/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/ss2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:00:49,253 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:00:49,259 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:00:49,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:00:49,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:00:49,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:00:49,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:00:49,326 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:00:49,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:00:49,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:00:49,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:00:49,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:00:49,332 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:00:49,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:00:49,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:00:49,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:00:49,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:00:49,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:00:49,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:00:49,342 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:00:49,343 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:00:49,345 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:00:49,346 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:00:49,347 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:00:49,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 11:00:49,352 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 11:00:49,352 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 11:00:49,353 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 11:00:49,354 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 11:00:49,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 11:00:49,355 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:00:49,356 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:00:49,357 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:00:49,358 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:00:49,359 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:00:49,359 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:00:49,360 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:00:49,360 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:00:49,361 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:00:49,362 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:00:49,362 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:00:49,363 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:00:49,391 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:00:49,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:00:49,392 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:00:49,392 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:00:49,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:00:49,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:00:49,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:00:49,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:00:49,395 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:00:49,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:00:49,395 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:00:49,395 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:00:49,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:00:49,396 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:00:49,396 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:00:49,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:00:49,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:00:49,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:00:49,397 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:00:49,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:00:49,397 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:00:49,397 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:00:49,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:00:49,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:00:49,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:00:49,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:00:49,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:00:49,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:00:49,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:00:49,399 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:00:49,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:00:49,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:00:49,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:00:49,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:00:49,755 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:00:49,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:00:49,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:00:49,788 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:00:49,788 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:00:49,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/ss2.c [2022-10-16 11:00:49,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba7e11a18/4388e8cb70a643a59878f0ddb44fecc9/FLAG6835986ad [2022-10-16 11:00:50,462 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:00:50,463 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss2.c [2022-10-16 11:00:50,475 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba7e11a18/4388e8cb70a643a59878f0ddb44fecc9/FLAG6835986ad [2022-10-16 11:00:50,837 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba7e11a18/4388e8cb70a643a59878f0ddb44fecc9 [2022-10-16 11:00:50,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:00:50,849 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:00:50,853 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:00:50,853 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:00:50,857 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:00:50,858 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:00:50" (1/1) ... [2022-10-16 11:00:50,860 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f9fcbb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:50, skipping insertion in model container [2022-10-16 11:00:50,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:00:50" (1/1) ... [2022-10-16 11:00:50,870 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:00:50,895 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:00:51,140 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss2.c[586,599] [2022-10-16 11:00:51,174 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:00:51,183 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:00:51,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/ss2.c[586,599] [2022-10-16 11:00:51,211 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:00:51,227 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:00:51,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51 WrapperNode [2022-10-16 11:00:51,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:00:51,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:00:51,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:00:51,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:00:51,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,279 INFO L138 Inliner]: procedures = 17, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 151 [2022-10-16 11:00:51,280 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:00:51,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:00:51,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:00:51,281 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:00:51,292 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,304 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,312 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:00:51,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:00:51,318 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:00:51,318 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:00:51,319 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (1/1) ... [2022-10-16 11:00:51,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:00:51,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:00:51,357 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:00:51,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:00:51,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:00:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:00:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 11:00:51,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 11:00:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 11:00:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:00:51,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:00:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:00:51,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 11:00:51,525 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:00:51,527 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:00:51,962 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:00:51,970 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:00:51,971 INFO L300 CfgBuilder]: Removed 7 assume(true) statements. [2022-10-16 11:00:51,973 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:00:51 BoogieIcfgContainer [2022-10-16 11:00:51,973 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:00:51,976 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:00:51,976 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:00:51,980 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:00:51,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:00:50" (1/3) ... [2022-10-16 11:00:51,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630e7bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:00:51, skipping insertion in model container [2022-10-16 11:00:51,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:00:51" (2/3) ... [2022-10-16 11:00:51,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@630e7bc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:00:51, skipping insertion in model container [2022-10-16 11:00:51,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:00:51" (3/3) ... [2022-10-16 11:00:51,983 INFO L112 eAbstractionObserver]: Analyzing ICFG ss2.c [2022-10-16 11:00:52,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:00:52,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-16 11:00:52,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:00:52,085 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@388d2fc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:00:52,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-16 11:00:52,091 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 57 states have (on average 1.7543859649122806) internal successors, (100), 83 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:52,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:00:52,099 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:52,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:00:52,101 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:52,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:52,109 INFO L85 PathProgramCache]: Analyzing trace with hash 177631151, now seen corresponding path program 1 times [2022-10-16 11:00:52,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:52,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524474949] [2022-10-16 11:00:52,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:52,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:52,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:52,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:52,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524474949] [2022-10-16 11:00:52,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524474949] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:00:52,313 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:00:52,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 11:00:52,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060113376] [2022-10-16 11:00:52,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:00:52,321 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 11:00:52,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:00:52,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 11:00:52,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:00:52,367 INFO L87 Difference]: Start difference. First operand has 84 states, 57 states have (on average 1.7543859649122806) internal successors, (100), 83 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:52,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:00:52,415 INFO L93 Difference]: Finished difference Result 163 states and 194 transitions. [2022-10-16 11:00:52,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 11:00:52,417 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) Word has length 8 [2022-10-16 11:00:52,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:00:52,425 INFO L225 Difference]: With dead ends: 163 [2022-10-16 11:00:52,426 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 11:00:52,431 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 11:00:52,437 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:00:52,438 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:00:52,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 11:00:52,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-10-16 11:00:52,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.5849056603773586) internal successors, (84), 77 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:52,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 84 transitions. [2022-10-16 11:00:52,502 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 84 transitions. Word has length 8 [2022-10-16 11:00:52,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:00:52,503 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 84 transitions. [2022-10-16 11:00:52,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:52,503 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 84 transitions. [2022-10-16 11:00:52,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 11:00:52,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:52,504 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:00:52,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 11:00:52,505 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:52,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:52,507 INFO L85 PathProgramCache]: Analyzing trace with hash 179478193, now seen corresponding path program 1 times [2022-10-16 11:00:52,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:52,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799492784] [2022-10-16 11:00:52,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:52,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:52,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:52,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:52,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799492784] [2022-10-16 11:00:52,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799492784] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:00:52,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:00:52,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:00:52,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365925992] [2022-10-16 11:00:52,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:00:52,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:00:52,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:00:52,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:00:52,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:00:52,713 INFO L87 Difference]: Start difference. First operand 78 states and 84 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:52,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:00:52,906 INFO L93 Difference]: Finished difference Result 151 states and 163 transitions. [2022-10-16 11:00:52,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:00:52,907 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 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) Word has length 8 [2022-10-16 11:00:52,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:00:52,909 INFO L225 Difference]: With dead ends: 151 [2022-10-16 11:00:52,910 INFO L226 Difference]: Without dead ends: 149 [2022-10-16 11:00:52,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:00:52,912 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 64 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:00:52,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 164 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:00:52,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-10-16 11:00:52,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 82. [2022-10-16 11:00:52,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 57 states have (on average 1.5614035087719298) internal successors, (89), 81 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:52,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 89 transitions. [2022-10-16 11:00:52,935 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 89 transitions. Word has length 8 [2022-10-16 11:00:52,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:00:52,936 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 89 transitions. [2022-10-16 11:00:52,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:52,937 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 89 transitions. [2022-10-16 11:00:52,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 11:00:52,937 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:52,937 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:00:52,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 11:00:52,938 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:52,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:52,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1268805299, now seen corresponding path program 1 times [2022-10-16 11:00:52,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:52,939 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449214836] [2022-10-16 11:00:52,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:52,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:53,072 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:53,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:53,073 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449214836] [2022-10-16 11:00:53,073 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449214836] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:00:53,073 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:00:53,074 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 11:00:53,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575380062] [2022-10-16 11:00:53,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:00:53,075 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:00:53,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:00:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:00:53,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:00:53,078 INFO L87 Difference]: Start difference. First operand 82 states and 89 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:53,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:00:53,271 INFO L93 Difference]: Finished difference Result 208 states and 227 transitions. [2022-10-16 11:00:53,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:00:53,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) Word has length 9 [2022-10-16 11:00:53,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:00:53,277 INFO L225 Difference]: With dead ends: 208 [2022-10-16 11:00:53,277 INFO L226 Difference]: Without dead ends: 141 [2022-10-16 11:00:53,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:00:53,288 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 137 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:00:53,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 92 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:00:53,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2022-10-16 11:00:53,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 86. [2022-10-16 11:00:53,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 62 states have (on average 1.4838709677419355) internal successors, (92), 85 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:53,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 92 transitions. [2022-10-16 11:00:53,321 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 92 transitions. Word has length 9 [2022-10-16 11:00:53,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:00:53,321 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 92 transitions. [2022-10-16 11:00:53,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:53,322 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 92 transitions. [2022-10-16 11:00:53,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 11:00:53,323 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:53,325 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:00:53,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 11:00:53,325 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:53,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:53,326 INFO L85 PathProgramCache]: Analyzing trace with hash 504169901, now seen corresponding path program 1 times [2022-10-16 11:00:53,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:53,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172758873] [2022-10-16 11:00:53,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:53,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:53,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:53,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:53,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:53,547 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172758873] [2022-10-16 11:00:53,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172758873] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:00:53,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008590070] [2022-10-16 11:00:53,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:53,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:00:53,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:00:53,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:00:53,568 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:00:53,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:53,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:00:53,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:00:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:53,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:00:53,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:53,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008590070] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:00:53,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:00:53,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:00:53,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595878887] [2022-10-16 11:00:53,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:00:53,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:00:53,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:00:53,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:00:53,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:00:53,741 INFO L87 Difference]: Start difference. First operand 86 states and 92 transitions. Second operand has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:53,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:00:53,932 INFO L93 Difference]: Finished difference Result 160 states and 171 transitions. [2022-10-16 11:00:53,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:00:53,932 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 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) Word has length 12 [2022-10-16 11:00:53,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:00:53,935 INFO L225 Difference]: With dead ends: 160 [2022-10-16 11:00:53,935 INFO L226 Difference]: Without dead ends: 159 [2022-10-16 11:00:53,936 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:00:53,938 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 255 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:00:53,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [255 Valid, 169 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:00:53,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2022-10-16 11:00:53,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 97. [2022-10-16 11:00:53,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 73 states have (on average 1.4794520547945205) internal successors, (108), 96 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:53,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 108 transitions. [2022-10-16 11:00:53,951 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 108 transitions. Word has length 12 [2022-10-16 11:00:53,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:00:53,952 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 108 transitions. [2022-10-16 11:00:53,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.272727272727273) internal successors, (25), 12 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:53,952 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 108 transitions. [2022-10-16 11:00:53,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:00:53,953 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:53,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:00:53,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 11:00:54,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:00:54,169 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:54,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:54,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1550653641, now seen corresponding path program 1 times [2022-10-16 11:00:54,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:54,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030574713] [2022-10-16 11:00:54,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:54,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:54,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:54,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030574713] [2022-10-16 11:00:54,775 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030574713] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:00:54,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173407444] [2022-10-16 11:00:54,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:54,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:00:54,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:00:54,777 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:00:54,791 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:00:54,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:54,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 11:00:54,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:00:54,919 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:00:54,933 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:00:54,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 11:00:55,131 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 11:00:55,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:55,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:00:55,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:55,343 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173407444] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:00:55,346 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:00:55,347 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-16 11:00:55,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321472965] [2022-10-16 11:00:55,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:00:55,350 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 11:00:55,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:00:55,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 11:00:55,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-10-16 11:00:55,352 INFO L87 Difference]: Start difference. First operand 97 states and 108 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:55,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:00:55,630 INFO L93 Difference]: Finished difference Result 113 states and 125 transitions. [2022-10-16 11:00:55,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 11:00:55,631 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 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) Word has length 13 [2022-10-16 11:00:55,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:00:55,632 INFO L225 Difference]: With dead ends: 113 [2022-10-16 11:00:55,632 INFO L226 Difference]: Without dead ends: 111 [2022-10-16 11:00:55,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2022-10-16 11:00:55,634 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 40 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 41 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:00:55,635 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 452 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 164 Invalid, 0 Unknown, 41 Unchecked, 0.2s Time] [2022-10-16 11:00:55,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-10-16 11:00:55,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 99. [2022-10-16 11:00:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 75 states have (on average 1.4666666666666666) internal successors, (110), 98 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:55,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 110 transitions. [2022-10-16 11:00:55,646 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 110 transitions. Word has length 13 [2022-10-16 11:00:55,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:00:55,646 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 110 transitions. [2022-10-16 11:00:55,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:55,647 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 110 transitions. [2022-10-16 11:00:55,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 11:00:55,647 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:55,647 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:00:55,688 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 11:00:55,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:00:55,863 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:55,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:55,864 INFO L85 PathProgramCache]: Analyzing trace with hash -1550602195, now seen corresponding path program 1 times [2022-10-16 11:00:55,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:55,865 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128609361] [2022-10-16 11:00:55,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:55,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:55,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:55,936 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:55,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:55,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128609361] [2022-10-16 11:00:55,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128609361] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:00:55,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445246016] [2022-10-16 11:00:55,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:55,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:00:55,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:00:55,939 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:00:55,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:00:56,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:56,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:00:56,008 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:00:56,065 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:56,065 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:00:56,065 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445246016] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:00:56,065 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:00:56,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:00:56,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691967680] [2022-10-16 11:00:56,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:00:56,066 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:00:56,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:00:56,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:00:56,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:00:56,070 INFO L87 Difference]: Start difference. First operand 99 states and 110 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:56,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:00:56,174 INFO L93 Difference]: Finished difference Result 150 states and 161 transitions. [2022-10-16 11:00:56,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:00:56,175 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 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) Word has length 13 [2022-10-16 11:00:56,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:00:56,176 INFO L225 Difference]: With dead ends: 150 [2022-10-16 11:00:56,176 INFO L226 Difference]: Without dead ends: 149 [2022-10-16 11:00:56,176 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:00:56,181 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 62 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:00:56,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 204 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:00:56,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-10-16 11:00:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 98. [2022-10-16 11:00:56,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 75 states have (on average 1.4266666666666667) internal successors, (107), 97 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 107 transitions. [2022-10-16 11:00:56,213 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 107 transitions. Word has length 13 [2022-10-16 11:00:56,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:00:56,214 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 107 transitions. [2022-10-16 11:00:56,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:56,214 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 107 transitions. [2022-10-16 11:00:56,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:00:56,215 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:56,215 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:00:56,253 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:00:56,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:00:56,432 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:56,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:56,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1145690293, now seen corresponding path program 1 times [2022-10-16 11:00:56,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:56,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089122294] [2022-10-16 11:00:56,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:56,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:56,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:56,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:00:56,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:56,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089122294] [2022-10-16 11:00:56,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089122294] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:00:56,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:00:56,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:00:56,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816594924] [2022-10-16 11:00:56,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:00:56,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:00:56,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:00:56,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:00:56,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:00:56,487 INFO L87 Difference]: Start difference. First operand 98 states and 107 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:56,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:00:56,569 INFO L93 Difference]: Finished difference Result 149 states and 158 transitions. [2022-10-16 11:00:56,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:00:56,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) Word has length 16 [2022-10-16 11:00:56,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:00:56,571 INFO L225 Difference]: With dead ends: 149 [2022-10-16 11:00:56,571 INFO L226 Difference]: Without dead ends: 147 [2022-10-16 11:00:56,571 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:00:56,572 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 51 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:00:56,573 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 170 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:00:56,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2022-10-16 11:00:56,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 101. [2022-10-16 11:00:56,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 78 states have (on average 1.4102564102564104) internal successors, (110), 100 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:56,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 110 transitions. [2022-10-16 11:00:56,581 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 110 transitions. Word has length 16 [2022-10-16 11:00:56,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:00:56,582 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 110 transitions. [2022-10-16 11:00:56,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:56,582 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 110 transitions. [2022-10-16 11:00:56,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 11:00:56,583 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:56,583 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:00:56,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 11:00:56,583 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:56,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:56,584 INFO L85 PathProgramCache]: Analyzing trace with hash -845503427, now seen corresponding path program 1 times [2022-10-16 11:00:56,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:56,584 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290071856] [2022-10-16 11:00:56,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:56,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:56,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:56,704 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:56,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:56,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290071856] [2022-10-16 11:00:56,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290071856] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:00:56,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [408188597] [2022-10-16 11:00:56,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:56,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:00:56,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:00:56,707 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:00:56,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:00:56,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:56,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:00:56,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:00:56,852 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:56,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:00:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:56,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [408188597] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:00:56,923 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:00:56,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 11:00:56,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666409212] [2022-10-16 11:00:56,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:00:56,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:00:56,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:00:56,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:00:56,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:00:56,925 INFO L87 Difference]: Start difference. First operand 101 states and 110 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:57,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:00:57,467 INFO L93 Difference]: Finished difference Result 327 states and 348 transitions. [2022-10-16 11:00:57,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 11:00:57,468 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) Word has length 19 [2022-10-16 11:00:57,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:00:57,469 INFO L225 Difference]: With dead ends: 327 [2022-10-16 11:00:57,469 INFO L226 Difference]: Without dead ends: 258 [2022-10-16 11:00:57,471 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 26 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-10-16 11:00:57,471 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 409 mSDsluCounter, 423 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:00:57,472 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 474 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:00:57,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2022-10-16 11:00:57,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 150. [2022-10-16 11:00:57,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 127 states have (on average 1.4173228346456692) internal successors, (180), 149 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:57,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 180 transitions. [2022-10-16 11:00:57,484 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 180 transitions. Word has length 19 [2022-10-16 11:00:57,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:00:57,484 INFO L495 AbstractCegarLoop]: Abstraction has 150 states and 180 transitions. [2022-10-16 11:00:57,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:57,484 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 180 transitions. [2022-10-16 11:00:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 11:00:57,485 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:57,485 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] [2022-10-16 11:00:57,536 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:00:57,700 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:00:57,701 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:57,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:57,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1589199155, now seen corresponding path program 1 times [2022-10-16 11:00:57,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:57,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26772111] [2022-10-16 11:00:57,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:57,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:57,758 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:00:57,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:57,759 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26772111] [2022-10-16 11:00:57,759 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26772111] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:00:57,759 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:00:57,759 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:00:57,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161030553] [2022-10-16 11:00:57,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:00:57,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:00:57,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:00:57,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:00:57,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:00:57,761 INFO L87 Difference]: Start difference. First operand 150 states and 180 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:57,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:00:57,841 INFO L93 Difference]: Finished difference Result 224 states and 271 transitions. [2022-10-16 11:00:57,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:00:57,842 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 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) Word has length 22 [2022-10-16 11:00:57,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:00:57,844 INFO L225 Difference]: With dead ends: 224 [2022-10-16 11:00:57,844 INFO L226 Difference]: Without dead ends: 222 [2022-10-16 11:00:57,845 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:00:57,847 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 51 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:00:57,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 170 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:00:57,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-10-16 11:00:57,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 156. [2022-10-16 11:00:57,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 133 states have (on average 1.3984962406015038) internal successors, (186), 155 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:57,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 186 transitions. [2022-10-16 11:00:57,861 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 186 transitions. Word has length 22 [2022-10-16 11:00:57,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:00:57,862 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 186 transitions. [2022-10-16 11:00:57,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:00:57,862 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 186 transitions. [2022-10-16 11:00:57,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 11:00:57,864 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:00:57,865 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:00:57,865 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 11:00:57,865 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:00:57,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:00:57,866 INFO L85 PathProgramCache]: Analyzing trace with hash 1489192897, now seen corresponding path program 2 times [2022-10-16 11:00:57,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:00:57,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14891404] [2022-10-16 11:00:57,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:00:57,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:00:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:00:59,188 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:00:59,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:00:59,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14891404] [2022-10-16 11:00:59,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14891404] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:00:59,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027223792] [2022-10-16 11:00:59,190 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:00:59,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:00:59,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:00:59,191 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:00:59,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 11:00:59,261 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:00:59,262 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:00:59,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 37 conjunts are in the unsatisfiable core [2022-10-16 11:00:59,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:00:59,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:00:59,318 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:00:59,365 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:00:59,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:00:59,519 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 30 [2022-10-16 11:00:59,778 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:00:59,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:00:59,780 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 42 [2022-10-16 11:00:59,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 16 [2022-10-16 11:01:00,005 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:00,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:03,307 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:03,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027223792] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:03,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:03,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2022-10-16 11:01:03,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293656234] [2022-10-16 11:01:03,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:03,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 11:01:03,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:03,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 11:01:03,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1069, Unknown=1, NotChecked=0, Total=1260 [2022-10-16 11:01:03,310 INFO L87 Difference]: Start difference. First operand 156 states and 186 transitions. Second operand has 36 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 36 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:05,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:05,121 INFO L93 Difference]: Finished difference Result 184 states and 218 transitions. [2022-10-16 11:01:05,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 11:01:05,122 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 36 states have internal predecessors, (61), 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) Word has length 23 [2022-10-16 11:01:05,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:05,123 INFO L225 Difference]: With dead ends: 184 [2022-10-16 11:01:05,124 INFO L226 Difference]: Without dead ends: 183 [2022-10-16 11:01:05,125 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 505 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=366, Invalid=1889, Unknown=1, NotChecked=0, Total=2256 [2022-10-16 11:01:05,126 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 79 mSDsluCounter, 836 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 172 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:05,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 914 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 412 Invalid, 0 Unknown, 172 Unchecked, 0.4s Time] [2022-10-16 11:01:05,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-10-16 11:01:05,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 167. [2022-10-16 11:01:05,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 144 states have (on average 1.3819444444444444) internal successors, (199), 166 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:05,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 199 transitions. [2022-10-16 11:01:05,139 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 199 transitions. Word has length 23 [2022-10-16 11:01:05,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:05,145 INFO L495 AbstractCegarLoop]: Abstraction has 167 states and 199 transitions. [2022-10-16 11:01:05,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 1.7428571428571429) internal successors, (61), 36 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:05,146 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 199 transitions. [2022-10-16 11:01:05,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:01:05,146 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:05,150 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:05,190 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:05,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-16 11:01:05,364 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:05,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:05,365 INFO L85 PathProgramCache]: Analyzing trace with hash -1079660375, now seen corresponding path program 1 times [2022-10-16 11:01:05,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:05,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842751064] [2022-10-16 11:01:05,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:05,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:05,873 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:05,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:05,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842751064] [2022-10-16 11:01:05,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842751064] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:05,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [252632903] [2022-10-16 11:01:05,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:05,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:05,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:05,875 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) [2022-10-16 11:01:05,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 11:01:05,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:05,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 11:01:05,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:05,959 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:01:06,031 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-16 11:01:06,156 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 11:01:06,278 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 15 [2022-10-16 11:01:06,306 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:06,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:07,273 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_205 Int)) (or (< 0 (+ v_ArrVal_205 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_205)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (< (+ v_ArrVal_205 9223372036854775808) 0))) is different from false [2022-10-16 11:01:08,205 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 84 [2022-10-16 11:01:08,291 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 3 not checked. [2022-10-16 11:01:08,291 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [252632903] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:08,291 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:08,291 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 26 [2022-10-16 11:01:08,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822374008] [2022-10-16 11:01:08,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:08,292 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 11:01:08,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:08,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 11:01:08,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=564, Unknown=1, NotChecked=48, Total=702 [2022-10-16 11:01:08,294 INFO L87 Difference]: Start difference. First operand 167 states and 199 transitions. Second operand has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:09,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:09,140 INFO L93 Difference]: Finished difference Result 265 states and 302 transitions. [2022-10-16 11:01:09,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 11:01:09,141 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 27 states have internal predecessors, (59), 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) Word has length 24 [2022-10-16 11:01:09,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:09,143 INFO L225 Difference]: With dead ends: 265 [2022-10-16 11:01:09,143 INFO L226 Difference]: Without dead ends: 264 [2022-10-16 11:01:09,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=170, Invalid=889, Unknown=1, NotChecked=62, Total=1122 [2022-10-16 11:01:09,145 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 247 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 766 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 1287 SdHoareTripleChecker+Invalid, 955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 142 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:09,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 1287 Invalid, 955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 766 Invalid, 0 Unknown, 142 Unchecked, 0.6s Time] [2022-10-16 11:01:09,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2022-10-16 11:01:09,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 170. [2022-10-16 11:01:09,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 147 states have (on average 1.3877551020408163) internal successors, (204), 169 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:09,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 204 transitions. [2022-10-16 11:01:09,160 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 204 transitions. Word has length 24 [2022-10-16 11:01:09,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:09,161 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 204 transitions. [2022-10-16 11:01:09,161 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 2.269230769230769) internal successors, (59), 27 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:09,161 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 204 transitions. [2022-10-16 11:01:09,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:01:09,164 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:09,165 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:09,199 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-16 11:01:09,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:09,379 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:09,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:09,380 INFO L85 PathProgramCache]: Analyzing trace with hash -897513823, now seen corresponding path program 2 times [2022-10-16 11:01:09,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:09,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084650842] [2022-10-16 11:01:09,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:09,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:09,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:09,551 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:09,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:09,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084650842] [2022-10-16 11:01:09,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084650842] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:09,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588300192] [2022-10-16 11:01:09,553 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:01:09,553 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:09,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:09,554 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) [2022-10-16 11:01:09,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 11:01:09,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 11:01:09,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:01:09,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 11:01:09,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:01:09,665 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:09,707 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-10-16 11:01:09,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588300192] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:09,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:09,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 11:01:09,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39286907] [2022-10-16 11:01:09,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:09,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 11:01:09,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:09,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 11:01:09,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:01:09,712 INFO L87 Difference]: Start difference. First operand 170 states and 204 transitions. Second operand has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:10,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:10,013 INFO L93 Difference]: Finished difference Result 243 states and 294 transitions. [2022-10-16 11:01:10,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:01:10,014 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 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) Word has length 24 [2022-10-16 11:01:10,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:10,016 INFO L225 Difference]: With dead ends: 243 [2022-10-16 11:01:10,016 INFO L226 Difference]: Without dead ends: 242 [2022-10-16 11:01:10,017 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=495, Unknown=0, NotChecked=0, Total=702 [2022-10-16 11:01:10,017 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 325 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:10,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [325 Valid, 183 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:01:10,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2022-10-16 11:01:10,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 169. [2022-10-16 11:01:10,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 147 states have (on average 1.380952380952381) internal successors, (203), 168 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:10,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 203 transitions. [2022-10-16 11:01:10,032 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 203 transitions. Word has length 24 [2022-10-16 11:01:10,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:10,032 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 203 transitions. [2022-10-16 11:01:10,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5) internal successors, (35), 15 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:10,033 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 203 transitions. [2022-10-16 11:01:10,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:01:10,033 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:10,033 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:10,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:10,248 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:10,249 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:10,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:10,250 INFO L85 PathProgramCache]: Analyzing trace with hash -248684241, now seen corresponding path program 1 times [2022-10-16 11:01:10,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:10,250 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312294469] [2022-10-16 11:01:10,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:10,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:10,312 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:01:10,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:10,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [312294469] [2022-10-16 11:01:10,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [312294469] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:10,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798174516] [2022-10-16 11:01:10,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:10,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:10,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:10,314 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) [2022-10-16 11:01:10,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 11:01:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:10,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:01:10,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:10,469 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:01:10,469 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:10,549 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:01:10,549 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798174516] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:10,549 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:10,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 15 [2022-10-16 11:01:10,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190208614] [2022-10-16 11:01:10,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:10,551 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 11:01:10,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:10,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 11:01:10,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-10-16 11:01:10,552 INFO L87 Difference]: Start difference. First operand 169 states and 203 transitions. Second operand has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:11,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:11,022 INFO L93 Difference]: Finished difference Result 384 states and 441 transitions. [2022-10-16 11:01:11,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 11:01:11,023 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 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) Word has length 26 [2022-10-16 11:01:11,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:11,025 INFO L225 Difference]: With dead ends: 384 [2022-10-16 11:01:11,025 INFO L226 Difference]: Without dead ends: 327 [2022-10-16 11:01:11,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 41 SyntacticMatches, 4 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=124, Invalid=476, Unknown=0, NotChecked=0, Total=600 [2022-10-16 11:01:11,030 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 425 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 425 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:11,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [425 Valid, 475 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:01:11,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-10-16 11:01:11,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 169. [2022-10-16 11:01:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 147 states have (on average 1.3673469387755102) internal successors, (201), 168 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:11,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 201 transitions. [2022-10-16 11:01:11,051 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 201 transitions. Word has length 26 [2022-10-16 11:01:11,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:11,052 INFO L495 AbstractCegarLoop]: Abstraction has 169 states and 201 transitions. [2022-10-16 11:01:11,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.6) internal successors, (54), 15 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:11,052 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 201 transitions. [2022-10-16 11:01:11,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:01:11,055 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:11,056 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:11,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:11,271 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,SelfDestructingSolverStorable12 [2022-10-16 11:01:11,272 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:11,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:11,273 INFO L85 PathProgramCache]: Analyzing trace with hash 1828467691, now seen corresponding path program 1 times [2022-10-16 11:01:11,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:11,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589746834] [2022-10-16 11:01:11,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:11,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:11,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:11,341 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:01:11,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:11,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589746834] [2022-10-16 11:01:11,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589746834] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:11,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841428642] [2022-10-16 11:01:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:11,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:11,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:11,343 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) [2022-10-16 11:01:11,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 11:01:11,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:11,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:01:11,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:11,434 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:01:11,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:11,468 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:01:11,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841428642] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:11,468 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:11,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 11:01:11,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270364738] [2022-10-16 11:01:11,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:11,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 11:01:11,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:11,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 11:01:11,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 11:01:11,470 INFO L87 Difference]: Start difference. First operand 169 states and 201 transitions. Second operand has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:11,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:11,705 INFO L93 Difference]: Finished difference Result 262 states and 312 transitions. [2022-10-16 11:01:11,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:01:11,705 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 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) Word has length 26 [2022-10-16 11:01:11,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:11,709 INFO L225 Difference]: With dead ends: 262 [2022-10-16 11:01:11,709 INFO L226 Difference]: Without dead ends: 261 [2022-10-16 11:01:11,709 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 11:01:11,711 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 121 mSDsluCounter, 350 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:11,711 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 412 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:01:11,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-10-16 11:01:11,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 183. [2022-10-16 11:01:11,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 161 states have (on average 1.3850931677018634) internal successors, (223), 182 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:11,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 223 transitions. [2022-10-16 11:01:11,733 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 223 transitions. Word has length 26 [2022-10-16 11:01:11,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:11,733 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 223 transitions. [2022-10-16 11:01:11,733 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.727272727272727) internal successors, (41), 12 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:11,734 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 223 transitions. [2022-10-16 11:01:11,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:01:11,739 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:11,739 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] [2022-10-16 11:01:11,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:11,953 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 11:01:11,953 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:11,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:11,954 INFO L85 PathProgramCache]: Analyzing trace with hash 880671773, now seen corresponding path program 1 times [2022-10-16 11:01:11,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:11,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369032012] [2022-10-16 11:01:11,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:11,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:11,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:12,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:12,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:12,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369032012] [2022-10-16 11:01:12,612 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369032012] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:12,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026266626] [2022-10-16 11:01:12,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:12,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:12,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:12,614 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) [2022-10-16 11:01:12,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 11:01:12,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:12,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 11:01:12,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:12,687 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:01:12,746 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:01:12,817 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 11:01:12,912 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2022-10-16 11:01:12,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:01:12,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:13,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:01:13,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026266626] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:13,157 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:13,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 7] total 23 [2022-10-16 11:01:13,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217265732] [2022-10-16 11:01:13,158 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:13,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 11:01:13,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:13,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 11:01:13,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:01:13,159 INFO L87 Difference]: Start difference. First operand 183 states and 223 transitions. Second operand has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:14,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:14,005 INFO L93 Difference]: Finished difference Result 279 states and 345 transitions. [2022-10-16 11:01:14,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-10-16 11:01:14,005 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 24 states have internal predecessors, (73), 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) Word has length 27 [2022-10-16 11:01:14,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:14,007 INFO L225 Difference]: With dead ends: 279 [2022-10-16 11:01:14,007 INFO L226 Difference]: Without dead ends: 278 [2022-10-16 11:01:14,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 44 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=295, Invalid=1037, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 11:01:14,009 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 315 mSDsluCounter, 687 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 52 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:14,010 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 750 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 399 Invalid, 0 Unknown, 52 Unchecked, 0.4s Time] [2022-10-16 11:01:14,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2022-10-16 11:01:14,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 185. [2022-10-16 11:01:14,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 184 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:14,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 225 transitions. [2022-10-16 11:01:14,046 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 225 transitions. Word has length 27 [2022-10-16 11:01:14,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:14,046 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 225 transitions. [2022-10-16 11:01:14,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.1739130434782608) internal successors, (73), 24 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:14,047 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 225 transitions. [2022-10-16 11:01:14,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:01:14,047 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:14,047 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:14,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:14,263 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,SelfDestructingSolverStorable14 [2022-10-16 11:01:14,263 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:14,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:14,264 INFO L85 PathProgramCache]: Analyzing trace with hash 847923653, now seen corresponding path program 1 times [2022-10-16 11:01:14,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:14,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083190051] [2022-10-16 11:01:14,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:14,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:14,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:14,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:01:14,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:14,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083190051] [2022-10-16 11:01:14,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083190051] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:14,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [926714876] [2022-10-16 11:01:14,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:14,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:14,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:14,352 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) [2022-10-16 11:01:14,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 11:01:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:14,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 11:01:14,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 11:01:14,460 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:01:14,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [926714876] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:01:14,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 11:01:14,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 11:01:14,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106218614] [2022-10-16 11:01:14,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:01:14,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 11:01:14,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:14,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 11:01:14,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 11:01:14,462 INFO L87 Difference]: Start difference. First operand 185 states and 225 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:14,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:14,564 INFO L93 Difference]: Finished difference Result 248 states and 302 transitions. [2022-10-16 11:01:14,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 11:01:14,565 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 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) Word has length 27 [2022-10-16 11:01:14,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:14,567 INFO L225 Difference]: With dead ends: 248 [2022-10-16 11:01:14,567 INFO L226 Difference]: Without dead ends: 247 [2022-10-16 11:01:14,567 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 11:01:14,568 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 59 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:14,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 193 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:01:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-10-16 11:01:14,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 184. [2022-10-16 11:01:14,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 163 states have (on average 1.361963190184049) internal successors, (222), 183 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:14,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 222 transitions. [2022-10-16 11:01:14,585 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 222 transitions. Word has length 27 [2022-10-16 11:01:14,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:14,585 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 222 transitions. [2022-10-16 11:01:14,585 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:14,585 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 222 transitions. [2022-10-16 11:01:14,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 11:01:14,587 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:14,587 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] [2022-10-16 11:01:14,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:14,800 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,SelfDestructingSolverStorable15 [2022-10-16 11:01:14,800 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:14,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:14,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1531021301, now seen corresponding path program 1 times [2022-10-16 11:01:14,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:14,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758106919] [2022-10-16 11:01:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:14,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:14,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:15,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:15,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:15,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758106919] [2022-10-16 11:01:15,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758106919] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:15,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096098018] [2022-10-16 11:01:15,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:15,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:15,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:15,525 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) [2022-10-16 11:01:15,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 11:01:15,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:15,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 22 conjunts are in the unsatisfiable core [2022-10-16 11:01:15,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:15,618 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:01:15,671 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:01:15,747 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-16 11:01:15,853 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 15 [2022-10-16 11:01:15,872 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:01:15,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:16,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 11:01:16,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096098018] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:16,086 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:16,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 6] total 21 [2022-10-16 11:01:16,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714644266] [2022-10-16 11:01:16,087 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:16,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 11:01:16,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:16,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 11:01:16,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:01:16,089 INFO L87 Difference]: Start difference. First operand 184 states and 222 transitions. Second operand has 22 states, 21 states have (on average 3.619047619047619) internal successors, (76), 22 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:16,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:16,937 INFO L93 Difference]: Finished difference Result 356 states and 437 transitions. [2022-10-16 11:01:16,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 11:01:16,937 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 3.619047619047619) internal successors, (76), 22 states have internal predecessors, (76), 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) Word has length 28 [2022-10-16 11:01:16,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:16,939 INFO L225 Difference]: With dead ends: 356 [2022-10-16 11:01:16,940 INFO L226 Difference]: Without dead ends: 355 [2022-10-16 11:01:16,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 48 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 303 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=312, Invalid=948, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 11:01:16,942 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 390 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:16,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 601 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 336 Invalid, 0 Unknown, 31 Unchecked, 0.3s Time] [2022-10-16 11:01:16,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2022-10-16 11:01:16,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 186. [2022-10-16 11:01:16,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 165 states have (on average 1.3575757575757577) internal successors, (224), 185 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:16,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 224 transitions. [2022-10-16 11:01:16,964 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 224 transitions. Word has length 28 [2022-10-16 11:01:16,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:16,964 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 224 transitions. [2022-10-16 11:01:16,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 3.619047619047619) internal successors, (76), 22 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:16,965 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 224 transitions. [2022-10-16 11:01:16,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 11:01:16,965 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:16,966 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:16,992 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:17,174 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,SelfDestructingSolverStorable16 [2022-10-16 11:01:17,175 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:17,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:17,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1189153465, now seen corresponding path program 3 times [2022-10-16 11:01:17,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:17,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678382191] [2022-10-16 11:01:17,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:17,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:17,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:17,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678382191] [2022-10-16 11:01:17,348 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678382191] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:17,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426573549] [2022-10-16 11:01:17,348 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 11:01:17,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:17,349 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:17,350 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) [2022-10-16 11:01:17,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 11:01:17,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 11:01:17,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:01:17,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 11:01:17,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:17,557 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:17,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:17,684 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:17,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426573549] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:17,684 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:17,685 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 11:01:17,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251400175] [2022-10-16 11:01:17,685 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:17,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 11:01:17,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:17,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 11:01:17,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 11:01:17,687 INFO L87 Difference]: Start difference. First operand 186 states and 224 transitions. Second operand has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:18,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:18,259 INFO L93 Difference]: Finished difference Result 550 states and 670 transitions. [2022-10-16 11:01:18,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-16 11:01:18,259 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 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) Word has length 29 [2022-10-16 11:01:18,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:18,262 INFO L225 Difference]: With dead ends: 550 [2022-10-16 11:01:18,262 INFO L226 Difference]: Without dead ends: 427 [2022-10-16 11:01:18,265 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 40 SyntacticMatches, 9 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=960, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 11:01:18,265 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 517 mSDsluCounter, 511 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:18,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 563 Invalid, 615 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 11:01:18,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2022-10-16 11:01:18,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 212. [2022-10-16 11:01:18,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 191 states have (on average 1.3350785340314135) internal successors, (255), 211 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:18,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 255 transitions. [2022-10-16 11:01:18,297 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 255 transitions. Word has length 29 [2022-10-16 11:01:18,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:18,297 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 255 transitions. [2022-10-16 11:01:18,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.5) internal successors, (55), 22 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:18,298 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 255 transitions. [2022-10-16 11:01:18,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 11:01:18,299 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:18,299 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] [2022-10-16 11:01:18,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:18,513 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,SelfDestructingSolverStorable17 [2022-10-16 11:01:18,514 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:18,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:18,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1862308553, now seen corresponding path program 1 times [2022-10-16 11:01:18,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:18,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400281446] [2022-10-16 11:01:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:18,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:18,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 11:01:18,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:18,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400281446] [2022-10-16 11:01:18,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400281446] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:01:18,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:01:18,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:01:18,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55345431] [2022-10-16 11:01:18,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:01:18,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:01:18,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:18,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:01:18,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:01:18,578 INFO L87 Difference]: Start difference. First operand 212 states and 255 transitions. Second operand has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:18,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:18,668 INFO L93 Difference]: Finished difference Result 272 states and 328 transitions. [2022-10-16 11:01:18,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 11:01:18,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 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) Word has length 30 [2022-10-16 11:01:18,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:18,670 INFO L225 Difference]: With dead ends: 272 [2022-10-16 11:01:18,670 INFO L226 Difference]: Without dead ends: 270 [2022-10-16 11:01:18,671 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:01:18,671 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 45 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:18,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 164 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 11:01:18,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-10-16 11:01:18,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 218. [2022-10-16 11:01:18,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 197 states have (on average 1.3248730964467006) internal successors, (261), 217 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:18,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 261 transitions. [2022-10-16 11:01:18,711 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 261 transitions. Word has length 30 [2022-10-16 11:01:18,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:18,712 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 261 transitions. [2022-10-16 11:01:18,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.0) internal successors, (30), 4 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:18,712 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 261 transitions. [2022-10-16 11:01:18,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 11:01:18,712 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:18,713 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:18,713 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 11:01:18,713 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:18,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:18,713 INFO L85 PathProgramCache]: Analyzing trace with hash 496870551, now seen corresponding path program 1 times [2022-10-16 11:01:18,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:18,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875622396] [2022-10-16 11:01:18,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:18,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:18,831 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:01:18,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:18,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875622396] [2022-10-16 11:01:18,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875622396] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:18,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858812370] [2022-10-16 11:01:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:18,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:18,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:18,833 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) [2022-10-16 11:01:18,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 11:01:18,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:18,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:01:18,910 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:19,007 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:01:19,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:19,097 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 11:01:19,097 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858812370] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:19,097 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:19,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 11:01:19,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922655932] [2022-10-16 11:01:19,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:19,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:01:19,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:19,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:01:19,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:01:19,103 INFO L87 Difference]: Start difference. First operand 218 states and 261 transitions. Second operand has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:19,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:19,605 INFO L93 Difference]: Finished difference Result 478 states and 562 transitions. [2022-10-16 11:01:19,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 11:01:19,606 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 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) Word has length 31 [2022-10-16 11:01:19,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:19,608 INFO L225 Difference]: With dead ends: 478 [2022-10-16 11:01:19,609 INFO L226 Difference]: Without dead ends: 356 [2022-10-16 11:01:19,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=432, Unknown=0, NotChecked=0, Total=552 [2022-10-16 11:01:19,610 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 411 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:19,610 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 531 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:01:19,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2022-10-16 11:01:19,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 218. [2022-10-16 11:01:19,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 197 states have (on average 1.3096446700507614) internal successors, (258), 217 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:19,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 258 transitions. [2022-10-16 11:01:19,639 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 258 transitions. Word has length 31 [2022-10-16 11:01:19,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:19,639 INFO L495 AbstractCegarLoop]: Abstraction has 218 states and 258 transitions. [2022-10-16 11:01:19,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.0) internal successors, (48), 16 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:19,639 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 258 transitions. [2022-10-16 11:01:19,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 11:01:19,640 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:19,640 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 11:01:19,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:19,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:19,853 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:19,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:19,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1941421149, now seen corresponding path program 1 times [2022-10-16 11:01:19,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:19,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736742528] [2022-10-16 11:01:19,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:19,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:19,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:20,000 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:01:20,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:20,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736742528] [2022-10-16 11:01:20,001 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736742528] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:20,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39434201] [2022-10-16 11:01:20,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:20,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:20,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:20,002 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) [2022-10-16 11:01:20,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 11:01:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:20,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 11:01:20,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:20,175 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:01:20,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:20,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 11:01:20,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39434201] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:20,264 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:20,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 11:01:20,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971650226] [2022-10-16 11:01:20,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:20,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 11:01:20,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:20,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 11:01:20,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 11:01:20,266 INFO L87 Difference]: Start difference. First operand 218 states and 258 transitions. Second operand has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:20,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:01:20,680 INFO L93 Difference]: Finished difference Result 395 states and 452 transitions. [2022-10-16 11:01:20,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 11:01:20,681 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 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) Word has length 33 [2022-10-16 11:01:20,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:01:20,683 INFO L225 Difference]: With dead ends: 395 [2022-10-16 11:01:20,683 INFO L226 Difference]: Without dead ends: 347 [2022-10-16 11:01:20,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 54 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2022-10-16 11:01:20,685 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 281 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 488 SdHoareTripleChecker+Invalid, 492 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 11:01:20,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 488 Invalid, 492 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 11:01:20,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-10-16 11:01:20,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 226. [2022-10-16 11:01:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 205 states have (on average 1.2975609756097561) internal successors, (266), 225 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:20,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 266 transitions. [2022-10-16 11:01:20,726 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 266 transitions. Word has length 33 [2022-10-16 11:01:20,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:01:20,726 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 266 transitions. [2022-10-16 11:01:20,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.3125) internal successors, (53), 16 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:20,726 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 266 transitions. [2022-10-16 11:01:20,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 11:01:20,727 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:01:20,727 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:01:20,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 11:01:20,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:20,941 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:01:20,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:01:20,942 INFO L85 PathProgramCache]: Analyzing trace with hash -704379957, now seen corresponding path program 4 times [2022-10-16 11:01:20,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:01:20,943 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233296057] [2022-10-16 11:01:20,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:01:20,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:01:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:01:22,648 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:22,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:01:22,649 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233296057] [2022-10-16 11:01:22,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233296057] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:01:22,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815352891] [2022-10-16 11:01:22,650 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 11:01:22,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:01:22,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:01:22,651 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:01:22,662 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 11:01:22,736 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 11:01:22,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:01:22,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 11:01:22,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:01:22,765 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:01:22,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:22,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:01:23,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:23,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:23,036 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-10-16 11:01:23,281 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:23,282 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:23,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:23,285 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 42 [2022-10-16 11:01:23,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:23,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:23,664 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:01:23,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:23,668 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 54 [2022-10-16 11:01:24,119 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:24,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:24,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:24,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:24,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:24,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:01:24,125 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 52 [2022-10-16 11:01:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:01:24,446 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 19 [2022-10-16 11:01:24,500 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:24,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:01:30,492 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:01:30,492 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815352891] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:01:30,492 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:01:30,493 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 56 [2022-10-16 11:01:30,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157563146] [2022-10-16 11:01:30,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:01:30,493 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-10-16 11:01:30,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:01:30,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-10-16 11:01:30,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=2829, Unknown=0, NotChecked=0, Total=3192 [2022-10-16 11:01:30,496 INFO L87 Difference]: Start difference. First operand 226 states and 266 transitions. Second operand has 57 states, 56 states have (on average 1.625) internal successors, (91), 57 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:01:46,236 WARN L233 SmtUtils]: Spent 8.66s on a formula simplification. DAG size of input: 162 DAG size of output: 145 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 11:02:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:01,525 INFO L93 Difference]: Finished difference Result 275 states and 321 transitions. [2022-10-16 11:02:01,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-10-16 11:02:01,530 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 1.625) internal successors, (91), 57 states have internal predecessors, (91), 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) Word has length 33 [2022-10-16 11:02:01,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:01,531 INFO L225 Difference]: With dead ends: 275 [2022-10-16 11:02:01,531 INFO L226 Difference]: Without dead ends: 274 [2022-10-16 11:02:01,536 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2180 ImplicationChecksByTransitivity, 37.1s TimeCoverageRelationStatistics Valid=1092, Invalid=8410, Unknown=4, NotChecked=0, Total=9506 [2022-10-16 11:02:01,537 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 138 mSDsluCounter, 1097 mSDsCounter, 0 mSdLazyCounter, 764 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 764 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 932 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:01,539 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 1175 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 764 Invalid, 0 Unknown, 932 Unchecked, 0.8s Time] [2022-10-16 11:02:01,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-10-16 11:02:01,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 249. [2022-10-16 11:02:01,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 228 states have (on average 1.2850877192982457) internal successors, (293), 248 states have internal predecessors, (293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:01,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 293 transitions. [2022-10-16 11:02:01,567 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 293 transitions. Word has length 33 [2022-10-16 11:02:01,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:01,567 INFO L495 AbstractCegarLoop]: Abstraction has 249 states and 293 transitions. [2022-10-16 11:02:01,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 1.625) internal successors, (91), 57 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:01,568 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 293 transitions. [2022-10-16 11:02:01,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 11:02:01,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:01,568 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:01,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:01,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2022-10-16 11:02:01,785 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:02:01,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:01,786 INFO L85 PathProgramCache]: Analyzing trace with hash -360942113, now seen corresponding path program 2 times [2022-10-16 11:02:01,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:01,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524792462] [2022-10-16 11:02:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:01,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:01,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:02,413 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:02,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:02,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524792462] [2022-10-16 11:02:02,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524792462] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:02,413 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184214336] [2022-10-16 11:02:02,413 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 11:02:02,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:02,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:02,414 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:02:02,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 11:02:02,485 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 11:02:02,485 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:02:02,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 37 conjunts are in the unsatisfiable core [2022-10-16 11:02:02,489 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:02,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:02:02,552 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-10-16 11:02:02,758 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 20 [2022-10-16 11:02:02,994 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:02:03,238 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 11:02:03,239 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 18 [2022-10-16 11:02:03,284 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:03,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:04,074 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:02:04,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 25 [2022-10-16 11:02:04,084 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< (+ 9223372036854775808 .cse0) 0) (< 0 (+ (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) 16 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse0))))) is different from false [2022-10-16 11:02:04,118 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_1 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_1 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< (+ 9223372036854775808 .cse0) 0) (< 0 (+ 9223372036854775809 .cse0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_1) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 16 |c_ULTIMATE.start_main_~a~0#1.offset|))))))) is different from false [2022-10-16 11:02:04,165 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:02:04,166 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 29 treesize of output 30 [2022-10-16 11:02:04,177 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:02:04,177 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 48 treesize of output 44 [2022-10-16 11:02:04,190 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 11:02:04,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 37 [2022-10-16 11:02:04,275 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 15 not checked. [2022-10-16 11:02:04,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184214336] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:04,276 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:04,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 15] total 32 [2022-10-16 11:02:04,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071656111] [2022-10-16 11:02:04,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:04,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 11:02:04,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:04,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 11:02:04,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=833, Unknown=2, NotChecked=118, Total=1056 [2022-10-16 11:02:04,278 INFO L87 Difference]: Start difference. First operand 249 states and 293 transitions. Second operand has 33 states, 32 states have (on average 2.375) internal successors, (76), 33 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:05,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:05,517 INFO L93 Difference]: Finished difference Result 277 states and 323 transitions. [2022-10-16 11:02:05,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 11:02:05,520 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.375) internal successors, (76), 33 states have internal predecessors, (76), 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) Word has length 34 [2022-10-16 11:02:05,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:05,521 INFO L225 Difference]: With dead ends: 277 [2022-10-16 11:02:05,521 INFO L226 Difference]: Without dead ends: 276 [2022-10-16 11:02:05,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 48 SyntacticMatches, 13 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 382 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=181, Invalid=1307, Unknown=2, NotChecked=150, Total=1640 [2022-10-16 11:02:05,522 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 58 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 1068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 404 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:05,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 1307 Invalid, 1068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 654 Invalid, 0 Unknown, 404 Unchecked, 0.6s Time] [2022-10-16 11:02:05,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2022-10-16 11:02:05,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 265. [2022-10-16 11:02:05,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 244 states have (on average 1.2704918032786885) internal successors, (310), 264 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 310 transitions. [2022-10-16 11:02:05,553 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 310 transitions. Word has length 34 [2022-10-16 11:02:05,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:05,553 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 310 transitions. [2022-10-16 11:02:05,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.375) internal successors, (76), 33 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:05,554 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 310 transitions. [2022-10-16 11:02:05,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:02:05,554 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:05,555 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] [2022-10-16 11:02:05,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:05,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:05,769 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:02:05,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:05,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1689961549, now seen corresponding path program 1 times [2022-10-16 11:02:05,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:05,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11260110] [2022-10-16 11:02:05,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:05,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:06,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:06,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:06,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11260110] [2022-10-16 11:02:06,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11260110] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:06,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [832457595] [2022-10-16 11:02:06,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:06,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:06,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:06,830 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:02:06,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 11:02:06,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:06,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 36 conjunts are in the unsatisfiable core [2022-10-16 11:02:06,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:06,922 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:02:06,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:06,973 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-10-16 11:02:07,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:07,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2022-10-16 11:02:07,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:07,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-10-16 11:02:07,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:07,820 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 26 [2022-10-16 11:02:08,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:08,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2022-10-16 11:02:08,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:08,096 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:10,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:10,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [832457595] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 11:02:10,383 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 11:02:10,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 37 [2022-10-16 11:02:10,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950840426] [2022-10-16 11:02:10,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 11:02:10,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 11:02:10,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:02:10,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 11:02:10,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=267, Invalid=1139, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 11:02:10,385 INFO L87 Difference]: Start difference. First operand 265 states and 310 transitions. Second operand has 38 states, 37 states have (on average 2.6216216216216215) internal successors, (97), 38 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:12,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:02:12,030 INFO L93 Difference]: Finished difference Result 287 states and 333 transitions. [2022-10-16 11:02:12,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-10-16 11:02:12,031 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.6216216216216215) internal successors, (97), 38 states have internal predecessors, (97), 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) Word has length 35 [2022-10-16 11:02:12,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:02:12,034 INFO L225 Difference]: With dead ends: 287 [2022-10-16 11:02:12,034 INFO L226 Difference]: Without dead ends: 286 [2022-10-16 11:02:12,035 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 56 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 816 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=517, Invalid=2239, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 11:02:12,036 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 172 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 370 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 11:02:12,037 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 847 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 361 Invalid, 0 Unknown, 370 Unchecked, 0.5s Time] [2022-10-16 11:02:12,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2022-10-16 11:02:12,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 268. [2022-10-16 11:02:12,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 247 states have (on average 1.2672064777327936) internal successors, (313), 267 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:12,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 313 transitions. [2022-10-16 11:02:12,082 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 313 transitions. Word has length 35 [2022-10-16 11:02:12,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:02:12,083 INFO L495 AbstractCegarLoop]: Abstraction has 268 states and 313 transitions. [2022-10-16 11:02:12,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.6216216216216215) internal successors, (97), 38 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:02:12,083 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 313 transitions. [2022-10-16 11:02:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-10-16 11:02:12,084 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:02:12,084 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:02:12,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 11:02:12,297 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:12,298 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 11:02:12,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:02:12,299 INFO L85 PathProgramCache]: Analyzing trace with hash 1897981517, now seen corresponding path program 5 times [2022-10-16 11:02:12,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:02:12,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1798635906] [2022-10-16 11:02:12,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:02:12,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:02:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:02:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 8 proven. 39 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:14,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:02:14,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1798635906] [2022-10-16 11:02:14,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1798635906] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 11:02:14,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113667378] [2022-10-16 11:02:14,125 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 11:02:14,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:02:14,125 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:02:14,126 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:02:14,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 11:02:14,232 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-10-16 11:02:14,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 11:02:14,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 52 conjunts are in the unsatisfiable core [2022-10-16 11:02:14,238 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:02:14,250 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-16 11:02:14,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2022-10-16 11:02:14,306 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-16 11:02:14,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:14,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-10-16 11:02:14,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:14,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:14,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:14,760 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-10-16 11:02:15,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,118 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,123 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,128 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-10-16 11:02:15,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:15,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 58 [2022-10-16 11:02:24,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 11:02:24,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:24,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:24,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:24,542 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 56 [2022-10-16 11:02:29,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:29,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 11:02:29,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 19 [2022-10-16 11:02:29,677 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 9 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:02:29,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 11:02:32,882 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_131| Int)) (or (forall ((v_ArrVal_684 Int) (v_ArrVal_681 Int)) (let ((.cse2 (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_131|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_681))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse2))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ v_ArrVal_684 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_684)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (< (+ (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_684)))))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_131|)))) is different from false [2022-10-16 11:04:01,807 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_684 Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_681 Int) (v_ArrVal_679 Int)) (let ((.cse2 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_679) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_131|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_681))) (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse2))) (let ((.cse1 (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< |v_ULTIMATE.start_main_~i~0#1_131| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ v_ArrVal_684 (select (select (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_684)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (< (+ (select .cse2 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_684)))))) is different from false [2022-10-16 11:04:03,862 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_132| Int)) (or (forall ((v_ArrVal_684 Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_681 Int) (v_ArrVal_679 Int)) (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_132|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_679) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_131|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_681))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_684) (< (+ v_ArrVal_684 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_684)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~0#1_131| (+ |v_ULTIMATE.start_main_~i~0#1_132| 1))))))) (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_132|)))) is different from false [2022-10-16 11:04:05,981 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_684 Int) (|v_ULTIMATE.start_main_~i~0#1_132| Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_681 Int) (v_ArrVal_679 Int)) (let ((.cse0 (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_132|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_679) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_131|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_681))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< |v_ULTIMATE.start_main_~i~0#1_132| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_684) (< (+ v_ArrVal_684 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_684)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808) (< |v_ULTIMATE.start_main_~i~0#1_131| (+ |v_ULTIMATE.start_main_~i~0#1_132| 1))))))) is different from false [2022-10-16 11:04:08,067 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_684 Int) (|v_ULTIMATE.start_main_~i~0#1_132| Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_681 Int) (v_ArrVal_679 Int)) (let ((.cse1 (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_132|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_679) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_131|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_681))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse1))) (let ((.cse0 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_684) (< |v_ULTIMATE.start_main_~i~0#1_132| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< |v_ULTIMATE.start_main_~i~0#1_131| (+ |v_ULTIMATE.start_main_~i~0#1_132| 1)) (< (+ v_ArrVal_684 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_684)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808)))))) is different from false [2022-10-16 11:04:10,153 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_133| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_#t~post6#1| 1) |v_ULTIMATE.start_main_~i~0#1_133|)) (forall ((v_ArrVal_684 Int) (|v_ULTIMATE.start_main_~i~0#1_132| Int) (|v_ULTIMATE.start_main_~i~0#1_131| Int) (v_ArrVal_681 Int) (v_ArrVal_679 Int)) (let ((.cse0 (store (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_133|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_132|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_679) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_131|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_681))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse0))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (+ (select .cse0 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) v_ArrVal_684) (< |v_ULTIMATE.start_main_~i~0#1_132| (+ |v_ULTIMATE.start_main_~i~0#1_133| 1)) (< |v_ULTIMATE.start_main_~i~0#1_131| (+ |v_ULTIMATE.start_main_~i~0#1_132| 1)) (< (+ v_ArrVal_684 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_684)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) 9223372036854775808)))))))) is different from false