/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/eca-rers2012/Problem11_label22.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 22:16:53,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 22:16:53,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 22:16:53,326 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 22:16:53,326 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 22:16:53,329 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 22:16:53,332 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 22:16:53,334 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 22:16:53,336 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 22:16:53,340 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 22:16:53,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 22:16:53,343 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 22:16:53,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 22:16:53,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 22:16:53,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 22:16:53,348 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 22:16:53,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 22:16:53,349 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 22:16:53,351 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 22:16:53,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 22:16:53,357 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 22:16:53,358 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 22:16:53,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 22:16:53,360 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 22:16:53,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 22:16:53,364 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 22:16:53,364 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 22:16:53,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 22:16:53,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 22:16:53,368 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 22:16:53,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 22:16:53,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 22:16:53,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 22:16:53,370 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 22:16:53,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 22:16:53,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 22:16:53,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 22:16:53,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 22:16:53,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 22:16:53,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 22:16:53,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 22:16:53,374 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-01 22:16:53,394 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 22:16:53,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 22:16:53,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 22:16:53,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 22:16:53,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 22:16:53,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 22:16:53,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 22:16:53,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 22:16:53,396 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 22:16:53,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 22:16:53,397 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 22:16:53,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 22:16:53,398 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 22:16:53,398 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 22:16:53,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 22:16:53,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 22:16:53,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 22:16:53,398 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 22:16:53,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 22:16:53,398 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 22:16:53,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 22:16:53,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 22:16:53,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 22:16:53,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 22:16:53,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 22:16:53,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 22:16:53,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 22:16:53,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 22:16:53,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 22:16:53,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 22:16:53,400 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 22:16:53,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 22:16:53,400 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 22:16:53,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 22:16:53,400 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 22:16:53,400 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 22:16:53,630 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 22:16:53,653 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 22:16:53,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 22:16:53,656 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 22:16:53,656 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 22:16:53,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem11_label22.c [2023-04-01 22:16:54,817 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 22:16:55,139 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 22:16:55,140 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label22.c [2023-04-01 22:16:55,150 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39523883e/ed38cc914cf9453ba30e05ccd43bc03f/FLAG8bd72f51f [2023-04-01 22:16:55,163 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39523883e/ed38cc914cf9453ba30e05ccd43bc03f [2023-04-01 22:16:55,165 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 22:16:55,167 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 22:16:55,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 22:16:55,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 22:16:55,173 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 22:16:55,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:55,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e8d87c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55, skipping insertion in model container [2023-04-01 22:16:55,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:55,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 22:16:55,233 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 22:16:55,488 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label22.c[8004,8017] [2023-04-01 22:16:55,709 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 22:16:55,721 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 22:16:55,745 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem11_label22.c[8004,8017] [2023-04-01 22:16:55,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 22:16:55,864 INFO L208 MainTranslator]: Completed translation [2023-04-01 22:16:55,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55 WrapperNode [2023-04-01 22:16:55,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 22:16:55,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 22:16:55,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 22:16:55,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 22:16:55,875 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:55,876 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:55,907 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:55,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:55,960 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:55,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:55,993 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:56,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:56,011 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 22:16:56,012 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 22:16:56,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 22:16:56,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 22:16:56,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (1/1) ... [2023-04-01 22:16:56,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 22:16:56,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:16:56,042 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) [2023-04-01 22:16:56,067 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 [2023-04-01 22:16:56,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 22:16:56,092 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 22:16:56,094 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 22:16:56,095 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2023-04-01 22:16:56,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 22:16:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2023-04-01 22:16:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 22:16:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 22:16:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 22:16:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 22:16:56,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 22:16:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2023-04-01 22:16:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 22:16:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 22:16:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 22:16:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 22:16:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 22:16:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 22:16:56,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 22:16:56,160 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 22:16:56,163 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 22:16:57,528 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 22:16:57,541 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 22:16:57,542 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 22:16:57,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:16:57 BoogieIcfgContainer [2023-04-01 22:16:57,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 22:16:57,547 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 22:16:57,547 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 22:16:57,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 22:16:57,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 10:16:55" (1/3) ... [2023-04-01 22:16:57,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b22cce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:16:57, skipping insertion in model container [2023-04-01 22:16:57,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 10:16:55" (2/3) ... [2023-04-01 22:16:57,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b22cce2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 10:16:57, skipping insertion in model container [2023-04-01 22:16:57,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 10:16:57" (3/3) ... [2023-04-01 22:16:57,552 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label22.c [2023-04-01 22:16:57,567 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 22:16:57,567 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 22:16:57,629 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 22:16:57,635 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=PETRI_NET, 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=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@546fdff5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 22:16:57,635 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 22:16:57,640 INFO L276 IsEmpty]: Start isEmpty. Operand has 292 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 22:16:57,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-04-01 22:16:57,648 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:16:57,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:16:57,650 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:16:57,654 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:16:57,654 INFO L85 PathProgramCache]: Analyzing trace with hash 815333682, now seen corresponding path program 1 times [2023-04-01 22:16:57,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:16:57,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645921083] [2023-04-01 22:16:57,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:16:57,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:16:57,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:16:58,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:16:58,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:16:58,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:16:58,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:16:58,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645921083] [2023-04-01 22:16:58,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645921083] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:16:58,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 22:16:58,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-04-01 22:16:58,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597192408] [2023-04-01 22:16:58,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:16:58,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-04-01 22:16:58,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:16:58,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-04-01 22:16:58,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-04-01 22:16:58,321 INFO L87 Difference]: Start difference. First operand has 292 states, 284 states have (on average 1.7077464788732395) internal successors, (485), 285 states have internal predecessors, (485), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 22:16:59,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:16:59,891 INFO L93 Difference]: Finished difference Result 791 states and 1386 transitions. [2023-04-01 22:16:59,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-04-01 22:16:59,894 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 61 [2023-04-01 22:16:59,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:16:59,906 INFO L225 Difference]: With dead ends: 791 [2023-04-01 22:16:59,906 INFO L226 Difference]: Without dead ends: 434 [2023-04-01 22:16:59,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-04-01 22:16:59,917 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 634 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 162 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 162 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-04-01 22:16:59,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 59 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [162 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-04-01 22:16:59,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-04-01 22:16:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 430. [2023-04-01 22:16:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 420 states have (on average 1.4452380952380952) internal successors, (607), 422 states have internal predecessors, (607), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2023-04-01 22:16:59,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 618 transitions. [2023-04-01 22:16:59,986 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 618 transitions. Word has length 61 [2023-04-01 22:16:59,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:16:59,987 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 618 transitions. [2023-04-01 22:16:59,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 22:16:59,987 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 618 transitions. [2023-04-01 22:16:59,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2023-04-01 22:16:59,991 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:16:59,992 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:16:59,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 22:16:59,992 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:16:59,993 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:16:59,993 INFO L85 PathProgramCache]: Analyzing trace with hash -150324874, now seen corresponding path program 1 times [2023-04-01 22:16:59,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:16:59,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770598278] [2023-04-01 22:16:59,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:16:59,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:00,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:00,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:00,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:00,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:00,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:00,446 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:00,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:00,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770598278] [2023-04-01 22:17:00,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770598278] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:17:00,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 22:17:00,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-04-01 22:17:00,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240873459] [2023-04-01 22:17:00,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:17:00,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-04-01 22:17:00,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:00,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-04-01 22:17:00,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-04-01 22:17:00,450 INFO L87 Difference]: Start difference. First operand 430 states and 618 transitions. Second operand has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 22:17:02,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:02,465 INFO L93 Difference]: Finished difference Result 1664 states and 2471 transitions. [2023-04-01 22:17:02,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-04-01 22:17:02,466 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 133 [2023-04-01 22:17:02,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:02,474 INFO L225 Difference]: With dead ends: 1664 [2023-04-01 22:17:02,474 INFO L226 Difference]: Without dead ends: 1240 [2023-04-01 22:17:02,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2023-04-01 22:17:02,477 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 1649 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 1451 mSolverCounterSat, 374 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1649 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 374 IncrementalHoareTripleChecker+Valid, 1451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:02,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1649 Valid, 146 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [374 Valid, 1451 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-04-01 22:17:02,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1240 states. [2023-04-01 22:17:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1240 to 1208. [2023-04-01 22:17:02,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1208 states, 1181 states have (on average 1.3767993226079593) internal successors, (1626), 1192 states have internal predecessors, (1626), 8 states have call successors, (8), 8 states have call predecessors, (8), 18 states have return successors, (55), 7 states have call predecessors, (55), 7 states have call successors, (55) [2023-04-01 22:17:02,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1208 states to 1208 states and 1689 transitions. [2023-04-01 22:17:02,528 INFO L78 Accepts]: Start accepts. Automaton has 1208 states and 1689 transitions. Word has length 133 [2023-04-01 22:17:02,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:02,528 INFO L495 AbstractCegarLoop]: Abstraction has 1208 states and 1689 transitions. [2023-04-01 22:17:02,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 18.142857142857142) internal successors, (127), 5 states have internal predecessors, (127), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 22:17:02,528 INFO L276 IsEmpty]: Start isEmpty. Operand 1208 states and 1689 transitions. [2023-04-01 22:17:02,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2023-04-01 22:17:02,531 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:02,531 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:02,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-04-01 22:17:02,531 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:02,532 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1446333158, now seen corresponding path program 1 times [2023-04-01 22:17:02,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:02,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729883116] [2023-04-01 22:17:02,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:02,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:02,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:02,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:02,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:02,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:02,754 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:02,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:02,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729883116] [2023-04-01 22:17:02,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729883116] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:02,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460078836] [2023-04-01 22:17:02,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:02,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:02,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:02,761 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) [2023-04-01 22:17:02,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 22:17:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:02,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:17:02,929 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:03,103 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:03,104 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:17:03,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460078836] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:17:03,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:17:03,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-04-01 22:17:03,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217104494] [2023-04-01 22:17:03,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:17:03,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 22:17:03,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:03,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 22:17:03,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 22:17:03,107 INFO L87 Difference]: Start difference. First operand 1208 states and 1689 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 22:17:03,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:03,849 INFO L93 Difference]: Finished difference Result 2803 states and 3960 transitions. [2023-04-01 22:17:03,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 22:17:03,850 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (4), 2 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 135 [2023-04-01 22:17:03,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:03,858 INFO L225 Difference]: With dead ends: 2803 [2023-04-01 22:17:03,859 INFO L226 Difference]: Without dead ends: 1601 [2023-04-01 22:17:03,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 22:17:03,862 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 163 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:03,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 111 Invalid, 683 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 22:17:03,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1601 states. [2023-04-01 22:17:03,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1601 to 1401. [2023-04-01 22:17:03,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1401 states, 1370 states have (on average 1.3948905109489051) internal successors, (1911), 1383 states have internal predecessors, (1911), 9 states have call successors, (9), 9 states have call predecessors, (9), 21 states have return successors, (71), 8 states have call predecessors, (71), 8 states have call successors, (71) [2023-04-01 22:17:03,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1401 states to 1401 states and 1991 transitions. [2023-04-01 22:17:03,902 INFO L78 Accepts]: Start accepts. Automaton has 1401 states and 1991 transitions. Word has length 135 [2023-04-01 22:17:03,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:03,903 INFO L495 AbstractCegarLoop]: Abstraction has 1401 states and 1991 transitions. [2023-04-01 22:17:03,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-04-01 22:17:03,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1401 states and 1991 transitions. [2023-04-01 22:17:03,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2023-04-01 22:17:03,906 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:03,906 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:03,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:04,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:04,113 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:04,113 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:04,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1873897466, now seen corresponding path program 1 times [2023-04-01 22:17:04,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:04,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468923631] [2023-04-01 22:17:04,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:04,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:04,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:04,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:04,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:04,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:04,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:04,483 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:04,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:04,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468923631] [2023-04-01 22:17:04,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468923631] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:17:04,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 22:17:04,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 22:17:04,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14161796] [2023-04-01 22:17:04,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:17:04,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-04-01 22:17:04,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:04,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-04-01 22:17:04,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-04-01 22:17:04,489 INFO L87 Difference]: Start difference. First operand 1401 states and 1991 transitions. Second operand has 7 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 22:17:06,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:06,208 INFO L93 Difference]: Finished difference Result 4207 states and 6172 transitions. [2023-04-01 22:17:06,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-04-01 22:17:06,208 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 141 [2023-04-01 22:17:06,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:06,222 INFO L225 Difference]: With dead ends: 4207 [2023-04-01 22:17:06,222 INFO L226 Difference]: Without dead ends: 2812 [2023-04-01 22:17:06,227 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2023-04-01 22:17:06,233 INFO L413 NwaCegarLoop]: 42 mSDtfsCounter, 670 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1457 mSolverCounterSat, 167 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 1624 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 167 IncrementalHoareTripleChecker+Valid, 1457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:06,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 133 Invalid, 1624 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [167 Valid, 1457 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 22:17:06,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2812 states. [2023-04-01 22:17:06,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2812 to 2785. [2023-04-01 22:17:06,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2785 states, 2709 states have (on average 1.276485788113695) internal successors, (3458), 2753 states have internal predecessors, (3458), 16 states have call successors, (16), 16 states have call predecessors, (16), 59 states have return successors, (276), 15 states have call predecessors, (276), 15 states have call successors, (276) [2023-04-01 22:17:06,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 3750 transitions. [2023-04-01 22:17:06,322 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 3750 transitions. Word has length 141 [2023-04-01 22:17:06,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:06,323 INFO L495 AbstractCegarLoop]: Abstraction has 2785 states and 3750 transitions. [2023-04-01 22:17:06,323 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 22.5) internal successors, (135), 4 states have internal predecessors, (135), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 22:17:06,323 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 3750 transitions. [2023-04-01 22:17:06,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2023-04-01 22:17:06,329 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:06,330 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:06,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-04-01 22:17:06,330 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:06,334 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1709234340, now seen corresponding path program 1 times [2023-04-01 22:17:06,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:06,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431887037] [2023-04-01 22:17:06,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:06,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:06,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:06,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:06,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 53 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:06,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:06,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431887037] [2023-04-01 22:17:06,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431887037] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:06,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2036616963] [2023-04-01 22:17:06,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:06,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:06,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:06,679 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) [2023-04-01 22:17:06,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 22:17:06,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:06,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-01 22:17:06,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 3 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:07,034 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:17:07,541 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:07,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2036616963] provided 1 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:07,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-04-01 22:17:07,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 6] total 13 [2023-04-01 22:17:07,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868504350] [2023-04-01 22:17:07,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:17:07,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 22:17:07,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:07,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 22:17:07,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-04-01 22:17:07,543 INFO L87 Difference]: Start difference. First operand 2785 states and 3750 transitions. Second operand has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 22:17:09,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:09,125 INFO L93 Difference]: Finished difference Result 8687 states and 12453 transitions. [2023-04-01 22:17:09,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 22:17:09,128 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 192 [2023-04-01 22:17:09,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:09,161 INFO L225 Difference]: With dead ends: 8687 [2023-04-01 22:17:09,161 INFO L226 Difference]: Without dead ends: 6096 [2023-04-01 22:17:09,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2023-04-01 22:17:09,171 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 615 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 1434 mSolverCounterSat, 384 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 384 IncrementalHoareTripleChecker+Valid, 1434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:09,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 127 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [384 Valid, 1434 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 22:17:09,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6096 states. [2023-04-01 22:17:09,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6096 to 6076. [2023-04-01 22:17:09,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6076 states, 5925 states have (on average 1.2766244725738396) internal successors, (7564), 6010 states have internal predecessors, (7564), 33 states have call successors, (33), 33 states have call predecessors, (33), 117 states have return successors, (857), 32 states have call predecessors, (857), 32 states have call successors, (857) [2023-04-01 22:17:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6076 states to 6076 states and 8454 transitions. [2023-04-01 22:17:09,362 INFO L78 Accepts]: Start accepts. Automaton has 6076 states and 8454 transitions. Word has length 192 [2023-04-01 22:17:09,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:09,362 INFO L495 AbstractCegarLoop]: Abstraction has 6076 states and 8454 transitions. [2023-04-01 22:17:09,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.0) internal successors, (186), 5 states have internal predecessors, (186), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-04-01 22:17:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 6076 states and 8454 transitions. [2023-04-01 22:17:09,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2023-04-01 22:17:09,367 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:09,367 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:09,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:09,572 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:09,573 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:09,573 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:09,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1228543387, now seen corresponding path program 1 times [2023-04-01 22:17:09,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:09,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242958710] [2023-04-01 22:17:09,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:09,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:09,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:09,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:09,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:09,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:09,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:09,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-01 22:17:09,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:09,912 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 22:17:09,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:09,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242958710] [2023-04-01 22:17:09,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242958710] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:09,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1177115304] [2023-04-01 22:17:09,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:09,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:09,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:09,914 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) [2023-04-01 22:17:09,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 22:17:10,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:10,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:17:10,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:10,107 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-04-01 22:17:10,108 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:17:10,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1177115304] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:17:10,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:17:10,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2023-04-01 22:17:10,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516277005] [2023-04-01 22:17:10,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:17:10,109 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 22:17:10,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:10,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 22:17:10,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-01 22:17:10,110 INFO L87 Difference]: Start difference. First operand 6076 states and 8454 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 22:17:10,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:10,936 INFO L93 Difference]: Finished difference Result 11964 states and 16764 transitions. [2023-04-01 22:17:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 22:17:10,936 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 204 [2023-04-01 22:17:10,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:10,964 INFO L225 Difference]: With dead ends: 11964 [2023-04-01 22:17:10,964 INFO L226 Difference]: Without dead ends: 6082 [2023-04-01 22:17:10,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-04-01 22:17:10,978 INFO L413 NwaCegarLoop]: 368 mSDtfsCounter, 145 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:10,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 399 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 22:17:10,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6082 states. [2023-04-01 22:17:11,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6082 to 6076. [2023-04-01 22:17:11,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6076 states, 5925 states have (on average 1.2313924050632912) internal successors, (7296), 6010 states have internal predecessors, (7296), 33 states have call successors, (33), 33 states have call predecessors, (33), 117 states have return successors, (758), 32 states have call predecessors, (758), 32 states have call successors, (758) [2023-04-01 22:17:11,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6076 states to 6076 states and 8087 transitions. [2023-04-01 22:17:11,138 INFO L78 Accepts]: Start accepts. Automaton has 6076 states and 8087 transitions. Word has length 204 [2023-04-01 22:17:11,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:11,138 INFO L495 AbstractCegarLoop]: Abstraction has 6076 states and 8087 transitions. [2023-04-01 22:17:11,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 22:17:11,139 INFO L276 IsEmpty]: Start isEmpty. Operand 6076 states and 8087 transitions. [2023-04-01 22:17:11,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-04-01 22:17:11,144 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:11,144 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:11,151 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-04-01 22:17:11,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:11,345 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:11,345 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:11,345 INFO L85 PathProgramCache]: Analyzing trace with hash 735787791, now seen corresponding path program 1 times [2023-04-01 22:17:11,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:11,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885128691] [2023-04-01 22:17:11,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:11,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:11,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:11,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:11,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:11,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:11,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-04-01 22:17:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:11,664 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-04-01 22:17:11,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:11,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885128691] [2023-04-01 22:17:11,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885128691] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:11,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1544504428] [2023-04-01 22:17:11,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:11,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:11,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:11,666 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) [2023-04-01 22:17:11,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-04-01 22:17:11,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:11,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:17:11,785 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2023-04-01 22:17:11,853 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:17:11,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1544504428] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:17:11,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:17:11,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2023-04-01 22:17:11,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051186358] [2023-04-01 22:17:11,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:17:11,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 22:17:11,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:11,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 22:17:11,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 22:17:11,855 INFO L87 Difference]: Start difference. First operand 6076 states and 8087 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 22:17:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:12,671 INFO L93 Difference]: Finished difference Result 13671 states and 18885 transitions. [2023-04-01 22:17:12,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 22:17:12,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 222 [2023-04-01 22:17:12,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:12,714 INFO L225 Difference]: With dead ends: 13671 [2023-04-01 22:17:12,714 INFO L226 Difference]: Without dead ends: 7789 [2023-04-01 22:17:12,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 227 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 22:17:12,732 INFO L413 NwaCegarLoop]: 165 mSDtfsCounter, 153 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:12,732 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 196 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 22:17:12,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7789 states. [2023-04-01 22:17:12,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7789 to 7413. [2023-04-01 22:17:12,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7413 states, 7237 states have (on average 1.2156971120630096) internal successors, (8798), 7333 states have internal predecessors, (8798), 40 states have call successors, (40), 40 states have call predecessors, (40), 135 states have return successors, (965), 39 states have call predecessors, (965), 39 states have call successors, (965) [2023-04-01 22:17:12,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7413 states to 7413 states and 9803 transitions. [2023-04-01 22:17:12,980 INFO L78 Accepts]: Start accepts. Automaton has 7413 states and 9803 transitions. Word has length 222 [2023-04-01 22:17:12,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:12,981 INFO L495 AbstractCegarLoop]: Abstraction has 7413 states and 9803 transitions. [2023-04-01 22:17:12,982 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 22:17:12,982 INFO L276 IsEmpty]: Start isEmpty. Operand 7413 states and 9803 transitions. [2023-04-01 22:17:12,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2023-04-01 22:17:12,991 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:12,991 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:13,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:13,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:13,197 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:13,198 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:13,199 INFO L85 PathProgramCache]: Analyzing trace with hash 620574052, now seen corresponding path program 1 times [2023-04-01 22:17:13,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:13,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849353064] [2023-04-01 22:17:13,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:13,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:13,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:13,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:13,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:13,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:13,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:13,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-01 22:17:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:13,586 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 178 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 22:17:13,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:13,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849353064] [2023-04-01 22:17:13,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849353064] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:13,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365710533] [2023-04-01 22:17:13,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:13,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:13,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:13,588 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:17:13,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-04-01 22:17:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:13,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-01 22:17:13,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:13,871 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:13,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:17:14,283 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:14,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365710533] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:17:14,283 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:17:14,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 9 [2023-04-01 22:17:14,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789977135] [2023-04-01 22:17:14,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:17:14,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-01 22:17:14,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:14,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-01 22:17:14,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2023-04-01 22:17:14,285 INFO L87 Difference]: Start difference. First operand 7413 states and 9803 transitions. Second operand has 9 states, 9 states have (on average 41.22222222222222) internal successors, (371), 7 states have internal predecessors, (371), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-01 22:17:15,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:15,684 INFO L93 Difference]: Finished difference Result 16850 states and 23141 transitions. [2023-04-01 22:17:15,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 22:17:15,685 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 41.22222222222222) internal successors, (371), 7 states have internal predecessors, (371), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 257 [2023-04-01 22:17:15,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:15,720 INFO L225 Difference]: With dead ends: 16850 [2023-04-01 22:17:15,720 INFO L226 Difference]: Without dead ends: 9631 [2023-04-01 22:17:15,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 530 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2023-04-01 22:17:15,771 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 1192 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1042 mSolverCounterSat, 294 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1192 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 294 IncrementalHoareTripleChecker+Valid, 1042 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:15,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1192 Valid, 118 Invalid, 1336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [294 Valid, 1042 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-01 22:17:15,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9631 states. [2023-04-01 22:17:15,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9631 to 9557. [2023-04-01 22:17:15,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9557 states, 9317 states have (on average 1.1785982612428894) internal successors, (10981), 9455 states have internal predecessors, (10981), 51 states have call successors, (51), 51 states have call predecessors, (51), 188 states have return successors, (1166), 50 states have call predecessors, (1166), 50 states have call successors, (1166) [2023-04-01 22:17:15,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 12198 transitions. [2023-04-01 22:17:15,993 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 12198 transitions. Word has length 257 [2023-04-01 22:17:15,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:15,993 INFO L495 AbstractCegarLoop]: Abstraction has 9557 states and 12198 transitions. [2023-04-01 22:17:15,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 41.22222222222222) internal successors, (371), 7 states have internal predecessors, (371), 3 states have call successors, (9), 6 states have call predecessors, (9), 4 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-04-01 22:17:15,994 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 12198 transitions. [2023-04-01 22:17:16,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2023-04-01 22:17:16,000 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:16,000 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:16,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:16,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:16,207 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:16,207 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:16,207 INFO L85 PathProgramCache]: Analyzing trace with hash -1515404986, now seen corresponding path program 1 times [2023-04-01 22:17:16,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:16,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318315541] [2023-04-01 22:17:16,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:16,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:16,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:16,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:16,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:16,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:16,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:16,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-01 22:17:16,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:16,533 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-04-01 22:17:16,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:16,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318315541] [2023-04-01 22:17:16,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318315541] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:16,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [434593266] [2023-04-01 22:17:16,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:16,534 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:16,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:16,535 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:17:16,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-04-01 22:17:16,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:16,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:17:16,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:16,732 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-04-01 22:17:16,732 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:17:16,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [434593266] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:17:16,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:17:16,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-04-01 22:17:16,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276329402] [2023-04-01 22:17:16,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:17:16,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 22:17:16,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:16,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 22:17:16,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 22:17:16,734 INFO L87 Difference]: Start difference. First operand 9557 states and 12198 transitions. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 22:17:17,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:17,403 INFO L93 Difference]: Finished difference Result 18920 states and 24181 transitions. [2023-04-01 22:17:17,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 22:17:17,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 267 [2023-04-01 22:17:17,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:17,435 INFO L225 Difference]: With dead ends: 18920 [2023-04-01 22:17:17,435 INFO L226 Difference]: Without dead ends: 9557 [2023-04-01 22:17:17,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-04-01 22:17:17,455 INFO L413 NwaCegarLoop]: 295 mSDtfsCounter, 180 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 549 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 549 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:17,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 323 Invalid, 597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 549 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 22:17:17,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9557 states. [2023-04-01 22:17:17,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9557 to 9557. [2023-04-01 22:17:17,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9557 states, 9317 states have (on average 1.1549855103574111) internal successors, (10761), 9455 states have internal predecessors, (10761), 51 states have call successors, (51), 51 states have call predecessors, (51), 188 states have return successors, (1044), 50 states have call predecessors, (1044), 50 states have call successors, (1044) [2023-04-01 22:17:17,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9557 states to 9557 states and 11856 transitions. [2023-04-01 22:17:17,731 INFO L78 Accepts]: Start accepts. Automaton has 9557 states and 11856 transitions. Word has length 267 [2023-04-01 22:17:17,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:17,732 INFO L495 AbstractCegarLoop]: Abstraction has 9557 states and 11856 transitions. [2023-04-01 22:17:17,732 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 22:17:17,732 INFO L276 IsEmpty]: Start isEmpty. Operand 9557 states and 11856 transitions. [2023-04-01 22:17:17,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2023-04-01 22:17:17,742 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:17,743 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:17,755 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:17,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:17,950 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:17,951 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:17,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1174549289, now seen corresponding path program 1 times [2023-04-01 22:17:17,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:17,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011123991] [2023-04-01 22:17:17,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:17,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:18,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:18,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:18,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:18,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2023-04-01 22:17:18,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:18,640 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 178 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 22:17:18,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:18,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011123991] [2023-04-01 22:17:18,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011123991] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:18,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643301068] [2023-04-01 22:17:18,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:18,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:18,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:18,642 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:17:18,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-04-01 22:17:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:18,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 22:17:18,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:19,162 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 126 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-04-01 22:17:19,162 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:17:19,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643301068] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:17:19,162 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:17:19,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2023-04-01 22:17:19,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680643411] [2023-04-01 22:17:19,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:17:19,163 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 22:17:19,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:19,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 22:17:19,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-04-01 22:17:19,164 INFO L87 Difference]: Start difference. First operand 9557 states and 11856 transitions. Second operand has 5 states, 5 states have (on average 47.8) internal successors, (239), 4 states have internal predecessors, (239), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 22:17:20,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:20,169 INFO L93 Difference]: Finished difference Result 18987 states and 23649 transitions. [2023-04-01 22:17:20,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 22:17:20,171 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 4 states have internal predecessors, (239), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 300 [2023-04-01 22:17:20,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:20,200 INFO L225 Difference]: With dead ends: 18987 [2023-04-01 22:17:20,200 INFO L226 Difference]: Without dead ends: 9624 [2023-04-01 22:17:20,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 302 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2023-04-01 22:17:20,221 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 491 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 1001 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 491 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 1001 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:20,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [491 Valid, 121 Invalid, 1102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 1001 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-04-01 22:17:20,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9624 states. [2023-04-01 22:17:20,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9624 to 9591. [2023-04-01 22:17:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9591 states, 9334 states have (on average 1.1527748017998714) internal successors, (10760), 9489 states have internal predecessors, (10760), 51 states have call successors, (51), 51 states have call predecessors, (51), 205 states have return successors, (1083), 50 states have call predecessors, (1083), 50 states have call successors, (1083) [2023-04-01 22:17:20,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9591 states to 9591 states and 11894 transitions. [2023-04-01 22:17:20,478 INFO L78 Accepts]: Start accepts. Automaton has 9591 states and 11894 transitions. Word has length 300 [2023-04-01 22:17:20,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:20,478 INFO L495 AbstractCegarLoop]: Abstraction has 9591 states and 11894 transitions. [2023-04-01 22:17:20,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.8) internal successors, (239), 4 states have internal predecessors, (239), 3 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-04-01 22:17:20,479 INFO L276 IsEmpty]: Start isEmpty. Operand 9591 states and 11894 transitions. [2023-04-01 22:17:20,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2023-04-01 22:17:20,491 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:20,491 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:20,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:20,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:20,698 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:20,699 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:20,699 INFO L85 PathProgramCache]: Analyzing trace with hash 1797295928, now seen corresponding path program 1 times [2023-04-01 22:17:20,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:20,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063626218] [2023-04-01 22:17:20,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:20,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:21,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:21,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:21,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:21,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-04-01 22:17:21,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:21,870 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 221 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 22:17:21,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:21,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063626218] [2023-04-01 22:17:21,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063626218] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:21,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277979586] [2023-04-01 22:17:21,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:21,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:21,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:21,872 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:17:21,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-04-01 22:17:22,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:22,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 17 conjunts are in the unsatisfiable core [2023-04-01 22:17:22,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:26,333 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 222 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:26,333 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:17:29,324 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 222 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:29,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277979586] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:17:29,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:17:29,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 19 [2023-04-01 22:17:29,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92515290] [2023-04-01 22:17:29,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:17:29,328 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-04-01 22:17:29,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:29,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-04-01 22:17:29,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2023-04-01 22:17:29,330 INFO L87 Difference]: Start difference. First operand 9591 states and 11894 transitions. Second operand has 19 states, 19 states have (on average 41.1578947368421) internal successors, (782), 17 states have internal predecessors, (782), 7 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-04-01 22:17:34,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:34,178 INFO L93 Difference]: Finished difference Result 19672 states and 24602 transitions. [2023-04-01 22:17:34,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-04-01 22:17:34,179 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 41.1578947368421) internal successors, (782), 17 states have internal predecessors, (782), 7 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 343 [2023-04-01 22:17:34,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:34,203 INFO L225 Difference]: With dead ends: 19672 [2023-04-01 22:17:34,203 INFO L226 Difference]: Without dead ends: 10275 [2023-04-01 22:17:34,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 688 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 864 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=716, Invalid=2476, Unknown=0, NotChecked=0, Total=3192 [2023-04-01 22:17:34,220 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 3113 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 4227 mSolverCounterSat, 605 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3117 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 4832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 4227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:34,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3117 Valid, 261 Invalid, 4832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [605 Valid, 4227 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2023-04-01 22:17:34,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10275 states. [2023-04-01 22:17:34,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10275 to 10237. [2023-04-01 22:17:34,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10237 states, 9933 states have (on average 1.1346018322762508) internal successors, (11270), 10129 states have internal predecessors, (11270), 54 states have call successors, (54), 54 states have call predecessors, (54), 249 states have return successors, (1110), 53 states have call predecessors, (1110), 53 states have call successors, (1110) [2023-04-01 22:17:34,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10237 states to 10237 states and 12434 transitions. [2023-04-01 22:17:34,492 INFO L78 Accepts]: Start accepts. Automaton has 10237 states and 12434 transitions. Word has length 343 [2023-04-01 22:17:34,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:34,493 INFO L495 AbstractCegarLoop]: Abstraction has 10237 states and 12434 transitions. [2023-04-01 22:17:34,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 41.1578947368421) internal successors, (782), 17 states have internal predecessors, (782), 7 states have call successors, (11), 8 states have call predecessors, (11), 8 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2023-04-01 22:17:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 10237 states and 12434 transitions. [2023-04-01 22:17:34,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 372 [2023-04-01 22:17:34,505 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:34,505 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:34,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:34,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-04-01 22:17:34,712 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:34,713 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:34,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1109023334, now seen corresponding path program 1 times [2023-04-01 22:17:34,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:34,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494171505] [2023-04-01 22:17:34,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:34,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:34,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:35,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:35,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:35,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:35,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:35,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-01 22:17:35,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:35,382 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 234 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-04-01 22:17:35,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494171505] [2023-04-01 22:17:35,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494171505] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:35,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643819144] [2023-04-01 22:17:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:35,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:35,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:35,384 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:17:35,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-04-01 22:17:35,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:35,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 9 conjunts are in the unsatisfiable core [2023-04-01 22:17:35,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:35,955 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 109 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:35,956 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:17:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 22:17:36,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643819144] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:17:36,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:17:36,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 5] total 13 [2023-04-01 22:17:36,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154208428] [2023-04-01 22:17:36,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:17:36,552 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-04-01 22:17:36,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:36,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-04-01 22:17:36,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2023-04-01 22:17:36,553 INFO L87 Difference]: Start difference. First operand 10237 states and 12434 transitions. Second operand has 13 states, 13 states have (on average 64.84615384615384) internal successors, (843), 11 states have internal predecessors, (843), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 22:17:39,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:39,414 INFO L93 Difference]: Finished difference Result 31513 states and 40821 transitions. [2023-04-01 22:17:39,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-01 22:17:39,415 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 64.84615384615384) internal successors, (843), 11 states have internal predecessors, (843), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) Word has length 371 [2023-04-01 22:17:39,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:39,479 INFO L225 Difference]: With dead ends: 31513 [2023-04-01 22:17:39,479 INFO L226 Difference]: Without dead ends: 21470 [2023-04-01 22:17:39,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 751 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 176 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=240, Invalid=690, Unknown=0, NotChecked=0, Total=930 [2023-04-01 22:17:39,496 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 3077 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1745 mSolverCounterSat, 1024 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3077 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 2769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1024 IncrementalHoareTripleChecker+Valid, 1745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:39,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3077 Valid, 125 Invalid, 2769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1024 Valid, 1745 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-04-01 22:17:39,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21470 states. [2023-04-01 22:17:39,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21470 to 21017. [2023-04-01 22:17:39,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21017 states, 20478 states have (on average 1.1409317316144154) internal successors, (23364), 20797 states have internal predecessors, (23364), 110 states have call successors, (110), 110 states have call predecessors, (110), 428 states have return successors, (2635), 109 states have call predecessors, (2635), 109 states have call successors, (2635) [2023-04-01 22:17:39,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21017 states to 21017 states and 26109 transitions. [2023-04-01 22:17:39,986 INFO L78 Accepts]: Start accepts. Automaton has 21017 states and 26109 transitions. Word has length 371 [2023-04-01 22:17:39,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:39,986 INFO L495 AbstractCegarLoop]: Abstraction has 21017 states and 26109 transitions. [2023-04-01 22:17:39,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 64.84615384615384) internal successors, (843), 11 states have internal predecessors, (843), 5 states have call successors, (11), 8 states have call predecessors, (11), 5 states have return successors, (7), 5 states have call predecessors, (7), 4 states have call successors, (7) [2023-04-01 22:17:39,987 INFO L276 IsEmpty]: Start isEmpty. Operand 21017 states and 26109 transitions. [2023-04-01 22:17:40,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2023-04-01 22:17:40,001 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:40,001 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:40,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:40,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:40,208 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:40,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:40,209 INFO L85 PathProgramCache]: Analyzing trace with hash -137527339, now seen corresponding path program 1 times [2023-04-01 22:17:40,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:40,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245903743] [2023-04-01 22:17:40,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:40,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:40,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:40,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:40,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:40,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-01 22:17:40,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:41,085 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 109 proven. 2 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-04-01 22:17:41,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:41,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245903743] [2023-04-01 22:17:41,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [245903743] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:41,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868956191] [2023-04-01 22:17:41,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:41,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:41,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:41,087 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:17:41,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-04-01 22:17:41,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:41,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 604 conjuncts, 5 conjunts are in the unsatisfiable core [2023-04-01 22:17:41,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 144 trivial. 0 not checked. [2023-04-01 22:17:41,470 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-04-01 22:17:41,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868956191] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 22:17:41,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-04-01 22:17:41,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2023-04-01 22:17:41,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161179166] [2023-04-01 22:17:41,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 22:17:41,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-04-01 22:17:41,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:41,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-04-01 22:17:41,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 22:17:41,473 INFO L87 Difference]: Start difference. First operand 21017 states and 26109 transitions. Second operand has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 22:17:42,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:42,223 INFO L93 Difference]: Finished difference Result 22151 states and 27542 transitions. [2023-04-01 22:17:42,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-04-01 22:17:42,223 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 374 [2023-04-01 22:17:42,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:42,277 INFO L225 Difference]: With dead ends: 22151 [2023-04-01 22:17:42,277 INFO L226 Difference]: Without dead ends: 22149 [2023-04-01 22:17:42,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 22:17:42,287 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 168 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:42,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 141 Invalid, 556 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-04-01 22:17:42,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22149 states. [2023-04-01 22:17:42,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22149 to 22149. [2023-04-01 22:17:42,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22149 states, 21596 states have (on average 1.1410909427671792) internal successors, (24643), 21917 states have internal predecessors, (24643), 116 states have call successors, (116), 116 states have call predecessors, (116), 436 states have return successors, (2781), 115 states have call predecessors, (2781), 115 states have call successors, (2781) [2023-04-01 22:17:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22149 states to 22149 states and 27540 transitions. [2023-04-01 22:17:42,723 INFO L78 Accepts]: Start accepts. Automaton has 22149 states and 27540 transitions. Word has length 374 [2023-04-01 22:17:42,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:42,725 INFO L495 AbstractCegarLoop]: Abstraction has 22149 states and 27540 transitions. [2023-04-01 22:17:42,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.66666666666667) internal successors, (224), 3 states have internal predecessors, (224), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2023-04-01 22:17:42,725 INFO L276 IsEmpty]: Start isEmpty. Operand 22149 states and 27540 transitions. [2023-04-01 22:17:42,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 510 [2023-04-01 22:17:42,759 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:42,759 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:42,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:42,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-04-01 22:17:42,976 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:42,976 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:42,977 INFO L85 PathProgramCache]: Analyzing trace with hash 2133169988, now seen corresponding path program 1 times [2023-04-01 22:17:42,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:42,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785648082] [2023-04-01 22:17:42,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:42,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:43,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:43,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:43,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:43,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-01 22:17:43,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:43,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-04-01 22:17:43,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 426 proven. 4 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2023-04-01 22:17:44,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:44,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785648082] [2023-04-01 22:17:44,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785648082] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:44,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763438062] [2023-04-01 22:17:44,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:44,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:44,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:44,081 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:17:44,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-04-01 22:17:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:44,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 16 conjunts are in the unsatisfiable core [2023-04-01 22:17:44,273 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:45,895 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 430 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-04-01 22:17:45,895 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:17:47,048 INFO L134 CoverageAnalysis]: Checked inductivity of 558 backedges. 430 proven. 2 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2023-04-01 22:17:47,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763438062] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:17:47,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:17:47,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7, 8] total 16 [2023-04-01 22:17:47,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734915175] [2023-04-01 22:17:47,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:17:47,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-04-01 22:17:47,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:47,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-04-01 22:17:47,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2023-04-01 22:17:47,051 INFO L87 Difference]: Start difference. First operand 22149 states and 27540 transitions. Second operand has 16 states, 16 states have (on average 54.0625) internal successors, (865), 14 states have internal predecessors, (865), 5 states have call successors, (10), 7 states have call predecessors, (10), 8 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-04-01 22:17:50,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:17:50,067 INFO L93 Difference]: Finished difference Result 47634 states and 59387 transitions. [2023-04-01 22:17:50,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-04-01 22:17:50,068 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 54.0625) internal successors, (865), 14 states have internal predecessors, (865), 5 states have call successors, (10), 7 states have call predecessors, (10), 8 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 509 [2023-04-01 22:17:50,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:17:50,146 INFO L225 Difference]: With dead ends: 47634 [2023-04-01 22:17:50,146 INFO L226 Difference]: Without dead ends: 25869 [2023-04-01 22:17:50,181 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 1035 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=308, Invalid=882, Unknown=0, NotChecked=0, Total=1190 [2023-04-01 22:17:50,182 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 1161 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 3229 mSolverCounterSat, 501 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1166 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 3730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 501 IncrementalHoareTripleChecker+Valid, 3229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2023-04-01 22:17:50,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1166 Valid, 219 Invalid, 3730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [501 Valid, 3229 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2023-04-01 22:17:50,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25869 states. [2023-04-01 22:17:50,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25869 to 25827. [2023-04-01 22:17:50,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25827 states, 25186 states have (on average 1.1336059715715079) internal successors, (28551), 25557 states have internal predecessors, (28551), 135 states have call successors, (135), 135 states have call predecessors, (135), 505 states have return successors, (3162), 134 states have call predecessors, (3162), 134 states have call successors, (3162) [2023-04-01 22:17:50,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25827 states to 25827 states and 31848 transitions. [2023-04-01 22:17:50,775 INFO L78 Accepts]: Start accepts. Automaton has 25827 states and 31848 transitions. Word has length 509 [2023-04-01 22:17:50,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:17:50,776 INFO L495 AbstractCegarLoop]: Abstraction has 25827 states and 31848 transitions. [2023-04-01 22:17:50,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 54.0625) internal successors, (865), 14 states have internal predecessors, (865), 5 states have call successors, (10), 7 states have call predecessors, (10), 8 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2023-04-01 22:17:50,776 INFO L276 IsEmpty]: Start isEmpty. Operand 25827 states and 31848 transitions. [2023-04-01 22:17:50,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 759 [2023-04-01 22:17:50,827 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:17:50,828 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:17:50,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-04-01 22:17:51,034 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-04-01 22:17:51,034 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:17:51,035 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:17:51,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1497280826, now seen corresponding path program 1 times [2023-04-01 22:17:51,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:17:51,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157970823] [2023-04-01 22:17:51,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:51,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:17:51,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:51,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:17:51,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:51,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:17:51,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:51,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2023-04-01 22:17:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2023-04-01 22:17:51,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:51,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2023-04-01 22:17:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:51,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 526 [2023-04-01 22:17:51,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 583 proven. 99 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2023-04-01 22:17:51,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:17:51,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157970823] [2023-04-01 22:17:51,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157970823] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:17:51,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [561061161] [2023-04-01 22:17:51,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:17:51,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:17:51,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:17:51,786 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:17:51,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-04-01 22:17:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:17:52,007 INFO L262 TraceCheckSpWp]: Trace formula consists of 1110 conjuncts, 11 conjunts are in the unsatisfiable core [2023-04-01 22:17:52,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:17:52,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 889 proven. 2 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2023-04-01 22:17:52,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:17:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1488 backedges. 297 proven. 953 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2023-04-01 22:17:53,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [561061161] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:17:53,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:17:53,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 8] total 18 [2023-04-01 22:17:53,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407016299] [2023-04-01 22:17:53,606 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:17:53,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-04-01 22:17:53,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:17:53,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-04-01 22:17:53,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2023-04-01 22:17:53,610 INFO L87 Difference]: Start difference. First operand 25827 states and 31848 transitions. Second operand has 18 states, 18 states have (on average 50.5) internal successors, (909), 16 states have internal predecessors, (909), 7 states have call successors, (14), 9 states have call predecessors, (14), 12 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-04-01 22:18:01,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:18:01,396 INFO L93 Difference]: Finished difference Result 68356 states and 84532 transitions. [2023-04-01 22:18:01,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2023-04-01 22:18:01,396 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 50.5) internal successors, (909), 16 states have internal predecessors, (909), 7 states have call successors, (14), 9 states have call predecessors, (14), 12 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) Word has length 758 [2023-04-01 22:18:01,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:18:01,479 INFO L225 Difference]: With dead ends: 68356 [2023-04-01 22:18:01,479 INFO L226 Difference]: Without dead ends: 41137 [2023-04-01 22:18:01,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1658 GetRequests, 1575 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2342 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1152, Invalid=5988, Unknown=0, NotChecked=0, Total=7140 [2023-04-01 22:18:01,503 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 3373 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 10727 mSolverCounterSat, 941 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3377 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 11668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 941 IncrementalHoareTripleChecker+Valid, 10727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2023-04-01 22:18:01,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3377 Valid, 466 Invalid, 11668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [941 Valid, 10727 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2023-04-01 22:18:01,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41137 states. [2023-04-01 22:18:02,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41137 to 38363. [2023-04-01 22:18:02,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38363 states, 37451 states have (on average 1.1211449627513284) internal successors, (41988), 37963 states have internal predecessors, (41988), 200 states have call successors, (200), 200 states have call predecessors, (200), 711 states have return successors, (4081), 199 states have call predecessors, (4081), 199 states have call successors, (4081) [2023-04-01 22:18:02,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38363 states to 38363 states and 46269 transitions. [2023-04-01 22:18:02,180 INFO L78 Accepts]: Start accepts. Automaton has 38363 states and 46269 transitions. Word has length 758 [2023-04-01 22:18:02,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:18:02,181 INFO L495 AbstractCegarLoop]: Abstraction has 38363 states and 46269 transitions. [2023-04-01 22:18:02,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 50.5) internal successors, (909), 16 states have internal predecessors, (909), 7 states have call successors, (14), 9 states have call predecessors, (14), 12 states have return successors, (14), 7 states have call predecessors, (14), 7 states have call successors, (14) [2023-04-01 22:18:02,181 INFO L276 IsEmpty]: Start isEmpty. Operand 38363 states and 46269 transitions. [2023-04-01 22:18:02,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 955 [2023-04-01 22:18:02,426 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:18:02,426 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:18:02,437 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-04-01 22:18:02,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-04-01 22:18:02,637 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:18:02,637 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:18:02,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1033550595, now seen corresponding path program 1 times [2023-04-01 22:18:02,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:18:02,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267423323] [2023-04-01 22:18:02,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:18:02,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:18:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:18:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:18:03,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-01 22:18:03,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-04-01 22:18:03,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-04-01 22:18:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 483 [2023-04-01 22:18:03,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 620 [2023-04-01 22:18:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 722 [2023-04-01 22:18:03,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,693 INFO L134 CoverageAnalysis]: Checked inductivity of 2669 backedges. 673 proven. 251 refuted. 0 times theorem prover too weak. 1745 trivial. 0 not checked. [2023-04-01 22:18:03,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:18:03,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267423323] [2023-04-01 22:18:03,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267423323] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:18:03,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731568304] [2023-04-01 22:18:03,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:18:03,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:18:03,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:18:03,696 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:18:03,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-04-01 22:18:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:03,977 INFO L262 TraceCheckSpWp]: Trace formula consists of 1388 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:18:03,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:18:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 2669 backedges. 1804 proven. 2 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2023-04-01 22:18:04,094 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:18:04,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2669 backedges. 676 proven. 254 refuted. 0 times theorem prover too weak. 1739 trivial. 0 not checked. [2023-04-01 22:18:04,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731568304] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:18:04,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:18:04,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 9 [2023-04-01 22:18:04,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243944941] [2023-04-01 22:18:04,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:18:04,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-01 22:18:04,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:18:04,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-01 22:18:04,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-01 22:18:04,328 INFO L87 Difference]: Start difference. First operand 38363 states and 46269 transitions. Second operand has 9 states, 9 states have (on average 69.22222222222223) internal successors, (623), 7 states have internal predecessors, (623), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 22:18:05,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:18:05,936 INFO L93 Difference]: Finished difference Result 79992 states and 96503 transitions. [2023-04-01 22:18:05,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-01 22:18:05,936 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 69.22222222222223) internal successors, (623), 7 states have internal predecessors, (623), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 954 [2023-04-01 22:18:05,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:18:06,052 INFO L225 Difference]: With dead ends: 79992 [2023-04-01 22:18:06,053 INFO L226 Difference]: Without dead ends: 42013 [2023-04-01 22:18:06,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1942 GetRequests, 1926 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-04-01 22:18:06,109 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 699 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 1515 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 1515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-04-01 22:18:06,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 121 Invalid, 1661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 1515 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-04-01 22:18:06,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42013 states. [2023-04-01 22:18:06,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42013 to 39687. [2023-04-01 22:18:06,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39687 states, 38757 states have (on average 1.1147147612044277) internal successors, (43203), 39273 states have internal predecessors, (43203), 207 states have call successors, (207), 207 states have call predecessors, (207), 722 states have return successors, (4070), 206 states have call predecessors, (4070), 206 states have call successors, (4070) [2023-04-01 22:18:06,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39687 states to 39687 states and 47480 transitions. [2023-04-01 22:18:06,901 INFO L78 Accepts]: Start accepts. Automaton has 39687 states and 47480 transitions. Word has length 954 [2023-04-01 22:18:06,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:18:06,902 INFO L495 AbstractCegarLoop]: Abstraction has 39687 states and 47480 transitions. [2023-04-01 22:18:06,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 69.22222222222223) internal successors, (623), 7 states have internal predecessors, (623), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 22:18:06,902 INFO L276 IsEmpty]: Start isEmpty. Operand 39687 states and 47480 transitions. [2023-04-01 22:18:06,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1024 [2023-04-01 22:18:06,972 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:18:06,973 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:18:06,981 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-04-01 22:18:07,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-04-01 22:18:07,181 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:18:07,182 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:18:07,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1259909754, now seen corresponding path program 1 times [2023-04-01 22:18:07,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:18:07,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192875757] [2023-04-01 22:18:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:18:07,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:18:07,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:18:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:18:08,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-01 22:18:08,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-04-01 22:18:08,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-04-01 22:18:08,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2023-04-01 22:18:08,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 689 [2023-04-01 22:18:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 791 [2023-04-01 22:18:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,480 INFO L134 CoverageAnalysis]: Checked inductivity of 2930 backedges. 802 proven. 383 refuted. 0 times theorem prover too weak. 1745 trivial. 0 not checked. [2023-04-01 22:18:08,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:18:08,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192875757] [2023-04-01 22:18:08,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [192875757] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:18:08,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142549221] [2023-04-01 22:18:08,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:18:08,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:18:08,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:18:08,483 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:18:08,486 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-04-01 22:18:08,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:08,825 INFO L262 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 22:18:08,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:18:09,001 INFO L134 CoverageAnalysis]: Checked inductivity of 2930 backedges. 2065 proven. 2 refuted. 0 times theorem prover too weak. 863 trivial. 0 not checked. [2023-04-01 22:18:09,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:18:09,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2930 backedges. 805 proven. 386 refuted. 0 times theorem prover too weak. 1739 trivial. 0 not checked. [2023-04-01 22:18:09,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142549221] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:18:09,373 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:18:09,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 9 [2023-04-01 22:18:09,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492527577] [2023-04-01 22:18:09,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:18:09,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-04-01 22:18:09,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:18:09,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-04-01 22:18:09,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2023-04-01 22:18:09,377 INFO L87 Difference]: Start difference. First operand 39687 states and 47480 transitions. Second operand has 9 states, 9 states have (on average 92.22222222222223) internal successors, (830), 7 states have internal predecessors, (830), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 22:18:11,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:18:11,266 INFO L93 Difference]: Finished difference Result 73781 states and 88218 transitions. [2023-04-01 22:18:11,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-04-01 22:18:11,266 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 92.22222222222223) internal successors, (830), 7 states have internal predecessors, (830), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 1023 [2023-04-01 22:18:11,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:18:11,324 INFO L225 Difference]: With dead ends: 73781 [2023-04-01 22:18:11,324 INFO L226 Difference]: Without dead ends: 34478 [2023-04-01 22:18:11,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2080 GetRequests, 2062 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-04-01 22:18:11,347 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 948 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 2131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2023-04-01 22:18:11,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 124 Invalid, 2131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2023-04-01 22:18:11,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34478 states. [2023-04-01 22:18:11,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34478 to 34225. [2023-04-01 22:18:11,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34225 states, 33443 states have (on average 1.0973895882546423) internal successors, (36700), 33867 states have internal predecessors, (36700), 179 states have call successors, (179), 179 states have call predecessors, (179), 602 states have return successors, (2953), 178 states have call predecessors, (2953), 178 states have call successors, (2953) [2023-04-01 22:18:11,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34225 states to 34225 states and 39832 transitions. [2023-04-01 22:18:11,943 INFO L78 Accepts]: Start accepts. Automaton has 34225 states and 39832 transitions. Word has length 1023 [2023-04-01 22:18:11,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:18:11,944 INFO L495 AbstractCegarLoop]: Abstraction has 34225 states and 39832 transitions. [2023-04-01 22:18:11,944 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 92.22222222222223) internal successors, (830), 7 states have internal predecessors, (830), 3 states have call successors, (11), 6 states have call predecessors, (11), 4 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2023-04-01 22:18:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 34225 states and 39832 transitions. [2023-04-01 22:18:11,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1175 [2023-04-01 22:18:11,986 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 22:18:11,987 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:18:12,000 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-04-01 22:18:12,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:18:12,194 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 22:18:12,195 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 22:18:12,195 INFO L85 PathProgramCache]: Analyzing trace with hash -548783567, now seen corresponding path program 1 times [2023-04-01 22:18:12,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 22:18:12,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1372958236] [2023-04-01 22:18:12,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:18:12,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 22:18:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:13,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 22:18:13,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:13,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-04-01 22:18:13,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:13,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2023-04-01 22:18:13,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:14,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-04-01 22:18:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:14,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2023-04-01 22:18:14,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:14,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2023-04-01 22:18:14,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:14,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 617 [2023-04-01 22:18:14,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:14,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 703 [2023-04-01 22:18:14,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:14,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 840 [2023-04-01 22:18:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:14,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 942 [2023-04-01 22:18:14,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:14,346 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 774 proven. 1397 refuted. 0 times theorem prover too weak. 2160 trivial. 0 not checked. [2023-04-01 22:18:14,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 22:18:14,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1372958236] [2023-04-01 22:18:14,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1372958236] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 22:18:14,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714576293] [2023-04-01 22:18:14,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 22:18:14,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 22:18:14,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 22:18:14,348 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-04-01 22:18:14,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-04-01 22:18:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 22:18:14,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 1686 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-01 22:18:14,656 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 22:18:14,787 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 2660 proven. 2 refuted. 0 times theorem prover too weak. 1669 trivial. 0 not checked. [2023-04-01 22:18:14,787 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 22:18:15,440 INFO L134 CoverageAnalysis]: Checked inductivity of 4331 backedges. 832 proven. 454 refuted. 0 times theorem prover too weak. 3045 trivial. 0 not checked. [2023-04-01 22:18:15,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714576293] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 22:18:15,440 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 22:18:15,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 17 [2023-04-01 22:18:15,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488315678] [2023-04-01 22:18:15,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 22:18:15,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-01 22:18:15,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 22:18:15,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-01 22:18:15,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2023-04-01 22:18:15,444 INFO L87 Difference]: Start difference. First operand 34225 states and 39832 transitions. Second operand has 17 states, 17 states have (on average 43.8235294117647) internal successors, (745), 15 states have internal predecessors, (745), 7 states have call successors, (13), 7 states have call predecessors, (13), 9 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-04-01 22:18:21,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 22:18:21,426 INFO L93 Difference]: Finished difference Result 60709 states and 70933 transitions. [2023-04-01 22:18:21,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2023-04-01 22:18:21,426 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 43.8235294117647) internal successors, (745), 15 states have internal predecessors, (745), 7 states have call successors, (13), 7 states have call predecessors, (13), 9 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) Word has length 1174 [2023-04-01 22:18:21,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 22:18:21,427 INFO L225 Difference]: With dead ends: 60709 [2023-04-01 22:18:21,427 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 22:18:21,473 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2490 GetRequests, 2410 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1995 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=1070, Invalid=5572, Unknown=0, NotChecked=0, Total=6642 [2023-04-01 22:18:21,474 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 3624 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 6105 mSolverCounterSat, 647 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3624 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 6752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 6105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-04-01 22:18:21,474 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3624 Valid, 364 Invalid, 6752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 6105 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-04-01 22:18:21,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 22:18:21,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 22:18:21,474 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) [2023-04-01 22:18:21,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 22:18:21,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1174 [2023-04-01 22:18:21,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 22:18:21,475 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 22:18:21,475 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 43.8235294117647) internal successors, (745), 15 states have internal predecessors, (745), 7 states have call successors, (13), 7 states have call predecessors, (13), 9 states have return successors, (12), 7 states have call predecessors, (12), 7 states have call successors, (12) [2023-04-01 22:18:21,475 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 22:18:21,475 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 22:18:21,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 22:18:21,483 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-04-01 22:18:21,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-04-01 22:18:21,680 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 22:18:29,909 WARN L223 SmtUtils]: Spent 8.22s on a formula simplification. DAG size of input: 521 DAG size of output: 449 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-01 22:18:38,673 WARN L223 SmtUtils]: Spent 7.69s on a formula simplification. DAG size of input: 521 DAG size of output: 449 (called from [L 182] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.or) [2023-04-01 22:18:45,231 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 12) no Hoare annotation was computed. [2023-04-01 22:18:45,231 INFO L899 garLoopResultBuilder]: For program point reach_errorFINAL(line 12) no Hoare annotation was computed. [2023-04-01 22:18:45,231 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 12) no Hoare annotation was computed. [2023-04-01 22:18:45,231 INFO L895 garLoopResultBuilder]: At program point L1052(line 1052) the Hoare annotation is: (let ((.cse14 (= ~a25~0 13)) (.cse17 (= ~a25~0 12))) (let ((.cse0 (= ~a25~0 9)) (.cse6 (<= ~a25~0 11)) (.cse9 (<= 10250 ~a29~0)) (.cse3 (<= 307 ~a23~0)) (.cse16 (< (+ ~a23~0 42) 0)) (.cse12 (<= ~a29~0 277)) (.cse13 (<= 141 ~a29~0)) (.cse15 (<= 160 ~a23~0)) (.cse11 (or .cse14 .cse17)) (.cse10 (< ~a23~0 600030)) (.cse1 (= ~a4~0 1)) (.cse2 (<= ~a23~0 312)) (.cse4 (= ~a25~0 10)) (.cse5 (<= (+ ~a23~0 43) 0)) (.cse7 (<= ~a4~0 0)) (.cse8 (<= ~a29~0 130))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2 .cse4) (and .cse5 .cse6 .cse7 .cse8) (and .cse5 .cse0 .cse9 .cse7) (and .cse3 .cse1 .cse10 .cse11 (<= 13 ~a25~0)) (not (= 10 |old(~a25~0)|)) (and .cse6 .cse9 .cse1 .cse2) (< |old(~a23~0)| 312) (and .cse6 .cse12 .cse13 .cse1 .cse2) (and .cse14 .cse9 .cse1 .cse2 .cse15) (and .cse16 .cse1 .cse4) (not (= ~a3~0 1)) (< 312 |old(~a23~0)|) (and .cse3 .cse13 .cse1 .cse10) (and .cse17 .cse16 .cse12 .cse13 .cse7) (and .cse14 (<= ~a29~0 245) .cse13 .cse1 .cse10) (and .cse17 .cse1 .cse2 .cse15) (and .cse1 (<= ~a23~0 |old(~a23~0)|) .cse15 .cse11 .cse8) (and .cse1 (<= 312 ~a23~0) .cse10 .cse4) (and .cse1 .cse2 .cse4 .cse8) (not (= |old(~a4~0)| 1)) (not (= ~a8~0 15)) (and .cse5 .cse17 .cse7 .cse8) (< |old(~a29~0)| 130) (< 130 |old(~a29~0)|)))) [2023-04-01 22:18:45,232 INFO L899 garLoopResultBuilder]: For program point L1052-1(line 1052) no Hoare annotation was computed. [2023-04-01 22:18:45,232 INFO L899 garLoopResultBuilder]: For program point L1049(line 1049) no Hoare annotation was computed. [2023-04-01 22:18:45,232 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 1038 1054) no Hoare annotation was computed. [2023-04-01 22:18:45,232 INFO L895 garLoopResultBuilder]: At program point L1044-2(lines 1044 1053) the Hoare annotation is: (let ((.cse14 (= ~a25~0 13)) (.cse17 (= ~a25~0 12))) (let ((.cse0 (= ~a25~0 9)) (.cse6 (<= ~a25~0 11)) (.cse9 (<= 10250 ~a29~0)) (.cse3 (<= 307 ~a23~0)) (.cse16 (< (+ ~a23~0 42) 0)) (.cse12 (<= ~a29~0 277)) (.cse13 (<= 141 ~a29~0)) (.cse15 (<= 160 ~a23~0)) (.cse11 (or .cse14 .cse17)) (.cse10 (< ~a23~0 600030)) (.cse1 (= ~a4~0 1)) (.cse2 (<= ~a23~0 312)) (.cse4 (= ~a25~0 10)) (.cse5 (<= (+ ~a23~0 43) 0)) (.cse7 (<= ~a4~0 0)) (.cse8 (<= ~a29~0 130))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse1 .cse2 .cse4) (and .cse5 .cse6 .cse7 .cse8) (and .cse5 .cse0 .cse9 .cse7) (and .cse3 .cse1 .cse10 .cse11 (<= 13 ~a25~0)) (not (= 10 |old(~a25~0)|)) (and .cse6 .cse9 .cse1 .cse2) (< |old(~a23~0)| 312) (and .cse6 .cse12 .cse13 .cse1 .cse2) (and .cse14 .cse9 .cse1 .cse2 .cse15) (and .cse16 .cse1 .cse4) (not (= ~a3~0 1)) (< 312 |old(~a23~0)|) (and .cse3 .cse13 .cse1 .cse10) (and .cse17 .cse16 .cse12 .cse13 .cse7) (and .cse14 (<= ~a29~0 245) .cse13 .cse1 .cse10) (and .cse17 .cse1 .cse2 .cse15) (and .cse1 (<= ~a23~0 |old(~a23~0)|) .cse15 .cse11 .cse8) (and .cse1 (<= 312 ~a23~0) .cse10 .cse4) (and .cse1 .cse2 .cse4 .cse8) (not (= |old(~a4~0)| 1)) (not (= ~a8~0 15)) (and .cse5 .cse17 .cse7 .cse8) (< |old(~a29~0)| 130) (< 130 |old(~a29~0)|)))) [2023-04-01 22:18:45,232 INFO L899 garLoopResultBuilder]: For program point L1044-3(lines 1038 1054) no Hoare annotation was computed. [2023-04-01 22:18:45,232 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 1038 1054) the Hoare annotation is: (or (not (= 10 |old(~a25~0)|)) (< |old(~a23~0)| 312) (not (= ~a3~0 1)) (and (= ~a4~0 1) (<= ~a23~0 312) (<= 312 ~a23~0) (= ~a25~0 10) (<= 130 ~a29~0) (<= ~a29~0 130)) (< 312 |old(~a23~0)|) (not (= |old(~a4~0)| 1)) (not (= ~a8~0 15)) (< |old(~a29~0)| 130) (< 130 |old(~a29~0)|)) [2023-04-01 22:18:45,232 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2023-04-01 22:18:45,232 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= ~a3~0 |old(~a3~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~a29~0 |old(~a29~0)|) (= ~a23~0 |old(~a23~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a8~0 |old(~a8~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a4~0 |old(~a4~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~inputF~0 |old(~inputF~0)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-04-01 22:18:45,232 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 22:18:45,232 INFO L899 garLoopResultBuilder]: For program point L498(lines 498 509) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L432(lines 432 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L498-2(lines 498 509) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L168-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L102-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L1027(lines 1027 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L631(lines 631 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L565(lines 565 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L103(line 103) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L37(line 37) no Hoare annotation was computed. [2023-04-01 22:18:45,233 INFO L899 garLoopResultBuilder]: For program point L896(lines 896 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L698(lines 698 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L368(lines 368 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L963(lines 963 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L237(lines 237 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L171-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L105-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L39-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L832(lines 832 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L304(lines 304 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L172(line 172) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L106(line 106) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L40(line 40) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L767(lines 767 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,234 INFO L899 garLoopResultBuilder]: For program point L768(lines 768 778) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L768-2(lines 768 778) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L174-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L108-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L42-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L571(lines 571 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L439(lines 439 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L109(line 109) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L43(line 43) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L968(lines 968 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L704(lines 704 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L638(lines 638 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,235 INFO L899 garLoopResultBuilder]: For program point L903(lines 903 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,236 INFO L899 garLoopResultBuilder]: For program point L705(lines 705 715) no Hoare annotation was computed. [2023-04-01 22:18:45,236 INFO L899 garLoopResultBuilder]: For program point L705-2(lines 705 715) no Hoare annotation was computed. [2023-04-01 22:18:45,236 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,236 INFO L899 garLoopResultBuilder]: For program point L309(lines 309 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,236 INFO L899 garLoopResultBuilder]: For program point L243(lines 243 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,236 INFO L899 garLoopResultBuilder]: For program point L177-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,236 INFO L899 garLoopResultBuilder]: For program point L111-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,236 INFO L899 garLoopResultBuilder]: For program point L45-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,236 INFO L899 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L112(line 112) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L510(lines 510 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L180-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L48-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L973(lines 973 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L841(lines 841 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L181(line 181) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L115(line 115) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L908(lines 908 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L645(lines 645 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L315(lines 315 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L117-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L51-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point calculate_outputEXIT(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,237 INFO L899 garLoopResultBuilder]: For program point L250(lines 250 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L118(line 118) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L52(line 52) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L779(lines 779 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L846(lines 846 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L582(lines 582 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L120-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L54-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L979(lines 979 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L913(lines 913 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L517(lines 517 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L121(line 121) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L55(line 55) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L980(lines 980 990) no Hoare annotation was computed. [2023-04-01 22:18:45,238 INFO L899 garLoopResultBuilder]: For program point L914(lines 914 924) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L980-2(lines 980 990) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L914-2(lines 914 924) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L320(lines 320 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L585(lines 585 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L453(lines 453 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L387(lines 387 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L189-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L123-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L57-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L784(lines 784 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L652(lines 652 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L190(line 190) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L124(line 124) no Hoare annotation was computed. [2023-04-01 22:18:45,239 INFO L899 garLoopResultBuilder]: For program point L58(line 58) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L851(lines 851 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L257(lines 257 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L192-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L126-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L60-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L193(line 193) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L127(line 127) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L61(line 61) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L722(lines 722 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L657(lines 657 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L591(lines 591 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L525(lines 525 535) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L525-2(lines 525 535) no Hoare annotation was computed. [2023-04-01 22:18:45,240 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L195-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L129-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L63-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L856(lines 856 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L790(lines 790 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 667) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L658-2(lines 658 667) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L460(lines 460 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L394(lines 394 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L130(line 130) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L64(line 64) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L198-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,241 INFO L899 garLoopResultBuilder]: For program point L132-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L66-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L991(lines 991 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L925(lines 925 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L727(lines 727 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L133(line 133) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L67(line 67) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L926(lines 926 936) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L926-2(lines 926 936) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L728(lines 728 740) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L728-2(lines 728 740) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L596(lines 596 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 607) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L597-2(lines 597 607) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L201-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,242 INFO L899 garLoopResultBuilder]: For program point L135-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L862(lines 862 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L466(lines 466 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L202(line 202) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L136(line 136) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L70(line 70) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L797(lines 797 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L401(lines 401 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L204-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L138-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L72-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L205(line 205) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L139(line 139) no Hoare annotation was computed. [2023-04-01 22:18:45,243 INFO L899 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L998(lines 998 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 181) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L207-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L141-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L802(lines 802 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L208(line 208) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L142(line 142) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L76(line 76) no Hoare annotation was computed. [2023-04-01 22:18:45,244 INFO L899 garLoopResultBuilder]: For program point L869(lines 869 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L473(lines 473 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L210-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L144-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L78-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L1003(lines 1003 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L937(lines 937 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L673(lines 673 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L541(lines 541 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L409(lines 409 420) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L409-2(lines 409 420) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L211(line 211) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L79(line 79) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L608(lines 608 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,245 INFO L899 garLoopResultBuilder]: For program point L741(lines 741 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L147-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L81-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L214(line 214) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L875(lines 875 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L942(lines 942 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L876(lines 876 885) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L876-2(lines 876 885) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L480(lines 480 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L150-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point calculate_outputFINAL(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L547(lines 547 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L151(line 151) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L85(line 85) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L1010(lines 1010 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L680(lines 680 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,246 INFO L899 garLoopResultBuilder]: For program point L614(lines 614 624) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L614-2(lines 614 624) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L285(lines 285 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L153-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L814(lines 814 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L748(lines 748 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L154(line 154) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L88(line 88) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L815(lines 815 825) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L815-2(lines 815 825) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L552(lines 552 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L156-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L90-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L1015(lines 1015 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L685(lines 685 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L487(lines 487 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,247 INFO L899 garLoopResultBuilder]: For program point L421(lines 421 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L157(line 157) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L91(line 91) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L950(lines 950 962) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L950-2(lines 950 962) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L488(lines 488 496) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L488-2(lines 488 496) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L356(lines 356 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L753(lines 753 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L159-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L93-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,248 INFO L899 garLoopResultBuilder]: For program point L886(lines 886 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,249 INFO L899 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2023-04-01 22:18:45,249 INFO L899 garLoopResultBuilder]: For program point L94(line 94) no Hoare annotation was computed. [2023-04-01 22:18:45,249 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 32 1036) the Hoare annotation is: (let ((.cse26 (= ~a25~0 |old(~a25~0)|)) (.cse29 (= ~a25~0 12)) (.cse27 (= ~a4~0 |old(~a4~0)|)) (.cse10 (not (= 12 |old(~a25~0)|))) (.cse0 (= ~a29~0 |old(~a29~0)|)) (.cse1 (= ~a23~0 |old(~a23~0)|)) (.cse3 (= ~a4~0 1))) (let ((.cse13 (< 130 |old(~a29~0)|)) (.cse2 (= ~a25~0 9)) (.cse6 (not (= 9 |old(~a25~0)|))) (.cse11 (< 0 (+ 43 |old(~a23~0)|))) (.cse23 (< |old(~a23~0)| 160)) (.cse16 (< 11 |old(~a25~0)|)) (.cse28 (< |old(~a29~0)| 10250)) (.cse20 (< |old(~a25~0)| 13)) (.cse21 (and (= ~a25~0 13) .cse0 .cse1 .cse3)) (.cse22 (and (not (= 13 |old(~a25~0)|)) .cse10)) (.cse24 (<= 600030 |old(~a23~0)|)) (.cse9 (and .cse29 .cse0 .cse1 .cse27)) (.cse12 (< 0 |old(~a4~0)|)) (.cse18 (< 277 |old(~a29~0)|)) (.cse5 (< 312 |old(~a23~0)|)) (.cse25 (< |old(~a23~0)| 307)) (.cse17 (< |old(~a29~0)| 141)) (.cse19 (and .cse0 .cse1 .cse3 .cse26)) (.cse14 (not (= 10 |old(~a25~0)|))) (.cse30 (<= 0 (+ 42 |old(~a23~0)|))) (.cse4 (not (= ~a3~0 1))) (.cse15 (and .cse0 .cse1 .cse3 (= ~a25~0 10))) (.cse7 (not (= |old(~a4~0)| 1))) (.cse8 (not (= ~a8~0 15)))) (and (or (and .cse0 .cse1 .cse2 .cse3) .cse4 .cse5 .cse6 .cse7 .cse8) (or .cse9 .cse4 .cse10 .cse11 .cse12 .cse8 .cse13) (or .cse14 .cse4 .cse5 .cse15 .cse7 .cse8 .cse13) (or .cse16 .cse4 .cse5 .cse17 .cse18 .cse7 .cse8 .cse19) (or .cse20 .cse21 .cse22 .cse4 .cse5 .cse23 .cse7 .cse8 .cse13) (or (< |old(~a23~0)| 312) .cse4 .cse17 .cse24 .cse7 .cse8 .cse19) (or .cse20 .cse21 .cse22 .cse4 .cse25 .cse24 .cse7 .cse8) (or .cse16 .cse4 .cse11 .cse12 .cse8 .cse13 (and .cse0 .cse1 .cse26 .cse27)) (or (and .cse0 .cse1 .cse2 .cse27) .cse4 .cse6 .cse11 .cse12 .cse28 .cse8) (or .cse4 .cse10 .cse5 (and .cse29 .cse0 .cse1 .cse3) .cse23 .cse7 .cse8) (or .cse14 .cse4 .cse25 .cse15 .cse24 .cse7 .cse8) (or .cse20 .cse21 .cse22 .cse4 .cse5 .cse28 .cse23 .cse7 .cse8) (or .cse16 .cse4 .cse5 .cse28 .cse7 .cse8 .cse19) (or .cse20 .cse21 .cse22 .cse4 (< 245 |old(~a29~0)|) .cse17 .cse24 .cse7 .cse8) (or .cse30 .cse9 .cse4 .cse10 .cse12 .cse17 .cse18 .cse8) (or .cse4 .cse5 .cse25 .cse17 .cse7 .cse8 .cse19) (or .cse14 .cse30 .cse4 .cse15 .cse7 .cse8)))) [2023-04-01 22:18:45,249 INFO L899 garLoopResultBuilder]: For program point L162-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,249 INFO L899 garLoopResultBuilder]: For program point L96-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,249 INFO L899 garLoopResultBuilder]: For program point L691(lines 691 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,249 INFO L899 garLoopResultBuilder]: For program point L625(lines 625 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,249 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,249 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,249 INFO L899 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L97(line 97) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L1022(lines 1022 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L891(lines 891 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L363(lines 363 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L297(lines 297 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L231(lines 231 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L165-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L99-1(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L33(lines 33 35) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L33-2(lines 32 1036) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L826(lines 826 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L760(lines 760 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L100(line 100) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L34(line 34) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 1034) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 22:18:45,250 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a3~0 1) (= ~a4~0 1) (<= ~a23~0 312) (<= 312 ~a23~0) (= ~a8~0 15) (= ~a25~0 10) (<= 130 ~a29~0) (<= ~a29~0 130)) [2023-04-01 22:18:45,250 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 22:18:45,251 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 22:18:45,253 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 22:18:45,255 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 22:18:45,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 10:18:45 BoogieIcfgContainer [2023-04-01 22:18:45,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 22:18:45,275 INFO L158 Benchmark]: Toolchain (without parser) took 110107.83ms. Allocated memory was 303.0MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 260.7MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2023-04-01 22:18:45,275 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 22:18:45,275 INFO L158 Benchmark]: CACSL2BoogieTranslator took 694.31ms. Allocated memory is still 303.0MB. Free memory was 260.7MB in the beginning and 215.1MB in the end (delta: 45.6MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2023-04-01 22:18:45,275 INFO L158 Benchmark]: Boogie Preprocessor took 146.47ms. Allocated memory is still 303.0MB. Free memory was 215.1MB in the beginning and 207.8MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-04-01 22:18:45,276 INFO L158 Benchmark]: RCFGBuilder took 1532.22ms. Allocated memory is still 303.0MB. Free memory was 207.8MB in the beginning and 167.9MB in the end (delta: 39.9MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. [2023-04-01 22:18:45,276 INFO L158 Benchmark]: TraceAbstraction took 107727.50ms. Allocated memory was 303.0MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 166.8MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2023-04-01 22:18:45,277 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 189.8MB. Free memory is still 142.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 694.31ms. Allocated memory is still 303.0MB. Free memory was 260.7MB in the beginning and 215.1MB in the end (delta: 45.6MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 146.47ms. Allocated memory is still 303.0MB. Free memory was 215.1MB in the beginning and 207.8MB in the end (delta: 7.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1532.22ms. Allocated memory is still 303.0MB. Free memory was 207.8MB in the beginning and 167.9MB in the end (delta: 39.9MB). Peak memory consumption was 59.8MB. Max. memory is 8.0GB. * TraceAbstraction took 107727.50ms. Allocated memory was 303.0MB in the beginning and 2.7GB in the end (delta: 2.4GB). Free memory was 166.8MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 2.1GB. 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: 181]: 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, 295 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 107.6s, OverallIterations: 18, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.5s, AutomataDifference: 42.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 23.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22070 SdHoareTripleChecker+Valid, 30.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22055 mSDsluCounter, 3554 SdHoareTripleChecker+Invalid, 26.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1998 mSDsCounter, 6138 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 39371 IncrementalHoareTripleChecker+Invalid, 45509 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6138 mSolverCounterUnsat, 1556 mSDtfsCounter, 39371 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13281 GetRequests, 12884 SyntacticMatches, 11 SemanticMatches, 386 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5756 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=39687occurred in iteration=16, InterpolantAutomatonStates: 334, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 5.4s AutomataMinimizationTime, 18 MinimizatonAttempts, 6658 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 1310 PreInvPairs, 1650 NumberOfFragments, 1332 HoareAnnotationTreeSize, 1310 FomulaSimplifications, 116746 FormulaSimplificationTreeSizeReduction, 17.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 37192 FormulaSimplificationTreeSizeReductionInter, 6.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 2.1s SatisfiabilityAnalysisTime, 28.4s InterpolantComputationTime, 14501 NumberOfCodeBlocks, 14501 NumberOfCodeBlocksAsserted, 33 NumberOfCheckSat, 20040 ConstructedInterpolants, 0 QuantifiedInterpolants, 60864 SizeOfPredicates, 32 NumberOfNonLiveVariables, 11311 ConjunctsInSsa, 116 ConjunctsInUnsatCore, 42 InterpolantComputations, 10 PerfectInterpolantSequences, 35786/40186 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: 1044]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((a25 == 9 && a4 == 1) && a23 <= 312) || (((307 <= a23 && a4 == 1) && a23 <= 312) && a25 == 10)) || (((a23 + 43 <= 0 && a25 <= 11) && a4 <= 0) && a29 <= 130)) || (((a23 + 43 <= 0 && a25 == 9) && 10250 <= a29) && a4 <= 0)) || ((((307 <= a23 && a4 == 1) && a23 < 600030) && (a25 == 13 || a25 == 12)) && 13 <= a25)) || !(10 == \old(a25))) || (((a25 <= 11 && 10250 <= a29) && a4 == 1) && a23 <= 312)) || \old(a23) < 312) || ((((a25 <= 11 && a29 <= 277) && 141 <= a29) && a4 == 1) && a23 <= 312)) || ((((a25 == 13 && 10250 <= a29) && a4 == 1) && a23 <= 312) && 160 <= a23)) || ((a23 + 42 < 0 && a4 == 1) && a25 == 10)) || !(a3 == 1)) || 312 < \old(a23)) || (((307 <= a23 && 141 <= a29) && a4 == 1) && a23 < 600030)) || ((((a25 == 12 && a23 + 42 < 0) && a29 <= 277) && 141 <= a29) && a4 <= 0)) || ((((a25 == 13 && a29 <= 245) && 141 <= a29) && a4 == 1) && a23 < 600030)) || (((a25 == 12 && a4 == 1) && a23 <= 312) && 160 <= a23)) || ((((a4 == 1 && a23 <= \old(a23)) && 160 <= a23) && (a25 == 13 || a25 == 12)) && a29 <= 130)) || (((a4 == 1 && 312 <= a23) && a23 < 600030) && a25 == 10)) || (((a4 == 1 && a23 <= 312) && a25 == 10) && a29 <= 130)) || !(\old(a4) == 1)) || !(a8 == 15)) || (((a23 + 43 <= 0 && a25 == 12) && a4 <= 0) && a29 <= 130)) || \old(a29) < 130) || 130 < \old(a29) RESULT: Ultimate proved your program to be correct! [2023-04-01 22:18:45,303 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...