/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-27 20:19:31,215 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-27 20:19:31,226 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-27 20:19:31,273 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-27 20:19:31,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-27 20:19:31,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-27 20:19:31,284 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-27 20:19:31,286 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-27 20:19:31,288 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-27 20:19:31,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-27 20:19:31,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-27 20:19:31,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-27 20:19:31,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-27 20:19:31,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-27 20:19:31,300 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-27 20:19:31,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-27 20:19:31,302 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-27 20:19:31,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-27 20:19:31,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-27 20:19:31,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-27 20:19:31,313 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-27 20:19:31,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-27 20:19:31,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-27 20:19:31,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-27 20:19:31,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-27 20:19:31,321 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-27 20:19:31,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-27 20:19:31,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-27 20:19:31,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-27 20:19:31,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-27 20:19:31,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-27 20:19:31,327 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-27 20:19:31,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-27 20:19:31,328 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-27 20:19:31,328 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-27 20:19:31,329 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-27 20:19:31,330 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-27 20:19:31,331 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-27 20:19:31,345 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-27 20:19:31,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-27 20:19:31,346 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-27 20:19:31,346 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-27 20:19:31,347 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-27 20:19:31,347 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-27 20:19:31,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-27 20:19:31,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-27 20:19:31,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-27 20:19:31,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-27 20:19:31,348 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-27 20:19:31,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-27 20:19:31,348 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-27 20:19:31,348 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-27 20:19:31,348 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-27 20:19:31,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-27 20:19:31,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-27 20:19:31,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-27 20:19:31,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 20:19:31,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-27 20:19:31,349 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-27 20:19:31,351 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-27 20:19:31,351 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_JORDAN WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-27 20:19:31,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-27 20:19:31,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-27 20:19:31,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-27 20:19:31,650 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-27 20:19:31,651 INFO L275 PluginConnector]: CDTParser initialized [2022-04-27 20:19:31,652 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2022-04-27 20:19:31,701 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8414013eb/ab9ec4cca469473ba469c8d12a98b318/FLAG8078303cf [2022-04-27 20:19:32,108 INFO L306 CDTParser]: Found 1 translation units. [2022-04-27 20:19:32,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2022-04-27 20:19:32,114 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8414013eb/ab9ec4cca469473ba469c8d12a98b318/FLAG8078303cf [2022-04-27 20:19:32,135 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8414013eb/ab9ec4cca469473ba469c8d12a98b318 [2022-04-27 20:19:32,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-27 20:19:32,143 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-27 20:19:32,148 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-27 20:19:32,148 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-27 20:19:32,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-27 20:19:32,157 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aab6c6c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32, skipping insertion in model container [2022-04-27 20:19:32,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-27 20:19:32,179 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-27 20:19:32,326 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2022-04-27 20:19:32,351 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 20:19:32,359 INFO L203 MainTranslator]: Completed pre-run [2022-04-27 20:19:32,383 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/sqrt1-ll_unwindbound2.c[520,533] [2022-04-27 20:19:32,391 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-27 20:19:32,402 INFO L208 MainTranslator]: Completed translation [2022-04-27 20:19:32,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32 WrapperNode [2022-04-27 20:19:32,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-27 20:19:32,404 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-27 20:19:32,404 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-27 20:19:32,404 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-27 20:19:32,414 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,420 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-27 20:19:32,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-27 20:19:32,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-27 20:19:32,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-27 20:19:32,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-27 20:19:32,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 20:19:32,477 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) [2022-04-27 20:19:32,503 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 [2022-04-27 20:19:32,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-27 20:19:32,519 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-27 20:19:32,519 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-27 20:19:32,519 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-27 20:19:32,520 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-27 20:19:32,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-27 20:19:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-27 20:19:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-27 20:19:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-27 20:19:32,520 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-27 20:19:32,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-27 20:19:32,521 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-27 20:19:32,521 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-27 20:19:32,521 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-27 20:19:32,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-27 20:19:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-27 20:19:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-27 20:19:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-27 20:19:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-27 20:19:32,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-27 20:19:32,583 INFO L234 CfgBuilder]: Building ICFG [2022-04-27 20:19:32,585 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-27 20:19:32,752 INFO L275 CfgBuilder]: Performing block encoding [2022-04-27 20:19:32,758 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-27 20:19:32,758 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-27 20:19:32,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 08:19:32 BoogieIcfgContainer [2022-04-27 20:19:32,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-27 20:19:32,777 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-27 20:19:32,777 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-27 20:19:32,778 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-27 20:19:32,780 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 08:19:32" (1/1) ... [2022-04-27 20:19:32,782 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-27 20:19:32,800 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 08:19:32 BasicIcfg [2022-04-27 20:19:32,800 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-27 20:19:32,801 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-27 20:19:32,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-27 20:19:32,804 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-27 20:19:32,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.04 08:19:32" (1/4) ... [2022-04-27 20:19:32,804 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62262c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 08:19:32, skipping insertion in model container [2022-04-27 20:19:32,804 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.04 08:19:32" (2/4) ... [2022-04-27 20:19:32,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62262c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.04 08:19:32, skipping insertion in model container [2022-04-27 20:19:32,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.04 08:19:32" (3/4) ... [2022-04-27 20:19:32,805 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62262c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 08:19:32, skipping insertion in model container [2022-04-27 20:19:32,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 27.04 08:19:32" (4/4) ... [2022-04-27 20:19:32,806 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound2.cJordan [2022-04-27 20:19:32,818 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-27 20:19:32,818 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-27 20:19:32,854 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-27 20:19:32,867 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@337b4169, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6d2f0c1f [2022-04-27 20:19:32,867 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-27 20:19:32,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-04-27 20:19:32,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-04-27 20:19:32,888 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 20:19:32,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 20:19:32,889 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 20:19:32,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 20:19:32,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1238828824, now seen corresponding path program 1 times [2022-04-27 20:19:32,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 20:19:32,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342586929] [2022-04-27 20:19:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:32,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 20:19:33,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:33,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 20:19:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:33,126 INFO L290 TraceCheckUtils]: 0: Hoare triple {34#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {29#true} is VALID [2022-04-27 20:19:33,127 INFO L290 TraceCheckUtils]: 1: Hoare triple {29#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 20:19:33,127 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {29#true} {29#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 20:19:33,130 INFO L272 TraceCheckUtils]: 0: Hoare triple {29#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {34#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 20:19:33,131 INFO L290 TraceCheckUtils]: 1: Hoare triple {34#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {29#true} is VALID [2022-04-27 20:19:33,131 INFO L290 TraceCheckUtils]: 2: Hoare triple {29#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 20:19:33,132 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {29#true} {29#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 20:19:33,132 INFO L272 TraceCheckUtils]: 4: Hoare triple {29#true} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {29#true} is VALID [2022-04-27 20:19:33,133 INFO L290 TraceCheckUtils]: 5: Hoare triple {29#true} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {29#true} is VALID [2022-04-27 20:19:33,134 INFO L290 TraceCheckUtils]: 6: Hoare triple {29#true} [75] L30-3-->L30-4: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {30#false} is VALID [2022-04-27 20:19:33,134 INFO L272 TraceCheckUtils]: 7: Hoare triple {30#false} [77] L30-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~t~0_12 (+ (* 2 v_main_~a~0_12) 1)) 1 0) |v___VERIFIER_assert_#in~condInParam_4|) InVars {main_~t~0=v_main_~t~0_12, main_~a~0=v_main_~a~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_4|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {30#false} is VALID [2022-04-27 20:19:33,135 INFO L290 TraceCheckUtils]: 8: Hoare triple {30#false} [81] __VERIFIER_assertENTRY-->L12: 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] {30#false} is VALID [2022-04-27 20:19:33,135 INFO L290 TraceCheckUtils]: 9: Hoare triple {30#false} [84] L12-->L13: 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[] {30#false} is VALID [2022-04-27 20:19:33,135 INFO L290 TraceCheckUtils]: 10: Hoare triple {30#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {30#false} is VALID [2022-04-27 20:19:33,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 20:19:33,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 20:19:33,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342586929] [2022-04-27 20:19:33,137 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342586929] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 20:19:33,137 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 20:19:33,138 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-27 20:19:33,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955606832] [2022-04-27 20:19:33,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 20:19:33,145 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 [2022-04-27 20:19:33,146 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 20:19:33,149 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) [2022-04-27 20:19:33,169 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:33,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-27 20:19:33,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 20:19:33,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-27 20:19:33,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-27 20:19:33,201 INFO L87 Difference]: Start difference. First operand has 26 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 14 states have internal predecessors, (18), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) 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) [2022-04-27 20:19:33,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:33,376 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2022-04-27 20:19:33,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-27 20:19:33,377 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 [2022-04-27 20:19:33,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 20:19:33,378 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) [2022-04-27 20:19:33,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-27 20:19:33,392 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) [2022-04-27 20:19:33,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 36 transitions. [2022-04-27 20:19:33,396 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 36 transitions. [2022-04-27 20:19:33,434 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:33,441 INFO L225 Difference]: With dead ends: 27 [2022-04-27 20:19:33,442 INFO L226 Difference]: Without dead ends: 22 [2022-04-27 20:19:33,443 INFO L412 NwaCegarLoop]: 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 [2022-04-27 20:19:33,446 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 6 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 20:19:33,447 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 35 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 20:19:33,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2022-04-27 20:19:33,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2022-04-27 20:19:33,471 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 20:19:33,471 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 20:19:33,472 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 20:19:33,472 INFO L87 Difference]: Start difference. First operand 22 states. Second operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 20:19:33,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:33,477 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2022-04-27 20:19:33,477 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2022-04-27 20:19:33,478 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:33,478 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:33,479 INFO L74 IsIncluded]: Start isIncluded. First operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 22 states. [2022-04-27 20:19:33,479 INFO L87 Difference]: Start difference. First operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 22 states. [2022-04-27 20:19:33,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:33,482 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2022-04-27 20:19:33,482 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 28 transitions. [2022-04-27 20:19:33,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:33,483 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:33,483 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 20:19:33,483 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 20:19:33,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 10 states have (on average 1.3) internal successors, (13), 11 states have internal predecessors, (13), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 20:19:33,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2022-04-27 20:19:33,487 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 11 [2022-04-27 20:19:33,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 20:19:33,488 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2022-04-27 20:19:33,488 INFO L496 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) [2022-04-27 20:19:33,488 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-04-27 20:19:33,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-27 20:19:33,489 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 20:19:33,489 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 20:19:33,489 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-27 20:19:33,489 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 20:19:33,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 20:19:33,490 INFO L85 PathProgramCache]: Analyzing trace with hash -221581531, now seen corresponding path program 1 times [2022-04-27 20:19:33,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 20:19:33,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142385074] [2022-04-27 20:19:33,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:33,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 20:19:33,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:33,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 20:19:33,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:33,622 INFO L290 TraceCheckUtils]: 0: Hoare triple {136#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {134#(= ~counter~0 0)} is VALID [2022-04-27 20:19:33,627 INFO L290 TraceCheckUtils]: 1: Hoare triple {134#(= ~counter~0 0)} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {134#(= ~counter~0 0)} is VALID [2022-04-27 20:19:33,628 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {134#(= ~counter~0 0)} {129#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {134#(= ~counter~0 0)} is VALID [2022-04-27 20:19:33,629 INFO L272 TraceCheckUtils]: 0: Hoare triple {129#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {136#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 20:19:33,630 INFO L290 TraceCheckUtils]: 1: Hoare triple {136#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {134#(= ~counter~0 0)} is VALID [2022-04-27 20:19:33,630 INFO L290 TraceCheckUtils]: 2: Hoare triple {134#(= ~counter~0 0)} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {134#(= ~counter~0 0)} is VALID [2022-04-27 20:19:33,631 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {134#(= ~counter~0 0)} {129#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {134#(= ~counter~0 0)} is VALID [2022-04-27 20:19:33,631 INFO L272 TraceCheckUtils]: 4: Hoare triple {134#(= ~counter~0 0)} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {134#(= ~counter~0 0)} is VALID [2022-04-27 20:19:33,632 INFO L290 TraceCheckUtils]: 5: Hoare triple {134#(= ~counter~0 0)} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {134#(= ~counter~0 0)} is VALID [2022-04-27 20:19:33,633 INFO L290 TraceCheckUtils]: 6: Hoare triple {134#(= ~counter~0 0)} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {135#(= |main_#t~post5| 0)} is VALID [2022-04-27 20:19:33,633 INFO L290 TraceCheckUtils]: 7: Hoare triple {135#(= |main_#t~post5| 0)} [78] L30-1-->L30-4: Formula: (not (< |v_main_#t~post5_3| 2)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {130#false} is VALID [2022-04-27 20:19:33,633 INFO L272 TraceCheckUtils]: 8: Hoare triple {130#false} [77] L30-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~t~0_12 (+ (* 2 v_main_~a~0_12) 1)) 1 0) |v___VERIFIER_assert_#in~condInParam_4|) InVars {main_~t~0=v_main_~t~0_12, main_~a~0=v_main_~a~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_4|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {130#false} is VALID [2022-04-27 20:19:33,634 INFO L290 TraceCheckUtils]: 9: Hoare triple {130#false} [81] __VERIFIER_assertENTRY-->L12: 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] {130#false} is VALID [2022-04-27 20:19:33,634 INFO L290 TraceCheckUtils]: 10: Hoare triple {130#false} [84] L12-->L13: 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[] {130#false} is VALID [2022-04-27 20:19:33,634 INFO L290 TraceCheckUtils]: 11: Hoare triple {130#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {130#false} is VALID [2022-04-27 20:19:33,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 20:19:33,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 20:19:33,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142385074] [2022-04-27 20:19:33,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142385074] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 20:19:33,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 20:19:33,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-04-27 20:19:33,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594040945] [2022-04-27 20:19:33,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 20:19:33,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-27 20:19:33,637 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 20:19:33,637 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 20:19:33,648 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:33,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 20:19:33,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 20:19:33,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 20:19:33,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-27 20:19:33,650 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 20:19:33,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:33,853 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2022-04-27 20:19:33,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-27 20:19:33,853 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-04-27 20:19:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 20:19:33,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 20:19:33,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. [2022-04-27 20:19:33,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 20:19:33,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 30 transitions. [2022-04-27 20:19:33,858 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 30 transitions. [2022-04-27 20:19:33,886 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:33,887 INFO L225 Difference]: With dead ends: 23 [2022-04-27 20:19:33,887 INFO L226 Difference]: Without dead ends: 23 [2022-04-27 20:19:33,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-27 20:19:33,889 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 6 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-27 20:19:33,889 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 49 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-27 20:19:33,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-04-27 20:19:33,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-04-27 20:19:33,892 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 20:19:33,893 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 20:19:33,893 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 20:19:33,893 INFO L87 Difference]: Start difference. First operand 23 states. Second operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 20:19:33,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:33,895 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2022-04-27 20:19:33,896 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-04-27 20:19:33,896 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:33,896 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:33,897 INFO L74 IsIncluded]: Start isIncluded. First operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 23 states. [2022-04-27 20:19:33,897 INFO L87 Difference]: Start difference. First operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand 23 states. [2022-04-27 20:19:33,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:33,900 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2022-04-27 20:19:33,900 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-04-27 20:19:33,901 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:33,901 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:33,901 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 20:19:33,901 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 20:19:33,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-27 20:19:33,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2022-04-27 20:19:33,904 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 12 [2022-04-27 20:19:33,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 20:19:33,904 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2022-04-27 20:19:33,905 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 3 states have internal predecessors, (8), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-04-27 20:19:33,905 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-04-27 20:19:33,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-04-27 20:19:33,905 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 20:19:33,905 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 20:19:33,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-04-27 20:19:33,906 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 20:19:33,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 20:19:33,906 INFO L85 PathProgramCache]: Analyzing trace with hash -220509055, now seen corresponding path program 1 times [2022-04-27 20:19:33,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 20:19:33,907 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872757795] [2022-04-27 20:19:33,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:33,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 20:19:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:34,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-27 20:19:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:34,038 INFO L290 TraceCheckUtils]: 0: Hoare triple {241#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {233#true} is VALID [2022-04-27 20:19:34,038 INFO L290 TraceCheckUtils]: 1: Hoare triple {233#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {233#true} is VALID [2022-04-27 20:19:34,039 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {233#true} {233#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {233#true} is VALID [2022-04-27 20:19:34,040 INFO L272 TraceCheckUtils]: 0: Hoare triple {233#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {241#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-27 20:19:34,040 INFO L290 TraceCheckUtils]: 1: Hoare triple {241#(and (= ~counter~0 |old(~counter~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {233#true} is VALID [2022-04-27 20:19:34,040 INFO L290 TraceCheckUtils]: 2: Hoare triple {233#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {233#true} is VALID [2022-04-27 20:19:34,040 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {233#true} {233#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {233#true} is VALID [2022-04-27 20:19:34,041 INFO L272 TraceCheckUtils]: 4: Hoare triple {233#true} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {233#true} is VALID [2022-04-27 20:19:34,041 INFO L290 TraceCheckUtils]: 5: Hoare triple {233#true} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {238#(and (= (* main_~a~0 2) 0) (= main_~t~0 (+ (* main_~a~0 2) 1)))} is VALID [2022-04-27 20:19:34,042 INFO L290 TraceCheckUtils]: 6: Hoare triple {238#(and (= (* main_~a~0 2) 0) (= main_~t~0 (+ (* main_~a~0 2) 1)))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {238#(and (= (* main_~a~0 2) 0) (= main_~t~0 (+ (* main_~a~0 2) 1)))} is VALID [2022-04-27 20:19:34,043 INFO L290 TraceCheckUtils]: 7: Hoare triple {238#(and (= (* main_~a~0 2) 0) (= main_~t~0 (+ (* main_~a~0 2) 1)))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {238#(and (= (* main_~a~0 2) 0) (= main_~t~0 (+ (* main_~a~0 2) 1)))} is VALID [2022-04-27 20:19:34,044 INFO L272 TraceCheckUtils]: 8: Hoare triple {238#(and (= (* main_~a~0 2) 0) (= main_~t~0 (+ (* main_~a~0 2) 1)))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {239#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-27 20:19:34,044 INFO L290 TraceCheckUtils]: 9: Hoare triple {239#(not (= |__VERIFIER_assert_#in~cond| 0))} [81] __VERIFIER_assertENTRY-->L12: 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] {240#(not (= __VERIFIER_assert_~cond 0))} is VALID [2022-04-27 20:19:34,045 INFO L290 TraceCheckUtils]: 10: Hoare triple {240#(not (= __VERIFIER_assert_~cond 0))} [84] L12-->L13: 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[] {234#false} is VALID [2022-04-27 20:19:34,045 INFO L290 TraceCheckUtils]: 11: Hoare triple {234#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {234#false} is VALID [2022-04-27 20:19:34,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 20:19:34,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 20:19:34,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872757795] [2022-04-27 20:19:34,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872757795] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 20:19:34,046 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 20:19:34,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-04-27 20:19:34,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253235407] [2022-04-27 20:19:34,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 20:19:34,047 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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 12 [2022-04-27 20:19:34,047 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 20:19:34,048 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-04-27 20:19:34,059 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:34,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-04-27 20:19:34,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 20:19:34,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-04-27 20:19:34,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-04-27 20:19:34,060 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-04-27 20:19:34,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:34,457 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2022-04-27 20:19:34,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-04-27 20:19:34,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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 12 [2022-04-27 20:19:34,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 20:19:34,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-04-27 20:19:34,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 46 transitions. [2022-04-27 20:19:34,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-04-27 20:19:34,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 46 transitions. [2022-04-27 20:19:34,468 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 8 states and 46 transitions. [2022-04-27 20:19:34,529 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:34,537 INFO L225 Difference]: With dead ends: 34 [2022-04-27 20:19:34,537 INFO L226 Difference]: Without dead ends: 34 [2022-04-27 20:19:34,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-04-27 20:19:34,545 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 16 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-27 20:19:34,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 53 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-27 20:19:34,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-27 20:19:34,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2022-04-27 20:19:34,552 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 20:19:34,553 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 32 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-27 20:19:34,553 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 32 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-27 20:19:34,553 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 32 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-27 20:19:34,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:34,557 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2022-04-27 20:19:34,557 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2022-04-27 20:19:34,558 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:34,558 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:34,558 INFO L74 IsIncluded]: Start isIncluded. First operand has 32 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand 34 states. [2022-04-27 20:19:34,559 INFO L87 Difference]: Start difference. First operand has 32 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand 34 states. [2022-04-27 20:19:34,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:34,571 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2022-04-27 20:19:34,571 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2022-04-27 20:19:34,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:34,572 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:34,572 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 20:19:34,572 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 20:19:34,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 12 states have call successors, (12), 4 states have call predecessors, (12), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-04-27 20:19:34,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 42 transitions. [2022-04-27 20:19:34,575 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 42 transitions. Word has length 12 [2022-04-27 20:19:34,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 20:19:34,576 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 42 transitions. [2022-04-27 20:19:34,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-04-27 20:19:34,576 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 42 transitions. [2022-04-27 20:19:34,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-27 20:19:34,578 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 20:19:34,578 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 20:19:34,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-04-27 20:19:34,578 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 20:19:34,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 20:19:34,579 INFO L85 PathProgramCache]: Analyzing trace with hash 1748396925, now seen corresponding path program 1 times [2022-04-27 20:19:34,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 20:19:34,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550356749] [2022-04-27 20:19:34,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:34,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 20:19:34,598 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 20:19:34,599 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [765514010] [2022-04-27 20:19:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:34,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:34,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 20:19:34,601 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) [2022-04-27 20:19:34,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-27 20:19:34,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:34,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 20:19:34,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:34,656 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 20:19:34,840 INFO L272 TraceCheckUtils]: 0: Hoare triple {386#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {386#true} is VALID [2022-04-27 20:19:34,841 INFO L290 TraceCheckUtils]: 1: Hoare triple {386#true} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {386#true} is VALID [2022-04-27 20:19:34,841 INFO L290 TraceCheckUtils]: 2: Hoare triple {386#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {386#true} is VALID [2022-04-27 20:19:34,842 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {386#true} {386#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {386#true} is VALID [2022-04-27 20:19:34,842 INFO L272 TraceCheckUtils]: 4: Hoare triple {386#true} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {386#true} is VALID [2022-04-27 20:19:34,846 INFO L290 TraceCheckUtils]: 5: Hoare triple {386#true} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {406#(and (= main_~a~0 0) (= main_~s~0 1))} is VALID [2022-04-27 20:19:34,847 INFO L290 TraceCheckUtils]: 6: Hoare triple {406#(and (= main_~a~0 0) (= main_~s~0 1))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {406#(and (= main_~a~0 0) (= main_~s~0 1))} is VALID [2022-04-27 20:19:34,848 INFO L290 TraceCheckUtils]: 7: Hoare triple {406#(and (= main_~a~0 0) (= main_~s~0 1))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {406#(and (= main_~a~0 0) (= main_~s~0 1))} is VALID [2022-04-27 20:19:34,848 INFO L272 TraceCheckUtils]: 8: Hoare triple {406#(and (= main_~a~0 0) (= main_~s~0 1))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {386#true} is VALID [2022-04-27 20:19:34,848 INFO L290 TraceCheckUtils]: 9: Hoare triple {386#true} [81] __VERIFIER_assertENTRY-->L12: 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] {386#true} is VALID [2022-04-27 20:19:34,848 INFO L290 TraceCheckUtils]: 10: Hoare triple {386#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {386#true} is VALID [2022-04-27 20:19:34,848 INFO L290 TraceCheckUtils]: 11: Hoare triple {386#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {386#true} is VALID [2022-04-27 20:19:34,852 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {386#true} {406#(and (= main_~a~0 0) (= main_~s~0 1))} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {406#(and (= main_~a~0 0) (= main_~s~0 1))} is VALID [2022-04-27 20:19:34,854 INFO L272 TraceCheckUtils]: 13: Hoare triple {406#(and (= main_~a~0 0) (= main_~s~0 1))} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {431#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 20:19:34,854 INFO L290 TraceCheckUtils]: 14: Hoare triple {431#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L12: 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] {435#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 20:19:34,855 INFO L290 TraceCheckUtils]: 15: Hoare triple {435#(<= 1 __VERIFIER_assert_~cond)} [84] L12-->L13: 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[] {387#false} is VALID [2022-04-27 20:19:34,855 INFO L290 TraceCheckUtils]: 16: Hoare triple {387#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {387#false} is VALID [2022-04-27 20:19:34,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-27 20:19:34,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 20:19:34,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 20:19:34,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550356749] [2022-04-27 20:19:34,856 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 20:19:34,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765514010] [2022-04-27 20:19:34,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765514010] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 20:19:34,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 20:19:34,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-27 20:19:34,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715587383] [2022-04-27 20:19:34,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 20:19:34,857 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-04-27 20:19:34,858 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 20:19:34,858 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 20:19:34,878 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:34,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 20:19:34,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 20:19:34,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 20:19:34,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-27 20:19:34,880 INFO L87 Difference]: Start difference. First operand 32 states and 42 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 20:19:35,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:35,029 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2022-04-27 20:19:35,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-27 20:19:35,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2022-04-27 20:19:35,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 20:19:35,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 20:19:35,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2022-04-27 20:19:35,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 20:19:35,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2022-04-27 20:19:35,034 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 46 transitions. [2022-04-27 20:19:35,080 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:35,081 INFO L225 Difference]: With dead ends: 38 [2022-04-27 20:19:35,081 INFO L226 Difference]: Without dead ends: 38 [2022-04-27 20:19:35,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-27 20:19:35,082 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 6 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 20:19:35,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 88 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 20:19:35,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-04-27 20:19:35,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 37. [2022-04-27 20:19:35,087 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 20:19:35,087 INFO L82 GeneralOperation]: Start isEquivalent. First operand 38 states. Second operand has 37 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-27 20:19:35,088 INFO L74 IsIncluded]: Start isIncluded. First operand 38 states. Second operand has 37 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-27 20:19:35,088 INFO L87 Difference]: Start difference. First operand 38 states. Second operand has 37 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-27 20:19:35,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:35,091 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2022-04-27 20:19:35,091 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2022-04-27 20:19:35,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:35,092 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:35,092 INFO L74 IsIncluded]: Start isIncluded. First operand has 37 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Second operand 38 states. [2022-04-27 20:19:35,092 INFO L87 Difference]: Start difference. First operand has 37 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) Second operand 38 states. [2022-04-27 20:19:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:35,095 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2022-04-27 20:19:35,095 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 48 transitions. [2022-04-27 20:19:35,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:35,096 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:35,096 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 20:19:35,096 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 20:19:35,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 10 states have call predecessors, (11), 11 states have call successors, (11) [2022-04-27 20:19:35,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2022-04-27 20:19:35,098 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 17 [2022-04-27 20:19:35,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 20:19:35,099 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2022-04-27 20:19:35,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-04-27 20:19:35,099 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2022-04-27 20:19:35,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-04-27 20:19:35,100 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 20:19:35,100 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 20:19:35,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-27 20:19:35,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:35,318 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 20:19:35,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 20:19:35,319 INFO L85 PathProgramCache]: Analyzing trace with hash -214718627, now seen corresponding path program 1 times [2022-04-27 20:19:35,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 20:19:35,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959818114] [2022-04-27 20:19:35,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:35,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 20:19:35,339 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 20:19:35,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2036539699] [2022-04-27 20:19:35,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:35,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:35,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 20:19:35,348 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) [2022-04-27 20:19:35,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-27 20:19:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:35,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 20:19:35,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:35,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 20:19:35,561 INFO L272 TraceCheckUtils]: 0: Hoare triple {594#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {594#true} is VALID [2022-04-27 20:19:35,561 INFO L290 TraceCheckUtils]: 1: Hoare triple {594#true} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {594#true} is VALID [2022-04-27 20:19:35,562 INFO L290 TraceCheckUtils]: 2: Hoare triple {594#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {594#true} is VALID [2022-04-27 20:19:35,562 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {594#true} {594#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {594#true} is VALID [2022-04-27 20:19:35,562 INFO L272 TraceCheckUtils]: 4: Hoare triple {594#true} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {594#true} is VALID [2022-04-27 20:19:35,564 INFO L290 TraceCheckUtils]: 5: Hoare triple {594#true} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {614#(and (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:35,565 INFO L290 TraceCheckUtils]: 6: Hoare triple {614#(and (= main_~t~0 1) (= main_~s~0 1))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {614#(and (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:35,565 INFO L290 TraceCheckUtils]: 7: Hoare triple {614#(and (= main_~t~0 1) (= main_~s~0 1))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {614#(and (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:35,566 INFO L272 TraceCheckUtils]: 8: Hoare triple {614#(and (= main_~t~0 1) (= main_~s~0 1))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {594#true} is VALID [2022-04-27 20:19:35,566 INFO L290 TraceCheckUtils]: 9: Hoare triple {594#true} [81] __VERIFIER_assertENTRY-->L12: 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] {594#true} is VALID [2022-04-27 20:19:35,566 INFO L290 TraceCheckUtils]: 10: Hoare triple {594#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {594#true} is VALID [2022-04-27 20:19:35,566 INFO L290 TraceCheckUtils]: 11: Hoare triple {594#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {594#true} is VALID [2022-04-27 20:19:35,571 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {594#true} {614#(and (= main_~t~0 1) (= main_~s~0 1))} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {614#(and (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:35,571 INFO L272 TraceCheckUtils]: 13: Hoare triple {614#(and (= main_~t~0 1) (= main_~s~0 1))} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {594#true} is VALID [2022-04-27 20:19:35,572 INFO L290 TraceCheckUtils]: 14: Hoare triple {594#true} [81] __VERIFIER_assertENTRY-->L12: 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] {594#true} is VALID [2022-04-27 20:19:35,572 INFO L290 TraceCheckUtils]: 15: Hoare triple {594#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {594#true} is VALID [2022-04-27 20:19:35,572 INFO L290 TraceCheckUtils]: 16: Hoare triple {594#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {594#true} is VALID [2022-04-27 20:19:35,573 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {594#true} {614#(and (= main_~t~0 1) (= main_~s~0 1))} [97] __VERIFIER_assertEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {614#(and (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:35,574 INFO L272 TraceCheckUtils]: 18: Hoare triple {614#(and (= main_~t~0 1) (= main_~s~0 1))} [91] L32-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {654#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 20:19:35,575 INFO L290 TraceCheckUtils]: 19: Hoare triple {654#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L12: 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] {658#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 20:19:35,575 INFO L290 TraceCheckUtils]: 20: Hoare triple {658#(<= 1 __VERIFIER_assert_~cond)} [84] L12-->L13: 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[] {595#false} is VALID [2022-04-27 20:19:35,575 INFO L290 TraceCheckUtils]: 21: Hoare triple {595#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {595#false} is VALID [2022-04-27 20:19:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-27 20:19:35,576 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-27 20:19:35,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 20:19:35,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959818114] [2022-04-27 20:19:35,576 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 20:19:35,578 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036539699] [2022-04-27 20:19:35,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036539699] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-27 20:19:35,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-27 20:19:35,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-27 20:19:35,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095120296] [2022-04-27 20:19:35,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 20:19:35,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-04-27 20:19:35,583 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 20:19:35,583 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 20:19:35,597 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 19 edges. 19 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:35,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 20:19:35,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 20:19:35,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 20:19:35,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-27 20:19:35,600 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 20:19:35,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:35,757 INFO L93 Difference]: Finished difference Result 42 states and 51 transitions. [2022-04-27 20:19:35,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-27 20:19:35,757 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-04-27 20:19:35,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 20:19:35,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 20:19:35,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2022-04-27 20:19:35,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 20:19:35,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 46 transitions. [2022-04-27 20:19:35,761 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 46 transitions. [2022-04-27 20:19:35,808 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 46 edges. 46 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:35,810 INFO L225 Difference]: With dead ends: 42 [2022-04-27 20:19:35,810 INFO L226 Difference]: Without dead ends: 39 [2022-04-27 20:19:35,811 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-27 20:19:35,812 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 6 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 20:19:35,812 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 95 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 20:19:35,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-04-27 20:19:35,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-04-27 20:19:35,819 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 20:19:35,821 INFO L82 GeneralOperation]: Start isEquivalent. First operand 39 states. Second operand has 39 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:35,822 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand has 39 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:35,822 INFO L87 Difference]: Start difference. First operand 39 states. Second operand has 39 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:35,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:35,826 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2022-04-27 20:19:35,826 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-04-27 20:19:35,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:35,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:35,827 INFO L74 IsIncluded]: Start isIncluded. First operand has 39 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 39 states. [2022-04-27 20:19:35,828 INFO L87 Difference]: Start difference. First operand has 39 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 39 states. [2022-04-27 20:19:35,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:35,833 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2022-04-27 20:19:35,834 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-04-27 20:19:35,834 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:35,834 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:35,834 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 20:19:35,834 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 20:19:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:35,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 45 transitions. [2022-04-27 20:19:35,837 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 45 transitions. Word has length 22 [2022-04-27 20:19:35,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 20:19:35,838 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 45 transitions. [2022-04-27 20:19:35,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-27 20:19:35,841 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 45 transitions. [2022-04-27 20:19:35,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-27 20:19:35,843 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 20:19:35,843 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 20:19:35,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-27 20:19:36,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:36,064 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 20:19:36,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 20:19:36,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1697115236, now seen corresponding path program 1 times [2022-04-27 20:19:36,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 20:19:36,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108072886] [2022-04-27 20:19:36,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:36,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 20:19:36,078 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 20:19:36,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [929010650] [2022-04-27 20:19:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:36,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:36,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 20:19:36,080 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) [2022-04-27 20:19:36,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-27 20:19:36,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:36,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-27 20:19:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:36,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 20:19:36,385 INFO L272 TraceCheckUtils]: 0: Hoare triple {825#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {825#true} is VALID [2022-04-27 20:19:36,386 INFO L290 TraceCheckUtils]: 1: Hoare triple {825#true} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,386 INFO L290 TraceCheckUtils]: 2: Hoare triple {833#(<= ~counter~0 0)} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,387 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {833#(<= ~counter~0 0)} {825#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,387 INFO L272 TraceCheckUtils]: 4: Hoare triple {833#(<= ~counter~0 0)} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,388 INFO L290 TraceCheckUtils]: 5: Hoare triple {833#(<= ~counter~0 0)} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,388 INFO L290 TraceCheckUtils]: 6: Hoare triple {833#(<= ~counter~0 0)} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,388 INFO L290 TraceCheckUtils]: 7: Hoare triple {849#(<= ~counter~0 1)} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,389 INFO L272 TraceCheckUtils]: 8: Hoare triple {849#(<= ~counter~0 1)} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,389 INFO L290 TraceCheckUtils]: 9: Hoare triple {849#(<= ~counter~0 1)} [81] __VERIFIER_assertENTRY-->L12: 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] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,390 INFO L290 TraceCheckUtils]: 10: Hoare triple {849#(<= ~counter~0 1)} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,390 INFO L290 TraceCheckUtils]: 11: Hoare triple {849#(<= ~counter~0 1)} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,391 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {849#(<= ~counter~0 1)} {849#(<= ~counter~0 1)} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,392 INFO L272 TraceCheckUtils]: 13: Hoare triple {849#(<= ~counter~0 1)} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,393 INFO L290 TraceCheckUtils]: 14: Hoare triple {849#(<= ~counter~0 1)} [81] __VERIFIER_assertENTRY-->L12: 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] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,393 INFO L290 TraceCheckUtils]: 15: Hoare triple {849#(<= ~counter~0 1)} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,394 INFO L290 TraceCheckUtils]: 16: Hoare triple {849#(<= ~counter~0 1)} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,395 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {849#(<= ~counter~0 1)} {849#(<= ~counter~0 1)} [97] __VERIFIER_assertEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,395 INFO L272 TraceCheckUtils]: 18: Hoare triple {849#(<= ~counter~0 1)} [91] L32-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,398 INFO L290 TraceCheckUtils]: 19: Hoare triple {849#(<= ~counter~0 1)} [81] __VERIFIER_assertENTRY-->L12: 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] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,398 INFO L290 TraceCheckUtils]: 20: Hoare triple {849#(<= ~counter~0 1)} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,399 INFO L290 TraceCheckUtils]: 21: Hoare triple {849#(<= ~counter~0 1)} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,399 INFO L284 TraceCheckUtils]: 22: Hoare quadruple {849#(<= ~counter~0 1)} {849#(<= ~counter~0 1)} [98] __VERIFIER_assertEXIT-->L33: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,400 INFO L290 TraceCheckUtils]: 23: Hoare triple {849#(<= ~counter~0 1)} [94] L33-->L30-3: Formula: (and (= v_main_~t~0_8 (+ v_main_~t~0_9 2)) (<= v_main_~s~0_10 v_main_~n~0_5) (= v_main_~s~0_9 (+ v_main_~s~0_10 v_main_~t~0_8)) (= v_main_~a~0_8 (+ v_main_~a~0_9 1))) InVars {main_~t~0=v_main_~t~0_9, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_10, main_~a~0=v_main_~a~0_9} OutVars{main_~t~0=v_main_~t~0_8, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_9, main_~a~0=v_main_~a~0_8} AuxVars[] AssignedVars[main_~t~0, main_~s~0, main_~a~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,401 INFO L290 TraceCheckUtils]: 24: Hoare triple {849#(<= ~counter~0 1)} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {904#(<= |main_#t~post5| 1)} is VALID [2022-04-27 20:19:36,402 INFO L290 TraceCheckUtils]: 25: Hoare triple {904#(<= |main_#t~post5| 1)} [78] L30-1-->L30-4: Formula: (not (< |v_main_#t~post5_3| 2)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {826#false} is VALID [2022-04-27 20:19:36,402 INFO L272 TraceCheckUtils]: 26: Hoare triple {826#false} [77] L30-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~t~0_12 (+ (* 2 v_main_~a~0_12) 1)) 1 0) |v___VERIFIER_assert_#in~condInParam_4|) InVars {main_~t~0=v_main_~t~0_12, main_~a~0=v_main_~a~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_4|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {826#false} is VALID [2022-04-27 20:19:36,402 INFO L290 TraceCheckUtils]: 27: Hoare triple {826#false} [81] __VERIFIER_assertENTRY-->L12: 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] {826#false} is VALID [2022-04-27 20:19:36,402 INFO L290 TraceCheckUtils]: 28: Hoare triple {826#false} [84] L12-->L13: 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[] {826#false} is VALID [2022-04-27 20:19:36,402 INFO L290 TraceCheckUtils]: 29: Hoare triple {826#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {826#false} is VALID [2022-04-27 20:19:36,403 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-04-27 20:19:36,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-27 20:19:36,580 INFO L290 TraceCheckUtils]: 29: Hoare triple {826#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {826#false} is VALID [2022-04-27 20:19:36,582 INFO L290 TraceCheckUtils]: 28: Hoare triple {826#false} [84] L12-->L13: 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[] {826#false} is VALID [2022-04-27 20:19:36,583 INFO L290 TraceCheckUtils]: 27: Hoare triple {826#false} [81] __VERIFIER_assertENTRY-->L12: 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] {826#false} is VALID [2022-04-27 20:19:36,594 INFO L272 TraceCheckUtils]: 26: Hoare triple {826#false} [77] L30-4-->__VERIFIER_assertENTRY: Formula: (= (ite (= v_main_~t~0_12 (+ (* 2 v_main_~a~0_12) 1)) 1 0) |v___VERIFIER_assert_#in~condInParam_4|) InVars {main_~t~0=v_main_~t~0_12, main_~a~0=v_main_~a~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_4|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {826#false} is VALID [2022-04-27 20:19:36,597 INFO L290 TraceCheckUtils]: 25: Hoare triple {904#(<= |main_#t~post5| 1)} [78] L30-1-->L30-4: Formula: (not (< |v_main_#t~post5_3| 2)) InVars {main_#t~post5=|v_main_#t~post5_3|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {826#false} is VALID [2022-04-27 20:19:36,598 INFO L290 TraceCheckUtils]: 24: Hoare triple {849#(<= ~counter~0 1)} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {904#(<= |main_#t~post5| 1)} is VALID [2022-04-27 20:19:36,598 INFO L290 TraceCheckUtils]: 23: Hoare triple {849#(<= ~counter~0 1)} [94] L33-->L30-3: Formula: (and (= v_main_~t~0_8 (+ v_main_~t~0_9 2)) (<= v_main_~s~0_10 v_main_~n~0_5) (= v_main_~s~0_9 (+ v_main_~s~0_10 v_main_~t~0_8)) (= v_main_~a~0_8 (+ v_main_~a~0_9 1))) InVars {main_~t~0=v_main_~t~0_9, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_10, main_~a~0=v_main_~a~0_9} OutVars{main_~t~0=v_main_~t~0_8, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_9, main_~a~0=v_main_~a~0_8} AuxVars[] AssignedVars[main_~t~0, main_~s~0, main_~a~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,599 INFO L284 TraceCheckUtils]: 22: Hoare quadruple {825#true} {849#(<= ~counter~0 1)} [98] __VERIFIER_assertEXIT-->L33: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,599 INFO L290 TraceCheckUtils]: 21: Hoare triple {825#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {825#true} is VALID [2022-04-27 20:19:36,599 INFO L290 TraceCheckUtils]: 20: Hoare triple {825#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {825#true} is VALID [2022-04-27 20:19:36,599 INFO L290 TraceCheckUtils]: 19: Hoare triple {825#true} [81] __VERIFIER_assertENTRY-->L12: 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] {825#true} is VALID [2022-04-27 20:19:36,599 INFO L272 TraceCheckUtils]: 18: Hoare triple {849#(<= ~counter~0 1)} [91] L32-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {825#true} is VALID [2022-04-27 20:19:36,604 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {825#true} {849#(<= ~counter~0 1)} [97] __VERIFIER_assertEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,604 INFO L290 TraceCheckUtils]: 16: Hoare triple {825#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {825#true} is VALID [2022-04-27 20:19:36,604 INFO L290 TraceCheckUtils]: 15: Hoare triple {825#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {825#true} is VALID [2022-04-27 20:19:36,604 INFO L290 TraceCheckUtils]: 14: Hoare triple {825#true} [81] __VERIFIER_assertENTRY-->L12: 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] {825#true} is VALID [2022-04-27 20:19:36,605 INFO L272 TraceCheckUtils]: 13: Hoare triple {849#(<= ~counter~0 1)} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {825#true} is VALID [2022-04-27 20:19:36,605 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {825#true} {849#(<= ~counter~0 1)} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,605 INFO L290 TraceCheckUtils]: 11: Hoare triple {825#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {825#true} is VALID [2022-04-27 20:19:36,606 INFO L290 TraceCheckUtils]: 10: Hoare triple {825#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {825#true} is VALID [2022-04-27 20:19:36,606 INFO L290 TraceCheckUtils]: 9: Hoare triple {825#true} [81] __VERIFIER_assertENTRY-->L12: 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] {825#true} is VALID [2022-04-27 20:19:36,606 INFO L272 TraceCheckUtils]: 8: Hoare triple {849#(<= ~counter~0 1)} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {825#true} is VALID [2022-04-27 20:19:36,606 INFO L290 TraceCheckUtils]: 7: Hoare triple {849#(<= ~counter~0 1)} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,607 INFO L290 TraceCheckUtils]: 6: Hoare triple {833#(<= ~counter~0 0)} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {849#(<= ~counter~0 1)} is VALID [2022-04-27 20:19:36,607 INFO L290 TraceCheckUtils]: 5: Hoare triple {833#(<= ~counter~0 0)} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,608 INFO L272 TraceCheckUtils]: 4: Hoare triple {833#(<= ~counter~0 0)} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,608 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {833#(<= ~counter~0 0)} {825#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,608 INFO L290 TraceCheckUtils]: 2: Hoare triple {833#(<= ~counter~0 0)} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,609 INFO L290 TraceCheckUtils]: 1: Hoare triple {825#true} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {833#(<= ~counter~0 0)} is VALID [2022-04-27 20:19:36,609 INFO L272 TraceCheckUtils]: 0: Hoare triple {825#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {825#true} is VALID [2022-04-27 20:19:36,609 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-04-27 20:19:36,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 20:19:36,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108072886] [2022-04-27 20:19:36,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 20:19:36,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [929010650] [2022-04-27 20:19:36,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [929010650] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-27 20:19:36,610 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-27 20:19:36,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2022-04-27 20:19:36,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532888070] [2022-04-27 20:19:36,610 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-27 20:19:36,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 30 [2022-04-27 20:19:36,611 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 20:19:36,612 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-27 20:19:36,640 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:36,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 20:19:36,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 20:19:36,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 20:19:36,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-04-27 20:19:36,642 INFO L87 Difference]: Start difference. First operand 39 states and 45 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-27 20:19:36,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:36,732 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-04-27 20:19:36,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-04-27 20:19:36,732 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 30 [2022-04-27 20:19:36,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 20:19:36,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-27 20:19:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2022-04-27 20:19:36,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-27 20:19:36,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 42 transitions. [2022-04-27 20:19:36,736 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 6 states and 42 transitions. [2022-04-27 20:19:36,776 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 42 edges. 42 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:36,777 INFO L225 Difference]: With dead ends: 41 [2022-04-27 20:19:36,777 INFO L226 Difference]: Without dead ends: 41 [2022-04-27 20:19:36,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-04-27 20:19:36,779 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 20:19:36,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 79 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 20:19:36,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2022-04-27 20:19:36,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2022-04-27 20:19:36,792 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 20:19:36,792 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand has 41 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:36,794 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand has 41 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:36,794 INFO L87 Difference]: Start difference. First operand 41 states. Second operand has 41 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:36,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:36,798 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-04-27 20:19:36,799 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2022-04-27 20:19:36,800 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:36,800 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:36,801 INFO L74 IsIncluded]: Start isIncluded. First operand has 41 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 41 states. [2022-04-27 20:19:36,801 INFO L87 Difference]: Start difference. First operand has 41 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 41 states. [2022-04-27 20:19:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:36,803 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2022-04-27 20:19:36,803 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2022-04-27 20:19:36,804 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:36,804 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:36,804 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 20:19:36,804 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 20:19:36,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 24 states have (on average 1.125) internal successors, (27), 25 states have internal predecessors, (27), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:36,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2022-04-27 20:19:36,807 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 30 [2022-04-27 20:19:36,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 20:19:36,807 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2022-04-27 20:19:36,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 4 states have call successors, (9), 4 states have call predecessors, (9), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-04-27 20:19:36,807 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2022-04-27 20:19:36,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-27 20:19:36,808 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 20:19:36,808 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 20:19:36,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-27 20:19:37,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:37,024 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 20:19:37,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 20:19:37,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1698187712, now seen corresponding path program 1 times [2022-04-27 20:19:37,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 20:19:37,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461502189] [2022-04-27 20:19:37,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:37,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 20:19:37,043 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 20:19:37,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [433878794] [2022-04-27 20:19:37,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:37,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:37,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 20:19:37,053 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) [2022-04-27 20:19:37,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-27 20:19:37,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:37,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-27 20:19:37,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:37,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 20:19:37,269 INFO L272 TraceCheckUtils]: 0: Hoare triple {1175#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,270 INFO L290 TraceCheckUtils]: 1: Hoare triple {1175#true} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {1175#true} is VALID [2022-04-27 20:19:37,270 INFO L290 TraceCheckUtils]: 2: Hoare triple {1175#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,270 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1175#true} {1175#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,270 INFO L272 TraceCheckUtils]: 4: Hoare triple {1175#true} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,271 INFO L290 TraceCheckUtils]: 5: Hoare triple {1175#true} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {1195#(and (= main_~a~0 0) (= main_~t~0 1))} is VALID [2022-04-27 20:19:37,271 INFO L290 TraceCheckUtils]: 6: Hoare triple {1195#(and (= main_~a~0 0) (= main_~t~0 1))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1195#(and (= main_~a~0 0) (= main_~t~0 1))} is VALID [2022-04-27 20:19:37,272 INFO L290 TraceCheckUtils]: 7: Hoare triple {1195#(and (= main_~a~0 0) (= main_~t~0 1))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1195#(and (= main_~a~0 0) (= main_~t~0 1))} is VALID [2022-04-27 20:19:37,272 INFO L272 TraceCheckUtils]: 8: Hoare triple {1195#(and (= main_~a~0 0) (= main_~t~0 1))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1175#true} is VALID [2022-04-27 20:19:37,272 INFO L290 TraceCheckUtils]: 9: Hoare triple {1175#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1175#true} is VALID [2022-04-27 20:19:37,272 INFO L290 TraceCheckUtils]: 10: Hoare triple {1175#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,272 INFO L290 TraceCheckUtils]: 11: Hoare triple {1175#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,273 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {1175#true} {1195#(and (= main_~a~0 0) (= main_~t~0 1))} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1195#(and (= main_~a~0 0) (= main_~t~0 1))} is VALID [2022-04-27 20:19:37,273 INFO L272 TraceCheckUtils]: 13: Hoare triple {1195#(and (= main_~a~0 0) (= main_~t~0 1))} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1175#true} is VALID [2022-04-27 20:19:37,273 INFO L290 TraceCheckUtils]: 14: Hoare triple {1175#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1175#true} is VALID [2022-04-27 20:19:37,273 INFO L290 TraceCheckUtils]: 15: Hoare triple {1175#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,273 INFO L290 TraceCheckUtils]: 16: Hoare triple {1175#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,274 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {1175#true} {1195#(and (= main_~a~0 0) (= main_~t~0 1))} [97] __VERIFIER_assertEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1195#(and (= main_~a~0 0) (= main_~t~0 1))} is VALID [2022-04-27 20:19:37,274 INFO L272 TraceCheckUtils]: 18: Hoare triple {1195#(and (= main_~a~0 0) (= main_~t~0 1))} [91] L32-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {1175#true} is VALID [2022-04-27 20:19:37,274 INFO L290 TraceCheckUtils]: 19: Hoare triple {1175#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1175#true} is VALID [2022-04-27 20:19:37,274 INFO L290 TraceCheckUtils]: 20: Hoare triple {1175#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,274 INFO L290 TraceCheckUtils]: 21: Hoare triple {1175#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,275 INFO L284 TraceCheckUtils]: 22: Hoare quadruple {1175#true} {1195#(and (= main_~a~0 0) (= main_~t~0 1))} [98] __VERIFIER_assertEXIT-->L33: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {1195#(and (= main_~a~0 0) (= main_~t~0 1))} is VALID [2022-04-27 20:19:37,276 INFO L290 TraceCheckUtils]: 23: Hoare triple {1195#(and (= main_~a~0 0) (= main_~t~0 1))} [94] L33-->L30-3: Formula: (and (= v_main_~t~0_8 (+ v_main_~t~0_9 2)) (<= v_main_~s~0_10 v_main_~n~0_5) (= v_main_~s~0_9 (+ v_main_~s~0_10 v_main_~t~0_8)) (= v_main_~a~0_8 (+ v_main_~a~0_9 1))) InVars {main_~t~0=v_main_~t~0_9, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_10, main_~a~0=v_main_~a~0_9} OutVars{main_~t~0=v_main_~t~0_8, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_9, main_~a~0=v_main_~a~0_8} AuxVars[] AssignedVars[main_~t~0, main_~s~0, main_~a~0] {1250#(and (= (+ (- 2) main_~t~0) 1) (= (+ (- 1) main_~a~0) 0))} is VALID [2022-04-27 20:19:37,277 INFO L290 TraceCheckUtils]: 24: Hoare triple {1250#(and (= (+ (- 2) main_~t~0) 1) (= (+ (- 1) main_~a~0) 0))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1250#(and (= (+ (- 2) main_~t~0) 1) (= (+ (- 1) main_~a~0) 0))} is VALID [2022-04-27 20:19:37,278 INFO L290 TraceCheckUtils]: 25: Hoare triple {1250#(and (= (+ (- 2) main_~t~0) 1) (= (+ (- 1) main_~a~0) 0))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1250#(and (= (+ (- 2) main_~t~0) 1) (= (+ (- 1) main_~a~0) 0))} is VALID [2022-04-27 20:19:37,278 INFO L272 TraceCheckUtils]: 26: Hoare triple {1250#(and (= (+ (- 2) main_~t~0) 1) (= (+ (- 1) main_~a~0) 0))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1260#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 20:19:37,279 INFO L290 TraceCheckUtils]: 27: Hoare triple {1260#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L12: 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] {1264#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 20:19:37,279 INFO L290 TraceCheckUtils]: 28: Hoare triple {1264#(<= 1 __VERIFIER_assert_~cond)} [84] L12-->L13: 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[] {1176#false} is VALID [2022-04-27 20:19:37,280 INFO L290 TraceCheckUtils]: 29: Hoare triple {1176#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1176#false} is VALID [2022-04-27 20:19:37,280 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-04-27 20:19:37,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-27 20:19:37,438 INFO L290 TraceCheckUtils]: 29: Hoare triple {1176#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1176#false} is VALID [2022-04-27 20:19:37,438 INFO L290 TraceCheckUtils]: 28: Hoare triple {1264#(<= 1 __VERIFIER_assert_~cond)} [84] L12-->L13: 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[] {1176#false} is VALID [2022-04-27 20:19:37,440 INFO L290 TraceCheckUtils]: 27: Hoare triple {1260#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L12: 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] {1264#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 20:19:37,441 INFO L272 TraceCheckUtils]: 26: Hoare triple {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1260#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 20:19:37,441 INFO L290 TraceCheckUtils]: 25: Hoare triple {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} is VALID [2022-04-27 20:19:37,442 INFO L290 TraceCheckUtils]: 24: Hoare triple {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} is VALID [2022-04-27 20:19:37,443 INFO L290 TraceCheckUtils]: 23: Hoare triple {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [94] L33-->L30-3: Formula: (and (= v_main_~t~0_8 (+ v_main_~t~0_9 2)) (<= v_main_~s~0_10 v_main_~n~0_5) (= v_main_~s~0_9 (+ v_main_~s~0_10 v_main_~t~0_8)) (= v_main_~a~0_8 (+ v_main_~a~0_9 1))) InVars {main_~t~0=v_main_~t~0_9, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_10, main_~a~0=v_main_~a~0_9} OutVars{main_~t~0=v_main_~t~0_8, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_9, main_~a~0=v_main_~a~0_8} AuxVars[] AssignedVars[main_~t~0, main_~s~0, main_~a~0] {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} is VALID [2022-04-27 20:19:37,443 INFO L284 TraceCheckUtils]: 22: Hoare quadruple {1175#true} {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [98] __VERIFIER_assertEXIT-->L33: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} is VALID [2022-04-27 20:19:37,443 INFO L290 TraceCheckUtils]: 21: Hoare triple {1175#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,444 INFO L290 TraceCheckUtils]: 20: Hoare triple {1175#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,444 INFO L290 TraceCheckUtils]: 19: Hoare triple {1175#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1175#true} is VALID [2022-04-27 20:19:37,444 INFO L272 TraceCheckUtils]: 18: Hoare triple {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [91] L32-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {1175#true} is VALID [2022-04-27 20:19:37,444 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {1175#true} {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [97] __VERIFIER_assertEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} is VALID [2022-04-27 20:19:37,445 INFO L290 TraceCheckUtils]: 16: Hoare triple {1175#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,445 INFO L290 TraceCheckUtils]: 15: Hoare triple {1175#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,445 INFO L290 TraceCheckUtils]: 14: Hoare triple {1175#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1175#true} is VALID [2022-04-27 20:19:37,445 INFO L272 TraceCheckUtils]: 13: Hoare triple {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1175#true} is VALID [2022-04-27 20:19:37,446 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {1175#true} {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} is VALID [2022-04-27 20:19:37,446 INFO L290 TraceCheckUtils]: 11: Hoare triple {1175#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,446 INFO L290 TraceCheckUtils]: 10: Hoare triple {1175#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,446 INFO L290 TraceCheckUtils]: 9: Hoare triple {1175#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1175#true} is VALID [2022-04-27 20:19:37,446 INFO L272 TraceCheckUtils]: 8: Hoare triple {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1175#true} is VALID [2022-04-27 20:19:37,447 INFO L290 TraceCheckUtils]: 7: Hoare triple {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} is VALID [2022-04-27 20:19:37,447 INFO L290 TraceCheckUtils]: 6: Hoare triple {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} is VALID [2022-04-27 20:19:37,448 INFO L290 TraceCheckUtils]: 5: Hoare triple {1175#true} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {1280#(= main_~t~0 (+ (* main_~a~0 2) 1))} is VALID [2022-04-27 20:19:37,452 INFO L272 TraceCheckUtils]: 4: Hoare triple {1175#true} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,452 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1175#true} {1175#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,454 INFO L290 TraceCheckUtils]: 2: Hoare triple {1175#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,454 INFO L290 TraceCheckUtils]: 1: Hoare triple {1175#true} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {1175#true} is VALID [2022-04-27 20:19:37,455 INFO L272 TraceCheckUtils]: 0: Hoare triple {1175#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1175#true} is VALID [2022-04-27 20:19:37,455 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-04-27 20:19:37,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 20:19:37,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461502189] [2022-04-27 20:19:37,455 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 20:19:37,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433878794] [2022-04-27 20:19:37,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433878794] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-27 20:19:37,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-27 20:19:37,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-04-27 20:19:37,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678370485] [2022-04-27 20:19:37,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-27 20:19:37,457 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2022-04-27 20:19:37,457 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 20:19:37,457 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-27 20:19:37,477 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:37,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-27 20:19:37,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 20:19:37,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-27 20:19:37,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-27 20:19:37,478 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-27 20:19:37,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:37,590 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-04-27 20:19:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-27 20:19:37,591 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 30 [2022-04-27 20:19:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 20:19:37,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-27 20:19:37,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-04-27 20:19:37,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-27 20:19:37,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 31 transitions. [2022-04-27 20:19:37,593 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 31 transitions. [2022-04-27 20:19:37,619 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:37,620 INFO L225 Difference]: With dead ends: 45 [2022-04-27 20:19:37,620 INFO L226 Difference]: Without dead ends: 45 [2022-04-27 20:19:37,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-27 20:19:37,621 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-27 20:19:37,621 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 62 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-27 20:19:37,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-04-27 20:19:37,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-04-27 20:19:37,624 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 20:19:37,624 INFO L82 GeneralOperation]: Start isEquivalent. First operand 45 states. Second operand has 45 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:37,624 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand has 45 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:37,624 INFO L87 Difference]: Start difference. First operand 45 states. Second operand has 45 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:37,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:37,626 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-04-27 20:19:37,626 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-04-27 20:19:37,626 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:37,627 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:37,627 INFO L74 IsIncluded]: Start isIncluded. First operand has 45 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 45 states. [2022-04-27 20:19:37,627 INFO L87 Difference]: Start difference. First operand has 45 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) Second operand 45 states. [2022-04-27 20:19:37,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:37,629 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2022-04-27 20:19:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-04-27 20:19:37,629 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:37,629 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:37,629 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 20:19:37,629 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 20:19:37,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 27 states have (on average 1.1111111111111112) internal successors, (30), 28 states have internal predecessors, (30), 11 states have call successors, (11), 7 states have call predecessors, (11), 6 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-04-27 20:19:37,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 50 transitions. [2022-04-27 20:19:37,631 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 50 transitions. Word has length 30 [2022-04-27 20:19:37,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 20:19:37,631 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 50 transitions. [2022-04-27 20:19:37,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-04-27 20:19:37,631 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 50 transitions. [2022-04-27 20:19:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-04-27 20:19:37,632 INFO L187 NwaCegarLoop]: Found error trace [2022-04-27 20:19:37,632 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-27 20:19:37,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-27 20:19:37,851 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:37,851 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-27 20:19:37,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-27 20:19:37,852 INFO L85 PathProgramCache]: Analyzing trace with hash 888200606, now seen corresponding path program 2 times [2022-04-27 20:19:37,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-27 20:19:37,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016229560] [2022-04-27 20:19:37,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-27 20:19:37,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-27 20:19:37,873 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-27 20:19:37,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1276391330] [2022-04-27 20:19:37,873 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-27 20:19:37,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:37,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-27 20:19:37,878 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-04-27 20:19:37,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-04-27 20:19:37,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-27 20:19:37,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-27 20:19:37,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 15 conjunts are in the unsatisfiable core [2022-04-27 20:19:37,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-27 20:19:37,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-27 20:19:38,118 INFO L272 TraceCheckUtils]: 0: Hoare triple {1543#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,118 INFO L290 TraceCheckUtils]: 1: Hoare triple {1543#true} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {1543#true} is VALID [2022-04-27 20:19:38,119 INFO L290 TraceCheckUtils]: 2: Hoare triple {1543#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,119 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1543#true} {1543#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,119 INFO L272 TraceCheckUtils]: 4: Hoare triple {1543#true} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,119 INFO L290 TraceCheckUtils]: 5: Hoare triple {1543#true} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:38,120 INFO L290 TraceCheckUtils]: 6: Hoare triple {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:38,120 INFO L290 TraceCheckUtils]: 7: Hoare triple {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:38,121 INFO L272 TraceCheckUtils]: 8: Hoare triple {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1543#true} is VALID [2022-04-27 20:19:38,121 INFO L290 TraceCheckUtils]: 9: Hoare triple {1543#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1543#true} is VALID [2022-04-27 20:19:38,121 INFO L290 TraceCheckUtils]: 10: Hoare triple {1543#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,121 INFO L290 TraceCheckUtils]: 11: Hoare triple {1543#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,122 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {1543#true} {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:38,122 INFO L272 TraceCheckUtils]: 13: Hoare triple {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1543#true} is VALID [2022-04-27 20:19:38,123 INFO L290 TraceCheckUtils]: 14: Hoare triple {1543#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1543#true} is VALID [2022-04-27 20:19:38,123 INFO L290 TraceCheckUtils]: 15: Hoare triple {1543#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,123 INFO L290 TraceCheckUtils]: 16: Hoare triple {1543#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,123 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {1543#true} {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} [97] __VERIFIER_assertEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:38,124 INFO L272 TraceCheckUtils]: 18: Hoare triple {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} [91] L32-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {1543#true} is VALID [2022-04-27 20:19:38,124 INFO L290 TraceCheckUtils]: 19: Hoare triple {1543#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1543#true} is VALID [2022-04-27 20:19:38,124 INFO L290 TraceCheckUtils]: 20: Hoare triple {1543#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,124 INFO L290 TraceCheckUtils]: 21: Hoare triple {1543#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,125 INFO L284 TraceCheckUtils]: 22: Hoare quadruple {1543#true} {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} [98] __VERIFIER_assertEXIT-->L33: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} is VALID [2022-04-27 20:19:38,126 INFO L290 TraceCheckUtils]: 23: Hoare triple {1563#(and (= main_~a~0 0) (= main_~t~0 1) (= main_~s~0 1))} [94] L33-->L30-3: Formula: (and (= v_main_~t~0_8 (+ v_main_~t~0_9 2)) (<= v_main_~s~0_10 v_main_~n~0_5) (= v_main_~s~0_9 (+ v_main_~s~0_10 v_main_~t~0_8)) (= v_main_~a~0_8 (+ v_main_~a~0_9 1))) InVars {main_~t~0=v_main_~t~0_9, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_10, main_~a~0=v_main_~a~0_9} OutVars{main_~t~0=v_main_~t~0_8, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_9, main_~a~0=v_main_~a~0_8} AuxVars[] AssignedVars[main_~t~0, main_~s~0, main_~a~0] {1618#(and (= (+ (- 1) main_~a~0) 0) (= main_~s~0 4))} is VALID [2022-04-27 20:19:38,126 INFO L290 TraceCheckUtils]: 24: Hoare triple {1618#(and (= (+ (- 1) main_~a~0) 0) (= main_~s~0 4))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1618#(and (= (+ (- 1) main_~a~0) 0) (= main_~s~0 4))} is VALID [2022-04-27 20:19:38,127 INFO L290 TraceCheckUtils]: 25: Hoare triple {1618#(and (= (+ (- 1) main_~a~0) 0) (= main_~s~0 4))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1618#(and (= (+ (- 1) main_~a~0) 0) (= main_~s~0 4))} is VALID [2022-04-27 20:19:38,127 INFO L272 TraceCheckUtils]: 26: Hoare triple {1618#(and (= (+ (- 1) main_~a~0) 0) (= main_~s~0 4))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1543#true} is VALID [2022-04-27 20:19:38,127 INFO L290 TraceCheckUtils]: 27: Hoare triple {1543#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1543#true} is VALID [2022-04-27 20:19:38,127 INFO L290 TraceCheckUtils]: 28: Hoare triple {1543#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,127 INFO L290 TraceCheckUtils]: 29: Hoare triple {1543#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,128 INFO L284 TraceCheckUtils]: 30: Hoare quadruple {1543#true} {1618#(and (= (+ (- 1) main_~a~0) 0) (= main_~s~0 4))} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1618#(and (= (+ (- 1) main_~a~0) 0) (= main_~s~0 4))} is VALID [2022-04-27 20:19:38,129 INFO L272 TraceCheckUtils]: 31: Hoare triple {1618#(and (= (+ (- 1) main_~a~0) 0) (= main_~s~0 4))} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1643#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 20:19:38,129 INFO L290 TraceCheckUtils]: 32: Hoare triple {1643#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L12: 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] {1647#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 20:19:38,129 INFO L290 TraceCheckUtils]: 33: Hoare triple {1647#(<= 1 __VERIFIER_assert_~cond)} [84] L12-->L13: 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[] {1544#false} is VALID [2022-04-27 20:19:38,130 INFO L290 TraceCheckUtils]: 34: Hoare triple {1544#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1544#false} is VALID [2022-04-27 20:19:38,131 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-27 20:19:38,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-27 20:19:38,300 INFO L290 TraceCheckUtils]: 34: Hoare triple {1544#false} [88] L13-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1544#false} is VALID [2022-04-27 20:19:38,301 INFO L290 TraceCheckUtils]: 33: Hoare triple {1647#(<= 1 __VERIFIER_assert_~cond)} [84] L12-->L13: 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[] {1544#false} is VALID [2022-04-27 20:19:38,307 INFO L290 TraceCheckUtils]: 32: Hoare triple {1643#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L12: 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] {1647#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-27 20:19:38,308 INFO L272 TraceCheckUtils]: 31: Hoare triple {1663#(= (+ (* main_~a~0 2) (* main_~a~0 main_~a~0) 1) main_~s~0)} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1643#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-27 20:19:38,309 INFO L284 TraceCheckUtils]: 30: Hoare quadruple {1543#true} {1663#(= (+ (* main_~a~0 2) (* main_~a~0 main_~a~0) 1) main_~s~0)} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1663#(= (+ (* main_~a~0 2) (* main_~a~0 main_~a~0) 1) main_~s~0)} is VALID [2022-04-27 20:19:38,309 INFO L290 TraceCheckUtils]: 29: Hoare triple {1543#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,309 INFO L290 TraceCheckUtils]: 28: Hoare triple {1543#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,309 INFO L290 TraceCheckUtils]: 27: Hoare triple {1543#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1543#true} is VALID [2022-04-27 20:19:38,309 INFO L272 TraceCheckUtils]: 26: Hoare triple {1663#(= (+ (* main_~a~0 2) (* main_~a~0 main_~a~0) 1) main_~s~0)} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1543#true} is VALID [2022-04-27 20:19:38,310 INFO L290 TraceCheckUtils]: 25: Hoare triple {1663#(= (+ (* main_~a~0 2) (* main_~a~0 main_~a~0) 1) main_~s~0)} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1663#(= (+ (* main_~a~0 2) (* main_~a~0 main_~a~0) 1) main_~s~0)} is VALID [2022-04-27 20:19:38,310 INFO L290 TraceCheckUtils]: 24: Hoare triple {1663#(= (+ (* main_~a~0 2) (* main_~a~0 main_~a~0) 1) main_~s~0)} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1663#(= (+ (* main_~a~0 2) (* main_~a~0 main_~a~0) 1) main_~s~0)} is VALID [2022-04-27 20:19:38,331 INFO L290 TraceCheckUtils]: 23: Hoare triple {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} [94] L33-->L30-3: Formula: (and (= v_main_~t~0_8 (+ v_main_~t~0_9 2)) (<= v_main_~s~0_10 v_main_~n~0_5) (= v_main_~s~0_9 (+ v_main_~s~0_10 v_main_~t~0_8)) (= v_main_~a~0_8 (+ v_main_~a~0_9 1))) InVars {main_~t~0=v_main_~t~0_9, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_10, main_~a~0=v_main_~a~0_9} OutVars{main_~t~0=v_main_~t~0_8, main_~n~0=v_main_~n~0_5, main_~s~0=v_main_~s~0_9, main_~a~0=v_main_~a~0_8} AuxVars[] AssignedVars[main_~t~0, main_~s~0, main_~a~0] {1663#(= (+ (* main_~a~0 2) (* main_~a~0 main_~a~0) 1) main_~s~0)} is VALID [2022-04-27 20:19:38,332 INFO L284 TraceCheckUtils]: 22: Hoare quadruple {1543#true} {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} [98] __VERIFIER_assertEXIT-->L33: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} is VALID [2022-04-27 20:19:38,332 INFO L290 TraceCheckUtils]: 21: Hoare triple {1543#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,333 INFO L290 TraceCheckUtils]: 20: Hoare triple {1543#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,333 INFO L290 TraceCheckUtils]: 19: Hoare triple {1543#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1543#true} is VALID [2022-04-27 20:19:38,333 INFO L272 TraceCheckUtils]: 18: Hoare triple {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} [91] L32-->__VERIFIER_assertENTRY: Formula: (= (ite (= (+ (* v_main_~t~0_11 v_main_~t~0_11) (* v_main_~t~0_11 2) (* v_main_~s~0_12 (- 4)) 1) 0) 1 0) |v___VERIFIER_assert_#in~condInParam_3|) InVars {main_~t~0=v_main_~t~0_11, main_~s~0=v_main_~s~0_12} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_3|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~s~0] {1543#true} is VALID [2022-04-27 20:19:38,336 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {1543#true} {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} [97] __VERIFIER_assertEXIT-->L32: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} is VALID [2022-04-27 20:19:38,337 INFO L290 TraceCheckUtils]: 16: Hoare triple {1543#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,337 INFO L290 TraceCheckUtils]: 15: Hoare triple {1543#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,337 INFO L290 TraceCheckUtils]: 14: Hoare triple {1543#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1543#true} is VALID [2022-04-27 20:19:38,337 INFO L272 TraceCheckUtils]: 13: Hoare triple {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} [86] L31-1-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= v_main_~s~0_11 (let ((.cse0 (+ 1 v_main_~a~0_11))) (* .cse0 .cse0))) 1 0)) InVars {main_~s~0=v_main_~s~0_11, main_~a~0=v_main_~a~0_11} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~s~0, main_~a~0] {1543#true} is VALID [2022-04-27 20:19:38,338 INFO L284 TraceCheckUtils]: 12: Hoare quadruple {1543#true} {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} [96] __VERIFIER_assertEXIT-->L31-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} is VALID [2022-04-27 20:19:38,338 INFO L290 TraceCheckUtils]: 11: Hoare triple {1543#true} [90] L12-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,338 INFO L290 TraceCheckUtils]: 10: Hoare triple {1543#true} [85] L12-->L12-2: Formula: (not (= v___VERIFIER_assert_~cond_1 0)) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_1} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,338 INFO L290 TraceCheckUtils]: 9: Hoare triple {1543#true} [81] __VERIFIER_assertENTRY-->L12: 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] {1543#true} is VALID [2022-04-27 20:19:38,338 INFO L272 TraceCheckUtils]: 8: Hoare triple {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} [82] L31-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= v_main_~t~0_10 (+ (* 2 v_main_~a~0_10) 1)) 1 0)) InVars {main_~t~0=v_main_~t~0_10, main_~a~0=v_main_~a~0_10} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~t~0, main_~a~0] {1543#true} is VALID [2022-04-27 20:19:38,339 INFO L290 TraceCheckUtils]: 7: Hoare triple {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} [79] L30-1-->L31: Formula: (< |v_main_#t~post5_5| 2) InVars {main_#t~post5=|v_main_#t~post5_5|} OutVars{} AuxVars[] AssignedVars[main_#t~post5] {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} is VALID [2022-04-27 20:19:38,339 INFO L290 TraceCheckUtils]: 6: Hoare triple {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} [76] L30-3-->L30-1: Formula: (and (= |v_main_#t~post5_1| v_~counter~0_2) (= v_~counter~0_1 (+ |v_main_#t~post5_1| 1))) InVars {~counter~0=v_~counter~0_2} OutVars{~counter~0=v_~counter~0_1, main_#t~post5=|v_main_#t~post5_1|} AuxVars[] AssignedVars[~counter~0, main_#t~post5] {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} is VALID [2022-04-27 20:19:38,340 INFO L290 TraceCheckUtils]: 5: Hoare triple {1543#true} [73] mainENTRY-->L30-3: Formula: (and (= v_main_~s~0_3 1) (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~n~0_1 |v_main_#t~nondet4_2|) (= v_main_~t~0_3 1) (= v_main_~a~0_3 0)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~t~0=v_main_~t~0_3, main_~n~0=v_main_~n~0_1, main_~s~0=v_main_~s~0_3, main_~a~0=v_main_~a~0_3} AuxVars[] AssignedVars[main_#t~nondet4, main_~t~0, main_~n~0, main_~s~0, main_~a~0] {1688#(= (+ (* (+ main_~a~0 1) (+ main_~a~0 1)) (* main_~a~0 2) 3) (+ main_~t~0 main_~s~0 2))} is VALID [2022-04-27 20:19:38,340 INFO L272 TraceCheckUtils]: 4: Hoare triple {1543#true} [70] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,340 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1543#true} {1543#true} [95] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,340 INFO L290 TraceCheckUtils]: 2: Hoare triple {1543#true} [74] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,340 INFO L290 TraceCheckUtils]: 1: Hoare triple {1543#true} [71] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= v_~counter~0_3 0) (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (= (select |v_#length_1| 2) 11) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{~counter~0=v_~counter~0_3, #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[~counter~0, #NULL.offset, #NULL.base] {1543#true} is VALID [2022-04-27 20:19:38,340 INFO L272 TraceCheckUtils]: 0: Hoare triple {1543#true} [69] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1543#true} is VALID [2022-04-27 20:19:38,341 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-04-27 20:19:38,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-27 20:19:38,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016229560] [2022-04-27 20:19:38,341 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-27 20:19:38,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1276391330] [2022-04-27 20:19:38,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1276391330] provided 0 perfect and 2 imperfect interpolant sequences [2022-04-27 20:19:38,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-04-27 20:19:38,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2022-04-27 20:19:38,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819702967] [2022-04-27 20:19:38,342 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-04-27 20:19:38,342 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 35 [2022-04-27 20:19:38,342 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-27 20:19:38,343 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2022-04-27 20:19:38,382 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:38,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-04-27 20:19:38,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-27 20:19:38,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-04-27 20:19:38,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-04-27 20:19:38,383 INFO L87 Difference]: Start difference. First operand 45 states and 50 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2022-04-27 20:19:38,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:38,834 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2022-04-27 20:19:38,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-27 20:19:38,834 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 35 [2022-04-27 20:19:38,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-27 20:19:38,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2022-04-27 20:19:38,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 50 transitions. [2022-04-27 20:19:38,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2022-04-27 20:19:38,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 50 transitions. [2022-04-27 20:19:38,838 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 50 transitions. [2022-04-27 20:19:38,905 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 50 edges. 50 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-27 20:19:38,905 INFO L225 Difference]: With dead ends: 50 [2022-04-27 20:19:38,905 INFO L226 Difference]: Without dead ends: 0 [2022-04-27 20:19:38,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-04-27 20:19:38,906 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-04-27 20:19:38,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 62 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-04-27 20:19:38,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-27 20:19:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-27 20:19:38,906 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-27 20:19:38,907 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) [2022-04-27 20:19:38,907 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) [2022-04-27 20:19:38,907 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) [2022-04-27 20:19:38,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:38,907 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 20:19:38,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 20:19:38,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:38,907 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:38,907 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. [2022-04-27 20:19:38,907 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. [2022-04-27 20:19:38,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-27 20:19:38,908 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-27 20:19:38,908 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 20:19:38,908 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:38,908 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-27 20:19:38,908 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-27 20:19:38,908 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-27 20:19:38,908 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) [2022-04-27 20:19:38,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-27 20:19:38,908 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2022-04-27 20:19:38,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-27 20:19:38,909 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-27 20:19:38,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 5 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2022-04-27 20:19:38,909 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-27 20:19:38,909 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-27 20:19:38,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-27 20:19:38,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-04-27 20:19:39,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-27 20:19:39,127 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1] [2022-04-27 20:19:39,129 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-27 20:19:39,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.04 08:19:39 BasicIcfg [2022-04-27 20:19:39,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-27 20:19:39,131 INFO L158 Benchmark]: Toolchain (without parser) took 6988.38ms. Allocated memory was 176.2MB in the beginning and 212.9MB in the end (delta: 36.7MB). Free memory was 126.5MB in the beginning and 122.5MB in the end (delta: 4.0MB). Peak memory consumption was 41.5MB. Max. memory is 8.0GB. [2022-04-27 20:19:39,132 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-27 20:19:39,132 INFO L158 Benchmark]: CACSL2BoogieTranslator took 255.85ms. Allocated memory is still 176.2MB. Free memory was 126.2MB in the beginning and 151.1MB in the end (delta: -24.9MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. [2022-04-27 20:19:39,132 INFO L158 Benchmark]: Boogie Preprocessor took 34.28ms. Allocated memory is still 176.2MB. Free memory was 151.1MB in the beginning and 149.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 20:19:39,132 INFO L158 Benchmark]: RCFGBuilder took 337.24ms. Allocated memory is still 176.2MB. Free memory was 149.6MB in the beginning and 138.5MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-27 20:19:39,133 INFO L158 Benchmark]: IcfgTransformer took 23.19ms. Allocated memory is still 176.2MB. Free memory was 138.5MB in the beginning and 137.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-27 20:19:39,133 INFO L158 Benchmark]: TraceAbstraction took 6329.47ms. Allocated memory was 176.2MB in the beginning and 212.9MB in the end (delta: 36.7MB). Free memory was 136.9MB in the beginning and 122.5MB in the end (delta: 14.5MB). Peak memory consumption was 52.7MB. Max. memory is 8.0GB. [2022-04-27 20:19:39,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 176.2MB. Free memory is still 142.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 255.85ms. Allocated memory is still 176.2MB. Free memory was 126.2MB in the beginning and 151.1MB in the end (delta: -24.9MB). Peak memory consumption was 10.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.28ms. Allocated memory is still 176.2MB. Free memory was 151.1MB in the beginning and 149.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 337.24ms. Allocated memory is still 176.2MB. Free memory was 149.6MB in the beginning and 138.5MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 23.19ms. Allocated memory is still 176.2MB. Free memory was 138.5MB in the beginning and 137.5MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 6329.47ms. Allocated memory was 176.2MB in the beginning and 212.9MB in the end (delta: 36.7MB). Free memory was 136.9MB in the beginning and 122.5MB in the end (delta: 14.5MB). Peak memory consumption was 52.7MB. 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: 14]: 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, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 8, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 61 mSDsluCounter, 523 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 308 mSDsCounter, 68 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 376 IncrementalHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 68 mSolverCounterUnsat, 215 mSDtfsCounter, 376 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 253 GetRequests, 209 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=7, InterpolantAutomatonStates: 45, 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, 8 MinimizatonAttempts, 4 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 169 NumberOfCodeBlocks, 169 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 253 ConstructedInterpolants, 0 QuantifiedInterpolants, 822 SizeOfPredicates, 7 NumberOfNonLiveVariables, 508 ConjunctsInSsa, 47 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 149/164 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-04-27 20:19:39,150 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...