/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCTransformed.xml -s ../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf -i ../../../trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-fb4f59a-m [2022-04-28 01:29:53,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-28 01:29:53,404 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-28 01:29:53,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-28 01:29:53,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-28 01:29:53,422 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-28 01:29:53,423 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-28 01:29:53,424 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-28 01:29:53,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-28 01:29:53,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-28 01:29:53,426 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-28 01:29:53,427 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-28 01:29:53,427 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-28 01:29:53,428 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-28 01:29:53,429 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-28 01:29:53,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-28 01:29:53,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-28 01:29:53,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-28 01:29:53,432 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-28 01:29:53,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-28 01:29:53,434 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-28 01:29:53,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-28 01:29:53,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-28 01:29:53,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-28 01:29:53,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-28 01:29:53,438 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-04-28 01:29:53,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-28 01:29:53,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-28 01:29:53,444 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-28 01:29:53,445 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/loopacceleration/qvasr/qvasr_64.epf [2022-04-28 01:29:53,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-28 01:29:53,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-28 01:29:53,460 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-28 01:29:53,460 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-28 01:29:53,460 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-04-28 01:29:53,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-04-28 01:29:53,460 INFO L138 SettingsManager]: * Use SBE=true [2022-04-28 01:29:53,461 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-28 01:29:53,461 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-28 01:29:53,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-28 01:29:53,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-28 01:29:53,461 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-28 01:29:53,461 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-28 01:29:53,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-28 01:29:53,461 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-28 01:29:53,462 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-28 01:29:53,462 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-28 01:29:53,462 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-28 01:29:53,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-28 01:29:53,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 01:29:53,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-28 01:29:53,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-28 01:29:53,463 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-28 01:29:53,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-04-28 01:29:53,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-28 01:29:53,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-28 01:29:53,463 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-28 01:29:53,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-28 01:29:53,464 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-04-28 01:29:53,464 INFO L138 SettingsManager]: * TransformationType=LOOP_ACCELERATION_QVASR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-04-28 01:29:53,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-28 01:29:53,620 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-28 01:29:53,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-28 01:29:53,622 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-28 01:29:53,623 INFO L275 PluginConnector]: CDTParser initialized [2022-04-28 01:29:53,624 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound1.c [2022-04-28 01:29:53,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f405fe896/5e6cff314c9d40c496e597eb3c08dc57/FLAG65976ad2f [2022-04-28 01:29:54,040 INFO L306 CDTParser]: Found 1 translation units. [2022-04-28 01:29:54,040 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/nla-digbench-scaling/ps4-ll_valuebound1.c [2022-04-28 01:29:54,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f405fe896/5e6cff314c9d40c496e597eb3c08dc57/FLAG65976ad2f [2022-04-28 01:29:54,057 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f405fe896/5e6cff314c9d40c496e597eb3c08dc57 [2022-04-28 01:29:54,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-28 01:29:54,061 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-04-28 01:29:54,062 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-28 01:29:54,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-28 01:29:54,065 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-28 01:29:54,066 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,067 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37fbb1cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54, skipping insertion in model container [2022-04-28 01:29:54,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-28 01:29:54,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-28 01:29:54,227 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] [2022-04-28 01:29:54,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 01:29:54,257 INFO L203 MainTranslator]: Completed pre-run [2022-04-28 01:29:54,267 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] [2022-04-28 01:29:54,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-28 01:29:54,288 INFO L208 MainTranslator]: Completed translation [2022-04-28 01:29:54,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54 WrapperNode [2022-04-28 01:29:54,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-28 01:29:54,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-28 01:29:54,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-28 01:29:54,291 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-28 01:29:54,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,315 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,316 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,319 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-28 01:29:54,320 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-28 01:29:54,320 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-28 01:29:54,320 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-28 01:29:54,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-28 01:29:54,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:29:54,364 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) [2022-04-28 01:29:54,387 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 [2022-04-28 01:29:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2022-04-28 01:29:54,410 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-28 01:29:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2022-04-28 01:29:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-04-28 01:29:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-04-28 01:29:54,411 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2022-04-28 01:29:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2022-04-28 01:29:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2022-04-28 01:29:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2022-04-28 01:29:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-28 01:29:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2022-04-28 01:29:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-04-28 01:29:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-04-28 01:29:54,411 INFO L130 BoogieDeclarations]: Found specification of procedure main [2022-04-28 01:29:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2022-04-28 01:29:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-28 01:29:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-28 01:29:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-28 01:29:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-28 01:29:54,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-28 01:29:54,458 INFO L234 CfgBuilder]: Building ICFG [2022-04-28 01:29:54,459 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-28 01:29:54,604 INFO L275 CfgBuilder]: Performing block encoding [2022-04-28 01:29:54,608 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-28 01:29:54,608 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-04-28 01:29:54,609 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 01:29:54 BoogieIcfgContainer [2022-04-28 01:29:54,610 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-28 01:29:54,610 INFO L113 PluginConnector]: ------------------------IcfgTransformer---------------------------- [2022-04-28 01:29:54,610 INFO L271 PluginConnector]: Initializing IcfgTransformer... [2022-04-28 01:29:54,611 INFO L275 PluginConnector]: IcfgTransformer initialized [2022-04-28 01:29:54,613 INFO L185 PluginConnector]: Executing the observer IcfgTransformationObserver from plugin IcfgTransformer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 01:29:54" (1/1) ... [2022-04-28 01:29:54,614 INFO L168 ansformationObserver]: Applying ICFG transformation LOOP_ACCELERATION_QVASR [2022-04-28 01:29:54,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.04 01:29:54 BasicIcfg [2022-04-28 01:29:54,627 INFO L132 PluginConnector]: ------------------------ END IcfgTransformer---------------------------- [2022-04-28 01:29:54,628 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-28 01:29:54,628 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-28 01:29:54,630 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-28 01:29:54,630 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 01:29:54" (1/4) ... [2022-04-28 01:29:54,630 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12577d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 01:29:54, skipping insertion in model container [2022-04-28 01:29:54,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 01:29:54" (2/4) ... [2022-04-28 01:29:54,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12577d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 01:29:54, skipping insertion in model container [2022-04-28 01:29:54,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 01:29:54" (3/4) ... [2022-04-28 01:29:54,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12577d21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 01:29:54, skipping insertion in model container [2022-04-28 01:29:54,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.icfgtransformation CFG 28.04 01:29:54" (4/4) ... [2022-04-28 01:29:54,632 INFO L111 eAbstractionObserver]: Analyzing ICFG ps4-ll_valuebound1.cqvasr [2022-04-28 01:29:54,656 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-28 01:29:54,657 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-04-28 01:29:54,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-28 01:29:54,699 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@3bc1c757, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5907fc74 [2022-04-28 01:29:54,700 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-04-28 01:29:54,705 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) [2022-04-28 01:29:54,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-28 01:29:54,709 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:29:54,709 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:29:54,710 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:29:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:29:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1885409022, now seen corresponding path program 1 times [2022-04-28 01:29:54,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:29:54,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442700422] [2022-04-28 01:29:54,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:29:54,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:29:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:29:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2022-04-28 01:29:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:29:54,886 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 [2022-04-28 01:29:54,887 INFO L290 TraceCheckUtils]: 1: Hoare triple {31#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-28 01:29:54,887 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 [2022-04-28 01:29:54,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-04-28 01:29:54,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:29:54,899 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 [2022-04-28 01:29:54,900 INFO L290 TraceCheckUtils]: 1: Hoare triple {31#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-28 01:29:54,900 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 [2022-04-28 01:29:54,900 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 [2022-04-28 01:29:54,907 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 [2022-04-28 01:29:54,908 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 [2022-04-28 01:29:54,908 INFO L290 TraceCheckUtils]: 2: Hoare triple {31#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-28 01:29:54,909 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 [2022-04-28 01:29:54,909 INFO L272 TraceCheckUtils]: 4: Hoare triple {31#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {31#true} is VALID [2022-04-28 01:29:54,909 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 [2022-04-28 01:29:54,909 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 [2022-04-28 01:29:54,909 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 [2022-04-28 01:29:54,911 INFO L290 TraceCheckUtils]: 8: Hoare triple {31#true} [75] L7-->L7-2: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-28 01:29:54,911 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 [2022-04-28 01:29:54,912 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 [2022-04-28 01:29:54,912 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 [2022-04-28 01:29:54,912 INFO L290 TraceCheckUtils]: 12: Hoare triple {32#false} [72] L27-2-->L27-3: Formula: false InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-28 01:29:54,912 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 [2022-04-28 01:29:54,912 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 [2022-04-28 01:29:54,913 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 [2022-04-28 01:29:54,913 INFO L290 TraceCheckUtils]: 16: Hoare triple {32#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {32#false} is VALID [2022-04-28 01:29:54,913 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:29:54,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:29:54,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442700422] [2022-04-28 01:29:54,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442700422] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:29:54,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:29:54,914 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-04-28 01:29:54,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177411779] [2022-04-28 01:29:54,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:29:54,920 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 [2022-04-28 01:29:54,921 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:29:54,923 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) [2022-04-28 01:29:54,950 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:29:54,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-04-28 01:29:54,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:29:54,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-04-28 01:29:54,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-04-28 01:29:54,966 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) [2022-04-28 01:29:55,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:29:55,061 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2022-04-28 01:29:55,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-04-28 01:29:55,062 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 [2022-04-28 01:29:55,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:29:55,063 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) [2022-04-28 01:29:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2022-04-28 01:29:55,072 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) [2022-04-28 01:29:55,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2022-04-28 01:29:55,076 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 3 states and 61 transitions. [2022-04-28 01:29:55,153 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:29:55,159 INFO L225 Difference]: With dead ends: 47 [2022-04-28 01:29:55,160 INFO L226 Difference]: Without dead ends: 23 [2022-04-28 01:29:55,162 INFO L412 NwaCegarLoop]: 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 [2022-04-28 01:29:55,166 INFO L413 NwaCegarLoop]: 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 [2022-04-28 01:29:55,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 29 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:29:55,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-04-28 01:29:55,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-04-28 01:29:55,187 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:29:55,188 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) [2022-04-28 01:29:55,188 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) [2022-04-28 01:29:55,189 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) [2022-04-28 01:29:55,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:29:55,197 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-04-28 01:29:55,197 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-04-28 01:29:55,197 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:29:55,197 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:29:55,197 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. [2022-04-28 01:29:55,198 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. [2022-04-28 01:29:55,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:29:55,199 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2022-04-28 01:29:55,200 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-04-28 01:29:55,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:29:55,200 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:29:55,200 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:29:55,200 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:29:55,200 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) [2022-04-28 01:29:55,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2022-04-28 01:29:55,202 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 17 [2022-04-28 01:29:55,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:29:55,203 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2022-04-28 01:29:55,203 INFO L496 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) [2022-04-28 01:29:55,203 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2022-04-28 01:29:55,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-04-28 01:29:55,203 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:29:55,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:29:55,204 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-04-28 01:29:55,204 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:29:55,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:29:55,204 INFO L85 PathProgramCache]: Analyzing trace with hash 603980644, now seen corresponding path program 1 times [2022-04-28 01:29:55,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:29:55,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350297265] [2022-04-28 01:29:55,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:29:55,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:29:55,227 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:29:55,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [251219284] [2022-04-28 01:29:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:29:55,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:29:55,228 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:29:55,229 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) [2022-04-28 01:29:55,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-04-28 01:29:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:29:55,286 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 7 conjunts are in the unsatisfiable core [2022-04-28 01:29:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:29:55,296 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:29:55,396 INFO L272 TraceCheckUtils]: 0: Hoare triple {186#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {186#true} is VALID [2022-04-28 01:29:55,397 INFO L290 TraceCheckUtils]: 1: Hoare triple {186#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] {186#true} is VALID [2022-04-28 01:29:55,397 INFO L290 TraceCheckUtils]: 2: Hoare triple {186#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {186#true} is VALID [2022-04-28 01:29:55,397 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {186#true} {186#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {186#true} is VALID [2022-04-28 01:29:55,397 INFO L272 TraceCheckUtils]: 4: Hoare triple {186#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {186#true} is VALID [2022-04-28 01:29:55,397 INFO L290 TraceCheckUtils]: 5: Hoare triple {186#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] {186#true} is VALID [2022-04-28 01:29:55,397 INFO L272 TraceCheckUtils]: 6: Hoare triple {186#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] {186#true} is VALID [2022-04-28 01:29:55,398 INFO L290 TraceCheckUtils]: 7: Hoare triple {186#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] {186#true} is VALID [2022-04-28 01:29:55,398 INFO L290 TraceCheckUtils]: 8: Hoare triple {186#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[] {186#true} is VALID [2022-04-28 01:29:55,398 INFO L290 TraceCheckUtils]: 9: Hoare triple {186#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {186#true} is VALID [2022-04-28 01:29:55,398 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {186#true} {186#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] {186#true} is VALID [2022-04-28 01:29:55,399 INFO L290 TraceCheckUtils]: 11: Hoare triple {186#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] {224#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:29:55,399 INFO L290 TraceCheckUtils]: 12: Hoare triple {224#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {224#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:29:55,400 INFO L272 TraceCheckUtils]: 13: Hoare triple {224#(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] {231#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:29:55,401 INFO L290 TraceCheckUtils]: 14: Hoare triple {231#(<= 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] {235#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:29:55,401 INFO L290 TraceCheckUtils]: 15: Hoare triple {235#(<= 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[] {187#false} is VALID [2022-04-28 01:29:55,402 INFO L290 TraceCheckUtils]: 16: Hoare triple {187#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {187#false} is VALID [2022-04-28 01:29:55,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:29:55,402 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 01:29:55,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:29:55,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350297265] [2022-04-28 01:29:55,403 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:29:55,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251219284] [2022-04-28 01:29:55,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251219284] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:29:55,403 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:29:55,403 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-04-28 01:29:55,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090903940] [2022-04-28 01:29:55,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:29:55,404 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 [2022-04-28 01:29:55,404 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:29:55,405 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) [2022-04-28 01:29:55,418 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:29:55,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 01:29:55,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:29:55,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 01:29:55,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-04-28 01:29:55,419 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) [2022-04-28 01:29:55,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:29:55,598 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-04-28 01:29:55,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-28 01:29:55,599 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 [2022-04-28 01:29:55,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:29:55,599 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) [2022-04-28 01:29:55,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2022-04-28 01:29:55,601 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) [2022-04-28 01:29:55,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 38 transitions. [2022-04-28 01:29:55,602 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 38 transitions. [2022-04-28 01:29:55,633 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:29:55,634 INFO L225 Difference]: With dead ends: 34 [2022-04-28 01:29:55,634 INFO L226 Difference]: Without dead ends: 30 [2022-04-28 01:29:55,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-04-28 01:29:55,636 INFO L413 NwaCegarLoop]: 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 [2022-04-28 01:29:55,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 77 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:29:55,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-04-28 01:29:55,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-04-28 01:29:55,640 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:29:55,640 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) [2022-04-28 01:29:55,641 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) [2022-04-28 01:29:55,641 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) [2022-04-28 01:29:55,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:29:55,642 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-04-28 01:29:55,642 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-04-28 01:29:55,643 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:29:55,643 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:29:55,643 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. [2022-04-28 01:29:55,643 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. [2022-04-28 01:29:55,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:29:55,645 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2022-04-28 01:29:55,645 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-04-28 01:29:55,646 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:29:55,646 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:29:55,646 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:29:55,646 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:29:55,646 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) [2022-04-28 01:29:55,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 32 transitions. [2022-04-28 01:29:55,647 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 32 transitions. Word has length 17 [2022-04-28 01:29:55,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:29:55,648 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 32 transitions. [2022-04-28 01:29:55,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-04-28 01:29:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 32 transitions. [2022-04-28 01:29:55,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-04-28 01:29:55,648 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:29:55,648 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-04-28 01:29:55,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-04-28 01:29:55,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:29:55,867 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:29:55,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:29:55,868 INFO L85 PathProgramCache]: Analyzing trace with hash -169450186, now seen corresponding path program 1 times [2022-04-28 01:29:55,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:29:55,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791064027] [2022-04-28 01:29:55,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:29:55,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:29:55,878 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:29:55,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [100492444] [2022-04-28 01:29:55,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:29:55,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:29:55,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:29:55,880 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) [2022-04-28 01:29:55,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-04-28 01:29:55,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:29:55,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 11 conjunts are in the unsatisfiable core [2022-04-28 01:29:55,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:29:55,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:29:56,048 INFO L272 TraceCheckUtils]: 0: Hoare triple {397#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:29:56,048 INFO L290 TraceCheckUtils]: 1: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:29:56,049 INFO L290 TraceCheckUtils]: 2: Hoare triple {397#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:29:56,049 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {397#true} {397#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:29:56,049 INFO L272 TraceCheckUtils]: 4: Hoare triple {397#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:29:56,049 INFO L290 TraceCheckUtils]: 5: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:29:56,049 INFO L272 TraceCheckUtils]: 6: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:29:56,049 INFO L290 TraceCheckUtils]: 7: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:29:56,049 INFO L290 TraceCheckUtils]: 8: Hoare triple {397#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[] {397#true} is VALID [2022-04-28 01:29:56,050 INFO L290 TraceCheckUtils]: 9: Hoare triple {397#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:29:56,050 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {397#true} {397#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] {397#true} is VALID [2022-04-28 01:29:56,050 INFO L290 TraceCheckUtils]: 11: Hoare triple {397#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] {435#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:29:56,051 INFO L290 TraceCheckUtils]: 12: Hoare triple {435#(and (= main_~x~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {435#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:29:56,051 INFO L272 TraceCheckUtils]: 13: Hoare triple {435#(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] {397#true} is VALID [2022-04-28 01:29:56,051 INFO L290 TraceCheckUtils]: 14: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:29:56,051 INFO L290 TraceCheckUtils]: 15: Hoare triple {397#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[] {397#true} is VALID [2022-04-28 01:29:56,051 INFO L290 TraceCheckUtils]: 16: Hoare triple {397#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:29:56,052 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {397#true} {435#(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] {435#(and (= main_~x~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:29:56,053 INFO L290 TraceCheckUtils]: 18: Hoare triple {435#(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] {457#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} is VALID [2022-04-28 01:29:56,053 INFO L290 TraceCheckUtils]: 19: Hoare triple {457#(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[] {457#(and (= (+ (- 1) main_~y~0) 0) (= (* main_~y~0 (* main_~y~0 main_~y~0)) main_~x~0))} is VALID [2022-04-28 01:29:56,054 INFO L272 TraceCheckUtils]: 20: Hoare triple {457#(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] {464#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:29:56,054 INFO L290 TraceCheckUtils]: 21: Hoare triple {464#(<= 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] {468#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:29:56,055 INFO L290 TraceCheckUtils]: 22: Hoare triple {468#(<= 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[] {398#false} is VALID [2022-04-28 01:29:56,055 INFO L290 TraceCheckUtils]: 23: Hoare triple {398#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {398#false} is VALID [2022-04-28 01:29:56,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-04-28 01:29:56,056 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 01:30:01,292 INFO L290 TraceCheckUtils]: 23: Hoare triple {398#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {398#false} is VALID [2022-04-28 01:30:01,293 INFO L290 TraceCheckUtils]: 22: Hoare triple {468#(<= 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[] {398#false} is VALID [2022-04-28 01:30:01,293 INFO L290 TraceCheckUtils]: 21: Hoare triple {464#(<= 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] {468#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:30:01,294 INFO L272 TraceCheckUtils]: 20: Hoare triple {484#(= (+ (* 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] {464#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:30:01,295 INFO L290 TraceCheckUtils]: 19: Hoare triple {484#(= (+ (* 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[] {484#(= (+ (* 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 [2022-04-28 01:30:01,302 INFO L290 TraceCheckUtils]: 18: Hoare triple {484#(= (+ (* 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] {484#(= (+ (* 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 [2022-04-28 01:30:01,303 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {397#true} {484#(= (+ (* 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] {484#(= (+ (* 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 [2022-04-28 01:30:01,303 INFO L290 TraceCheckUtils]: 16: Hoare triple {397#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:30:01,303 INFO L290 TraceCheckUtils]: 15: Hoare triple {397#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[] {397#true} is VALID [2022-04-28 01:30:01,303 INFO L290 TraceCheckUtils]: 14: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:30:01,304 INFO L272 TraceCheckUtils]: 13: Hoare triple {484#(= (+ (* 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] {397#true} is VALID [2022-04-28 01:30:01,305 INFO L290 TraceCheckUtils]: 12: Hoare triple {484#(= (+ (* 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[] {484#(= (+ (* 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 [2022-04-28 01:30:01,305 INFO L290 TraceCheckUtils]: 11: Hoare triple {397#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] {484#(= (+ (* 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 [2022-04-28 01:30:01,306 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {397#true} {397#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] {397#true} is VALID [2022-04-28 01:30:01,306 INFO L290 TraceCheckUtils]: 9: Hoare triple {397#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:30:01,306 INFO L290 TraceCheckUtils]: 8: Hoare triple {397#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[] {397#true} is VALID [2022-04-28 01:30:01,306 INFO L290 TraceCheckUtils]: 7: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:30:01,306 INFO L272 TraceCheckUtils]: 6: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:30:01,307 INFO L290 TraceCheckUtils]: 5: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:30:01,307 INFO L272 TraceCheckUtils]: 4: Hoare triple {397#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:30:01,307 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {397#true} {397#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:30:01,307 INFO L290 TraceCheckUtils]: 2: Hoare triple {397#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:30:01,309 INFO L290 TraceCheckUtils]: 1: Hoare triple {397#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] {397#true} is VALID [2022-04-28 01:30:01,309 INFO L272 TraceCheckUtils]: 0: Hoare triple {397#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {397#true} is VALID [2022-04-28 01:30:01,309 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-04-28 01:30:01,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:30:01,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791064027] [2022-04-28 01:30:01,310 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:30:01,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [100492444] [2022-04-28 01:30:01,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [100492444] provided 1 perfect and 1 imperfect interpolant sequences [2022-04-28 01:30:01,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-04-28 01:30:01,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2022-04-28 01:30:01,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094186543] [2022-04-28 01:30:01,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:30:01,313 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 [2022-04-28 01:30:01,313 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:30:01,313 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) [2022-04-28 01:30:01,338 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:30:01,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-04-28 01:30:01,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:30:01,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-04-28 01:30:01,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=28, Unknown=1, NotChecked=0, Total=42 [2022-04-28 01:30:01,340 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) [2022-04-28 01:30:01,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:30:01,442 INFO L93 Difference]: Finished difference Result 36 states and 37 transitions. [2022-04-28 01:30:01,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-04-28 01:30:01,442 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 [2022-04-28 01:30:01,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:30:01,442 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) [2022-04-28 01:30:01,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2022-04-28 01:30:01,445 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) [2022-04-28 01:30:01,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 30 transitions. [2022-04-28 01:30:01,448 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 5 states and 30 transitions. [2022-04-28 01:30:01,477 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:30:01,478 INFO L225 Difference]: With dead ends: 36 [2022-04-28 01:30:01,478 INFO L226 Difference]: Without dead ends: 31 [2022-04-28 01:30:01,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56 [2022-04-28 01:30:01,481 INFO L413 NwaCegarLoop]: 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 [2022-04-28 01:30:01,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 70 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:30:01,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-04-28 01:30:01,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-04-28 01:30:01,489 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:30:01,489 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) [2022-04-28 01:30:01,489 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) [2022-04-28 01:30:01,490 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) [2022-04-28 01:30:01,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:30:01,494 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-04-28 01:30:01,494 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-04-28 01:30:01,495 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:30:01,496 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:30:01,496 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. [2022-04-28 01:30:01,496 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. [2022-04-28 01:30:01,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:30:01,497 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2022-04-28 01:30:01,497 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-04-28 01:30:01,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:30:01,497 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:30:01,498 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:30:01,498 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:30:01,498 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) [2022-04-28 01:30:01,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2022-04-28 01:30:01,499 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 24 [2022-04-28 01:30:01,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:30:01,499 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2022-04-28 01:30:01,499 INFO L496 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) [2022-04-28 01:30:01,499 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2022-04-28 01:30:01,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-04-28 01:30:01,500 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:30:01,500 INFO L195 NwaCegarLoop]: 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] [2022-04-28 01:30:01,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-04-28 01:30:01,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-04-28 01:30:01,719 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:30:01,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:30:01,720 INFO L85 PathProgramCache]: Analyzing trace with hash -434891502, now seen corresponding path program 1 times [2022-04-28 01:30:01,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:30:01,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603890615] [2022-04-28 01:30:01,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:30:01,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:30:01,731 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:30:01,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1055782713] [2022-04-28 01:30:01,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:30:01,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:30:01,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:30:01,732 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) [2022-04-28 01:30:01,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-04-28 01:30:01,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:30:01,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 19 conjunts are in the unsatisfiable core [2022-04-28 01:30:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:30:01,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:30:02,114 INFO L272 TraceCheckUtils]: 0: Hoare triple {707#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-28 01:30:02,114 INFO L290 TraceCheckUtils]: 1: Hoare triple {707#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] {707#true} is VALID [2022-04-28 01:30:02,114 INFO L290 TraceCheckUtils]: 2: Hoare triple {707#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-28 01:30:02,114 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {707#true} {707#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-28 01:30:02,115 INFO L272 TraceCheckUtils]: 4: Hoare triple {707#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-28 01:30:02,115 INFO L290 TraceCheckUtils]: 5: Hoare triple {707#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] {707#true} is VALID [2022-04-28 01:30:02,115 INFO L272 TraceCheckUtils]: 6: Hoare triple {707#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] {707#true} is VALID [2022-04-28 01:30:02,115 INFO L290 TraceCheckUtils]: 7: Hoare triple {707#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] {707#true} is VALID [2022-04-28 01:30:02,115 INFO L290 TraceCheckUtils]: 8: Hoare triple {707#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[] {707#true} is VALID [2022-04-28 01:30:02,115 INFO L290 TraceCheckUtils]: 9: Hoare triple {707#true} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-28 01:30:02,115 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {707#true} {707#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] {707#true} is VALID [2022-04-28 01:30:02,116 INFO L290 TraceCheckUtils]: 11: Hoare triple {707#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] {745#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:30:02,116 INFO L290 TraceCheckUtils]: 12: Hoare triple {745#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {745#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:30:02,116 INFO L272 TraceCheckUtils]: 13: Hoare triple {745#(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] {707#true} is VALID [2022-04-28 01:30:02,117 INFO L290 TraceCheckUtils]: 14: Hoare triple {707#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] {707#true} is VALID [2022-04-28 01:30:02,117 INFO L290 TraceCheckUtils]: 15: Hoare triple {707#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[] {707#true} is VALID [2022-04-28 01:30:02,117 INFO L290 TraceCheckUtils]: 16: Hoare triple {707#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {707#true} is VALID [2022-04-28 01:30:02,117 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {707#true} {745#(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] {745#(and (<= main_~x~0 0) (= main_~c~0 0) (= main_~y~0 0))} is VALID [2022-04-28 01:30:02,118 INFO L290 TraceCheckUtils]: 18: Hoare triple {745#(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] {767#(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 [2022-04-28 01:30:02,119 INFO L290 TraceCheckUtils]: 19: Hoare triple {767#(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[] {767#(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 [2022-04-28 01:30:02,119 INFO L272 TraceCheckUtils]: 20: Hoare triple {767#(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] {707#true} is VALID [2022-04-28 01:30:02,119 INFO L290 TraceCheckUtils]: 21: Hoare triple {707#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] {777#(= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:30:02,120 INFO L290 TraceCheckUtils]: 22: Hoare triple {777#(= |__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[] {781#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:30:02,120 INFO L290 TraceCheckUtils]: 23: Hoare triple {781#(not (= |__VERIFIER_assert_#in~cond| 0))} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {781#(not (= |__VERIFIER_assert_#in~cond| 0))} is VALID [2022-04-28 01:30:02,121 INFO L284 TraceCheckUtils]: 24: Hoare quadruple {781#(not (= |__VERIFIER_assert_#in~cond| 0))} {767#(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] {788#(and (= main_~y~0 1) (< 0 main_~k~0) (<= main_~c~0 1))} is VALID [2022-04-28 01:30:02,121 INFO L290 TraceCheckUtils]: 25: Hoare triple {788#(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[] {792#(and (<= main_~k~0 1) (= main_~y~0 1) (< 0 main_~k~0))} is VALID [2022-04-28 01:30:02,122 INFO L272 TraceCheckUtils]: 26: Hoare triple {792#(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] {796#(<= 1 |__VERIFIER_assert_#in~cond|)} is VALID [2022-04-28 01:30:02,122 INFO L290 TraceCheckUtils]: 27: Hoare triple {796#(<= 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] {800#(<= 1 __VERIFIER_assert_~cond)} is VALID [2022-04-28 01:30:02,123 INFO L290 TraceCheckUtils]: 28: Hoare triple {800#(<= 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[] {708#false} is VALID [2022-04-28 01:30:02,123 INFO L290 TraceCheckUtils]: 29: Hoare triple {708#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {708#false} is VALID [2022-04-28 01:30:02,123 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-04-28 01:30:02,123 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-04-28 01:30:34,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:30:34,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603890615] [2022-04-28 01:30:34,099 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:30:34,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055782713] [2022-04-28 01:30:34,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055782713] provided 0 perfect and 1 imperfect interpolant sequences [2022-04-28 01:30:34,099 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-04-28 01:30:34,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2022-04-28 01:30:34,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743765550] [2022-04-28 01:30:34,099 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-04-28 01:30:34,100 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 [2022-04-28 01:30:34,100 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:30:34,100 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) [2022-04-28 01:30:34,125 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:30:34,125 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-04-28 01:30:34,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:30:34,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-04-28 01:30:34,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=163, Unknown=1, NotChecked=0, Total=210 [2022-04-28 01:30:34,126 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) [2022-04-28 01:30:34,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:30:34,372 INFO L93 Difference]: Finished difference Result 39 states and 40 transitions. [2022-04-28 01:30:34,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-04-28 01:30:34,372 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 [2022-04-28 01:30:34,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:30:34,373 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) [2022-04-28 01:30:34,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 36 transitions. [2022-04-28 01:30:34,374 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) [2022-04-28 01:30:34,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 36 transitions. [2022-04-28 01:30:34,375 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 9 states and 36 transitions. [2022-04-28 01:30:34,399 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:30:34,400 INFO L225 Difference]: With dead ends: 39 [2022-04-28 01:30:34,400 INFO L226 Difference]: Without dead ends: 34 [2022-04-28 01:30:34,400 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=67, Invalid=238, Unknown=1, NotChecked=0, Total=306 [2022-04-28 01:30:34,401 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 9 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-04-28 01:30:34,401 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 107 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-04-28 01:30:34,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2022-04-28 01:30:34,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2022-04-28 01:30:34,409 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:30:34,409 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) [2022-04-28 01:30:34,409 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) [2022-04-28 01:30:34,409 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) [2022-04-28 01:30:34,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:30:34,410 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-04-28 01:30:34,410 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-04-28 01:30:34,411 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:30:34,411 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:30:34,411 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. [2022-04-28 01:30:34,411 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. [2022-04-28 01:30:34,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:30:34,412 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2022-04-28 01:30:34,412 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-04-28 01:30:34,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:30:34,412 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:30:34,413 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:30:34,413 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:30:34,413 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) [2022-04-28 01:30:34,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 35 transitions. [2022-04-28 01:30:34,414 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 35 transitions. Word has length 30 [2022-04-28 01:30:34,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:30:34,414 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 35 transitions. [2022-04-28 01:30:34,414 INFO L496 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) [2022-04-28 01:30:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 35 transitions. [2022-04-28 01:30:34,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-04-28 01:30:34,415 INFO L187 NwaCegarLoop]: Found error trace [2022-04-28 01:30:34,415 INFO L195 NwaCegarLoop]: 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] [2022-04-28 01:30:34,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-04-28 01:30:34,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:30:34,630 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-04-28 01:30:34,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-04-28 01:30:34,630 INFO L85 PathProgramCache]: Analyzing trace with hash 725792896, now seen corresponding path program 2 times [2022-04-28 01:30:34,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-04-28 01:30:34,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815245950] [2022-04-28 01:30:34,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-04-28 01:30:34,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-04-28 01:30:34,646 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-04-28 01:30:34,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976538007] [2022-04-28 01:30:34,646 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-04-28 01:30:34,646 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:30:34,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-04-28 01:30:34,652 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) [2022-04-28 01:30:34,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-04-28 01:30:34,686 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-04-28 01:30:34,686 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-04-28 01:30:34,687 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2022-04-28 01:30:34,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-04-28 01:30:34,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-04-28 01:30:34,941 INFO L272 TraceCheckUtils]: 0: Hoare triple {1031#true} [63] ULTIMATE.startENTRY-->ULTIMATE.initENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1031#true} is VALID [2022-04-28 01:30:34,941 INFO L290 TraceCheckUtils]: 1: Hoare triple {1031#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] {1031#true} is VALID [2022-04-28 01:30:34,941 INFO L290 TraceCheckUtils]: 2: Hoare triple {1031#true} [68] ULTIMATE.initFINAL-->ULTIMATE.initEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1031#true} is VALID [2022-04-28 01:30:34,941 INFO L284 TraceCheckUtils]: 3: Hoare quadruple {1031#true} {1031#true} [91] ULTIMATE.initEXIT-->L-1: AOR: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] LVA: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1031#true} is VALID [2022-04-28 01:30:34,941 INFO L272 TraceCheckUtils]: 4: Hoare triple {1031#true} [64] L-1-->mainENTRY: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1031#true} is VALID [2022-04-28 01:30:34,941 INFO L290 TraceCheckUtils]: 5: Hoare triple {1031#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] {1031#true} is VALID [2022-04-28 01:30:34,942 INFO L272 TraceCheckUtils]: 6: Hoare triple {1031#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] {1031#true} is VALID [2022-04-28 01:30:34,942 INFO L290 TraceCheckUtils]: 7: Hoare triple {1031#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] {1057#(= assume_abort_if_not_~cond |assume_abort_if_not_#in~cond|)} is VALID [2022-04-28 01:30:34,942 INFO L290 TraceCheckUtils]: 8: Hoare triple {1057#(= 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[] {1061#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:30:34,943 INFO L290 TraceCheckUtils]: 9: Hoare triple {1061#(not (= |assume_abort_if_not_#in~cond| 0))} [79] L7-2-->assume_abort_if_notEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1061#(not (= |assume_abort_if_not_#in~cond| 0))} is VALID [2022-04-28 01:30:34,943 INFO L284 TraceCheckUtils]: 10: Hoare quadruple {1061#(not (= |assume_abort_if_not_#in~cond| 0))} {1031#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] {1068#(and (<= 0 main_~k~0) (<= main_~k~0 1))} is VALID [2022-04-28 01:30:34,944 INFO L290 TraceCheckUtils]: 11: Hoare triple {1068#(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] {1072#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} is VALID [2022-04-28 01:30:34,944 INFO L290 TraceCheckUtils]: 12: Hoare triple {1072#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1072#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} is VALID [2022-04-28 01:30:34,944 INFO L272 TraceCheckUtils]: 13: Hoare triple {1072#(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] {1031#true} is VALID [2022-04-28 01:30:34,944 INFO L290 TraceCheckUtils]: 14: Hoare triple {1031#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] {1031#true} is VALID [2022-04-28 01:30:34,944 INFO L290 TraceCheckUtils]: 15: Hoare triple {1031#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[] {1031#true} is VALID [2022-04-28 01:30:34,945 INFO L290 TraceCheckUtils]: 16: Hoare triple {1031#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1031#true} is VALID [2022-04-28 01:30:34,945 INFO L284 TraceCheckUtils]: 17: Hoare quadruple {1031#true} {1072#(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] {1072#(and (<= 0 main_~k~0) (<= main_~k~0 1) (<= 0 main_~c~0))} is VALID [2022-04-28 01:30:34,946 INFO L290 TraceCheckUtils]: 18: Hoare triple {1072#(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] {1094#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} is VALID [2022-04-28 01:30:34,946 INFO L290 TraceCheckUtils]: 19: Hoare triple {1094#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1094#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} is VALID [2022-04-28 01:30:34,946 INFO L272 TraceCheckUtils]: 20: Hoare triple {1094#(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] {1031#true} is VALID [2022-04-28 01:30:34,947 INFO L290 TraceCheckUtils]: 21: Hoare triple {1031#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] {1031#true} is VALID [2022-04-28 01:30:34,947 INFO L290 TraceCheckUtils]: 22: Hoare triple {1031#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[] {1031#true} is VALID [2022-04-28 01:30:34,947 INFO L290 TraceCheckUtils]: 23: Hoare triple {1031#true} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1031#true} is VALID [2022-04-28 01:30:34,947 INFO L284 TraceCheckUtils]: 24: Hoare quadruple {1031#true} {1094#(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] {1094#(and (<= 1 main_~c~0) (<= 0 main_~k~0) (<= main_~k~0 1))} is VALID [2022-04-28 01:30:34,948 INFO L290 TraceCheckUtils]: 25: Hoare triple {1094#(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] {1032#false} is VALID [2022-04-28 01:30:34,948 INFO L290 TraceCheckUtils]: 26: Hoare triple {1032#false} [74] L27-2-->L28: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1032#false} is VALID [2022-04-28 01:30:34,948 INFO L272 TraceCheckUtils]: 27: Hoare triple {1032#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] {1032#false} is VALID [2022-04-28 01:30:34,948 INFO L290 TraceCheckUtils]: 28: Hoare triple {1032#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] {1032#false} is VALID [2022-04-28 01:30:34,948 INFO L290 TraceCheckUtils]: 29: Hoare triple {1032#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[] {1032#false} is VALID [2022-04-28 01:30:34,949 INFO L290 TraceCheckUtils]: 30: Hoare triple {1032#false} [90] L10-2-->__VERIFIER_assertEXIT: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1032#false} is VALID [2022-04-28 01:30:34,949 INFO L284 TraceCheckUtils]: 31: Hoare quadruple {1032#false} {1032#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] {1032#false} is VALID [2022-04-28 01:30:34,949 INFO L290 TraceCheckUtils]: 32: Hoare triple {1032#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[] {1032#false} is VALID [2022-04-28 01:30:34,949 INFO L272 TraceCheckUtils]: 33: Hoare triple {1032#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] {1032#false} is VALID [2022-04-28 01:30:34,949 INFO L290 TraceCheckUtils]: 34: Hoare triple {1032#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] {1032#false} is VALID [2022-04-28 01:30:34,949 INFO L290 TraceCheckUtils]: 35: Hoare triple {1032#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[] {1032#false} is VALID [2022-04-28 01:30:34,949 INFO L290 TraceCheckUtils]: 36: Hoare triple {1032#false} [88] L11-->__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: true InVars {} OutVars{} AuxVars[] AssignedVars[] {1032#false} is VALID [2022-04-28 01:30:34,949 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-04-28 01:30:34,950 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-04-28 01:30:34,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-04-28 01:30:34,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815245950] [2022-04-28 01:30:34,950 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-04-28 01:30:34,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976538007] [2022-04-28 01:30:34,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976538007] provided 1 perfect and 0 imperfect interpolant sequences [2022-04-28 01:30:34,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-04-28 01:30:34,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-04-28 01:30:34,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016822348] [2022-04-28 01:30:34,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-04-28 01:30:34,951 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 [2022-04-28 01:30:34,951 INFO L84 Accepts]: Finished accepts. word is accepted. [2022-04-28 01:30:34,951 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) [2022-04-28 01:30:34,973 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:30:34,973 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-04-28 01:30:34,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-04-28 01:30:34,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-04-28 01:30:34,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-04-28 01:30:34,974 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) [2022-04-28 01:30:35,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:30:35,048 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2022-04-28 01:30:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-04-28 01:30:35,048 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 [2022-04-28 01:30:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-04-28 01:30:35,049 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) [2022-04-28 01:30:35,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2022-04-28 01:30:35,050 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) [2022-04-28 01:30:35,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 34 transitions. [2022-04-28 01:30:35,050 INFO L86 InductivityCheck]: Starting inductivity check of a Floyd-Hoare automaton with 7 states and 34 transitions. [2022-04-28 01:30:35,073 INFO L122 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2022-04-28 01:30:35,073 INFO L225 Difference]: With dead ends: 38 [2022-04-28 01:30:35,073 INFO L226 Difference]: Without dead ends: 0 [2022-04-28 01:30:35,073 INFO L412 NwaCegarLoop]: 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 [2022-04-28 01:30:35,074 INFO L413 NwaCegarLoop]: 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 [2022-04-28 01:30:35,074 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 64 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-04-28 01:30:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-04-28 01:30:35,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-04-28 01:30:35,075 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2022-04-28 01:30:35,075 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) [2022-04-28 01:30:35,075 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) [2022-04-28 01:30:35,075 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) [2022-04-28 01:30:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:30:35,075 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-28 01:30:35,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 01:30:35,075 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:30:35,075 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:30:35,075 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. [2022-04-28 01:30:35,075 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. [2022-04-28 01:30:35,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-04-28 01:30:35,076 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2022-04-28 01:30:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 01:30:35,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:30:35,076 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2022-04-28 01:30:35,076 INFO L88 GeneralOperation]: Finished isEquivalent. [2022-04-28 01:30:35,076 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2022-04-28 01:30:35,076 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) [2022-04-28 01:30:35,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-04-28 01:30:35,076 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 37 [2022-04-28 01:30:35,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-04-28 01:30:35,076 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-04-28 01:30:35,076 INFO L496 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) [2022-04-28 01:30:35,076 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-04-28 01:30:35,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-04-28 01:30:35,078 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-04-28 01:30:35,096 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-04-28 01:30:35,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-04-28 01:30:35,295 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-04-28 01:30:35,446 INFO L895 garLoopResultBuilder]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2022-04-28 01:30:35,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2022-04-28 01:30:35,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2022-04-28 01:30:35,447 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-04-28 01:30:35,447 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2022-04-28 01:30:35,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-04-28 01:30:35,447 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-04-28 01:30:35,447 INFO L902 garLoopResultBuilder]: At program point assume_abort_if_notENTRY(lines 6 8) the Hoare annotation is: true [2022-04-28 01:30:35,447 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-04-28 01:30:35,447 INFO L899 garLoopResultBuilder]: For program point L7-2(lines 6 8) no Hoare annotation was computed. [2022-04-28 01:30:35,447 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 6 8) no Hoare annotation was computed. [2022-04-28 01:30:35,447 INFO L902 garLoopResultBuilder]: At program point mainENTRY(lines 17 40) the Hoare annotation is: true [2022-04-28 01:30:35,447 INFO L902 garLoopResultBuilder]: At program point L21(line 21) the Hoare annotation is: true [2022-04-28 01:30:35,447 INFO L899 garLoopResultBuilder]: For program point L21-1(line 21) no Hoare annotation was computed. [2022-04-28 01:30:35,447 INFO L895 garLoopResultBuilder]: At program point L27-2(lines 27 36) the Hoare annotation is: (let ((.cse0 (<= main_~k~0 1)) (.cse1 (= (+ (* 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)))) (or (and (<= 1 main_~c~0) .cse0 (= main_~y~0 1) (< 0 main_~k~0) .cse1 (<= main_~c~0 1)) (and (<= 0 main_~k~0) .cse0 (= main_~c~0 0) (= main_~y~0 0) .cse1))) [2022-04-28 01:30:35,447 INFO L895 garLoopResultBuilder]: At program point L27-3(lines 27 36) the Hoare annotation is: (or (and (= main_~x~0 0) (= main_~y~0 0)) (let ((.cse0 (* main_~y~0 main_~y~0 main_~y~0))) (and (<= main_~k~0 1) (<= main_~x~0 .cse0) (< 0 main_~k~0) (= (+ (* main_~y~0 main_~y~0 main_~y~0 main_~y~0) (* main_~y~0 main_~y~0) (* .cse0 2)) (* main_~x~0 4)) (<= main_~c~0 1)))) [2022-04-28 01:30:35,448 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (let ((.cse0 (<= main_~k~0 1)) (.cse1 (= (+ (* 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)))) (or (and (<= 1 main_~c~0) .cse0 (= main_~y~0 1) (< 0 main_~k~0) .cse1 (<= main_~c~0 1)) (and (<= 0 main_~k~0) .cse0 (= main_~c~0 0) (= main_~y~0 0) .cse1))) [2022-04-28 01:30:35,448 INFO L895 garLoopResultBuilder]: At program point L37(line 37) the Hoare annotation is: (= (+ (* 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)) [2022-04-28 01:30:35,448 INFO L899 garLoopResultBuilder]: For program point L28-1(lines 27 36) no Hoare annotation was computed. [2022-04-28 01:30:35,448 INFO L899 garLoopResultBuilder]: For program point L38(line 38) no Hoare annotation was computed. [2022-04-28 01:30:35,448 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 17 40) no Hoare annotation was computed. [2022-04-28 01:30:35,448 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 17 40) no Hoare annotation was computed. [2022-04-28 01:30:35,448 INFO L902 garLoopResultBuilder]: At program point __VERIFIER_assertENTRY(lines 9 15) the Hoare annotation is: true [2022-04-28 01:30:35,448 INFO L899 garLoopResultBuilder]: For program point L10(lines 10 13) no Hoare annotation was computed. [2022-04-28 01:30:35,448 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 12) no Hoare annotation was computed. [2022-04-28 01:30:35,448 INFO L899 garLoopResultBuilder]: For program point L10-2(lines 9 15) no Hoare annotation was computed. [2022-04-28 01:30:35,448 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2022-04-28 01:30:35,448 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 9 15) no Hoare annotation was computed. [2022-04-28 01:30:35,450 INFO L356 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1] [2022-04-28 01:30:35,458 INFO L176 ceAbstractionStarter]: Computing trace abstraction results [2022-04-28 01:30:35,461 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L10 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L11 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L10-2 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: assume_abort_if_notEXIT has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L28-1 has no Hoare annotation [2022-04-28 01:30:35,462 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2022-04-28 01:30:35,467 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2022-04-28 01:30:35,467 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2022-04-28 01:30:35,467 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2022-04-28 01:30:35,467 INFO L163 areAnnotationChecker]: CFG has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2022-04-28 01:30:35,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.04 01:30:35 BasicIcfg [2022-04-28 01:30:35,478 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-04-28 01:30:35,479 INFO L158 Benchmark]: Toolchain (without parser) took 41418.21ms. Allocated memory was 181.4MB in the beginning and 264.2MB in the end (delta: 82.8MB). Free memory was 126.9MB in the beginning and 199.0MB in the end (delta: -72.2MB). Peak memory consumption was 10.2MB. Max. memory is 8.0GB. [2022-04-28 01:30:35,479 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 181.4MB. Free memory is still 143.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-04-28 01:30:35,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.09ms. Allocated memory was 181.4MB in the beginning and 264.2MB in the end (delta: 82.8MB). Free memory was 126.7MB in the beginning and 237.6MB in the end (delta: -111.0MB). Peak memory consumption was 5.5MB. Max. memory is 8.0GB. [2022-04-28 01:30:35,480 INFO L158 Benchmark]: Boogie Preprocessor took 28.99ms. Allocated memory is still 264.2MB. Free memory was 237.6MB in the beginning and 236.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-04-28 01:30:35,481 INFO L158 Benchmark]: RCFGBuilder took 289.32ms. Allocated memory is still 264.2MB. Free memory was 236.0MB in the beginning and 224.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-04-28 01:30:35,481 INFO L158 Benchmark]: IcfgTransformer took 17.20ms. Allocated memory is still 264.2MB. Free memory was 224.5MB in the beginning and 222.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-04-28 01:30:35,482 INFO L158 Benchmark]: TraceAbstraction took 40849.97ms. Allocated memory is still 264.2MB. Free memory was 222.4MB in the beginning and 199.0MB in the end (delta: 23.4MB). Peak memory consumption was 24.4MB. Max. memory is 8.0GB. [2022-04-28 01:30:35,483 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 181.4MB. Free memory is still 143.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.09ms. Allocated memory was 181.4MB in the beginning and 264.2MB in the end (delta: 82.8MB). Free memory was 126.7MB in the beginning and 237.6MB in the end (delta: -111.0MB). Peak memory consumption was 5.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.99ms. Allocated memory is still 264.2MB. Free memory was 237.6MB in the beginning and 236.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 289.32ms. Allocated memory is still 264.2MB. Free memory was 236.0MB in the beginning and 224.5MB in the end (delta: 11.5MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * IcfgTransformer took 17.20ms. Allocated memory is still 264.2MB. Free memory was 224.5MB in the beginning and 222.9MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * TraceAbstraction took 40849.97ms. Allocated memory is still 264.2MB. Free memory was 222.4MB in the beginning and 199.0MB in the end (delta: 23.4MB). Peak memory consumption was 24.4MB. 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: 40.8s, OverallIterations: 5, TraceHistogramMax: 4, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 48 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 347 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 239 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 155 IncrementalHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 108 mSDtfsCounter, 155 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 154 GetRequests, 118 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 18.8s 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: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 21 PreInvPairs, 29 NumberOfFragments, 211 HoareAnnotationTreeSize, 21 FomulaSimplifications, 22 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 29 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 38.2s 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 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((1 <= c && k <= 1) && y == 1) && 0 < k) && y * y * y * y + y * y + y * y * y * 2 == x * 4) && c <= 1) || ((((0 <= k && k <= 1) && c == 0) && y == 0) && y * y * y * y + y * y + y * y * y * 2 == x * 4) RESULT: Ultimate proved your program to be correct! [2022-04-28 01:30:35,506 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...