/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/ps4-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-14 22:58:25,177 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-14 22:58:25,178 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-14 22:58:25,238 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-14 22:58:25,238 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-14 22:58:25,239 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-14 22:58:25,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-14 22:58:25,245 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-14 22:58:25,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-14 22:58:25,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-14 22:58:25,252 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-14 22:58:25,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-14 22:58:25,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-14 22:58:25,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-14 22:58:25,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-14 22:58:25,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-14 22:58:25,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-14 22:58:25,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-14 22:58:25,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-14 22:58:25,268 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-14 22:58:25,269 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-14 22:58:25,270 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-14 22:58:25,271 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-14 22:58:25,271 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-14 22:58:25,273 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-14 22:58:25,276 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-14 22:58:25,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-14 22:58:25,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-14 22:58:25,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-14 22:58:25,286 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-14 22:58:25,301 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-14 22:58:25,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-14 22:58:25,302 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-14 22:58:25,302 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-14 22:58:25,302 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-14 22:58:25,303 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-14 22:58:25,303 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-14 22:58:25,303 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-14 22:58:25,303 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-14 22:58:25,304 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-14 22:58:25,304 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-14 22:58:25,304 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-14 22:58:25,304 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-14 22:58:25,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-14 22:58:25,305 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-14 22:58:25,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-14 22:58:25,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-14 22:58:25,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-14 22:58:25,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 22:58:25,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-14 22:58:25,305 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-14 22:58:25,306 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-14 22:58:25,306 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-14 22:58:25,485 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-14 22:58:25,504 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-14 22:58:25,506 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-14 22:58:25,507 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-14 22:58:25,508 INFO L275 PluginConnector]: CDTParser initialized [2022-04-14 22:58:25,509 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound1.c [2022-04-14 22:58:25,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f523521f/fd645e3bb9c44dbba9559ceb3d093a30/FLAGef6a4ea65 [2022-04-14 22:58:25,912 INFO L306 CDTParser]: Found 1 translation units. [2022-04-14 22:58:25,912 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound1.c [2022-04-14 22:58:25,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f523521f/fd645e3bb9c44dbba9559ceb3d093a30/FLAGef6a4ea65 [2022-04-14 22:58:25,939 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f523521f/fd645e3bb9c44dbba9559ceb3d093a30 [2022-04-14 22:58:25,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-14 22:58:25,942 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-14 22:58:25,944 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-14 22:58:25,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-14 22:58:25,947 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-14 22:58:25,948 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 10:58:25" (1/1) ... [2022-04-14 22:58:25,949 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da20a59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:25, skipping insertion in model container [2022-04-14 22:58:25,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 10:58:25" (1/1) ... [2022-04-14 22:58:25,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-14 22:58:25,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-14 22:58:26,139 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/ps4-ll_valuebound1.c[458,471] [2022-04-14 22:58:26,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 22:58:26,162 INFO L203 MainTranslator]: Completed pre-run [2022-04-14 22:58:26,172 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/ps4-ll_valuebound1.c[458,471] [2022-04-14 22:58:26,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 22:58:26,188 INFO L208 MainTranslator]: Completed translation [2022-04-14 22:58:26,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26 WrapperNode [2022-04-14 22:58:26,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-14 22:58:26,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-14 22:58:26,190 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-14 22:58:26,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-14 22:58:26,198 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26" (1/1) ... [2022-04-14 22:58:26,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26" (1/1) ... [2022-04-14 22:58:26,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26" (1/1) ... [2022-04-14 22:58:26,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26" (1/1) ... [2022-04-14 22:58:26,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26" (1/1) ... [2022-04-14 22:58:26,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26" (1/1) ... [2022-04-14 22:58:26,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26" (1/1) ... [2022-04-14 22:58:26,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-14 22:58:26,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-14 22:58:26,213 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-14 22:58:26,213 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-14 22:58:26,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26" (1/1) ... [2022-04-14 22:58:26,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 22:58:26,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:58:26,244 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) [2022-04-14 22:58:26,269 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 [2022-04-14 22:58:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-14 22:58:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-14 22:58:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-14 22:58:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-14 22:58:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-14 22:58:26,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-14 22:58:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-14 22:58:26,284 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-14 22:58:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-14 22:58:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-14 22:58:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-14 22:58:26,337 INFO L234 CfgBuilder]: Building ICFG [2022-04-14 22:58:26,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-14 22:58:26,487 INFO L275 CfgBuilder]: Performing block encoding [2022-04-14 22:58:26,492 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-14 22:58:26,492 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-14 22:58:26,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:58:26 BoogieIcfgContainer [2022-04-14 22:58:26,494 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-14 22:58:26,495 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-14 22:58:26,495 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-14 22:58:26,496 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-14 22:58:26,498 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:58:26" (1/1) ... [2022-04-14 22:58:26,500 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-14 22:58:26,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 10:58:26 BasicIcfg [2022-04-14 22:58:26,517 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-14 22:58:26,518 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-14 22:58:26,519 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-14 22:58:26,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-14 22:58:26,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 10:58:25" (1/4) ... [2022-04-14 22:58:26,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254f06d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 10:58:26, skipping insertion in model container [2022-04-14 22:58:26,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 10:58:26" (2/4) ... [2022-04-14 22:58:26,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254f06d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 10:58:26, skipping insertion in model container [2022-04-14 22:58:26,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 10:58:26" (3/4) ... [2022-04-14 22:58:26,523 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@254f06d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 10:58:26, skipping insertion in model container [2022-04-14 22:58:26,523 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 10:58:26" (4/4) ... [2022-04-14 22:58:26,523 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound1.cJordan [2022-04-14 22:58:26,527 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-14 22:58:26,527 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-14 22:58:26,562 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-14 22:58:26,567 INFO L340 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=ForwardPredicates, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP [2022-04-14 22:58:26,567 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-14 22:58:26,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-04-14 22:58:26,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-14 22:58:26,587 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:58:26,587 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:58:26,588 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:58:26,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:58:26,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1885409022, now seen corresponding path program 1 times [2022-04-14 22:58:26,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:58:26,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375417491] [2022-04-14 22:58:26,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:58:26,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:58:26,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:58:26,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 22:58:26,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:58:26,804 INFO L290 TraceCheckUtils]: 0: Hoare triple {40#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {31#true} is VALID [2022-04-14 22:58:26,804 INFO L290 TraceCheckUtils]: 1: Hoare triple {31#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:58:26,805 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {31#true} {31#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:58:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-14 22:58:26,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:58:26,815 INFO L290 TraceCheckUtils]: 0: Hoare triple {31#true} [71] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {31#true} is VALID [2022-04-14 22:58:26,815 INFO L290 TraceCheckUtils]: 1: Hoare triple {31#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:58:26,816 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#false} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:58:26,816 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#false} {31#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {32#false} is VALID [2022-04-14 22:58:26,822 INFO L272 TraceCheckUtils]: 0: Hoare triple {31#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {40#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 22:58:26,823 INFO L290 TraceCheckUtils]: 1: Hoare triple {40#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {31#true} is VALID [2022-04-14 22:58:26,823 INFO L290 TraceCheckUtils]: 2: Hoare triple {31#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:58:26,824 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {31#true} {31#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:58:26,824 INFO L272 TraceCheckUtils]: 4: Hoare triple {31#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-14 22:58:26,824 INFO L290 TraceCheckUtils]: 5: Hoare triple {31#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {31#true} is VALID [2022-04-14 22:58:26,825 INFO L272 TraceCheckUtils]: 6: Hoare triple {31#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {31#true} is VALID [2022-04-14 22:58:26,826 INFO L290 TraceCheckUtils]: 7: Hoare triple {31#true} [71] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {31#true} is VALID [2022-04-14 22:58:26,827 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:58:26,828 INFO L290 TraceCheckUtils]: 9: Hoare triple {32#false} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:58:26,828 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {32#false} {31#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {32#false} is VALID [2022-04-14 22:58:26,828 INFO L290 TraceCheckUtils]: 11: Hoare triple {32#false} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {32#false} is VALID [2022-04-14 22:58:26,829 INFO L290 TraceCheckUtils]: 12: Hoare triple {32#false} [72] L27-2-->L27-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:58:26,829 INFO L272 TraceCheckUtils]: 13: Hoare triple {32#false} [77] L27-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~k~0_9 v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 v_main_~y~0_9))) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_9, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {32#false} is VALID [2022-04-14 22:58:26,829 INFO L290 TraceCheckUtils]: 14: Hoare triple {32#false} [81] __VERIFIER_assertENTRY-->L10: 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] {32#false} is VALID [2022-04-14 22:58:26,829 INFO L290 TraceCheckUtils]: 15: Hoare triple {32#false} [85] L10-->L11: 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[] {32#false} is VALID [2022-04-14 22:58:26,830 INFO L290 TraceCheckUtils]: 16: Hoare triple {32#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-14 22:58:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:58:26,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:58:26,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375417491] [2022-04-14 22:58:26,832 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375417491] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:58:26,833 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:58:26,833 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-14 22:58:26,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404760795] [2022-04-14 22:58:26,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:58:26,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-14 22:58:26,842 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:58:26,845 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:26,869 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:58:26,870 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-14 22:58:26,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:58:26,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-14 22:58:26,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 22:58:26,895 INFO L87 Difference]: Start difference. First operand has 28 states, 16 states have (on average 1.375) internal successors, (22), 17 states have internal predecessors, (22), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:27,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:58:27,008 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2022-04-14 22:58:27,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-14 22:58:27,008 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-14 22:58:27,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:58:27,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2022-04-14 22:58:27,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:27,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 34 transitions. [2022-04-14 22:58:27,031 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 34 transitions. [2022-04-14 22:58:27,101 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:58:27,108 INFO L225 Difference]: With dead ends: 28 [2022-04-14 22:58:27,108 INFO L226 Difference]: Without dead ends: 23 [2022-04-14 22:58:27,110 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 22:58:27,113 INFO L913 BasicCegarLoop]: 26 mSDtfsCounter, 15 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:58:27,113 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 29 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:58:27,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-04-14 22:58:27,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-04-14 22:58:27,148 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:58:27,148 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:58:27,149 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:58:27,154 INFO L87 Difference]: Start difference. First operand 23 states. Second operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:58:27,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:58:27,159 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-04-14 22:58:27,159 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-04-14 22:58:27,159 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:58:27,160 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:58:27,160 INFO L74 IsIncluded]: Start isIncluded. First operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 23 states. [2022-04-14 22:58:27,160 INFO L87 Difference]: Start difference. First operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 23 states. [2022-04-14 22:58:27,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:58:27,164 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-04-14 22:58:27,164 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-04-14 22:58:27,164 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:58:27,164 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:58:27,165 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:58:27,165 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:58:27,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:58:27,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-04-14 22:58:27,171 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 17 [2022-04-14 22:58:27,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:58:27,171 INFO L478 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-04-14 22:58:27,171 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:27,172 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-04-14 22:58:27,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-14 22:58:27,172 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:58:27,172 INFO L499 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:58:27,173 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-14 22:58:27,173 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:58:27,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:58:27,174 INFO L85 PathProgramCache]: Analyzing trace with hash 603980644, now seen corresponding path program 1 times [2022-04-14 22:58:27,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:58:27,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048474979] [2022-04-14 22:58:27,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:58:27,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:58:27,231 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:58:27,232 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [606060302] [2022-04-14 22:58:27,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:58:27,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:58:27,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:58:27,235 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) [2022-04-14 22:58:27,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-14 22:58:27,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:58:27,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-14 22:58:27,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:58:27,326 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:58:27,480 INFO L272 TraceCheckUtils]: 0: Hoare triple {140#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:58:27,481 INFO L290 TraceCheckUtils]: 1: Hoare triple {140#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {140#true} is VALID [2022-04-14 22:58:27,481 INFO L290 TraceCheckUtils]: 2: Hoare triple {140#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:58:27,481 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {140#true} {140#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:58:27,481 INFO L272 TraceCheckUtils]: 4: Hoare triple {140#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:58:27,482 INFO L290 TraceCheckUtils]: 5: Hoare triple {140#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {140#true} is VALID [2022-04-14 22:58:27,482 INFO L272 TraceCheckUtils]: 6: Hoare triple {140#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {140#true} is VALID [2022-04-14 22:58:27,482 INFO L290 TraceCheckUtils]: 7: Hoare triple {140#true} [71] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {140#true} is VALID [2022-04-14 22:58:27,482 INFO L290 TraceCheckUtils]: 8: Hoare triple {140#true} [76] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:58:27,482 INFO L290 TraceCheckUtils]: 9: Hoare triple {140#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {140#true} is VALID [2022-04-14 22:58:27,482 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {140#true} {140#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {140#true} is VALID [2022-04-14 22:58:27,483 INFO L290 TraceCheckUtils]: 11: Hoare triple {140#true} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {178#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:58:27,484 INFO L290 TraceCheckUtils]: 12: Hoare triple {178#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {178#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:58:27,485 INFO L272 TraceCheckUtils]: 13: Hoare triple {178#(and (= main_~x~0 0) (= main_~y~0 0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {185#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:58:27,485 INFO L290 TraceCheckUtils]: 14: Hoare triple {185#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L10: 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] {189#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:58:27,486 INFO L290 TraceCheckUtils]: 15: Hoare triple {189#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: 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[] {141#false} is VALID [2022-04-14 22:58:27,486 INFO L290 TraceCheckUtils]: 16: Hoare triple {141#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {141#false} is VALID [2022-04-14 22:58:27,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:58:27,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-14 22:58:27,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:58:27,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048474979] [2022-04-14 22:58:27,487 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:58:27,487 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606060302] [2022-04-14 22:58:27,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606060302] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:58:27,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:58:27,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-14 22:58:27,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443739019] [2022-04-14 22:58:27,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:58:27,489 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), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-14 22:58:27,489 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:58:27,489 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), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:27,504 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:58:27,505 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-14 22:58:27,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:58:27,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-14 22:58:27,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-14 22:58:27,506 INFO L87 Difference]: Start difference. First operand 23 states and 25 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), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:27,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:58:27,803 INFO L93 Difference]: Finished difference Result 32 states and 36 transitions. [2022-04-14 22:58:27,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-14 22:58:27,804 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), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2022-04-14 22:58:27,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:58:27,804 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), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:27,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2022-04-14 22:58:27,807 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), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:27,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2022-04-14 22:58:27,809 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 37 transitions. [2022-04-14 22:58:27,851 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:58:27,853 INFO L225 Difference]: With dead ends: 32 [2022-04-14 22:58:27,853 INFO L226 Difference]: Without dead ends: 30 [2022-04-14 22:58:27,853 INFO L912 BasicCegarLoop]: 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 [2022-04-14 22:58:27,854 INFO L913 BasicCegarLoop]: 22 mSDtfsCounter, 6 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:58:27,855 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [8 Valid, 77 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:58:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-04-14 22:58:27,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-04-14 22:58:27,858 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:58:27,859 INFO L82 GeneralOperation]: Start isEquivalent. First operand 30 states. Second operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:58:27,859 INFO L74 IsIncluded]: Start isIncluded. First operand 30 states. Second operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:58:27,859 INFO L87 Difference]: Start difference. First operand 30 states. Second operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:58:27,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:58:27,862 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-04-14 22:58:27,862 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-04-14 22:58:27,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:58:27,862 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:58:27,863 INFO L74 IsIncluded]: Start isIncluded. First operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 30 states. [2022-04-14 22:58:27,863 INFO L87 Difference]: Start difference. First operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 30 states. [2022-04-14 22:58:27,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:58:27,865 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-04-14 22:58:27,865 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-04-14 22:58:27,866 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:58:27,866 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:58:27,866 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:58:27,866 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:58:27,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:58:27,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-04-14 22:58:27,868 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2022-04-14 22:58:27,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:58:27,869 INFO L478 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-04-14 22:58:27,869 INFO L479 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), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-14 22:58:27,869 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-04-14 22:58:27,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-14 22:58:27,870 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:58:27,870 INFO L499 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:58:27,895 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-04-14 22:58:28,086 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:58:28,086 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:58:28,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:58:28,087 INFO L85 PathProgramCache]: Analyzing trace with hash -169450186, now seen corresponding path program 1 times [2022-04-14 22:58:28,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:58:28,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130155917] [2022-04-14 22:58:28,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:58:28,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:58:28,102 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:58:28,102 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817533873] [2022-04-14 22:58:28,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:58:28,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:58:28,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:58:28,111 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) [2022-04-14 22:58:28,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-14 22:58:28,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:58:28,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-14 22:58:28,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:58:28,164 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:58:28,289 INFO L272 TraceCheckUtils]: 0: Hoare triple {319#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,289 INFO L290 TraceCheckUtils]: 1: Hoare triple {319#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {319#true} is VALID [2022-04-14 22:58:28,289 INFO L290 TraceCheckUtils]: 2: Hoare triple {319#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,289 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {319#true} {319#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,290 INFO L272 TraceCheckUtils]: 4: Hoare triple {319#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,290 INFO L290 TraceCheckUtils]: 5: Hoare triple {319#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {319#true} is VALID [2022-04-14 22:58:28,290 INFO L272 TraceCheckUtils]: 6: Hoare triple {319#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {319#true} is VALID [2022-04-14 22:58:28,290 INFO L290 TraceCheckUtils]: 7: Hoare triple {319#true} [71] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {319#true} is VALID [2022-04-14 22:58:28,290 INFO L290 TraceCheckUtils]: 8: Hoare triple {319#true} [76] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,290 INFO L290 TraceCheckUtils]: 9: Hoare triple {319#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,291 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {319#true} {319#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {319#true} is VALID [2022-04-14 22:58:28,294 INFO L290 TraceCheckUtils]: 11: Hoare triple {319#true} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {357#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:58:28,295 INFO L290 TraceCheckUtils]: 12: Hoare triple {357#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {357#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:58:28,295 INFO L272 TraceCheckUtils]: 13: Hoare triple {357#(and (= main_~x~0 0) (= main_~y~0 0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {319#true} is VALID [2022-04-14 22:58:28,296 INFO L290 TraceCheckUtils]: 14: Hoare triple {319#true} [81] __VERIFIER_assertENTRY-->L10: 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] {319#true} is VALID [2022-04-14 22:58:28,296 INFO L290 TraceCheckUtils]: 15: Hoare triple {319#true} [86] L10-->L10-2: 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[] {319#true} is VALID [2022-04-14 22:58:28,296 INFO L290 TraceCheckUtils]: 16: Hoare triple {319#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,297 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {319#true} {357#(and (= main_~x~0 0) (= main_~y~0 0))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {357#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:58:28,297 INFO L290 TraceCheckUtils]: 18: Hoare triple {357#(and (= main_~x~0 0) (= main_~y~0 0))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {379#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} is VALID [2022-04-14 22:58:28,298 INFO L290 TraceCheckUtils]: 19: Hoare triple {379#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {379#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} is VALID [2022-04-14 22:58:28,299 INFO L272 TraceCheckUtils]: 20: Hoare triple {379#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {386#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:58:28,299 INFO L290 TraceCheckUtils]: 21: Hoare triple {386#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L10: 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] {390#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:58:28,300 INFO L290 TraceCheckUtils]: 22: Hoare triple {390#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: 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[] {320#false} is VALID [2022-04-14 22:58:28,300 INFO L290 TraceCheckUtils]: 23: Hoare triple {320#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {320#false} is VALID [2022-04-14 22:58:28,300 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-14 22:58:28,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 22:58:28,527 INFO L290 TraceCheckUtils]: 23: Hoare triple {320#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {320#false} is VALID [2022-04-14 22:58:28,527 INFO L290 TraceCheckUtils]: 22: Hoare triple {390#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: 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[] {320#false} is VALID [2022-04-14 22:58:28,528 INFO L290 TraceCheckUtils]: 21: Hoare triple {386#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L10: 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] {390#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:58:28,529 INFO L272 TraceCheckUtils]: 20: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {386#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:58:28,530 INFO L290 TraceCheckUtils]: 19: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:58:28,803 INFO L290 TraceCheckUtils]: 18: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:58:28,804 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {319#true} {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:58:28,805 INFO L290 TraceCheckUtils]: 16: Hoare triple {319#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,805 INFO L290 TraceCheckUtils]: 15: Hoare triple {319#true} [86] L10-->L10-2: 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[] {319#true} is VALID [2022-04-14 22:58:28,805 INFO L290 TraceCheckUtils]: 14: Hoare triple {319#true} [81] __VERIFIER_assertENTRY-->L10: 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] {319#true} is VALID [2022-04-14 22:58:28,805 INFO L272 TraceCheckUtils]: 13: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {319#true} is VALID [2022-04-14 22:58:28,806 INFO L290 TraceCheckUtils]: 12: Hoare triple {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:58:28,807 INFO L290 TraceCheckUtils]: 11: Hoare triple {319#true} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {406#(= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* (* main_~y~0 main_~y~0 main_~y~0) 2)) (* main_~x~0 4))} is VALID [2022-04-14 22:58:28,807 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {319#true} {319#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {319#true} is VALID [2022-04-14 22:58:28,807 INFO L290 TraceCheckUtils]: 9: Hoare triple {319#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,807 INFO L290 TraceCheckUtils]: 8: Hoare triple {319#true} [76] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,807 INFO L290 TraceCheckUtils]: 7: Hoare triple {319#true} [71] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {319#true} is VALID [2022-04-14 22:58:28,808 INFO L272 TraceCheckUtils]: 6: Hoare triple {319#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {319#true} is VALID [2022-04-14 22:58:28,808 INFO L290 TraceCheckUtils]: 5: Hoare triple {319#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {319#true} is VALID [2022-04-14 22:58:28,808 INFO L272 TraceCheckUtils]: 4: Hoare triple {319#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,808 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {319#true} {319#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,808 INFO L290 TraceCheckUtils]: 2: Hoare triple {319#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,809 INFO L290 TraceCheckUtils]: 1: Hoare triple {319#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {319#true} is VALID [2022-04-14 22:58:28,809 INFO L272 TraceCheckUtils]: 0: Hoare triple {319#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {319#true} is VALID [2022-04-14 22:58:28,809 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-14 22:58:28,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:58:28,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130155917] [2022-04-14 22:58:28,810 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:58:28,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817533873] [2022-04-14 22:58:28,810 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817533873] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-14 22:58:28,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-14 22:58:28,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-04-14 22:58:28,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [379299209] [2022-04-14 22:58:28,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:58:28,811 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 24 [2022-04-14 22:58:28,811 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:58:28,812 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:58:29,334 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:58:29,335 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-14 22:58:29,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:58:29,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-14 22:58:29,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-04-14 22:58:29,336 INFO L87 Difference]: Start difference. First operand 30 states and 32 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:58:29,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:58:29,444 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-04-14 22:58:29,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-14 22:58:29,444 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 24 [2022-04-14 22:58:29,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:58:29,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:58:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2022-04-14 22:58:29,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:58:29,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 29 transitions. [2022-04-14 22:58:29,448 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 29 transitions. [2022-04-14 22:58:29,930 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:58:29,931 INFO L225 Difference]: With dead ends: 34 [2022-04-14 22:58:29,931 INFO L226 Difference]: Without dead ends: 31 [2022-04-14 22:58:29,932 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-04-14 22:58:29,933 INFO L913 BasicCegarLoop]: 21 mSDtfsCounter, 6 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:58:29,933 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 70 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:58:29,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-04-14 22:58:29,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-04-14 22:58:29,936 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:58:29,936 INFO L82 GeneralOperation]: Start isEquivalent. First operand 31 states. Second operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:58:29,936 INFO L74 IsIncluded]: Start isIncluded. First operand 31 states. Second operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:58:29,937 INFO L87 Difference]: Start difference. First operand 31 states. Second operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:58:29,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:58:29,938 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-04-14 22:58:29,939 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-04-14 22:58:29,941 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:58:29,941 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:58:29,943 INFO L74 IsIncluded]: Start isIncluded. First operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 31 states. [2022-04-14 22:58:29,944 INFO L87 Difference]: Start difference. First operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand 31 states. [2022-04-14 22:58:29,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:58:29,949 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-04-14 22:58:29,949 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-04-14 22:58:29,953 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:58:29,953 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:58:29,953 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:58:29,954 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:58:29,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 6 states have call successors, (6), 6 states have call predecessors, (6), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-04-14 22:58:29,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2022-04-14 22:58:29,955 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 24 [2022-04-14 22:58:29,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:58:29,955 INFO L478 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2022-04-14 22:58:29,955 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-04-14 22:58:29,956 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-04-14 22:58:29,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-14 22:58:29,957 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:58:29,957 INFO L499 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:58:29,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-14 22:58:30,171 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-14 22:58:30,172 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:58:30,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:58:30,172 INFO L85 PathProgramCache]: Analyzing trace with hash -434891502, now seen corresponding path program 1 times [2022-04-14 22:58:30,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:58:30,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202777193] [2022-04-14 22:58:30,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:58:30,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:58:30,198 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:58:30,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1051209640] [2022-04-14 22:58:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:58:30,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:58:30,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:58:30,204 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) [2022-04-14 22:58:30,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-14 22:58:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:58:30,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 19 conjunts are in the unsatisfiable core [2022-04-14 22:58:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:58:30,255 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:58:30,697 INFO L272 TraceCheckUtils]: 0: Hoare triple {598#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:58:30,698 INFO L290 TraceCheckUtils]: 1: Hoare triple {598#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {598#true} is VALID [2022-04-14 22:58:30,698 INFO L290 TraceCheckUtils]: 2: Hoare triple {598#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:58:30,698 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {598#true} {598#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:58:30,698 INFO L272 TraceCheckUtils]: 4: Hoare triple {598#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:58:30,698 INFO L290 TraceCheckUtils]: 5: Hoare triple {598#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {598#true} is VALID [2022-04-14 22:58:30,698 INFO L272 TraceCheckUtils]: 6: Hoare triple {598#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {598#true} is VALID [2022-04-14 22:58:30,699 INFO L290 TraceCheckUtils]: 7: Hoare triple {598#true} [71] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {598#true} is VALID [2022-04-14 22:58:30,699 INFO L290 TraceCheckUtils]: 8: Hoare triple {598#true} [76] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:58:30,699 INFO L290 TraceCheckUtils]: 9: Hoare triple {598#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:58:30,699 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {598#true} {598#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {598#true} is VALID [2022-04-14 22:58:30,700 INFO L290 TraceCheckUtils]: 11: Hoare triple {598#true} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {636#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:58:30,703 INFO L290 TraceCheckUtils]: 12: Hoare triple {636#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {636#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:58:30,704 INFO L272 TraceCheckUtils]: 13: Hoare triple {636#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {598#true} is VALID [2022-04-14 22:58:30,704 INFO L290 TraceCheckUtils]: 14: Hoare triple {598#true} [81] __VERIFIER_assertENTRY-->L10: 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] {598#true} is VALID [2022-04-14 22:58:30,704 INFO L290 TraceCheckUtils]: 15: Hoare triple {598#true} [86] L10-->L10-2: 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[] {598#true} is VALID [2022-04-14 22:58:30,704 INFO L290 TraceCheckUtils]: 16: Hoare triple {598#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {598#true} is VALID [2022-04-14 22:58:30,706 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {598#true} {636#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {636#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-14 22:58:30,707 INFO L290 TraceCheckUtils]: 18: Hoare triple {636#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {658#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 (* main_~y~0 main_~y~0 main_~y~0)) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-14 22:58:30,708 INFO L290 TraceCheckUtils]: 19: Hoare triple {658#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 (* main_~y~0 main_~y~0 main_~y~0)) (< 0 main_~k~0) (<= main_~c~0 1))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {658#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 (* main_~y~0 main_~y~0 main_~y~0)) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-14 22:58:30,709 INFO L272 TraceCheckUtils]: 20: Hoare triple {658#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 (* main_~y~0 main_~y~0 main_~y~0)) (< 0 main_~k~0) (<= main_~c~0 1))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {598#true} is VALID [2022-04-14 22:58:30,709 INFO L290 TraceCheckUtils]: 21: Hoare triple {598#true} [81] __VERIFIER_assertENTRY-->L10: 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] {668#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:58:30,711 INFO L290 TraceCheckUtils]: 22: Hoare triple {668#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} [86] L10-->L10-2: 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[] {672#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:58:30,711 INFO L290 TraceCheckUtils]: 23: Hoare triple {672#(not (= |__VERIFIER_assert_#in~cond| 0))} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {672#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-14 22:58:30,713 INFO L284 TraceCheckUtils]: 24: Hoare quadruple {672#(not (= |__VERIFIER_assert_#in~cond| 0))} {658#(and (= (+ (- 1) main_~y~0) 0) (<= main_~x~0 (* main_~y~0 main_~y~0 main_~y~0)) (< 0 main_~k~0) (<= main_~c~0 1))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {679#(and (= main_~y~0 1) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-14 22:58:30,715 INFO L290 TraceCheckUtils]: 25: Hoare triple {679#(and (= main_~y~0 1) (< 0 main_~k~0) (<= main_~c~0 1))} [82] L28-1-->L27-3: Formula: (not (< v_main_~c~0_3 v_main_~k~0_5)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} AuxVars[] AssignedVars[] {683#(and (<= main_~k~0 1) (= main_~y~0 1) (< 0 main_~k~0))} is VALID [2022-04-14 22:58:30,716 INFO L272 TraceCheckUtils]: 26: Hoare triple {683#(and (<= main_~k~0 1) (= main_~y~0 1) (< 0 main_~k~0))} [77] L27-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~k~0_9 v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 v_main_~y~0_9))) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_9, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {687#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 22:58:30,728 INFO L290 TraceCheckUtils]: 27: Hoare triple {687#(<= 1 |__VERIFIER_assert_#in~cond|)} [81] __VERIFIER_assertENTRY-->L10: 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] {691#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 22:58:30,729 INFO L290 TraceCheckUtils]: 28: Hoare triple {691#(<= 1 __VERIFIER_assert_~cond)} [85] L10-->L11: 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[] {599#false} is VALID [2022-04-14 22:58:30,730 INFO L290 TraceCheckUtils]: 29: Hoare triple {599#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {599#false} is VALID [2022-04-14 22:58:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-14 22:58:30,730 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 22:59:02,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:59:02,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202777193] [2022-04-14 22:59:02,747 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:59:02,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1051209640] [2022-04-14 22:59:02,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1051209640] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-14 22:59:02,747 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-04-14 22:59:02,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2022-04-14 22:59:02,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038086261] [2022-04-14 22:59:02,747 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-04-14 22:59:02,748 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2022-04-14 22:59:02,748 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:59:02,749 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:02,778 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:02,778 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-14 22:59:02,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:59:02,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-14 22:59:02,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2022-04-14 22:59:02,779 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:03,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:03,106 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2022-04-14 22:59:03,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-14 22:59:03,107 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 30 [2022-04-14 22:59:03,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:59:03,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:03,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 35 transitions. [2022-04-14 22:59:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:03,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 35 transitions. [2022-04-14 22:59:03,111 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 35 transitions. [2022-04-14 22:59:03,141 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:03,143 INFO L225 Difference]: With dead ends: 37 [2022-04-14 22:59:03,143 INFO L226 Difference]: Without dead ends: 34 [2022-04-14 22:59:03,143 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=67, Invalid=239, Unknown=0, NotChecked=0, Total=306 [2022-04-14 22:59:03,144 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 8 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-14 22:59:03,144 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 122 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-14 22:59:03,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-14 22:59:03,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-04-14 22:59:03,147 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:59:03,148 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:59:03,148 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:59:03,148 INFO L87 Difference]: Start difference. First operand 34 states. Second operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:59:03,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:03,150 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-04-14 22:59:03,150 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-04-14 22:59:03,151 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:03,151 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:03,151 INFO L74 IsIncluded]: Start isIncluded. First operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 34 states. [2022-04-14 22:59:03,151 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand 34 states. [2022-04-14 22:59:03,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:03,153 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-04-14 22:59:03,153 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-04-14 22:59:03,153 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:03,153 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:03,153 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:59:03,153 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:59:03,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 7 states have call successors, (7), 6 states have call predecessors, (7), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-04-14 22:59:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-04-14 22:59:03,155 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 30 [2022-04-14 22:59:03,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:59:03,155 INFO L478 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-04-14 22:59:03,155 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-04-14 22:59:03,156 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-04-14 22:59:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-04-14 22:59:03,156 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 22:59:03,156 INFO L499 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-14 22:59:03,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-14 22:59:03,370 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:03,371 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 22:59:03,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 22:59:03,371 INFO L85 PathProgramCache]: Analyzing trace with hash 725792896, now seen corresponding path program 2 times [2022-04-14 22:59:03,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 22:59:03,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012186301] [2022-04-14 22:59:03,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 22:59:03,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 22:59:03,395 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 22:59:03,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430195083] [2022-04-14 22:59:03,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-14 22:59:03,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:03,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 22:59:03,397 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) [2022-04-14 22:59:03,401 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-14 22:59:03,443 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-14 22:59:03,444 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-14 22:59:03,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-14 22:59:03,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 22:59:03,457 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 22:59:03,687 INFO L272 TraceCheckUtils]: 0: Hoare triple {886#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {886#true} is VALID [2022-04-14 22:59:03,687 INFO L290 TraceCheckUtils]: 1: Hoare triple {886#true} [65] ULTIMATE.initENTRY-->ULTIMATE.initFINAL: Formula: (let ((.cse0 (select |v_#memory_int_1| 1))) (and (= 48 (select .cse0 0)) (= (select |v_#valid_1| 2) 1) (= (select |v_#valid_1| 0) 0) (< 0 |v_#StackHeapBarrier_1|) (= |v_#NULL.base_1| 0) (= 1 (select |v_#valid_1| 3)) (= (select |v_#length_1| 2) 9) (= (select |v_#length_1| 3) 12) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {886#true} is VALID [2022-04-14 22:59:03,688 INFO L290 TraceCheckUtils]: 2: Hoare triple {886#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {886#true} is VALID [2022-04-14 22:59:03,688 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {886#true} {886#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {886#true} is VALID [2022-04-14 22:59:03,688 INFO L272 TraceCheckUtils]: 4: Hoare triple {886#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {886#true} is VALID [2022-04-14 22:59:03,688 INFO L290 TraceCheckUtils]: 5: Hoare triple {886#true} [67] mainENTRY-->L21: Formula: (and (<= |v_main_#t~nondet4_2| 32767) (<= 0 (+ |v_main_#t~nondet4_2| 32768)) (= v_main_~k~0_1 |v_main_#t~nondet4_2|)) InVars {main_#t~nondet4=|v_main_#t~nondet4_2|} OutVars{main_~c~0=v_main_~c~0_1, main_~y~0=v_main_~y~0_2, main_~x~0=v_main_~x~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~k~0, main_~c~0, main_~y~0] {886#true} is VALID [2022-04-14 22:59:03,688 INFO L272 TraceCheckUtils]: 6: Hoare triple {886#true} [69] L21-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {886#true} is VALID [2022-04-14 22:59:03,689 INFO L290 TraceCheckUtils]: 7: Hoare triple {886#true} [71] assume_abort_if_notENTRY-->L7: Formula: (= |v_assume_abort_if_not_#in~cond_1| v_assume_abort_if_not_~cond_1) InVars {assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~cond_1|, assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_1} AuxVars[] AssignedVars[assume_abort_if_not_~cond] {912#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-14 22:59:03,689 INFO L290 TraceCheckUtils]: 8: Hoare triple {912#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [76] L7-->L7-2: Formula: (not (= v_assume_abort_if_not_~cond_3 0)) InVars {assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} OutVars{assume_abort_if_not_~cond=v_assume_abort_if_not_~cond_3} AuxVars[] AssignedVars[] {916#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:59:03,690 INFO L290 TraceCheckUtils]: 9: Hoare triple {916#(not (= |assume_abort_if_not_#in~cond| 0))} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {916#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 22:59:03,690 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {916#(not (= |assume_abort_if_not_#in~cond| 0))} {886#true} [92] assume_abort_if_notEXIT-->L21-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_1| (ite (and (<= 0 v_main_~k~0_8) (<= v_main_~k~0_8 1)) 1 0)) InVars {main_~k~0=v_main_~k~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {923#(and (<= 0 main_~k~0) (<= main_~k~0 1))} is VALID [2022-04-14 22:59:03,691 INFO L290 TraceCheckUtils]: 11: Hoare triple {923#(and (<= 0 main_~k~0) (<= main_~k~0 1))} [70] L21-1-->L27-2: Formula: (and (= v_main_~c~0_2 0) (= v_main_~y~0_3 0) (= v_main_~x~0_3 0)) InVars {} OutVars{main_~c~0=v_main_~c~0_2, main_~y~0=v_main_~y~0_3, main_~x~0=v_main_~x~0_3} AuxVars[] AssignedVars[main_~x~0, main_~c~0, main_~y~0] {927#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} is VALID [2022-04-14 22:59:03,691 INFO L290 TraceCheckUtils]: 12: Hoare triple {927#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {927#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} is VALID [2022-04-14 22:59:03,692 INFO L272 TraceCheckUtils]: 13: Hoare triple {927#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {886#true} is VALID [2022-04-14 22:59:03,692 INFO L290 TraceCheckUtils]: 14: Hoare triple {886#true} [81] __VERIFIER_assertENTRY-->L10: 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] {886#true} is VALID [2022-04-14 22:59:03,692 INFO L290 TraceCheckUtils]: 15: Hoare triple {886#true} [86] L10-->L10-2: 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[] {886#true} is VALID [2022-04-14 22:59:03,692 INFO L290 TraceCheckUtils]: 16: Hoare triple {886#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {886#true} is VALID [2022-04-14 22:59:03,693 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {886#true} {927#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {927#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} is VALID [2022-04-14 22:59:03,694 INFO L290 TraceCheckUtils]: 18: Hoare triple {927#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {949#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} is VALID [2022-04-14 22:59:03,694 INFO L290 TraceCheckUtils]: 19: Hoare triple {949#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {949#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} is VALID [2022-04-14 22:59:03,694 INFO L272 TraceCheckUtils]: 20: Hoare triple {949#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {886#true} is VALID [2022-04-14 22:59:03,695 INFO L290 TraceCheckUtils]: 21: Hoare triple {886#true} [81] __VERIFIER_assertENTRY-->L10: 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] {886#true} is VALID [2022-04-14 22:59:03,695 INFO L290 TraceCheckUtils]: 22: Hoare triple {886#true} [86] L10-->L10-2: 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[] {886#true} is VALID [2022-04-14 22:59:03,695 INFO L290 TraceCheckUtils]: 23: Hoare triple {886#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {886#true} is VALID [2022-04-14 22:59:03,696 INFO L284 TraceCheckUtils]: 24: Hoare quadruple {886#true} {949#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {949#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} is VALID [2022-04-14 22:59:03,696 INFO L290 TraceCheckUtils]: 25: Hoare triple {949#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} [83] L28-1-->L27-2: Formula: (and (= v_main_~c~0_4 (+ v_main_~c~0_5 1)) (< v_main_~c~0_5 v_main_~k~0_6) (= v_main_~y~0_5 (+ v_main_~y~0_6 1)) (= v_main_~x~0_5 (+ v_main_~x~0_6 (* v_main_~y~0_5 (* v_main_~y~0_5 v_main_~y~0_5))))) InVars {main_~y~0=v_main_~y~0_6, main_~c~0=v_main_~c~0_5, main_~x~0=v_main_~x~0_6, main_~k~0=v_main_~k~0_6} OutVars{main_~y~0=v_main_~y~0_5, main_~c~0=v_main_~c~0_4, main_~x~0=v_main_~x~0_5, main_~k~0=v_main_~k~0_6} AuxVars[] AssignedVars[main_~x~0, main_~y~0, main_~c~0] {887#false} is VALID [2022-04-14 22:59:03,696 INFO L290 TraceCheckUtils]: 26: Hoare triple {887#false} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {887#false} is VALID [2022-04-14 22:59:03,697 INFO L272 TraceCheckUtils]: 27: Hoare triple {887#false} [78] L28-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {887#false} is VALID [2022-04-14 22:59:03,697 INFO L290 TraceCheckUtils]: 28: Hoare triple {887#false} [81] __VERIFIER_assertENTRY-->L10: 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] {887#false} is VALID [2022-04-14 22:59:03,697 INFO L290 TraceCheckUtils]: 29: Hoare triple {887#false} [86] L10-->L10-2: 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[] {887#false} is VALID [2022-04-14 22:59:03,697 INFO L290 TraceCheckUtils]: 30: Hoare triple {887#false} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {887#false} is VALID [2022-04-14 22:59:03,697 INFO L284 TraceCheckUtils]: 31: Hoare quadruple {887#false} {887#false} [94] __VERIFIER_assertEXIT-->L28-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (let ((.cse0 (* v_main_~y~0_8 v_main_~y~0_8))) (+ (* v_main_~x~0_7 4) (* (- 1) (* v_main_~y~0_8 (* (* v_main_~y~0_8 2) v_main_~y~0_8))) (* (- 1) (* (* v_main_~y~0_8 .cse0) v_main_~y~0_8)) (* (- 1) .cse0))) 0) 1 0)) InVars {main_~x~0=v_main_~x~0_7, main_~y~0=v_main_~y~0_8} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~y~0] {887#false} is VALID [2022-04-14 22:59:03,697 INFO L290 TraceCheckUtils]: 32: Hoare triple {887#false} [82] L28-1-->L27-3: Formula: (not (< v_main_~c~0_3 v_main_~k~0_5)) InVars {main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} OutVars{main_~c~0=v_main_~c~0_3, main_~k~0=v_main_~k~0_5} AuxVars[] AssignedVars[] {887#false} is VALID [2022-04-14 22:59:03,697 INFO L272 TraceCheckUtils]: 33: Hoare triple {887#false} [77] L27-3-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_2| (ite (= (+ (* v_main_~k~0_9 v_main_~y~0_9) (* (- 1) (* v_main_~y~0_9 v_main_~y~0_9))) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_9, main_~k~0=v_main_~k~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_2|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~k~0, main_~y~0] {887#false} is VALID [2022-04-14 22:59:03,697 INFO L290 TraceCheckUtils]: 34: Hoare triple {887#false} [81] __VERIFIER_assertENTRY-->L10: 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] {887#false} is VALID [2022-04-14 22:59:03,698 INFO L290 TraceCheckUtils]: 35: Hoare triple {887#false} [85] L10-->L11: 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[] {887#false} is VALID [2022-04-14 22:59:03,698 INFO L290 TraceCheckUtils]: 36: Hoare triple {887#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {887#false} is VALID [2022-04-14 22:59:03,698 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-04-14 22:59:03,698 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-14 22:59:03,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 22:59:03,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012186301] [2022-04-14 22:59:03,698 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 22:59:03,698 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [430195083] [2022-04-14 22:59:03,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [430195083] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 22:59:03,699 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 22:59:03,699 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-14 22:59:03,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851695796] [2022-04-14 22:59:03,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 22:59:03,700 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2022-04-14 22:59:03,700 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 22:59:03,700 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:03,725 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:03,725 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-14 22:59:03,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 22:59:03,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-14 22:59:03,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-04-14 22:59:03,726 INFO L87 Difference]: Start difference. First operand 34 states and 35 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:03,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:03,808 INFO L93 Difference]: Finished difference Result 26 states and 25 transitions. [2022-04-14 22:59:03,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-14 22:59:03,808 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) Word has length 37 [2022-04-14 22:59:03,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 22:59:03,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:03,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 23 transitions. [2022-04-14 22:59:03,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:03,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 23 transitions. [2022-04-14 22:59:03,811 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 23 transitions. [2022-04-14 22:59:03,833 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 22:59:03,833 INFO L225 Difference]: With dead ends: 26 [2022-04-14 22:59:03,833 INFO L226 Difference]: Without dead ends: 0 [2022-04-14 22:59:03,833 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-04-14 22:59:03,834 INFO L913 BasicCegarLoop]: 19 mSDtfsCounter, 4 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-04-14 22:59:03,834 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 64 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 22:59:03,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-14 22:59:03,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-14 22:59:03,835 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 22:59:03,835 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) [2022-04-14 22:59:03,835 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) [2022-04-14 22:59:03,835 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) [2022-04-14 22:59:03,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:03,835 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-14 22:59:03,835 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 22:59:03,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:03,836 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:03,836 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. [2022-04-14 22:59:03,836 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. [2022-04-14 22:59:03,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 22:59:03,836 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-14 22:59:03,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 22:59:03,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:03,836 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 22:59:03,836 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 22:59:03,836 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 22:59:03,836 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) [2022-04-14 22:59:03,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-14 22:59:03,837 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-04-14 22:59:03,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 22:59:03,837 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-14 22:59:03,837 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 6 states have internal predecessors, (21), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2022-04-14 22:59:03,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 22:59:03,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 22:59:03,839 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-14 22:59:03,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-04-14 22:59:04,047 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 22:59:04,050 INFO L719 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-04-14 22:59:04,051 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-14 22:59:04,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 10:59:04 BasicIcfg [2022-04-14 22:59:04,054 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-14 22:59:04,054 INFO L158 Benchmark]: Toolchain (without parser) took 38112.02ms. Allocated memory was 197.1MB in the beginning and 249.6MB in the end (delta: 52.4MB). Free memory was 151.1MB in the beginning and 144.4MB in the end (delta: 6.7MB). Peak memory consumption was 60.6MB. Max. memory is 8.0GB. [2022-04-14 22:59:04,055 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 197.1MB. Free memory was 167.3MB in the beginning and 167.2MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 22:59:04,055 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.30ms. Allocated memory is still 197.1MB. Free memory was 150.9MB in the beginning and 175.9MB in the end (delta: -25.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-14 22:59:04,055 INFO L158 Benchmark]: Boogie Preprocessor took 22.92ms. Allocated memory is still 197.1MB. Free memory was 175.9MB in the beginning and 174.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 22:59:04,055 INFO L158 Benchmark]: RCFGBuilder took 281.26ms. Allocated memory is still 197.1MB. Free memory was 174.3MB in the beginning and 163.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-04-14 22:59:04,056 INFO L158 Benchmark]: IcfgTransformer took 22.34ms. Allocated memory is still 197.1MB. Free memory was 163.6MB in the beginning and 162.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-14 22:59:04,056 INFO L158 Benchmark]: TraceAbstraction took 37535.19ms. Allocated memory was 197.1MB in the beginning and 249.6MB in the end (delta: 52.4MB). Free memory was 161.5MB in the beginning and 144.4MB in the end (delta: 17.1MB). Peak memory consumption was 71.1MB. Max. memory is 8.0GB. [2022-04-14 22:59:04,057 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 0.13ms. Allocated memory is still 197.1MB. Free memory was 167.3MB in the beginning and 167.2MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 245.30ms. Allocated memory is still 197.1MB. Free memory was 150.9MB in the beginning and 175.9MB in the end (delta: -25.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 22.92ms. Allocated memory is still 197.1MB. Free memory was 175.9MB in the beginning and 174.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 281.26ms. Allocated memory is still 197.1MB. Free memory was 174.3MB in the beginning and 163.6MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * IcfgTransformer took 22.34ms. Allocated memory is still 197.1MB. Free memory was 163.6MB in the beginning and 162.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 37535.19ms. Allocated memory was 197.1MB in the beginning and 249.6MB in the end (delta: 52.4MB). Free memory was 161.5MB in the beginning and 144.4MB in the end (delta: 17.1MB). Peak memory consumption was 71.1MB. 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: 12]: 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 5 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.5s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 47 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 39 mSDsluCounter, 362 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 254 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 108 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 13.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred in iteration=4, InterpolantAutomatonStates: 29, 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, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 33.7s InterpolantComputationTime, 125 NumberOfCodeBlocks, 125 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 464 SizeOfPredicates, 7 NumberOfNonLiveVariables, 360 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 40/46 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! [2022-04-14 22:59:04,081 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...