/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/geo2-ll_valuebound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-e106359-m [2022-04-14 21:43:10,171 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-14 21:43:10,173 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-14 21:43:10,215 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-14 21:43:10,215 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-14 21:43:10,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-14 21:43:10,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-14 21:43:10,220 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-14 21:43:10,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-14 21:43:10,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-14 21:43:10,226 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-14 21:43:10,227 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-14 21:43:10,227 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-14 21:43:10,229 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-14 21:43:10,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-14 21:43:10,232 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-14 21:43:10,232 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-14 21:43:10,233 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-14 21:43:10,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-14 21:43:10,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-14 21:43:10,240 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-14 21:43:10,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-14 21:43:10,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-14 21:43:10,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-14 21:43:10,243 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-14 21:43:10,248 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-14 21:43:10,254 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-14 21:43:10,255 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-14 21:43:10,256 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-14 21:43:10,257 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/LoopAccelerationJordanC.epf [2022-04-14 21:43:10,265 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-14 21:43:10,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-14 21:43:10,266 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-14 21:43:10,266 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-14 21:43:10,266 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-14 21:43:10,266 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-14 21:43:10,266 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-14 21:43:10,267 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-14 21:43:10,267 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-14 21:43:10,267 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-14 21:43:10,267 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-14 21:43:10,268 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-14 21:43:10,268 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-14 21:43:10,268 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-14 21:43:10,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-14 21:43:10,268 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-14 21:43:10,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-04-14 21:43:10,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-14 21:43:10,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 21:43:10,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-14 21:43:10,268 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-14 21:43:10,269 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-14 21:43:10,269 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-14 21:43:10,477 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-14 21:43:10,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-14 21:43:10,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-14 21:43:10,505 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-14 21:43:10,505 INFO L275 PluginConnector]: CDTParser initialized [2022-04-14 21:43:10,506 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/geo2-ll_valuebound20.c [2022-04-14 21:43:10,552 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6094fd16/ae45d907ee0f4dacbfa0d2a01a93cfbf/FLAG52c61e866 [2022-04-14 21:43:10,926 INFO L306 CDTParser]: Found 1 translation units. [2022-04-14 21:43:10,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/geo2-ll_valuebound20.c [2022-04-14 21:43:10,934 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6094fd16/ae45d907ee0f4dacbfa0d2a01a93cfbf/FLAG52c61e866 [2022-04-14 21:43:10,948 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6094fd16/ae45d907ee0f4dacbfa0d2a01a93cfbf [2022-04-14 21:43:10,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-14 21:43:10,951 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-14 21:43:10,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-14 21:43:10,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-14 21:43:10,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-14 21:43:10,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 09:43:10" (1/1) ... [2022-04-14 21:43:10,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40f25dda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:10, skipping insertion in model container [2022-04-14 21:43:10,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 09:43:10" (1/1) ... [2022-04-14 21:43:10,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-14 21:43:10,973 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-14 21:43:11,113 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/geo2-ll_valuebound20.c[525,538] [2022-04-14 21:43:11,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 21:43:11,144 INFO L203 MainTranslator]: Completed pre-run [2022-04-14 21:43:11,154 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/geo2-ll_valuebound20.c[525,538] [2022-04-14 21:43:11,165 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-14 21:43:11,177 INFO L208 MainTranslator]: Completed translation [2022-04-14 21:43:11,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11 WrapperNode [2022-04-14 21:43:11,178 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-14 21:43:11,178 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-14 21:43:11,179 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-14 21:43:11,179 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-14 21:43:11,187 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11" (1/1) ... [2022-04-14 21:43:11,187 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11" (1/1) ... [2022-04-14 21:43:11,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11" (1/1) ... [2022-04-14 21:43:11,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11" (1/1) ... [2022-04-14 21:43:11,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11" (1/1) ... [2022-04-14 21:43:11,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11" (1/1) ... [2022-04-14 21:43:11,209 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11" (1/1) ... [2022-04-14 21:43:11,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-14 21:43:11,215 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-14 21:43:11,215 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-14 21:43:11,215 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-14 21:43:11,215 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11" (1/1) ... [2022-04-14 21:43:11,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-14 21:43:11,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 21:43:11,244 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 21:43:11,246 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 21:43:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-14 21:43:11,275 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-14 21:43:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-14 21:43:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-14 21:43:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-14 21:43:11,276 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-14 21:43:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-14 21:43:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-14 21:43:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-14 21:43:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-14 21:43:11,276 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2022-04-14 21:43:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-14 21:43:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-14 21:43:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-14 21:43:11,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-14 21:43:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-14 21:43:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-14 21:43:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-14 21:43:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-14 21:43:11,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-14 21:43:11,329 INFO L234 CfgBuilder]: Building ICFG [2022-04-14 21:43:11,331 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-14 21:43:11,500 INFO L275 CfgBuilder]: Performing block encoding [2022-04-14 21:43:11,505 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-14 21:43:11,505 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-14 21:43:11,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 09:43:11 BoogieIcfgContainer [2022-04-14 21:43:11,506 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-14 21:43:11,507 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-14 21:43:11,507 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-14 21:43:11,508 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-14 21:43:11,510 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 09:43:11" (1/1) ... [2022-04-14 21:43:11,511 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_JORDAN [2022-04-14 21:43:11,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 09:43:11 BasicIcfg [2022-04-14 21:43:11,528 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-14 21:43:11,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-14 21:43:11,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-14 21:43:11,531 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-14 21:43:11,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 09:43:10" (1/4) ... [2022-04-14 21:43:11,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a20ebdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 09:43:11, skipping insertion in model container [2022-04-14 21:43:11,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 09:43:11" (2/4) ... [2022-04-14 21:43:11,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a20ebdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 09:43:11, skipping insertion in model container [2022-04-14 21:43:11,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.04 09:43:11" (3/4) ... [2022-04-14 21:43:11,532 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a20ebdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 09:43:11, skipping insertion in model container [2022-04-14 21:43:11,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 14.04 09:43:11" (4/4) ... [2022-04-14 21:43:11,533 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound20.cJordan [2022-04-14 21:43:11,537 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2022-04-14 21:43:11,538 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-14 21:43:11,573 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-14 21:43:11,580 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 21:43:11,580 INFO L341 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-14 21:43:11,594 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 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 21:43:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-14 21:43:11,600 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 21:43:11,600 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] [2022-04-14 21:43:11,601 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 21:43:11,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 21:43:11,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1141493127, now seen corresponding path program 1 times [2022-04-14 21:43:11,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 21:43:11,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842634488] [2022-04-14 21:43:11,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 21:43:11,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 21:43:11,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 21:43:11,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-14 21:43:11,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 21:43:11,795 INFO L290 TraceCheckUtils]: 0: Hoare triple {45#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] 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| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {32#true} is VALID [2022-04-14 21:43:11,795 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-14 21:43:11,796 INFO L284 TraceCheckUtils]: 2: Hoare quadruple {32#true} {32#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-14 21:43:11,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-14 21:43:11,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 21:43:11,808 INFO L290 TraceCheckUtils]: 0: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L12: 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] {32#true} is VALID [2022-04-14 21:43:11,808 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [74] L12-->L12-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,809 INFO L290 TraceCheckUtils]: 2: Hoare triple {33#false} [77] L12-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,809 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {33#false} {32#true} [94] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (and (<= v_main_~z~0_8 20) (<= 0 v_main_~z~0_8)) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-14 21:43:11,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-04-14 21:43:11,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 21:43:11,828 INFO L290 TraceCheckUtils]: 0: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L12: 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] {32#true} is VALID [2022-04-14 21:43:11,829 INFO L290 TraceCheckUtils]: 1: Hoare triple {32#true} [74] L12-->L12-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,829 INFO L290 TraceCheckUtils]: 2: Hoare triple {33#false} [77] L12-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,829 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {33#false} {33#false} [95] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (and (<= 0 v_main_~k~0_6) (<= v_main_~k~0_6 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_6} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-14 21:43:11,832 INFO L272 TraceCheckUtils]: 0: Hoare triple {32#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {45#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} is VALID [2022-04-14 21:43:11,833 INFO L290 TraceCheckUtils]: 1: Hoare triple {45#(and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|))} [66] 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| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {32#true} is VALID [2022-04-14 21:43:11,833 INFO L290 TraceCheckUtils]: 2: Hoare triple {32#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-14 21:43:11,833 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {32#true} {32#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-14 21:43:11,834 INFO L272 TraceCheckUtils]: 4: Hoare triple {32#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#true} is VALID [2022-04-14 21:43:11,834 INFO L290 TraceCheckUtils]: 5: Hoare triple {32#true} [68] mainENTRY-->L27: Formula: (and (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~z~0_2 |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_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0] {32#true} is VALID [2022-04-14 21:43:11,835 INFO L272 TraceCheckUtils]: 6: Hoare triple {32#true} [70] L27-->assume_abort_if_notENTRY: Formula: (= (ite (and (<= v_main_~z~0_8 20) (<= 0 v_main_~z~0_8)) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {32#true} is VALID [2022-04-14 21:43:11,835 INFO L290 TraceCheckUtils]: 7: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L12: 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] {32#true} is VALID [2022-04-14 21:43:11,837 INFO L290 TraceCheckUtils]: 8: Hoare triple {32#true} [74] L12-->L12-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,837 INFO L290 TraceCheckUtils]: 9: Hoare triple {33#false} [77] L12-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,837 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {33#false} {32#true} [94] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (and (<= v_main_~z~0_8 20) (<= 0 v_main_~z~0_8)) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-14 21:43:11,839 INFO L290 TraceCheckUtils]: 11: Hoare triple {33#false} [71] L27-1-->L29: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~k~0_2 |v_main_#t~nondet5_2|) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648))) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|} OutVars{main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~k~0] {33#false} is VALID [2022-04-14 21:43:11,839 INFO L272 TraceCheckUtils]: 12: Hoare triple {33#false} [73] L29-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (and (<= 0 v_main_~k~0_6) (<= v_main_~k~0_6 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_6} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {32#true} is VALID [2022-04-14 21:43:11,839 INFO L290 TraceCheckUtils]: 13: Hoare triple {32#true} [72] assume_abort_if_notENTRY-->L12: 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] {32#true} is VALID [2022-04-14 21:43:11,843 INFO L290 TraceCheckUtils]: 14: Hoare triple {32#true} [74] L12-->L12-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,843 INFO L290 TraceCheckUtils]: 15: Hoare triple {33#false} [77] L12-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,843 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {33#false} {33#false} [95] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (and (<= 0 v_main_~k~0_6) (<= v_main_~k~0_6 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_6} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {33#false} is VALID [2022-04-14 21:43:11,843 INFO L290 TraceCheckUtils]: 17: Hoare triple {33#false} [76] L29-1-->L35-2: Formula: (and (= v_main_~x~0_3 1) (= v_main_~c~0_2 1) (= v_main_~y~0_3 1)) 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] {33#false} is VALID [2022-04-14 21:43:11,844 INFO L290 TraceCheckUtils]: 18: Hoare triple {33#false} [80] L35-2-->L36: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,844 INFO L272 TraceCheckUtils]: 19: Hoare triple {33#false} [82] L36-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~x~0_7) (* (- 1) (* v_main_~y~0_7 v_main_~z~0_9)) (* v_main_~x~0_7 v_main_~z~0_9) 1) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_7, main_~z~0=v_main_~z~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {33#false} is VALID [2022-04-14 21:43:11,844 INFO L290 TraceCheckUtils]: 20: Hoare triple {33#false} [84] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {33#false} is VALID [2022-04-14 21:43:11,844 INFO L290 TraceCheckUtils]: 21: Hoare triple {33#false} [88] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,845 INFO L290 TraceCheckUtils]: 22: Hoare triple {33#false} [90] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {33#false} is VALID [2022-04-14 21:43:11,845 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-14 21:43:11,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 21:43:11,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842634488] [2022-04-14 21:43:11,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842634488] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-14 21:43:11,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-14 21:43:11,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-14 21:43:11,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456971529] [2022-04-14 21:43:11,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 21:43:11,853 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-14 21:43:11,855 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 21:43:11,858 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 21:43:11,881 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 21:43:11,882 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-14 21:43:11,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 21:43:11,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-14 21:43:11,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-14 21:43:11,904 INFO L87 Difference]: Start difference. First operand has 29 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 18 states have internal predecessors, (23), 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 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 21:43:12,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 21:43:12,004 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2022-04-14 21:43:12,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-14 21:43:12,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2022-04-14 21:43:12,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 21:43:12,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 21:43:12,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-04-14 21:43:12,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 21:43:12,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 35 transitions. [2022-04-14 21:43:12,014 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 35 transitions. [2022-04-14 21:43:12,048 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 21:43:12,053 INFO L225 Difference]: With dead ends: 29 [2022-04-14 21:43:12,054 INFO L226 Difference]: Without dead ends: 24 [2022-04-14 21:43:12,055 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 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 21:43:12,057 INFO L913 BasicCegarLoop]: 27 mSDtfsCounter, 16 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 30 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 21:43:12,058 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 30 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-14 21:43:12,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-04-14 21:43:12,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-04-14 21:43:12,076 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 21:43:12,076 INFO L82 GeneralOperation]: Start isEquivalent. First operand 24 states. Second operand has 24 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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 21:43:12,077 INFO L74 IsIncluded]: Start isIncluded. First operand 24 states. Second operand has 24 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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 21:43:12,077 INFO L87 Difference]: Start difference. First operand 24 states. Second operand has 24 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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 21:43:12,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 21:43:12,081 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-04-14 21:43:12,081 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-04-14 21:43:12,082 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 21:43:12,082 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 21:43:12,082 INFO L74 IsIncluded]: Start isIncluded. First operand has 24 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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 24 states. [2022-04-14 21:43:12,083 INFO L87 Difference]: Start difference. First operand has 24 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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 24 states. [2022-04-14 21:43:12,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 21:43:12,087 INFO L93 Difference]: Finished difference Result 24 states and 26 transitions. [2022-04-14 21:43:12,087 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-04-14 21:43:12,087 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 21:43:12,087 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 21:43:12,087 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 21:43:12,088 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 21:43:12,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 15 states have internal predecessors, (16), 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 21:43:12,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 26 transitions. [2022-04-14 21:43:12,091 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 26 transitions. Word has length 23 [2022-04-14 21:43:12,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 21:43:12,092 INFO L478 AbstractCegarLoop]: Abstraction has 24 states and 26 transitions. [2022-04-14 21:43:12,106 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-04-14 21:43:12,106 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 26 transitions. [2022-04-14 21:43:12,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-04-14 21:43:12,107 INFO L491 BasicCegarLoop]: Found error trace [2022-04-14 21:43:12,107 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] [2022-04-14 21:43:12,107 WARN L460 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-14 21:43:12,107 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-14 21:43:12,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-14 21:43:12,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1441395781, now seen corresponding path program 1 times [2022-04-14 21:43:12,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-14 21:43:12,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615090136] [2022-04-14 21:43:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 21:43:12,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-14 21:43:12,125 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-14 21:43:12,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1673618686] [2022-04-14 21:43:12,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-14 21:43:12,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-14 21:43:12,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-14 21:43:12,152 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 21:43:12,155 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 21:43:12,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 21:43:12,196 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 12 conjunts are in the unsatisfiable core [2022-04-14 21:43:12,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-14 21:43:12,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-14 21:43:12,444 INFO L272 TraceCheckUtils]: 0: Hoare triple {149#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,444 INFO L290 TraceCheckUtils]: 1: Hoare triple {149#true} [66] 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| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {149#true} is VALID [2022-04-14 21:43:12,444 INFO L290 TraceCheckUtils]: 2: Hoare triple {149#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,444 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {149#true} {149#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,445 INFO L272 TraceCheckUtils]: 4: Hoare triple {149#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,445 INFO L290 TraceCheckUtils]: 5: Hoare triple {149#true} [68] mainENTRY-->L27: Formula: (and (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~z~0_2 |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_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0] {149#true} is VALID [2022-04-14 21:43:12,445 INFO L272 TraceCheckUtils]: 6: Hoare triple {149#true} [70] L27-->assume_abort_if_notENTRY: Formula: (= (ite (and (<= v_main_~z~0_8 20) (<= 0 v_main_~z~0_8)) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {149#true} is VALID [2022-04-14 21:43:12,446 INFO L290 TraceCheckUtils]: 7: Hoare triple {149#true} [72] assume_abort_if_notENTRY-->L12: 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] {175#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-14 21:43:12,446 INFO L290 TraceCheckUtils]: 8: Hoare triple {175#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} [75] L12-->L12-2: 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[] {179#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 21:43:12,446 INFO L290 TraceCheckUtils]: 9: Hoare triple {179#(not (= |assume_abort_if_not_#in~cond| 0))} [77] L12-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {179#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-14 21:43:12,447 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {179#(not (= |assume_abort_if_not_#in~cond| 0))} {149#true} [94] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (and (<= v_main_~z~0_8 20) (<= 0 v_main_~z~0_8)) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {186#(and (<= main_~z~0 20) (<= 0 main_~z~0))} is VALID [2022-04-14 21:43:12,448 INFO L290 TraceCheckUtils]: 11: Hoare triple {186#(and (<= main_~z~0 20) (<= 0 main_~z~0))} [71] L27-1-->L29: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~k~0_2 |v_main_#t~nondet5_2|) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648))) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|} OutVars{main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~k~0] {186#(and (<= main_~z~0 20) (<= 0 main_~z~0))} is VALID [2022-04-14 21:43:12,448 INFO L272 TraceCheckUtils]: 12: Hoare triple {186#(and (<= main_~z~0 20) (<= 0 main_~z~0))} [73] L29-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (and (<= 0 v_main_~k~0_6) (<= v_main_~k~0_6 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_6} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {149#true} is VALID [2022-04-14 21:43:12,448 INFO L290 TraceCheckUtils]: 13: Hoare triple {149#true} [72] assume_abort_if_notENTRY-->L12: 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] {149#true} is VALID [2022-04-14 21:43:12,448 INFO L290 TraceCheckUtils]: 14: Hoare triple {149#true} [75] L12-->L12-2: 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[] {149#true} is VALID [2022-04-14 21:43:12,448 INFO L290 TraceCheckUtils]: 15: Hoare triple {149#true} [77] L12-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,449 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {149#true} {186#(and (<= main_~z~0 20) (<= 0 main_~z~0))} [95] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (and (<= 0 v_main_~k~0_6) (<= v_main_~k~0_6 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_6} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {186#(and (<= main_~z~0 20) (<= 0 main_~z~0))} is VALID [2022-04-14 21:43:12,450 INFO L290 TraceCheckUtils]: 17: Hoare triple {186#(and (<= main_~z~0 20) (<= 0 main_~z~0))} [76] L29-1-->L35-2: Formula: (and (= v_main_~x~0_3 1) (= v_main_~c~0_2 1) (= v_main_~y~0_3 1)) 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] {208#(and (= main_~y~0 1) (<= main_~z~0 20) (= main_~x~0 1) (<= 0 main_~z~0))} is VALID [2022-04-14 21:43:12,450 INFO L290 TraceCheckUtils]: 18: Hoare triple {208#(and (= main_~y~0 1) (<= main_~z~0 20) (= main_~x~0 1) (<= 0 main_~z~0))} [80] L35-2-->L36: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {208#(and (= main_~y~0 1) (<= main_~z~0 20) (= main_~x~0 1) (<= 0 main_~z~0))} is VALID [2022-04-14 21:43:12,451 INFO L272 TraceCheckUtils]: 19: Hoare triple {208#(and (= main_~y~0 1) (<= main_~z~0 20) (= main_~x~0 1) (<= 0 main_~z~0))} [82] L36-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~x~0_7) (* (- 1) (* v_main_~y~0_7 v_main_~z~0_9)) (* v_main_~x~0_7 v_main_~z~0_9) 1) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_7, main_~z~0=v_main_~z~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {215#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 21:43:12,452 INFO L290 TraceCheckUtils]: 20: Hoare triple {215#(<= 1 |__VERIFIER_assert_#in~cond|)} [84] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {219#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 21:43:12,452 INFO L290 TraceCheckUtils]: 21: Hoare triple {219#(<= 1 __VERIFIER_assert_~cond)} [88] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {150#false} is VALID [2022-04-14 21:43:12,452 INFO L290 TraceCheckUtils]: 22: Hoare triple {150#false} [90] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {150#false} is VALID [2022-04-14 21:43:12,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-14 21:43:12,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-14 21:43:12,652 INFO L290 TraceCheckUtils]: 22: Hoare triple {150#false} [90] L16-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {150#false} is VALID [2022-04-14 21:43:12,652 INFO L290 TraceCheckUtils]: 21: Hoare triple {219#(<= 1 __VERIFIER_assert_~cond)} [88] L15-->L16: Formula: (= v___VERIFIER_assert_~cond_3 0) InVars {__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} OutVars{__VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_3} AuxVars[] AssignedVars[] {150#false} is VALID [2022-04-14 21:43:12,653 INFO L290 TraceCheckUtils]: 20: Hoare triple {215#(<= 1 |__VERIFIER_assert_#in~cond|)} [84] __VERIFIER_assertENTRY-->L15: Formula: (= v___VERIFIER_assert_~cond_2 |v___VERIFIER_assert_#in~cond_1|) InVars {__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~cond_1|, __VERIFIER_assert_~cond=v___VERIFIER_assert_~cond_2} AuxVars[] AssignedVars[__VERIFIER_assert_~cond] {219#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-14 21:43:12,655 INFO L272 TraceCheckUtils]: 19: Hoare triple {235#(= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~z~0 main_~x~0) 1))} [82] L36-->__VERIFIER_assertENTRY: Formula: (= |v___VERIFIER_assert_#in~condInParam_1| (ite (= (+ (* (- 1) v_main_~x~0_7) (* (- 1) (* v_main_~y~0_7 v_main_~z~0_9)) (* v_main_~x~0_7 v_main_~z~0_9) 1) 0) 1 0)) InVars {main_~y~0=v_main_~y~0_7, main_~x~0=v_main_~x~0_7, main_~z~0=v_main_~z~0_9} OutVars{__VERIFIER_assert_#in~cond=|v___VERIFIER_assert_#in~condInParam_1|} AuxVars[] AssignedVars[__VERIFIER_assert_#in~cond, main_~x~0, main_~z~0, main_~y~0] {215#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-14 21:43:12,655 INFO L290 TraceCheckUtils]: 18: Hoare triple {235#(= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~z~0 main_~x~0) 1))} [80] L35-2-->L36: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {235#(= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~z~0 main_~x~0) 1))} is VALID [2022-04-14 21:43:12,656 INFO L290 TraceCheckUtils]: 17: Hoare triple {149#true} [76] L29-1-->L35-2: Formula: (and (= v_main_~x~0_3 1) (= v_main_~c~0_2 1) (= v_main_~y~0_3 1)) 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] {235#(= (+ main_~x~0 (* main_~z~0 main_~y~0)) (+ (* main_~z~0 main_~x~0) 1))} is VALID [2022-04-14 21:43:12,656 INFO L284 TraceCheckUtils]: 16: Hoare quadruple {149#true} {149#true} [95] assume_abort_if_notEXIT-->L29-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (and (<= 0 v_main_~k~0_6) (<= v_main_~k~0_6 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_6} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {149#true} is VALID [2022-04-14 21:43:12,656 INFO L290 TraceCheckUtils]: 15: Hoare triple {149#true} [77] L12-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,657 INFO L290 TraceCheckUtils]: 14: Hoare triple {149#true} [75] L12-->L12-2: 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[] {149#true} is VALID [2022-04-14 21:43:12,657 INFO L290 TraceCheckUtils]: 13: Hoare triple {149#true} [72] assume_abort_if_notENTRY-->L12: 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] {149#true} is VALID [2022-04-14 21:43:12,657 INFO L272 TraceCheckUtils]: 12: Hoare triple {149#true} [73] L29-->assume_abort_if_notENTRY: Formula: (= |v_assume_abort_if_not_#in~condInParam_2| (ite (and (<= 0 v_main_~k~0_6) (<= v_main_~k~0_6 20)) 1 0)) InVars {main_~k~0=v_main_~k~0_6} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_2|} AuxVars[] AssignedVars[main_~k~0, assume_abort_if_not_#in~cond] {149#true} is VALID [2022-04-14 21:43:12,657 INFO L290 TraceCheckUtils]: 11: Hoare triple {149#true} [71] L27-1-->L29: Formula: (and (<= |v_main_#t~nondet5_2| 2147483647) (= v_main_~k~0_2 |v_main_#t~nondet5_2|) (<= 0 (+ |v_main_#t~nondet5_2| 2147483648))) InVars {main_#t~nondet5=|v_main_#t~nondet5_2|} OutVars{main_~k~0=v_main_~k~0_2} AuxVars[] AssignedVars[main_#t~nondet5, main_~k~0] {149#true} is VALID [2022-04-14 21:43:12,657 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {149#true} {149#true} [94] assume_abort_if_notEXIT-->L27-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: (= (ite (and (<= v_main_~z~0_8 20) (<= 0 v_main_~z~0_8)) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {149#true} is VALID [2022-04-14 21:43:12,657 INFO L290 TraceCheckUtils]: 9: Hoare triple {149#true} [77] L12-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,658 INFO L290 TraceCheckUtils]: 8: Hoare triple {149#true} [75] L12-->L12-2: 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[] {149#true} is VALID [2022-04-14 21:43:12,658 INFO L290 TraceCheckUtils]: 7: Hoare triple {149#true} [72] assume_abort_if_notENTRY-->L12: 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] {149#true} is VALID [2022-04-14 21:43:12,658 INFO L272 TraceCheckUtils]: 6: Hoare triple {149#true} [70] L27-->assume_abort_if_notENTRY: Formula: (= (ite (and (<= v_main_~z~0_8 20) (<= 0 v_main_~z~0_8)) 1 0) |v_assume_abort_if_not_#in~condInParam_1|) InVars {main_~z~0=v_main_~z~0_8} OutVars{assume_abort_if_not_#in~cond=|v_assume_abort_if_not_#in~condInParam_1|} AuxVars[] AssignedVars[main_~z~0, assume_abort_if_not_#in~cond] {149#true} is VALID [2022-04-14 21:43:12,659 INFO L290 TraceCheckUtils]: 5: Hoare triple {149#true} [68] mainENTRY-->L27: Formula: (and (<= 0 (+ |v_main_#t~nondet4_2| 2147483648)) (<= |v_main_#t~nondet4_2| 2147483647) (= v_main_~z~0_2 |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_~z~0=v_main_~z~0_2, main_~k~0=v_main_~k~0_1} AuxVars[] AssignedVars[main_#t~nondet4, main_~x~0, main_~z~0, main_~k~0, main_~c~0, main_~y~0] {149#true} is VALID [2022-04-14 21:43:12,659 INFO L272 TraceCheckUtils]: 4: Hoare triple {149#true} [65] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,659 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {149#true} {149#true} [93] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,659 INFO L290 TraceCheckUtils]: 2: Hoare triple {149#true} [69] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,660 INFO L290 TraceCheckUtils]: 1: Hoare triple {149#true} [66] 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| 3) 12) (= (select |v_#length_1| 2) 10) (= (select |v_#valid_1| 1) 1) (= 2 (select |v_#length_1| 1)) (= (select .cse0 1) 0) (= |v_#NULL.offset_1| 0))) InVars {#memory_int=|v_#memory_int_1|, #StackHeapBarrier=|v_#StackHeapBarrier_1|, #length=|v_#length_1|, #valid=|v_#valid_1|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_1|, #valid=|v_#valid_1|, #memory_int=|v_#memory_int_1|, #NULL.offset=|v_#NULL.offset_1|, #length=|v_#length_1|, #NULL.base=|v_#NULL.base_1|} AuxVars[] AssignedVars[#NULL.offset, #NULL.base] {149#true} is VALID [2022-04-14 21:43:12,660 INFO L272 TraceCheckUtils]: 0: Hoare triple {149#true} [64] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {149#true} is VALID [2022-04-14 21:43:12,660 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-04-14 21:43:12,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-14 21:43:12,661 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615090136] [2022-04-14 21:43:12,661 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-14 21:43:12,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1673618686] [2022-04-14 21:43:12,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1673618686] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-14 21:43:12,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-14 21:43:12,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 9 [2022-04-14 21:43:12,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751139132] [2022-04-14 21:43:12,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-14 21:43:12,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2022-04-14 21:43:12,668 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-14 21:43:12,668 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-14 21:43:12,689 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 21:43:12,689 INFO L554 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-14 21:43:12,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-14 21:43:12,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-14 21:43:12,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-04-14 21:43:12,692 INFO L87 Difference]: Start difference. First operand 24 states and 26 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-14 21:43:12,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 21:43:12,931 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2022-04-14 21:43:12,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-14 21:43:12,932 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2022-04-14 21:43:12,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-14 21:43:12,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-14 21:43:12,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2022-04-14 21:43:12,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-14 21:43:12,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 25 transitions. [2022-04-14 21:43:12,936 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 25 transitions. [2022-04-14 21:43:12,971 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-14 21:43:12,972 INFO L225 Difference]: With dead ends: 22 [2022-04-14 21:43:12,972 INFO L226 Difference]: Without dead ends: 0 [2022-04-14 21:43:12,972 INFO L912 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-04-14 21:43:12,973 INFO L913 BasicCegarLoop]: 20 mSDtfsCounter, 6 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-14 21:43:12,973 INFO L914 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 67 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-14 21:43:12,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-14 21:43:12,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-14 21:43:12,974 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-14 21:43:12,974 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 21:43:12,974 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 21:43:12,974 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 21:43:12,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 21:43:12,974 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-14 21:43:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 21:43:12,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 21:43:12,975 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 21:43:12,975 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 21:43:12,975 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 21:43:12,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-14 21:43:12,975 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-14 21:43:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 21:43:12,975 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 21:43:12,975 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-14 21:43:12,976 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-14 21:43:12,976 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-14 21:43:12,976 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 21:43:12,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-14 21:43:12,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2022-04-14 21:43:12,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-14 21:43:12,976 INFO L478 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-14 21:43:12,976 INFO L479 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-04-14 21:43:12,977 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-14 21:43:12,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-14 21:43:12,978 INFO L788 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-14 21:43:13,020 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 21:43:13,195 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 21:43:13,198 INFO L719 BasicCegarLoop]: Path program histogram: [1, 1] [2022-04-14 21:43:13,199 INFO L177 ceAbstractionStarter]: Computing trace abstraction results [2022-04-14 21:43:13,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 09:43:13 BasicIcfg [2022-04-14 21:43:13,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-14 21:43:13,202 INFO L158 Benchmark]: Toolchain (without parser) took 2251.41ms. Allocated memory was 183.5MB in the beginning and 240.1MB in the end (delta: 56.6MB). Free memory was 133.9MB in the beginning and 160.1MB in the end (delta: -26.2MB). Peak memory consumption was 31.1MB. Max. memory is 8.0GB. [2022-04-14 21:43:13,202 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 183.5MB. Free memory was 150.5MB in the beginning and 150.4MB in the end (delta: 74.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-04-14 21:43:13,203 INFO L158 Benchmark]: CACSL2BoogieTranslator took 224.94ms. Allocated memory is still 183.5MB. Free memory was 133.8MB in the beginning and 158.6MB in the end (delta: -24.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-14 21:43:13,203 INFO L158 Benchmark]: Boogie Preprocessor took 35.17ms. Allocated memory is still 183.5MB. Free memory was 158.6MB in the beginning and 157.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-14 21:43:13,203 INFO L158 Benchmark]: RCFGBuilder took 291.99ms. Allocated memory is still 183.5MB. Free memory was 157.1MB in the beginning and 145.8MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-14 21:43:13,203 INFO L158 Benchmark]: IcfgTransformer took 20.78ms. Allocated memory is still 183.5MB. Free memory was 145.8MB in the beginning and 144.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-14 21:43:13,204 INFO L158 Benchmark]: TraceAbstraction took 1672.38ms. Allocated memory was 183.5MB in the beginning and 240.1MB in the end (delta: 56.6MB). Free memory was 143.7MB in the beginning and 160.1MB in the end (delta: -16.4MB). Peak memory consumption was 41.2MB. Max. memory is 8.0GB. [2022-04-14 21:43:13,205 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 0.11ms. Allocated memory is still 183.5MB. Free memory was 150.5MB in the beginning and 150.4MB in the end (delta: 74.6kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 224.94ms. Allocated memory is still 183.5MB. Free memory was 133.8MB in the beginning and 158.6MB in the end (delta: -24.8MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 35.17ms. Allocated memory is still 183.5MB. Free memory was 158.6MB in the beginning and 157.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 291.99ms. Allocated memory is still 183.5MB. Free memory was 157.1MB in the beginning and 145.8MB in the end (delta: 11.3MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 20.78ms. Allocated memory is still 183.5MB. Free memory was 145.8MB in the beginning and 144.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * TraceAbstraction took 1672.38ms. Allocated memory was 183.5MB in the beginning and 240.1MB in the end (delta: 56.6MB). Free memory was 143.7MB in the beginning and 160.1MB in the end (delta: -16.4MB). Peak memory consumption was 41.2MB. 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: 17]: 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, 29 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 47 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 150 SizeOfPredicates, 2 NumberOfNonLiveVariables, 81 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 9/12 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 21:43:13,241 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...