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2022-04-15 00:06:09,761 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 27 [2022-04-15 00:06:09,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 00:06:09,761 INFO L478 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2022-04-15 00:06:09,761 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.76) internal successors, (44), 22 states have internal predecessors, (44), 3 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:09,761 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2022-04-15 00:06:09,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-04-15 00:06:09,761 INFO L491 BasicCegarLoop]: Found error trace [2022-04-15 00:06:09,761 INFO L499 BasicCegarLoop]: trace histogram [9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-15 00:06:09,778 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-04-15 00:06:09,974 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 00:06:09,975 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-15 00:06:09,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-15 00:06:09,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1988665612, now seen corresponding path program 4 times [2022-04-15 00:06:09,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-15 00:06:09,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282040764] [2022-04-15 00:06:09,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-15 00:06:09,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-15 00:06:10,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:10,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-15 00:06:10,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:10,114 INFO L290 TraceCheckUtils]: 0: Hoare triple {1090#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {1076#true} is VALID [2022-04-15 00:06:10,115 INFO L290 TraceCheckUtils]: 1: Hoare triple {1076#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1076#true} is VALID [2022-04-15 00:06:10,115 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {1076#true} {1076#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1076#true} is VALID [2022-04-15 00:06:10,115 INFO L272 TraceCheckUtils]: 0: Hoare triple {1076#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1090#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-15 00:06:10,115 INFO L290 TraceCheckUtils]: 1: Hoare triple {1090#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {1076#true} is VALID [2022-04-15 00:06:10,116 INFO L290 TraceCheckUtils]: 2: Hoare triple {1076#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1076#true} is VALID [2022-04-15 00:06:10,116 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1076#true} {1076#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1076#true} is VALID [2022-04-15 00:06:10,116 INFO L272 TraceCheckUtils]: 4: Hoare triple {1076#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1076#true} is VALID [2022-04-15 00:06:10,116 INFO L290 TraceCheckUtils]: 5: Hoare triple {1076#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {1081#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-15 00:06:10,116 INFO L290 TraceCheckUtils]: 6: Hoare triple {1081#(= (+ (- 1) main_~i~0) 0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1081#(= (+ (- 1) main_~i~0) 0)} is VALID [2022-04-15 00:06:10,117 INFO L290 TraceCheckUtils]: 7: Hoare triple {1081#(= (+ (- 1) main_~i~0) 0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1082#(<= 2 main_~i~0)} is VALID [2022-04-15 00:06:10,117 INFO L290 TraceCheckUtils]: 8: Hoare triple {1082#(<= 2 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1082#(<= 2 main_~i~0)} is VALID [2022-04-15 00:06:10,118 INFO L290 TraceCheckUtils]: 9: Hoare triple {1082#(<= 2 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1083#(<= 3 main_~i~0)} is VALID [2022-04-15 00:06:10,118 INFO L290 TraceCheckUtils]: 10: Hoare triple {1083#(<= 3 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1083#(<= 3 main_~i~0)} is VALID [2022-04-15 00:06:10,118 INFO L290 TraceCheckUtils]: 11: Hoare triple {1083#(<= 3 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1084#(<= 4 main_~i~0)} is VALID [2022-04-15 00:06:10,118 INFO L290 TraceCheckUtils]: 12: Hoare triple {1084#(<= 4 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1084#(<= 4 main_~i~0)} is VALID [2022-04-15 00:06:10,119 INFO L290 TraceCheckUtils]: 13: Hoare triple {1084#(<= 4 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1085#(<= 5 main_~i~0)} is VALID [2022-04-15 00:06:10,119 INFO L290 TraceCheckUtils]: 14: Hoare triple {1085#(<= 5 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1085#(<= 5 main_~i~0)} is VALID [2022-04-15 00:06:10,120 INFO L290 TraceCheckUtils]: 15: Hoare triple {1085#(<= 5 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1086#(<= 6 main_~i~0)} is VALID [2022-04-15 00:06:10,120 INFO L290 TraceCheckUtils]: 16: Hoare triple {1086#(<= 6 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1086#(<= 6 main_~i~0)} is VALID [2022-04-15 00:06:10,120 INFO L290 TraceCheckUtils]: 17: Hoare triple {1086#(<= 6 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1087#(<= 7 main_~i~0)} is VALID [2022-04-15 00:06:10,121 INFO L290 TraceCheckUtils]: 18: Hoare triple {1087#(<= 7 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1087#(<= 7 main_~i~0)} is VALID [2022-04-15 00:06:10,121 INFO L290 TraceCheckUtils]: 19: Hoare triple {1087#(<= 7 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1088#(<= 8 main_~i~0)} is VALID [2022-04-15 00:06:10,121 INFO L290 TraceCheckUtils]: 20: Hoare triple {1088#(<= 8 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1088#(<= 8 main_~i~0)} is VALID [2022-04-15 00:06:10,122 INFO L290 TraceCheckUtils]: 21: Hoare triple {1088#(<= 8 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1089#(<= 9 main_~i~0)} is VALID [2022-04-15 00:06:10,122 INFO L290 TraceCheckUtils]: 22: Hoare triple {1089#(<= 9 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1077#false} is VALID [2022-04-15 00:06:10,122 INFO L290 TraceCheckUtils]: 23: Hoare triple {1077#false} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1077#false} is VALID [2022-04-15 00:06:10,122 INFO L290 TraceCheckUtils]: 24: Hoare triple {1077#false} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {1077#false} is VALID [2022-04-15 00:06:10,122 INFO L272 TraceCheckUtils]: 25: Hoare triple {1077#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {1077#false} is VALID [2022-04-15 00:06:10,122 INFO L290 TraceCheckUtils]: 26: Hoare triple {1077#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1077#false} is VALID [2022-04-15 00:06:10,122 INFO L290 TraceCheckUtils]: 27: Hoare triple {1077#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {1077#false} is VALID [2022-04-15 00:06:10,123 INFO L290 TraceCheckUtils]: 28: Hoare triple {1077#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1077#false} is VALID [2022-04-15 00:06:10,123 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 66 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:10,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-15 00:06:10,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282040764] [2022-04-15 00:06:10,123 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282040764] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-15 00:06:10,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977746465] [2022-04-15 00:06:10,123 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-04-15 00:06:10,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 00:06:10,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-15 00:06:10,131 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-15 00:06:10,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-15 00:06:10,159 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-04-15 00:06:10,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-15 00:06:10,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 10 conjunts are in the unsatisfiable core [2022-04-15 00:06:10,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-15 00:06:10,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-15 00:06:10,285 INFO L272 TraceCheckUtils]: 0: Hoare triple {1076#true} [45] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1076#true} is VALID [2022-04-15 00:06:10,286 INFO L290 TraceCheckUtils]: 1: Hoare triple {1076#true} [47] 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|) (= |v_#NULL.base_1| 0) (= (select |v_#length_1| 2) 10) (= (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] {1076#true} is VALID [2022-04-15 00:06:10,286 INFO L290 TraceCheckUtils]: 2: Hoare triple {1076#true} [50] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1076#true} is VALID [2022-04-15 00:06:10,286 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1076#true} {1076#true} [63] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1076#true} is VALID [2022-04-15 00:06:10,286 INFO L272 TraceCheckUtils]: 4: Hoare triple {1076#true} [46] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1076#true} is VALID [2022-04-15 00:06:10,286 INFO L290 TraceCheckUtils]: 5: Hoare triple {1076#true} [49] mainENTRY-->L24-3: Formula: (and (= v_main_~i~0_3 1) (= v_main_~sn~0_2 0)) InVars {} OutVars{main_~sn~0=v_main_~sn~0_2, main_~i~0=v_main_~i~0_3} AuxVars[] AssignedVars[main_~sn~0, main_~i~0] {1109#(<= 1 main_~i~0)} is VALID [2022-04-15 00:06:10,287 INFO L290 TraceCheckUtils]: 6: Hoare triple {1109#(<= 1 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1109#(<= 1 main_~i~0)} is VALID [2022-04-15 00:06:10,287 INFO L290 TraceCheckUtils]: 7: Hoare triple {1109#(<= 1 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1082#(<= 2 main_~i~0)} is VALID [2022-04-15 00:06:10,288 INFO L290 TraceCheckUtils]: 8: Hoare triple {1082#(<= 2 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1082#(<= 2 main_~i~0)} is VALID [2022-04-15 00:06:10,288 INFO L290 TraceCheckUtils]: 9: Hoare triple {1082#(<= 2 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1083#(<= 3 main_~i~0)} is VALID [2022-04-15 00:06:10,288 INFO L290 TraceCheckUtils]: 10: Hoare triple {1083#(<= 3 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1083#(<= 3 main_~i~0)} is VALID [2022-04-15 00:06:10,289 INFO L290 TraceCheckUtils]: 11: Hoare triple {1083#(<= 3 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1084#(<= 4 main_~i~0)} is VALID [2022-04-15 00:06:10,289 INFO L290 TraceCheckUtils]: 12: Hoare triple {1084#(<= 4 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1084#(<= 4 main_~i~0)} is VALID [2022-04-15 00:06:10,289 INFO L290 TraceCheckUtils]: 13: Hoare triple {1084#(<= 4 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1085#(<= 5 main_~i~0)} is VALID [2022-04-15 00:06:10,290 INFO L290 TraceCheckUtils]: 14: Hoare triple {1085#(<= 5 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1085#(<= 5 main_~i~0)} is VALID [2022-04-15 00:06:10,290 INFO L290 TraceCheckUtils]: 15: Hoare triple {1085#(<= 5 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1086#(<= 6 main_~i~0)} is VALID [2022-04-15 00:06:10,290 INFO L290 TraceCheckUtils]: 16: Hoare triple {1086#(<= 6 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1086#(<= 6 main_~i~0)} is VALID [2022-04-15 00:06:10,291 INFO L290 TraceCheckUtils]: 17: Hoare triple {1086#(<= 6 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1087#(<= 7 main_~i~0)} is VALID [2022-04-15 00:06:10,291 INFO L290 TraceCheckUtils]: 18: Hoare triple {1087#(<= 7 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1087#(<= 7 main_~i~0)} is VALID [2022-04-15 00:06:10,291 INFO L290 TraceCheckUtils]: 19: Hoare triple {1087#(<= 7 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1088#(<= 8 main_~i~0)} is VALID [2022-04-15 00:06:10,292 INFO L290 TraceCheckUtils]: 20: Hoare triple {1088#(<= 8 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1088#(<= 8 main_~i~0)} is VALID [2022-04-15 00:06:10,292 INFO L290 TraceCheckUtils]: 21: Hoare triple {1088#(<= 8 main_~i~0)} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1089#(<= 9 main_~i~0)} is VALID [2022-04-15 00:06:10,293 INFO L290 TraceCheckUtils]: 22: Hoare triple {1089#(<= 9 main_~i~0)} [53] L24-3-->L24-2: Formula: (and (<= v_main_~i~0_7 8) (= v_main_~sn~0_3 (+ v_main_~sn~0_4 2))) InVars {main_~sn~0=v_main_~sn~0_4, main_~i~0=v_main_~i~0_7} OutVars{main_~sn~0=v_main_~sn~0_3, main_~i~0=v_main_~i~0_7} AuxVars[] AssignedVars[main_~sn~0] {1077#false} is VALID [2022-04-15 00:06:10,293 INFO L290 TraceCheckUtils]: 23: Hoare triple {1077#false} [55] L24-2-->L24-3: Formula: (= v_main_~i~0_1 (+ v_main_~i~0_2 1)) InVars {main_~i~0=v_main_~i~0_2} OutVars{main_~i~0=v_main_~i~0_1, main_#t~post1=|v_main_#t~post1_1|} AuxVars[] AssignedVars[main_#t~post1, main_~i~0] {1077#false} is VALID [2022-04-15 00:06:10,293 INFO L290 TraceCheckUtils]: 24: Hoare triple {1077#false} [52] L24-3-->L24-4: Formula: (not (<= v_main_~i~0_6 8)) InVars {main_~i~0=v_main_~i~0_6} OutVars{main_~i~0=v_main_~i~0_6} AuxVars[] AssignedVars[] {1077#false} is VALID [2022-04-15 00:06:10,293 INFO L272 TraceCheckUtils]: 25: Hoare triple {1077#false} [54] L24-4-->__VERIFIER_assertENTRY: Formula: (= (ite (or (= v_main_~sn~0_5 16) (= v_main_~sn~0_5 0)) 1 0) |v___VERIFIER_assert_#in~condInParam_1|) InVars {main_~sn~0=v_main_~sn~0_5} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~sn~0] {1077#false} is VALID [2022-04-15 00:06:10,293 INFO L290 TraceCheckUtils]: 26: Hoare triple {1077#false} [57] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |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_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {1077#false} is VALID [2022-04-15 00:06:10,293 INFO L290 TraceCheckUtils]: 27: Hoare triple {1077#false} [58] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {1077#false} is VALID [2022-04-15 00:06:10,293 INFO L290 TraceCheckUtils]: 28: Hoare triple {1077#false} [60] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1077#false} is VALID [2022-04-15 00:06:10,293 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-15 00:06:10,293 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-15 00:06:10,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [977746465] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-15 00:06:10,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-15 00:06:10,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 13 [2022-04-15 00:06:10,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641042643] [2022-04-15 00:06:10,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-15 00:06:10,294 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (3), 2 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 29 [2022-04-15 00:06:10,294 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-15 00:06:10,295 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:10,311 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:10,311 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-04-15 00:06:10,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-15 00:06:10,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-04-15 00:06:10,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-04-15 00:06:10,312 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:10,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:10,383 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2022-04-15 00:06:10,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-04-15 00:06:10,383 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (3), 2 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 29 [2022-04-15 00:06:10,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-15 00:06:10,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:10,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 30 transitions. [2022-04-15 00:06:10,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:10,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 30 transitions. [2022-04-15 00:06:10,385 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 11 states and 30 transitions. [2022-04-15 00:06:10,406 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-15 00:06:10,406 INFO L225 Difference]: With dead ends: 30 [2022-04-15 00:06:10,406 INFO L226 Difference]: Without dead ends: 0 [2022-04-15 00:06:10,407 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=96, Unknown=0, NotChecked=0, Total=156 [2022-04-15 00:06:10,407 INFO L913 BasicCegarLoop]: 6 mSDtfsCounter, 0 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-15 00:06:10,407 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 11 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-15 00:06:10,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-15 00:06:10,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-15 00:06:10,408 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-15 00:06:10,408 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-15 00:06:10,408 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-15 00:06:10,408 INFO L87 Difference]: Start difference. First operand 0 states. Second operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-15 00:06:10,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:10,408 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 00:06:10,408 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 00:06:10,408 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:10,408 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:10,408 INFO L74 IsIncluded]: Start isIncluded. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-15 00:06:10,408 INFO L87 Difference]: Start difference. First operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand 0 states. [2022-04-15 00:06:10,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-15 00:06:10,408 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-15 00:06:10,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 00:06:10,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:10,409 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-15 00:06:10,409 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-15 00:06:10,409 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-15 00:06:10,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-04-15 00:06:10,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-15 00:06:10,409 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2022-04-15 00:06:10,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-15 00:06:10,409 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-15 00:06:10,409 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 11 states have internal predecessors, (25), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-15 00:06:10,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-15 00:06:10,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-15 00:06:10,411 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-15 00:06:10,440 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-15 00:06:10,625 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-15 00:06:10,627 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-15 00:06:10,725 INFO L878 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-15 00:06:10,725 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-15 00:06:10,725 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-15 00:06:10,725 INFO L885 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-15 00:06:10,725 INFO L885 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-15 00:06:10,725 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-15 00:06:10,725 INFO L882 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-15 00:06:10,725 INFO L885 garLoopResultBuilder]: At program point mainENTRY(lines 22 28) the Hoare annotation is: true [2022-04-15 00:06:10,725 INFO L878 garLoopResultBuilder]: At program point L24-3(lines 24 26) the Hoare annotation is: (or (and (<= main_~sn~0 16) (<= 9 main_~i~0) (< 15 main_~sn~0)) (and (<= 6 main_~sn~0) (<= main_~sn~0 6) (<= main_~i~0 4) (<= 4 main_~i~0)) (and (= main_~sn~0 0) (= main_~i~0 1)) (and (<= main_~i~0 7) (<= 12 main_~sn~0) (<= main_~sn~0 12) (<= 7 main_~i~0)) (and (<= 14 main_~sn~0) (<= 8 main_~i~0) (<= main_~i~0 8) (<= main_~sn~0 14)) (and (<= main_~sn~0 10) (<= 10 main_~sn~0) (<= main_~i~0 6) (<= 6 main_~i~0)) (and (<= 4 main_~sn~0) (<= main_~sn~0 4) (<= 3 main_~i~0) (<= main_~i~0 3)) (and (<= 2 main_~i~0) (<= main_~sn~0 2) (<= main_~i~0 2) (<= 2 main_~sn~0)) (and (<= main_~i~0 5) (<= 8 main_~sn~0) (<= 5 main_~i~0) (<= main_~sn~0 8))) [2022-04-15 00:06:10,725 INFO L878 garLoopResultBuilder]: At program point L24-4(lines 24 26) the Hoare annotation is: (and (<= main_~sn~0 16) (< 15 main_~sn~0)) [2022-04-15 00:06:10,725 INFO L882 garLoopResultBuilder]: For program point L24-2(lines 24 26) no Hoare annotation was computed. [2022-04-15 00:06:10,725 INFO L882 garLoopResultBuilder]: For program point mainFINAL(lines 22 28) no Hoare annotation was computed. [2022-04-15 00:06:10,725 INFO L882 garLoopResultBuilder]: For program point mainEXIT(lines 22 28) no Hoare annotation was computed. [2022-04-15 00:06:10,726 INFO L885 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 14 19) the Hoare annotation is: true [2022-04-15 00:06:10,726 INFO L882 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2022-04-15 00:06:10,726 INFO L882 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2022-04-15 00:06:10,726 INFO L882 garLoopResultBuilder]: For program point L15-2(lines 14 19) no Hoare annotation was computed. [2022-04-15 00:06:10,726 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2022-04-15 00:06:10,726 INFO L882 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 19) no Hoare annotation was computed. [2022-04-15 00:06:10,728 INFO L719 BasicCegarLoop]: Path program histogram: [4, 1, 1] [2022-04-15 00:06:10,729 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-15 00:06:10,741 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 00:06:10,741 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-15 00:06:10,741 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-15 00:06:10,753 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: L15 has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-15 00:06:10,754 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-15 00:06:10,754 INFO L163 areAnnotationChecker]: CFG has 6 edges. 6 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-15 00:06:10,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.04 12:06:10 BasicIcfg [2022-04-15 00:06:10,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-15 00:06:10,762 INFO L158 Benchmark]: Toolchain (without parser) took 5168.71ms. Allocated memory was 221.2MB in the beginning and 335.5MB in the end (delta: 114.3MB). Free memory was 194.0MB in the beginning and 219.1MB in the end (delta: -25.2MB). Peak memory consumption was 88.4MB. Max. memory is 8.0GB. [2022-04-15 00:06:10,763 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 221.2MB. Free memory is still 179.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-15 00:06:10,763 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.55ms. Allocated memory was 221.2MB in the beginning and 335.5MB in the end (delta: 114.3MB). Free memory was 193.6MB in the beginning and 305.3MB in the end (delta: -111.6MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. [2022-04-15 00:06:10,763 INFO L158 Benchmark]: Boogie Preprocessor took 18.84ms. Allocated memory is still 335.5MB. Free memory was 305.3MB in the beginning and 304.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 00:06:10,763 INFO L158 Benchmark]: RCFGBuilder took 192.42ms. Allocated memory is still 335.5MB. Free memory was 304.2MB in the beginning and 293.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-15 00:06:10,763 INFO L158 Benchmark]: IcfgTransformer took 18.60ms. Allocated memory is still 335.5MB. Free memory was 293.7MB in the beginning and 292.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-15 00:06:10,763 INFO L158 Benchmark]: TraceAbstraction took 4770.00ms. Allocated memory is still 335.5MB. Free memory was 292.1MB in the beginning and 219.1MB in the end (delta: 73.0MB). Peak memory consumption was 73.0MB. Max. memory is 8.0GB. [2022-04-15 00:06:10,764 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 0.08ms. Allocated memory is still 221.2MB. Free memory is still 179.1MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 164.55ms. Allocated memory was 221.2MB in the beginning and 335.5MB in the end (delta: 114.3MB). Free memory was 193.6MB in the beginning and 305.3MB in the end (delta: -111.6MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.84ms. Allocated memory is still 335.5MB. Free memory was 305.3MB in the beginning and 304.2MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 192.42ms. Allocated memory is still 335.5MB. Free memory was 304.2MB in the beginning and 293.7MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 18.60ms. Allocated memory is still 335.5MB. Free memory was 293.7MB in the beginning and 292.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 4770.00ms. Allocated memory is still 335.5MB. Free memory was 292.1MB in the beginning and 219.1MB in the end (delta: 73.0MB). Peak memory consumption was 73.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 16]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 6, TraceHistogramMax: 9, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 74 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 73 mSDsluCounter, 211 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 136 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 489 IncrementalHoareTripleChecker+Invalid, 531 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 75 mSDtfsCounter, 489 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 139 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=5, InterpolantAutomatonStates: 50, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 12 PreInvPairs, 22 NumberOfFragments, 127 HoareAnnotationTreeSize, 12 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 198 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 244 ConstructedInterpolants, 0 QuantifiedInterpolants, 826 SizeOfPredicates, 1 NumberOfNonLiveVariables, 283 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 147/405 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((((((sn <= 16 && 9 <= i) && 15 < sn) || (((6 <= sn && sn <= 6) && i <= 4) && 4 <= i)) || (sn == 0 && i == 1)) || (((i <= 7 && 12 <= sn) && sn <= 12) && 7 <= i)) || (((14 <= sn && 8 <= i) && i <= 8) && sn <= 14)) || (((sn <= 10 && 10 <= sn) && i <= 6) && 6 <= i)) || (((4 <= sn && sn <= 4) && 3 <= i) && i <= 3)) || (((2 <= i && sn <= 2) && i <= 2) && 2 <= sn)) || (((i <= 5 && 8 <= sn) && 5 <= i) && sn <= 8) RESULT: Ultimate proved your program to be correct! [2022-04-15 00:06:10,802 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...