/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/res1of.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:46:09,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:46:09,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:46:09,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 10:46:09,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 10:46:09,817 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 10:46:09,819 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 10:46:09,836 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 10:46:09,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 10:46:09,839 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 10:46:09,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 10:46:09,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 10:46:09,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:46:09,844 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:46:09,845 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:46:09,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:46:09,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:46:09,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:46:09,851 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:46:09,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:46:09,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:46:09,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:46:09,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:46:09,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:46:09,876 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 10:46:09,879 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 10:46:09,879 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 10:46:09,881 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 10:46:09,881 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 10:46:09,885 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 10:46:09,886 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 10:46:09,887 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 10:46:09,888 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 10:46:09,889 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 10:46:09,891 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 10:46:09,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 10:46:09,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 10:46:09,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 10:46:09,894 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:46:09,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:46:09,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:46:09,897 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 10:46:09,964 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:46:09,964 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:46:09,965 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:46:09,966 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:46:09,966 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:46:09,968 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:46:09,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:46:09,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:46:09,971 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:46:09,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:46:09,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:46:09,972 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:46:09,973 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:46:09,973 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:46:09,974 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:46:09,974 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:46:09,974 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:46:09,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:46:09,975 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:46:09,975 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:46:09,975 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:46:09,976 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:46:09,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:46:09,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:46:09,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:46:09,978 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:46:09,978 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:46:09,978 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:46:09,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:46:09,979 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:46:09,979 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:46:09,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:46:09,980 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:46:09,980 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:46:10,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:46:10,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:46:10,416 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:46:10,417 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:46:10,418 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:46:10,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/res1of.c [2022-10-16 10:46:10,493 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7745d88ac/f377608e63aa4c739f2bfa54755e4878/FLAGd20bd112c [2022-10-16 10:46:11,034 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:46:11,034 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/res1of.c [2022-10-16 10:46:11,050 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7745d88ac/f377608e63aa4c739f2bfa54755e4878/FLAGd20bd112c [2022-10-16 10:46:11,432 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7745d88ac/f377608e63aa4c739f2bfa54755e4878 [2022-10-16 10:46:11,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:46:11,443 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:46:11,445 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:46:11,445 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:46:11,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:46:11,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35727b75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11, skipping insertion in model container [2022-10-16 10:46:11,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,462 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:46:11,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:46:11,689 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/res1of.c[589,602] [2022-10-16 10:46:11,712 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:46:11,720 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:46:11,734 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/res1of.c[589,602] [2022-10-16 10:46:11,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:46:11,762 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:46:11,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11 WrapperNode [2022-10-16 10:46:11,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:46:11,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:46:11,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:46:11,764 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:46:11,773 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,809 INFO L138 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 100 [2022-10-16 10:46:11,810 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:46:11,811 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:46:11,811 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:46:11,811 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:46:11,821 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,822 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,836 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,838 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:46:11,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:46:11,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:46:11,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:46:11,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (1/1) ... [2022-10-16 10:46:11,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:46:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:11,878 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 10:46:11,902 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 10:46:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:46:11,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:46:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:46:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:46:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:46:11,941 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:46:11,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:46:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:46:11,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:46:12,016 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:46:12,018 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:46:12,239 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:46:12,247 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:46:12,248 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-16 10:46:12,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:46:12 BoogieIcfgContainer [2022-10-16 10:46:12,250 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:46:12,254 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:46:12,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:46:12,304 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:46:12,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:46:11" (1/3) ... [2022-10-16 10:46:12,306 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3211d71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:46:12, skipping insertion in model container [2022-10-16 10:46:12,306 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:46:11" (2/3) ... [2022-10-16 10:46:12,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3211d71c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:46:12, skipping insertion in model container [2022-10-16 10:46:12,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:46:12" (3/3) ... [2022-10-16 10:46:12,312 INFO L112 eAbstractionObserver]: Analyzing ICFG res1of.c [2022-10-16 10:46:12,373 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:46:12,374 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 10:46:12,444 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:46:12,455 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;@cc7534d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:46:12,456 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 10:46:12,461 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 46 states have internal predecessors, (57), 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 10:46:12,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:46:12,469 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:12,470 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:46:12,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:12,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:12,479 INFO L85 PathProgramCache]: Analyzing trace with hash 177631151, now seen corresponding path program 1 times [2022-10-16 10:46:12,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:12,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221519225] [2022-10-16 10:46:12,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:12,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:12,773 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 10:46:12,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:12,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221519225] [2022-10-16 10:46:12,776 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221519225] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:46:12,776 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:46:12,776 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:46:12,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268820817] [2022-10-16 10:46:12,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:46:12,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 10:46:12,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:12,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 10:46:12,839 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:46:12,842 INFO L87 Difference]: Start difference. First operand has 47 states, 34 states have (on average 1.6764705882352942) internal successors, (57), 46 states have internal predecessors, (57), 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 10:46:12,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:12,876 INFO L93 Difference]: Finished difference Result 90 states and 108 transitions. [2022-10-16 10:46:12,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 10:46:12,879 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 10:46:12,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:12,889 INFO L225 Difference]: With dead ends: 90 [2022-10-16 10:46:12,891 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 10:46:12,896 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 10:46:12,902 INFO L413 NwaCegarLoop]: 51 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, 51 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 10:46:12,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:46:12,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 10:46:12,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-10-16 10:46:12,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 28 states have (on average 1.5357142857142858) internal successors, (43), 39 states have internal predecessors, (43), 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 10:46:12,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-10-16 10:46:12,954 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 8 [2022-10-16 10:46:12,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:12,955 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-10-16 10:46:12,956 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 10:46:12,956 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-10-16 10:46:12,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 10:46:12,957 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:12,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:46:12,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:46:12,958 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:12,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:12,959 INFO L85 PathProgramCache]: Analyzing trace with hash 179478193, now seen corresponding path program 1 times [2022-10-16 10:46:12,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:12,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595715650] [2022-10-16 10:46:12,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:12,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:13,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:13,199 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 10:46:13,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:13,199 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595715650] [2022-10-16 10:46:13,200 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595715650] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:46:13,200 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:46:13,200 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:46:13,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907338145] [2022-10-16 10:46:13,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:46:13,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:46:13,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:13,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:46:13,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:46:13,204 INFO L87 Difference]: Start difference. First operand 40 states and 43 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 10:46:13,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:13,339 INFO L93 Difference]: Finished difference Result 75 states and 81 transitions. [2022-10-16 10:46:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:46:13,340 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 10:46:13,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:13,342 INFO L225 Difference]: With dead ends: 75 [2022-10-16 10:46:13,342 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 10:46:13,342 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 10:46:13,349 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 29 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:13,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 80 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:46:13,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 10:46:13,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 44. [2022-10-16 10:46:13,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 32 states have (on average 1.5) internal successors, (48), 43 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 10:46:13,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 48 transitions. [2022-10-16 10:46:13,370 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 48 transitions. Word has length 8 [2022-10-16 10:46:13,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:13,371 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 48 transitions. [2022-10-16 10:46:13,371 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 10:46:13,372 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 48 transitions. [2022-10-16 10:46:13,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:46:13,373 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:13,374 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:46:13,374 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:46:13,375 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:13,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:13,379 INFO L85 PathProgramCache]: Analyzing trace with hash 1268805299, now seen corresponding path program 1 times [2022-10-16 10:46:13,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:13,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425913411] [2022-10-16 10:46:13,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:13,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:13,483 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 10:46:13,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:13,484 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425913411] [2022-10-16 10:46:13,484 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425913411] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:46:13,484 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:46:13,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 10:46:13,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368488294] [2022-10-16 10:46:13,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:46:13,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:46:13,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:13,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:46:13,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:46:13,487 INFO L87 Difference]: Start difference. First operand 44 states and 48 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 10:46:13,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:13,548 INFO L93 Difference]: Finished difference Result 99 states and 107 transitions. [2022-10-16 10:46:13,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:46:13,549 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 10:46:13,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:13,550 INFO L225 Difference]: With dead ends: 99 [2022-10-16 10:46:13,550 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 10:46:13,551 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 10:46:13,552 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 66 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:13,553 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 52 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:46:13,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 10:46:13,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 46. [2022-10-16 10:46:13,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 34 states have (on average 1.4411764705882353) internal successors, (49), 45 states have internal predecessors, (49), 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 10:46:13,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 49 transitions. [2022-10-16 10:46:13,562 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 49 transitions. Word has length 9 [2022-10-16 10:46:13,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:13,562 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 49 transitions. [2022-10-16 10:46:13,562 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 10:46:13,563 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 49 transitions. [2022-10-16 10:46:13,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:46:13,563 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:13,563 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:46:13,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:46:13,564 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:13,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:13,565 INFO L85 PathProgramCache]: Analyzing trace with hash 504169901, now seen corresponding path program 1 times [2022-10-16 10:46:13,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:13,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129684222] [2022-10-16 10:46:13,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:13,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:13,756 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 10:46:13,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:13,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129684222] [2022-10-16 10:46:13,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1129684222] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:13,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244490784] [2022-10-16 10:46:13,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:13,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:13,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:13,767 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 10:46:13,774 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 10:46:13,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:13,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:46:13,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:13,915 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 10:46:13,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:13,968 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 10:46:13,968 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244490784] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:13,969 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:13,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:46:13,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726181653] [2022-10-16 10:46:13,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:13,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:46:13,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:13,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:46:13,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:46:13,972 INFO L87 Difference]: Start difference. First operand 46 states and 49 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 10:46:14,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:14,156 INFO L93 Difference]: Finished difference Result 89 states and 97 transitions. [2022-10-16 10:46:14,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:46:14,157 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 10:46:14,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:14,160 INFO L225 Difference]: With dead ends: 89 [2022-10-16 10:46:14,160 INFO L226 Difference]: Without dead ends: 88 [2022-10-16 10:46:14,161 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 10:46:14,162 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 41 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 232 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:14,163 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 232 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:46:14,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-10-16 10:46:14,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 57. [2022-10-16 10:46:14,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 45 states have (on average 1.4444444444444444) internal successors, (65), 56 states have internal predecessors, (65), 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 10:46:14,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 65 transitions. [2022-10-16 10:46:14,173 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 65 transitions. Word has length 12 [2022-10-16 10:46:14,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:14,174 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 65 transitions. [2022-10-16 10:46:14,174 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 10:46:14,174 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 65 transitions. [2022-10-16 10:46:14,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 10:46:14,175 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:14,175 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:46:14,212 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 10:46:14,391 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 10:46:14,392 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:14,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:14,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1550653641, now seen corresponding path program 1 times [2022-10-16 10:46:14,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:14,394 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747907135] [2022-10-16 10:46:14,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:14,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:14,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:14,987 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 10:46:14,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:14,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747907135] [2022-10-16 10:46:14,988 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747907135] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:14,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2132556550] [2022-10-16 10:46:14,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:14,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:14,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:14,990 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 10:46:14,996 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 10:46:15,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:15,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 19 conjunts are in the unsatisfiable core [2022-10-16 10:46:15,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:15,103 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 10:46:15,115 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 10:46:15,151 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 10:46:15,261 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 10:46:15,275 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 10:46:15,275 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:15,426 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 10:46:15,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2132556550] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:15,428 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:15,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-16 10:46:15,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097976877] [2022-10-16 10:46:15,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:15,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 10:46:15,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:15,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 10:46:15,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=133, Unknown=0, NotChecked=0, Total=182 [2022-10-16 10:46:15,434 INFO L87 Difference]: Start difference. First operand 57 states and 65 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 10:46:15,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:15,648 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2022-10-16 10:46:15,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 10:46:15,650 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 10:46:15,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:15,651 INFO L225 Difference]: With dead ends: 73 [2022-10-16 10:46:15,652 INFO L226 Difference]: Without dead ends: 71 [2022-10-16 10:46:15,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:46:15,660 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 56 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 24 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:15,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 161 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 82 Invalid, 0 Unknown, 24 Unchecked, 0.1s Time] [2022-10-16 10:46:15,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2022-10-16 10:46:15,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 59. [2022-10-16 10:46:15,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 47 states have (on average 1.425531914893617) internal successors, (67), 58 states have internal predecessors, (67), 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 10:46:15,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 67 transitions. [2022-10-16 10:46:15,683 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 67 transitions. Word has length 13 [2022-10-16 10:46:15,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:15,684 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 67 transitions. [2022-10-16 10:46:15,684 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 10:46:15,684 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 67 transitions. [2022-10-16 10:46:15,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 10:46:15,685 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:15,685 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:46:15,728 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 10:46:15,900 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 10:46:15,901 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:15,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:15,902 INFO L85 PathProgramCache]: Analyzing trace with hash -1550602195, now seen corresponding path program 1 times [2022-10-16 10:46:15,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:15,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577854949] [2022-10-16 10:46:15,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:15,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:15,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:15,995 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 10:46:15,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:15,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577854949] [2022-10-16 10:46:15,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577854949] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:15,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1571456746] [2022-10-16 10:46:15,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:15,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:15,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:15,998 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 10:46:16,024 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 10:46:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:16,066 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:46:16,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:16,100 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 10:46:16,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:46:16,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1571456746] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:46:16,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:46:16,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:46:16,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840116364] [2022-10-16 10:46:16,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:46:16,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:46:16,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:16,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:46:16,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:46:16,104 INFO L87 Difference]: Start difference. First operand 59 states and 67 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 10:46:16,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:16,186 INFO L93 Difference]: Finished difference Result 79 states and 87 transitions. [2022-10-16 10:46:16,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:46:16,187 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 10:46:16,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:16,188 INFO L225 Difference]: With dead ends: 79 [2022-10-16 10:46:16,188 INFO L226 Difference]: Without dead ends: 78 [2022-10-16 10:46:16,188 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 10:46:16,190 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 30 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:16,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 123 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:46:16,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-16 10:46:16,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 58. [2022-10-16 10:46:16,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 47 states have (on average 1.3617021276595744) internal successors, (64), 57 states have internal predecessors, (64), 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 10:46:16,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 64 transitions. [2022-10-16 10:46:16,199 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 64 transitions. Word has length 13 [2022-10-16 10:46:16,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:16,200 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 64 transitions. [2022-10-16 10:46:16,200 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 10:46:16,200 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 64 transitions. [2022-10-16 10:46:16,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:46:16,201 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:16,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:46:16,241 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 10:46:16,414 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 10:46:16,415 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:16,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:16,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1145690293, now seen corresponding path program 1 times [2022-10-16 10:46:16,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:16,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406701046] [2022-10-16 10:46:16,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:16,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:16,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:16,470 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 10:46:16,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:16,471 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406701046] [2022-10-16 10:46:16,471 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [406701046] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:46:16,471 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:46:16,471 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:46:16,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558670905] [2022-10-16 10:46:16,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:46:16,472 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:46:16,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:16,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:46:16,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:46:16,473 INFO L87 Difference]: Start difference. First operand 58 states and 64 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 10:46:16,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:16,524 INFO L93 Difference]: Finished difference Result 78 states and 84 transitions. [2022-10-16 10:46:16,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:46:16,525 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 10:46:16,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:16,526 INFO L225 Difference]: With dead ends: 78 [2022-10-16 10:46:16,526 INFO L226 Difference]: Without dead ends: 76 [2022-10-16 10:46:16,526 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 10:46:16,527 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 20 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:16,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 83 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:46:16,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-10-16 10:46:16,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 61. [2022-10-16 10:46:16,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 50 states have (on average 1.34) internal successors, (67), 60 states have internal predecessors, (67), 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 10:46:16,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 67 transitions. [2022-10-16 10:46:16,535 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 67 transitions. Word has length 16 [2022-10-16 10:46:16,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:16,536 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 67 transitions. [2022-10-16 10:46:16,536 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 10:46:16,536 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 67 transitions. [2022-10-16 10:46:16,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 10:46:16,537 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:16,537 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 10:46:16,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 10:46:16,538 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:16,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:16,538 INFO L85 PathProgramCache]: Analyzing trace with hash -845503427, now seen corresponding path program 1 times [2022-10-16 10:46:16,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:16,539 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736911258] [2022-10-16 10:46:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:16,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:16,687 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 10:46:16,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:16,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736911258] [2022-10-16 10:46:16,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736911258] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:16,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105784041] [2022-10-16 10:46:16,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:16,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:16,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:16,692 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 10:46:16,695 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 10:46:16,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:16,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:46:16,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:16,865 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 10:46:16,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:16,939 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 10:46:16,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105784041] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:16,940 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:16,940 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:46:16,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841094379] [2022-10-16 10:46:16,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:16,941 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:46:16,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:16,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:46:16,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:46:16,942 INFO L87 Difference]: Start difference. First operand 61 states and 67 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 10:46:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:17,167 INFO L93 Difference]: Finished difference Result 147 states and 157 transitions. [2022-10-16 10:46:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:46:17,167 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 10:46:17,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:17,168 INFO L225 Difference]: With dead ends: 147 [2022-10-16 10:46:17,168 INFO L226 Difference]: Without dead ends: 118 [2022-10-16 10:46:17,169 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 26 SyntacticMatches, 5 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:46:17,170 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 206 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 206 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:17,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [206 Valid, 217 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:46:17,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-16 10:46:17,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 69. [2022-10-16 10:46:17,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 58 states have (on average 1.293103448275862) internal successors, (75), 68 states have internal predecessors, (75), 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 10:46:17,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 75 transitions. [2022-10-16 10:46:17,179 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 75 transitions. Word has length 19 [2022-10-16 10:46:17,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:17,180 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 75 transitions. [2022-10-16 10:46:17,180 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 10:46:17,180 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 75 transitions. [2022-10-16 10:46:17,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 10:46:17,181 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:17,181 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 10:46:17,222 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 10:46:17,395 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 10:46:17,396 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:17,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:17,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1589199155, now seen corresponding path program 1 times [2022-10-16 10:46:17,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:17,397 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360934490] [2022-10-16 10:46:17,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:17,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:17,459 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 10:46:17,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:17,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360934490] [2022-10-16 10:46:17,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360934490] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:46:17,460 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:46:17,460 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:46:17,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957934035] [2022-10-16 10:46:17,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:46:17,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:46:17,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:17,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:46:17,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:46:17,462 INFO L87 Difference]: Start difference. First operand 69 states and 75 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 10:46:17,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:17,517 INFO L93 Difference]: Finished difference Result 84 states and 90 transitions. [2022-10-16 10:46:17,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:46:17,518 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 10:46:17,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:17,522 INFO L225 Difference]: With dead ends: 84 [2022-10-16 10:46:17,522 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 10:46:17,523 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 10:46:17,527 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 20 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:17,528 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 83 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:46:17,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 10:46:17,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 72. [2022-10-16 10:46:17,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 61 states have (on average 1.278688524590164) internal successors, (78), 71 states have internal predecessors, (78), 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 10:46:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 78 transitions. [2022-10-16 10:46:17,546 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 78 transitions. Word has length 22 [2022-10-16 10:46:17,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:17,547 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 78 transitions. [2022-10-16 10:46:17,547 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 10:46:17,547 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 78 transitions. [2022-10-16 10:46:17,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:46:17,551 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:17,551 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 10:46:17,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 10:46:17,552 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:17,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:17,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1489192897, now seen corresponding path program 2 times [2022-10-16 10:46:17,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:17,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571781064] [2022-10-16 10:46:17,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:17,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:18,687 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 10:46:18,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:18,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1571781064] [2022-10-16 10:46:18,688 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1571781064] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:18,688 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [225095670] [2022-10-16 10:46:18,689 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:46:18,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:18,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:18,690 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 10:46:18,715 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 10:46:18,764 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:46:18,764 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:46:18,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 10:46:18,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:18,785 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 10:46:18,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:18,836 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 10:46:18,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:18,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:18,989 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 10:46:19,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:19,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:46:19,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:19,268 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 10:46:19,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:19,464 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 10:46:19,499 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 10:46:19,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:20,640 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 10:46:20,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [225095670] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:20,641 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:20,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2022-10-16 10:46:20,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704255378] [2022-10-16 10:46:20,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:20,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-16 10:46:20,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:20,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-16 10:46:20,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=176, Invalid=1084, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:46:20,644 INFO L87 Difference]: Start difference. First operand 72 states and 78 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 10:46:21,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:21,966 INFO L93 Difference]: Finished difference Result 92 states and 101 transitions. [2022-10-16 10:46:21,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-16 10:46:21,967 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 10:46:21,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:21,968 INFO L225 Difference]: With dead ends: 92 [2022-10-16 10:46:21,968 INFO L226 Difference]: Without dead ends: 91 [2022-10-16 10:46:21,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 500 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=414, Invalid=2342, Unknown=0, NotChecked=0, Total=2756 [2022-10-16 10:46:21,970 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 108 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 242 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:21,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 466 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 471 Invalid, 0 Unknown, 242 Unchecked, 0.4s Time] [2022-10-16 10:46:21,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2022-10-16 10:46:21,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 74. [2022-10-16 10:46:21,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 63 states have (on average 1.2857142857142858) internal successors, (81), 73 states have internal predecessors, (81), 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 10:46:21,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 81 transitions. [2022-10-16 10:46:21,980 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 81 transitions. Word has length 23 [2022-10-16 10:46:21,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:21,980 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 81 transitions. [2022-10-16 10:46:21,980 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 10:46:21,981 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 81 transitions. [2022-10-16 10:46:21,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:46:21,982 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:21,982 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 10:46:22,023 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 10:46:22,195 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 10:46:22,195 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:22,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:22,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1079660375, now seen corresponding path program 1 times [2022-10-16 10:46:22,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:22,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602319397] [2022-10-16 10:46:22,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:22,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:22,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:22,654 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 10:46:22,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:22,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602319397] [2022-10-16 10:46:22,655 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602319397] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:22,655 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833815942] [2022-10-16 10:46:22,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:22,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:22,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:22,657 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 10:46:22,667 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 10:46:22,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:22,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 10:46:22,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:22,739 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 10:46:22,768 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 10:46:22,958 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 10:46:23,157 INFO L356 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-10-16 10:46:23,158 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 10:46:23,188 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 10:46:23,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:27,742 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_271 Int)) (or (< 0 (+ v_ArrVal_271 (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_271)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 9223372036854775809)) (< (+ v_ArrVal_271 9223372036854775808) 0))) is different from false [2022-10-16 10:46:27,804 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 10:46:27,891 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 5 not checked. [2022-10-16 10:46:27,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833815942] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:27,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:27,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 23 [2022-10-16 10:46:27,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569100264] [2022-10-16 10:46:27,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:27,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-10-16 10:46:27,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:27,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-10-16 10:46:27,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=4, NotChecked=42, Total=552 [2022-10-16 10:46:27,894 INFO L87 Difference]: Start difference. First operand 74 states and 81 transitions. Second operand has 24 states, 23 states have (on average 2.347826086956522) internal successors, (54), 24 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 10:46:28,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:28,356 INFO L93 Difference]: Finished difference Result 107 states and 116 transitions. [2022-10-16 10:46:28,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 10:46:28,357 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 2.347826086956522) internal successors, (54), 24 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 24 [2022-10-16 10:46:28,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:28,358 INFO L225 Difference]: With dead ends: 107 [2022-10-16 10:46:28,358 INFO L226 Difference]: Without dead ends: 106 [2022-10-16 10:46:28,359 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 36 SyntacticMatches, 7 SemanticMatches, 27 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=121, Invalid=635, Unknown=4, NotChecked=52, Total=812 [2022-10-16 10:46:28,360 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 61 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 521 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 148 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:28,360 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 532 Invalid, 521 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 363 Invalid, 0 Unknown, 148 Unchecked, 0.3s Time] [2022-10-16 10:46:28,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2022-10-16 10:46:28,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 84. [2022-10-16 10:46:28,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 73 states have (on average 1.2602739726027397) internal successors, (92), 83 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 10:46:28,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 92 transitions. [2022-10-16 10:46:28,369 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 92 transitions. Word has length 24 [2022-10-16 10:46:28,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:28,370 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 92 transitions. [2022-10-16 10:46:28,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 2.347826086956522) internal successors, (54), 24 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 10:46:28,370 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 92 transitions. [2022-10-16 10:46:28,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:46:28,371 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:28,372 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 10:46:28,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:46:28,586 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 10:46:28,587 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:28,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:28,588 INFO L85 PathProgramCache]: Analyzing trace with hash -897513823, now seen corresponding path program 2 times [2022-10-16 10:46:28,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:28,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620268055] [2022-10-16 10:46:28,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:28,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:28,737 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 10:46:28,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:28,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620268055] [2022-10-16 10:46:28,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620268055] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:28,738 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345983385] [2022-10-16 10:46:28,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:46:28,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:28,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:28,740 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 10:46:28,763 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 10:46:28,810 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:46:28,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:46:28,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:46:28,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:28,867 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 10:46:28,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:28,914 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 10:46:28,915 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345983385] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:28,915 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:28,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 14 [2022-10-16 10:46:28,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014289147] [2022-10-16 10:46:28,915 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:28,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:46:28,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:28,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:46:28,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:46:28,917 INFO L87 Difference]: Start difference. First operand 84 states and 92 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 10:46:29,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:29,131 INFO L93 Difference]: Finished difference Result 103 states and 114 transitions. [2022-10-16 10:46:29,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:46:29,132 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 10:46:29,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:29,133 INFO L225 Difference]: With dead ends: 103 [2022-10-16 10:46:29,133 INFO L226 Difference]: Without dead ends: 102 [2022-10-16 10:46:29,133 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 10:46:29,134 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 148 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:29,134 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 131 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:46:29,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2022-10-16 10:46:29,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 77. [2022-10-16 10:46:29,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 67 states have (on average 1.2537313432835822) internal successors, (84), 76 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 10:46:29,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2022-10-16 10:46:29,159 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 24 [2022-10-16 10:46:29,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:29,160 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2022-10-16 10:46:29,160 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 10:46:29,160 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2022-10-16 10:46:29,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 10:46:29,161 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:29,161 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 10:46:29,208 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 10:46:29,375 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 10:46:29,375 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:29,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:29,376 INFO L85 PathProgramCache]: Analyzing trace with hash -248684241, now seen corresponding path program 1 times [2022-10-16 10:46:29,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:29,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41857655] [2022-10-16 10:46:29,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:29,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:29,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:29,449 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 10:46:29,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:29,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41857655] [2022-10-16 10:46:29,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41857655] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:29,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [40795224] [2022-10-16 10:46:29,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:29,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:29,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:29,451 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 10:46:29,471 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 10:46:29,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:29,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:46:29,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:29,599 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 10:46:29,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:29,675 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 10:46:29,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [40795224] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:29,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:29,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 15 [2022-10-16 10:46:29,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374237683] [2022-10-16 10:46:29,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:29,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 10:46:29,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:29,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 10:46:29,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:46:29,678 INFO L87 Difference]: Start difference. First operand 77 states and 84 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 10:46:29,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:29,917 INFO L93 Difference]: Finished difference Result 137 states and 148 transitions. [2022-10-16 10:46:29,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:46:29,918 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 10:46:29,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:29,919 INFO L225 Difference]: With dead ends: 137 [2022-10-16 10:46:29,919 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 10:46:29,920 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=111, Invalid=441, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:46:29,921 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 152 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:29,921 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 222 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:46:29,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 10:46:29,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 86. [2022-10-16 10:46:29,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 76 states have (on average 1.236842105263158) internal successors, (94), 85 states have internal predecessors, (94), 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 10:46:29,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 94 transitions. [2022-10-16 10:46:29,931 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 94 transitions. Word has length 26 [2022-10-16 10:46:29,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:29,932 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 94 transitions. [2022-10-16 10:46:29,932 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 10:46:29,932 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 94 transitions. [2022-10-16 10:46:29,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 10:46:29,933 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:29,934 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 10:46:29,976 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 10:46:30,149 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 10:46:30,149 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:30,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:30,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1828467691, now seen corresponding path program 1 times [2022-10-16 10:46:30,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:30,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795814948] [2022-10-16 10:46:30,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:30,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:30,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:30,225 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 10:46:30,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:30,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795814948] [2022-10-16 10:46:30,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795814948] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:30,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1695247367] [2022-10-16 10:46:30,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:30,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:30,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:30,228 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 10:46:30,248 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 10:46:30,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:30,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:46:30,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:30,332 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 10:46:30,332 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:30,366 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 10:46:30,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1695247367] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:30,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:30,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:46:30,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512436708] [2022-10-16 10:46:30,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:30,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:46:30,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:30,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:46:30,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:46:30,368 INFO L87 Difference]: Start difference. First operand 86 states and 94 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 10:46:30,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:30,503 INFO L93 Difference]: Finished difference Result 124 states and 136 transitions. [2022-10-16 10:46:30,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:46:30,504 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 10:46:30,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:30,505 INFO L225 Difference]: With dead ends: 124 [2022-10-16 10:46:30,505 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 10:46:30,506 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 10:46:30,507 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 99 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:30,507 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 129 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:46:30,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 10:46:30,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 101. [2022-10-16 10:46:30,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 91 states have (on average 1.2967032967032968) internal successors, (118), 100 states have internal predecessors, (118), 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 10:46:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2022-10-16 10:46:30,518 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 26 [2022-10-16 10:46:30,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:30,518 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2022-10-16 10:46:30,518 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 10:46:30,518 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2022-10-16 10:46:30,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:46:30,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:30,519 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 10:46:30,558 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 10:46:30,733 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 10:46:30,733 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:30,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:30,734 INFO L85 PathProgramCache]: Analyzing trace with hash 880671773, now seen corresponding path program 1 times [2022-10-16 10:46:30,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:30,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120041123] [2022-10-16 10:46:30,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:30,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:31,501 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 10:46:31,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:31,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120041123] [2022-10-16 10:46:31,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120041123] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:31,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978981363] [2022-10-16 10:46:31,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:31,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:31,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:31,504 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 10:46:31,526 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 10:46:31,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:31,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 42 conjunts are in the unsatisfiable core [2022-10-16 10:46:31,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:31,607 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-10-16 10:46:31,608 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 23 treesize of output 19 [2022-10-16 10:46:31,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 10:46:31,659 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 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 10:46:31,908 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 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 10:46:32,074 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2022-10-16 10:46:32,301 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 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 10:46:32,323 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 10:46:32,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:33,079 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 10:46:33,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978981363] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:33,079 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:33,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-10-16 10:46:33,080 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950078315] [2022-10-16 10:46:33,080 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:33,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 10:46:33,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:33,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 10:46:33,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=677, Unknown=0, NotChecked=0, Total=812 [2022-10-16 10:46:33,082 INFO L87 Difference]: Start difference. First operand 101 states and 118 transitions. Second operand has 29 states, 28 states have (on average 2.607142857142857) internal successors, (73), 29 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 10:46:33,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:33,623 INFO L93 Difference]: Finished difference Result 121 states and 141 transitions. [2022-10-16 10:46:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:46:33,624 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.607142857142857) internal successors, (73), 29 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 10:46:33,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:33,625 INFO L225 Difference]: With dead ends: 121 [2022-10-16 10:46:33,625 INFO L226 Difference]: Without dead ends: 120 [2022-10-16 10:46:33,626 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=240, Invalid=1092, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 10:46:33,627 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 48 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 163 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:33,627 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 344 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 94 Invalid, 0 Unknown, 163 Unchecked, 0.1s Time] [2022-10-16 10:46:33,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2022-10-16 10:46:33,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 114. [2022-10-16 10:46:33,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 104 states have (on average 1.2884615384615385) internal successors, (134), 113 states have internal predecessors, (134), 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 10:46:33,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 134 transitions. [2022-10-16 10:46:33,641 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 134 transitions. Word has length 27 [2022-10-16 10:46:33,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:33,641 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 134 transitions. [2022-10-16 10:46:33,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.607142857142857) internal successors, (73), 29 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 10:46:33,642 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 134 transitions. [2022-10-16 10:46:33,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:46:33,642 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:33,642 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 10:46:33,668 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 10:46:33,852 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 10:46:33,852 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:33,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:33,854 INFO L85 PathProgramCache]: Analyzing trace with hash 847923653, now seen corresponding path program 1 times [2022-10-16 10:46:33,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:33,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021485705] [2022-10-16 10:46:33,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:33,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:33,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:33,939 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 10:46:33,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:33,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021485705] [2022-10-16 10:46:33,939 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021485705] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:33,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954372828] [2022-10-16 10:46:33,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:33,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:33,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:33,941 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 10:46:33,963 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 10:46:34,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:34,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:46:34,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:34,043 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 10:46:34,043 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:46:34,044 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954372828] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:46:34,044 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:46:34,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 10:46:34,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880139145] [2022-10-16 10:46:34,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:46:34,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:46:34,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:34,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:46:34,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:46:34,046 INFO L87 Difference]: Start difference. First operand 114 states and 134 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 10:46:34,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:34,113 INFO L93 Difference]: Finished difference Result 124 states and 144 transitions. [2022-10-16 10:46:34,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:46:34,114 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 10:46:34,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:34,115 INFO L225 Difference]: With dead ends: 124 [2022-10-16 10:46:34,115 INFO L226 Difference]: Without dead ends: 123 [2022-10-16 10:46:34,115 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 10:46:34,116 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 24 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:34,117 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 122 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:46:34,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2022-10-16 10:46:34,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 113. [2022-10-16 10:46:34,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 104 states have (on average 1.2596153846153846) internal successors, (131), 112 states have internal predecessors, (131), 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 10:46:34,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 131 transitions. [2022-10-16 10:46:34,130 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 131 transitions. Word has length 27 [2022-10-16 10:46:34,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:34,130 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 131 transitions. [2022-10-16 10:46:34,130 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 10:46:34,131 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 131 transitions. [2022-10-16 10:46:34,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:46:34,131 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:34,131 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 10:46:34,171 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 10:46:34,345 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 10:46:34,345 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:34,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:34,346 INFO L85 PathProgramCache]: Analyzing trace with hash 1531021301, now seen corresponding path program 1 times [2022-10-16 10:46:34,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:34,346 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403924180] [2022-10-16 10:46:34,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:34,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:34,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:34,695 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 10:46:34,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:34,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403924180] [2022-10-16 10:46:34,695 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403924180] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:34,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945201056] [2022-10-16 10:46:34,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:34,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:34,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:34,697 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 10:46:34,706 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 10:46:34,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:34,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-16 10:46:34,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:34,831 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 10:46:34,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:34,911 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 10:46:35,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:35,006 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 10:46:35,026 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 10:46:35,026 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:35,214 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 10:46:35,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945201056] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:35,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:35,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 18 [2022-10-16 10:46:35,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410406536] [2022-10-16 10:46:35,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:35,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:46:35,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:35,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:46:35,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:46:35,217 INFO L87 Difference]: Start difference. First operand 113 states and 131 transitions. Second operand has 19 states, 18 states have (on average 4.222222222222222) internal successors, (76), 19 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 10:46:35,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:35,544 INFO L93 Difference]: Finished difference Result 123 states and 141 transitions. [2022-10-16 10:46:35,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 10:46:35,545 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.222222222222222) internal successors, (76), 19 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 10:46:35,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:35,546 INFO L225 Difference]: With dead ends: 123 [2022-10-16 10:46:35,546 INFO L226 Difference]: Without dead ends: 122 [2022-10-16 10:46:35,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=160, Invalid=392, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:46:35,548 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 128 mSDsluCounter, 160 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:35,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 189 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 139 Invalid, 0 Unknown, 15 Unchecked, 0.2s Time] [2022-10-16 10:46:35,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-16 10:46:35,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 116. [2022-10-16 10:46:35,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 107 states have (on average 1.2616822429906542) internal successors, (135), 115 states have internal predecessors, (135), 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 10:46:35,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 135 transitions. [2022-10-16 10:46:35,569 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 135 transitions. Word has length 28 [2022-10-16 10:46:35,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:35,570 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 135 transitions. [2022-10-16 10:46:35,570 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.222222222222222) internal successors, (76), 19 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 10:46:35,570 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 135 transitions. [2022-10-16 10:46:35,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:46:35,571 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:35,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:46:35,614 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 10:46:35,784 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 10:46:35,785 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:35,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:35,786 INFO L85 PathProgramCache]: Analyzing trace with hash -190144603, now seen corresponding path program 2 times [2022-10-16 10:46:35,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:35,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [158745776] [2022-10-16 10:46:35,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:35,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:36,329 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:46:36,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:36,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [158745776] [2022-10-16 10:46:36,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [158745776] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:36,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1027374291] [2022-10-16 10:46:36,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:46:36,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:36,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:36,331 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 10:46:36,333 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 10:46:36,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:46:36,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:46:36,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 33 conjunts are in the unsatisfiable core [2022-10-16 10:46:36,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:36,414 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 10:46:36,440 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 10:46:36,488 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:46:36,489 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 1 case distinctions, treesize of input 25 treesize of output 24 [2022-10-16 10:46:37,084 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 10:46:37,200 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 10:46:37,245 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:46:37,245 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:44,110 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_558 Int)) (or (< (+ v_ArrVal_558 9223372036854775808) 0) (< 0 (+ v_ArrVal_558 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_558))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))))) is different from false [2022-10-16 10:46:44,152 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 742 treesize of output 718 [2022-10-16 10:46:44,737 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 9 not checked. [2022-10-16 10:46:44,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1027374291] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:44,738 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:44,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11, 11] total 25 [2022-10-16 10:46:44,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816576452] [2022-10-16 10:46:44,739 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:44,739 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 10:46:44,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:44,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 10:46:44,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=504, Unknown=5, NotChecked=46, Total=650 [2022-10-16 10:46:44,740 INFO L87 Difference]: Start difference. First operand 116 states and 135 transitions. Second operand has 26 states, 25 states have (on average 2.44) internal successors, (61), 26 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 10:46:45,849 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (= (select .cse0 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_558 Int)) (or (< (+ v_ArrVal_558 9223372036854775808) 0) (< 0 (+ v_ArrVal_558 9223372036854775809 (select (select (let ((.cse1 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ (* |ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse1 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_558))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)))))) (<= 1 |c_ULTIMATE.start_main_~i~0#1|) (<= |c_ULTIMATE.start_main_~i~0#1| 1))) is different from false [2022-10-16 10:46:47,181 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_558 Int)) (or (< (+ v_ArrVal_558 9223372036854775808) 0) (< 0 (+ v_ArrVal_558 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 (+ (* |ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_558))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))))) (<= 1 |c_ULTIMATE.start_main_#t~post7#1|) (= (select .cse1 .cse2) 1))) is different from false [2022-10-16 10:46:48,219 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse2 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4))) (and (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (forall ((|ULTIMATE.start_main_~i~0#1| Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_558 Int)) (or (< (+ v_ArrVal_558 9223372036854775808) 0) (< 0 (+ v_ArrVal_558 9223372036854775809 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 (+ (* |ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) 1)))) (store .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~#sum~0#1.base|) |ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_558))) |c_ULTIMATE.start_main_~a~0#1.base|) .cse2))))) (= (select .cse1 .cse2) 1) (not (= (* |c_ULTIMATE.start_main_~i~0#1| 4) 4)))) is different from false [2022-10-16 10:46:48,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:48,572 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2022-10-16 10:46:48,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:46:48,573 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 2.44) internal successors, (61), 26 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 28 [2022-10-16 10:46:48,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:48,574 INFO L225 Difference]: With dead ends: 137 [2022-10-16 10:46:48,574 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 10:46:48,575 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 39 SyntacticMatches, 4 SemanticMatches, 31 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=140, Invalid=680, Unknown=8, NotChecked=228, Total=1056 [2022-10-16 10:46:48,576 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 135 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 487 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 487 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 125 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:48,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 568 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 487 Invalid, 0 Unknown, 125 Unchecked, 0.3s Time] [2022-10-16 10:46:48,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 10:46:48,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 102. [2022-10-16 10:46:48,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 93 states have (on average 1.2688172043010753) internal successors, (118), 101 states have internal predecessors, (118), 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 10:46:48,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2022-10-16 10:46:48,589 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 28 [2022-10-16 10:46:48,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:48,590 INFO L495 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2022-10-16 10:46:48,590 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 2.44) internal successors, (61), 26 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 10:46:48,590 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2022-10-16 10:46:48,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:46:48,591 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:48,591 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 10:46:48,629 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-10-16 10:46:48,805 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 10:46:48,805 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:48,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:48,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1189153465, now seen corresponding path program 3 times [2022-10-16 10:46:48,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:48,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [276092630] [2022-10-16 10:46:48,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:48,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:48,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:48,978 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 10:46:48,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:48,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [276092630] [2022-10-16 10:46:48,978 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [276092630] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:48,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377285372] [2022-10-16 10:46:48,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:46:48,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:48,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:48,980 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 10:46:48,985 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 10:46:49,064 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:46:49,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:46:49,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 10:46:49,067 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:49,205 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 10:46:49,205 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:49,333 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 10:46:49,333 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377285372] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:49,334 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:49,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 22 [2022-10-16 10:46:49,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912150733] [2022-10-16 10:46:49,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:49,336 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-16 10:46:49,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:49,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-16 10:46:49,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2022-10-16 10:46:49,339 INFO L87 Difference]: Start difference. First operand 102 states and 118 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 10:46:49,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:49,700 INFO L93 Difference]: Finished difference Result 223 states and 255 transitions. [2022-10-16 10:46:49,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-10-16 10:46:49,701 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 10:46:49,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:49,702 INFO L225 Difference]: With dead ends: 223 [2022-10-16 10:46:49,702 INFO L226 Difference]: Without dead ends: 176 [2022-10-16 10:46:49,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 40 SyntacticMatches, 9 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 381 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:46:49,704 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 163 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:49,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 267 Invalid, 300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:46:49,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-16 10:46:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 120. [2022-10-16 10:46:49,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 111 states have (on average 1.2432432432432432) internal successors, (138), 119 states have internal predecessors, (138), 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 10:46:49,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 138 transitions. [2022-10-16 10:46:49,720 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 138 transitions. Word has length 29 [2022-10-16 10:46:49,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:49,721 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 138 transitions. [2022-10-16 10:46:49,721 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 10:46:49,721 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 138 transitions. [2022-10-16 10:46:49,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 10:46:49,721 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:49,722 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 10:46:49,762 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 10:46:49,935 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:49,935 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:49,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:49,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1862308553, now seen corresponding path program 1 times [2022-10-16 10:46:49,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:49,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259817850] [2022-10-16 10:46:49,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:49,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:49,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:49,992 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 10:46:49,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:49,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259817850] [2022-10-16 10:46:49,993 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259817850] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:46:49,993 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:46:49,993 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:46:49,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035923703] [2022-10-16 10:46:49,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:46:49,994 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:46:49,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:49,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:46:49,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:46:49,995 INFO L87 Difference]: Start difference. First operand 120 states and 138 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 10:46:50,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:50,046 INFO L93 Difference]: Finished difference Result 126 states and 143 transitions. [2022-10-16 10:46:50,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:46:50,047 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 10:46:50,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:50,048 INFO L225 Difference]: With dead ends: 126 [2022-10-16 10:46:50,048 INFO L226 Difference]: Without dead ends: 124 [2022-10-16 10:46:50,049 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 10:46:50,051 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 15 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:50,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 79 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:46:50,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-16 10:46:50,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 123. [2022-10-16 10:46:50,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 114 states have (on average 1.236842105263158) internal successors, (141), 122 states have internal predecessors, (141), 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 10:46:50,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 141 transitions. [2022-10-16 10:46:50,080 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 141 transitions. Word has length 30 [2022-10-16 10:46:50,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:50,080 INFO L495 AbstractCegarLoop]: Abstraction has 123 states and 141 transitions. [2022-10-16 10:46:50,081 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 10:46:50,081 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 141 transitions. [2022-10-16 10:46:50,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 10:46:50,081 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:50,081 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 10:46:50,081 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-16 10:46:50,082 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:50,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:50,083 INFO L85 PathProgramCache]: Analyzing trace with hash 496870551, now seen corresponding path program 1 times [2022-10-16 10:46:50,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:50,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801304797] [2022-10-16 10:46:50,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:50,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:50,196 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 10:46:50,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:50,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801304797] [2022-10-16 10:46:50,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801304797] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:50,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [772959535] [2022-10-16 10:46:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:50,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:50,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:50,199 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 10:46:50,209 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 10:46:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:50,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:46:50,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:50,359 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 10:46:50,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:50,431 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 10:46:50,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [772959535] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:50,431 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:50,432 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:46:50,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732252479] [2022-10-16 10:46:50,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:50,432 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:46:50,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:50,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:46:50,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:46:50,433 INFO L87 Difference]: Start difference. First operand 123 states and 141 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 10:46:50,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:50,716 INFO L93 Difference]: Finished difference Result 164 states and 183 transitions. [2022-10-16 10:46:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:46:50,717 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 10:46:50,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:50,718 INFO L225 Difference]: With dead ends: 164 [2022-10-16 10:46:50,718 INFO L226 Difference]: Without dead ends: 128 [2022-10-16 10:46:50,719 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 10:46:50,720 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 151 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:50,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 298 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:46:50,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-10-16 10:46:50,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 113. [2022-10-16 10:46:50,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 104 states have (on average 1.2115384615384615) internal successors, (126), 112 states have internal predecessors, (126), 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 10:46:50,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 126 transitions. [2022-10-16 10:46:50,736 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 126 transitions. Word has length 31 [2022-10-16 10:46:50,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:50,736 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 126 transitions. [2022-10-16 10:46:50,736 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 10:46:50,737 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 126 transitions. [2022-10-16 10:46:50,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:46:50,738 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:50,738 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 10:46:50,782 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 10:46:50,953 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 10:46:50,954 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:50,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:50,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1941421149, now seen corresponding path program 1 times [2022-10-16 10:46:50,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:50,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725088010] [2022-10-16 10:46:50,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:50,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:50,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:51,069 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 10:46:51,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:51,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725088010] [2022-10-16 10:46:51,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725088010] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:51,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86086668] [2022-10-16 10:46:51,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:51,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:51,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:51,071 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 10:46:51,097 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 10:46:51,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:51,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:46:51,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:51,246 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 10:46:51,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:51,330 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 10:46:51,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86086668] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:51,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:51,331 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:46:51,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519277840] [2022-10-16 10:46:51,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:51,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:46:51,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:51,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:46:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:46:51,333 INFO L87 Difference]: Start difference. First operand 113 states and 126 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 10:46:51,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:46:51,520 INFO L93 Difference]: Finished difference Result 129 states and 141 transitions. [2022-10-16 10:46:51,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:46:51,521 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 10:46:51,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:46:51,522 INFO L225 Difference]: With dead ends: 129 [2022-10-16 10:46:51,522 INFO L226 Difference]: Without dead ends: 97 [2022-10-16 10:46:51,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 54 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2022-10-16 10:46:51,523 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 68 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:46:51,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 222 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:46:51,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-16 10:46:51,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2022-10-16 10:46:51,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 87 states have (on average 1.2413793103448276) internal successors, (108), 95 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 10:46:51,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 108 transitions. [2022-10-16 10:46:51,535 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 108 transitions. Word has length 33 [2022-10-16 10:46:51,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:46:51,535 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 108 transitions. [2022-10-16 10:46:51,536 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 10:46:51,536 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 108 transitions. [2022-10-16 10:46:51,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:46:51,536 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:46:51,536 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 10:46:51,572 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 10:46:51,751 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 10:46:51,752 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:46:51,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:46:51,752 INFO L85 PathProgramCache]: Analyzing trace with hash -704379957, now seen corresponding path program 4 times [2022-10-16 10:46:51,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:46:51,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125943747] [2022-10-16 10:46:51,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:46:51,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:46:51,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:46:53,255 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 10:46:53,256 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:46:53,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125943747] [2022-10-16 10:46:53,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125943747] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:46:53,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104016963] [2022-10-16 10:46:53,257 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:46:53,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:46:53,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:46:53,258 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 10:46:53,259 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 10:46:53,348 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:46:53,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:46:53,350 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 51 conjunts are in the unsatisfiable core [2022-10-16 10:46:53,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:46:53,375 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 10:46:53,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:53,420 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 10:46:53,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:53,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:53,589 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 10:46:53,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:53,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:53,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:53,827 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 10:46:54,177 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:46:54,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:54,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:54,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:54,182 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 10:46:54,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:54,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:54,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:54,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:54,632 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:46:54,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:54,635 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 10:46:54,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:46:54,921 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 10:46:54,980 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 10:46:54,980 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:46:58,935 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 10:46:58,935 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104016963] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:46:58,936 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:46:58,936 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 56 [2022-10-16 10:46:58,936 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435658379] [2022-10-16 10:46:58,936 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:46:58,937 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-10-16 10:46:58,937 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:46:58,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-10-16 10:46:58,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=339, Invalid=2853, Unknown=0, NotChecked=0, Total=3192 [2022-10-16 10:46:58,939 INFO L87 Difference]: Start difference. First operand 96 states and 108 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 10:47:22,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:47:22,962 INFO L93 Difference]: Finished difference Result 147 states and 167 transitions. [2022-10-16 10:47:22,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-10-16 10:47:22,962 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 10:47:22,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:47:22,963 INFO L225 Difference]: With dead ends: 147 [2022-10-16 10:47:22,963 INFO L226 Difference]: Without dead ends: 146 [2022-10-16 10:47:22,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1589 ImplicationChecksByTransitivity, 28.4s TimeCoverageRelationStatistics Valid=910, Invalid=7279, Unknown=1, NotChecked=0, Total=8190 [2022-10-16 10:47:22,967 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 123 mSDsluCounter, 495 mSDsCounter, 0 mSdLazyCounter, 570 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 1297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 570 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 709 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:47:22,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 532 Invalid, 1297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 570 Invalid, 0 Unknown, 709 Unchecked, 0.5s Time] [2022-10-16 10:47:22,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2022-10-16 10:47:22,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 127. [2022-10-16 10:47:22,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 118 states have (on average 1.2203389830508475) internal successors, (144), 126 states have internal predecessors, (144), 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 10:47:22,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 144 transitions. [2022-10-16 10:47:22,994 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 144 transitions. Word has length 33 [2022-10-16 10:47:22,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:47:22,994 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 144 transitions. [2022-10-16 10:47:22,995 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 10:47:22,995 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 144 transitions. [2022-10-16 10:47:22,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 10:47:22,995 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:47:22,996 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 10:47:23,036 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 10:47:23,210 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 10:47:23,210 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:47:23,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:47:23,211 INFO L85 PathProgramCache]: Analyzing trace with hash -360942113, now seen corresponding path program 3 times [2022-10-16 10:47:23,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:47:23,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132302974] [2022-10-16 10:47:23,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:47:23,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:47:23,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:47:23,945 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 10:47:23,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:47:23,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132302974] [2022-10-16 10:47:23,946 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132302974] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:47:23,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947529845] [2022-10-16 10:47:23,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:47:23,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:47:23,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:47:23,947 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 10:47:23,948 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 10:47:24,037 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-10-16 10:47:24,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:47:24,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 10:47:24,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:47:24,047 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 10:47:24,202 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 10:47:24,552 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 10:47:24,760 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 10:47:25,045 INFO L356 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-10-16 10:47:25,046 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 39 treesize of output 18 [2022-10-16 10:47:25,093 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:47:25,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:47:25,686 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:47:25,686 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 20 treesize of output 24 [2022-10-16 10:47:29,368 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_104| Int) (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 (< 0 (+ 9223372036854775809 (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|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_104| 4))) .cse0)) (< (+ 9223372036854775808 .cse0) 0) (< |v_ULTIMATE.start_main_~i~0#1_104| 2) (not (< |v_ULTIMATE.start_main_~i~0#1_104| c_~N~0))))) is different from false [2022-10-16 10:47:29,392 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_104| Int) (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 (< 0 (+ 9223372036854775809 (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|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_104| 4))) .cse0)) (< (+ 9223372036854775808 .cse0) 0) (< |v_ULTIMATE.start_main_~i~0#1_104| 2) (< |c_ULTIMATE.start_main_~i~0#1| (+ |v_ULTIMATE.start_main_~i~0#1_104| 1))))) is different from false [2022-10-16 10:47:29,415 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_104| Int) (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 (< 0 (+ 9223372036854775809 (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|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_104| 4))) .cse0)) (< (+ 9223372036854775808 .cse0) 0) (< |c_ULTIMATE.start_main_#t~post7#1| |v_ULTIMATE.start_main_~i~0#1_104|) (< |v_ULTIMATE.start_main_~i~0#1_104| 2)))) is different from false [2022-10-16 10:47:29,452 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_104| Int) (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 (< 0 (+ 9223372036854775809 (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|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_104| 4))) .cse0)) (< (+ 9223372036854775808 .cse0) 0) (< |v_ULTIMATE.start_main_~i~0#1_104| 2) (< |c_ULTIMATE.start_main_~i~0#1| |v_ULTIMATE.start_main_~i~0#1_104|)))) is different from false [2022-10-16 10:47:29,469 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:47:29,470 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 31 treesize of output 32 [2022-10-16 10:47:29,483 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:47:29,484 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 52 treesize of output 48 [2022-10-16 10:47:29,499 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:47:29,499 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 39 treesize of output 39 [2022-10-16 10:47:29,886 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 15 refuted. 3 times theorem prover too weak. 0 trivial. 9 not checked. [2022-10-16 10:47:29,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947529845] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:47:29,886 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:47:29,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 18] total 48 [2022-10-16 10:47:29,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013194251] [2022-10-16 10:47:29,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:47:29,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-16 10:47:29,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:47:29,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-16 10:47:29,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1781, Unknown=7, NotChecked=356, Total=2352 [2022-10-16 10:47:29,890 INFO L87 Difference]: Start difference. First operand 127 states and 144 transitions. Second operand has 49 states, 48 states have (on average 1.9583333333333333) internal successors, (94), 49 states have internal predecessors, (94), 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 10:47:31,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:47:31,391 INFO L93 Difference]: Finished difference Result 159 states and 183 transitions. [2022-10-16 10:47:31,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 10:47:31,392 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 1.9583333333333333) internal successors, (94), 49 states have internal predecessors, (94), 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 10:47:31,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:47:31,393 INFO L225 Difference]: With dead ends: 159 [2022-10-16 10:47:31,394 INFO L226 Difference]: Without dead ends: 158 [2022-10-16 10:47:31,395 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 66 ConstructedPredicates, 4 IntricatePredicates, 1 DeprecatedPredicates, 1051 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=452, Invalid=3589, Unknown=7, NotChecked=508, Total=4556 [2022-10-16 10:47:31,396 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 45 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 317 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:47:31,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 422 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 214 Invalid, 0 Unknown, 317 Unchecked, 0.2s Time] [2022-10-16 10:47:31,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-10-16 10:47:31,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2022-10-16 10:47:31,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 148 states have (on average 1.2162162162162162) internal successors, (180), 156 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 10:47:31,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 180 transitions. [2022-10-16 10:47:31,420 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 180 transitions. Word has length 34 [2022-10-16 10:47:31,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:47:31,421 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 180 transitions. [2022-10-16 10:47:31,421 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 1.9583333333333333) internal successors, (94), 49 states have internal predecessors, (94), 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 10:47:31,421 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 180 transitions. [2022-10-16 10:47:31,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 10:47:31,422 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:47:31,422 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:47:31,449 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 10:47:31,635 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 10:47:31,636 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:47:31,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:47:31,641 INFO L85 PathProgramCache]: Analyzing trace with hash -842161369, now seen corresponding path program 2 times [2022-10-16 10:47:31,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:47:31,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154224429] [2022-10-16 10:47:31,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:47:31,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:47:31,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:47:31,796 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 10:47:31,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:47:31,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154224429] [2022-10-16 10:47:31,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154224429] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:47:31,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639773126] [2022-10-16 10:47:31,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:47:31,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:47:31,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:47:31,798 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 10:47:31,808 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 10:47:31,880 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:47:31,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:47:31,882 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:47:31,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:47:32,017 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 10:47:32,017 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:47:32,147 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 10:47:32,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [639773126] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:47:32,148 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:47:32,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:47:32,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283879864] [2022-10-16 10:47:32,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:47:32,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:47:32,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:47:32,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:47:32,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:47:32,150 INFO L87 Difference]: Start difference. First operand 157 states and 180 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 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 10:47:32,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:47:32,472 INFO L93 Difference]: Finished difference Result 177 states and 200 transitions. [2022-10-16 10:47:32,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:47:32,473 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 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 37 [2022-10-16 10:47:32,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:47:32,475 INFO L225 Difference]: With dead ends: 177 [2022-10-16 10:47:32,475 INFO L226 Difference]: Without dead ends: 160 [2022-10-16 10:47:32,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 62 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=142, Invalid=508, Unknown=0, NotChecked=0, Total=650 [2022-10-16 10:47:32,477 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 94 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:47:32,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 196 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:47:32,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-10-16 10:47:32,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2022-10-16 10:47:32,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 148 states have (on average 1.2094594594594594) internal successors, (179), 156 states have internal predecessors, (179), 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 10:47:32,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 179 transitions. [2022-10-16 10:47:32,501 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 179 transitions. Word has length 37 [2022-10-16 10:47:32,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:47:32,502 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 179 transitions. [2022-10-16 10:47:32,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 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 10:47:32,502 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 179 transitions. [2022-10-16 10:47:32,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2022-10-16 10:47:32,502 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:47:32,503 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:47:32,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2022-10-16 10:47:32,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:47:32,704 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:47:32,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:47:32,705 INFO L85 PathProgramCache]: Analyzing trace with hash -842109923, now seen corresponding path program 2 times [2022-10-16 10:47:32,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:47:32,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907492566] [2022-10-16 10:47:32,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:47:32,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:47:32,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:47:32,780 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 10:47:32,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:47:32,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907492566] [2022-10-16 10:47:32,781 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907492566] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:47:32,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883771660] [2022-10-16 10:47:32,781 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:47:32,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:47:32,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:47:32,782 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:47:32,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2022-10-16 10:47:32,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:47:32,882 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:47:32,883 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:47:32,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:47:32,906 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-10-16 10:47:32,906 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:47:32,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883771660] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:47:32,907 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:47:32,907 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 10:47:32,907 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456105679] [2022-10-16 10:47:32,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:47:32,908 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:47:32,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:47:32,908 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:47:32,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:47:32,908 INFO L87 Difference]: Start difference. First operand 157 states and 179 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 10:47:32,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:47:32,975 INFO L93 Difference]: Finished difference Result 157 states and 179 transitions. [2022-10-16 10:47:32,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:47:32,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 37 [2022-10-16 10:47:32,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:47:32,977 INFO L225 Difference]: With dead ends: 157 [2022-10-16 10:47:32,977 INFO L226 Difference]: Without dead ends: 156 [2022-10-16 10:47:32,977 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:47:32,978 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 27 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:47:32,978 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 52 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:47:32,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-10-16 10:47:33,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-10-16 10:47:33,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 148 states have (on average 1.2027027027027026) internal successors, (178), 155 states have internal predecessors, (178), 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 10:47:33,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 178 transitions. [2022-10-16 10:47:33,003 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 178 transitions. Word has length 37 [2022-10-16 10:47:33,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:47:33,004 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 178 transitions. [2022-10-16 10:47:33,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 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 10:47:33,004 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 178 transitions. [2022-10-16 10:47:33,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-10-16 10:47:33,004 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:47:33,005 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:47:33,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2022-10-16 10:47:33,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2022-10-16 10:47:33,218 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:47:33,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:47:33,219 INFO L85 PathProgramCache]: Analyzing trace with hash -640689701, now seen corresponding path program 4 times [2022-10-16 10:47:33,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:47:33,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998743395] [2022-10-16 10:47:33,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:47:33,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:47:33,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:47:34,110 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:47:34,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:47:34,110 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998743395] [2022-10-16 10:47:34,110 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998743395] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:47:34,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539742979] [2022-10-16 10:47:34,111 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 10:47:34,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:47:34,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:47:34,112 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:47:34,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2022-10-16 10:47:34,210 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 10:47:34,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:47:34,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 37 conjunts are in the unsatisfiable core [2022-10-16 10:47:34,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:47:34,418 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 15 treesize of output 11 [2022-10-16 10:47:34,593 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-16 10:47:34,593 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 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 25 treesize of output 24 [2022-10-16 10:47:34,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:34,739 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 16 treesize of output 18 [2022-10-16 10:47:34,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:34,903 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 10:47:35,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:35,135 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 10:47:35,190 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:47:35,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:47:36,769 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_940 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (or (< 0 (+ v_ArrVal_940 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_940)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset| 4)))) (< (+ v_ArrVal_940 9223372036854775808) 0))) is different from false [2022-10-16 10:47:37,972 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_940 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (or (< 0 (+ v_ArrVal_940 (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_940)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_#t~post8#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809)) (< (+ v_ArrVal_940 9223372036854775808) 0))) is different from false [2022-10-16 10:47:39,039 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_940 Int) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (or (< 0 (+ v_ArrVal_940 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_940)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (< (+ v_ArrVal_940 9223372036854775808) 0))) is different from false [2022-10-16 10:47:39,051 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:47:39,052 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 10:47:39,060 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 10:47:39,086 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 (select (select (store |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 10:47:39,129 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_936 Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ 9223372036854775809 .cse0 (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_936)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 10:47:39,154 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_124| Int)) (or (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_936 Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_124| 4)) v_ArrVal_936)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse0)) (< (+ 9223372036854775808 .cse0) 0)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_124|)))) is different from false [2022-10-16 10:47:39,186 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_124| Int) (v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_936 Int)) (let ((.cse0 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_124| 4)) v_ArrVal_936)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse0)) (< |v_ULTIMATE.start_main_~i~0#1_124| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ 9223372036854775808 .cse0) 0)))) is different from false [2022-10-16 10:47:39,216 INFO L356 Elim1Store]: treesize reduction 29, result has 46.3 percent of original size [2022-10-16 10:47:39,216 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 2 case distinctions, treesize of input 36 treesize of output 42 [2022-10-16 10:47:39,227 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:47:39,227 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 10:47:39,238 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:47:39,238 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 10:47:39,526 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 34 not checked. [2022-10-16 10:47:39,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539742979] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:47:39,526 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:47:39,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 18] total 50 [2022-10-16 10:47:39,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025946553] [2022-10-16 10:47:39,527 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:47:39,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 10:47:39,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:47:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 10:47:39,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=1667, Unknown=8, NotChecked=712, Total=2550 [2022-10-16 10:47:39,530 INFO L87 Difference]: Start difference. First operand 156 states and 178 transitions. Second operand has 51 states, 50 states have (on average 2.12) internal successors, (106), 51 states have internal predecessors, (106), 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 10:47:39,889 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse3 (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (select .cse1 .cse3))) (and (= .cse0 1) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 2 |c_ULTIMATE.start_main_~i~0#1|) (forall ((|v_ULTIMATE.start_main_~i~0#1_124| Int) (v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_936 Int)) (let ((.cse2 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse1 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_124| 4)) v_ArrVal_936)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) 9223372036854775809 .cse2)) (< |v_ULTIMATE.start_main_~i~0#1_124| (+ |c_ULTIMATE.start_main_~i~0#1| 1)) (< (+ 9223372036854775808 .cse2) 0)))) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (= .cse3 8) (<= 1 .cse0)))) is different from false [2022-10-16 10:47:41,921 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse1 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_124| Int)) (or (forall ((v_arrayElimArr_3 (Array Int Int)) (|ULTIMATE.start_main_~#sum~0#1.offset| Int) (v_ArrVal_936 Int)) (let ((.cse2 (select v_arrayElimArr_3 |ULTIMATE.start_main_~#sum~0#1.offset|))) (or (< 0 (+ (select (select (store (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store .cse0 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (* |v_ULTIMATE.start_main_~i~0#1_124| 4)) v_ArrVal_936)) |c_ULTIMATE.start_main_~#sum~0#1.base| v_arrayElimArr_3) |c_ULTIMATE.start_main_~a~0#1.base|) .cse1) 9223372036854775809 .cse2)) (< (+ 9223372036854775808 .cse2) 0)))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_124|)))) (<= (div (+ 8 (* (- 1) |c_ULTIMATE.start_main_~a~0#1.offset|)) 4) |c_ULTIMATE.start_main_#t~post7#1|) (= (select .cse0 8) 1) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (<= 2 |c_ULTIMATE.start_main_#t~post7#1|) (<= 1 (select .cse0 .cse1)) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false [2022-10-16 10:47:43,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:47:43,485 INFO L93 Difference]: Finished difference Result 190 states and 211 transitions. [2022-10-16 10:47:43,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:47:43,485 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 2.12) internal successors, (106), 51 states have internal predecessors, (106), 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 38 [2022-10-16 10:47:43,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:47:43,486 INFO L225 Difference]: With dead ends: 190 [2022-10-16 10:47:43,486 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 10:47:43,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 43 SyntacticMatches, 4 SemanticMatches, 67 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=335, Invalid=3117, Unknown=10, NotChecked=1230, Total=4692 [2022-10-16 10:47:43,488 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 208 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 853 SdHoareTripleChecker+Invalid, 1855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 770 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:47:43,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 853 Invalid, 1855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1017 Invalid, 0 Unknown, 770 Unchecked, 0.7s Time] [2022-10-16 10:47:43,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 10:47:43,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 156. [2022-10-16 10:47:43,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 148 states have (on average 1.195945945945946) internal successors, (177), 155 states have internal predecessors, (177), 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 10:47:43,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 177 transitions. [2022-10-16 10:47:43,512 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 177 transitions. Word has length 38 [2022-10-16 10:47:43,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:47:43,512 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 177 transitions. [2022-10-16 10:47:43,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 2.12) internal successors, (106), 51 states have internal predecessors, (106), 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 10:47:43,513 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 177 transitions. [2022-10-16 10:47:43,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 10:47:43,513 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:47:43,513 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:47:43,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2022-10-16 10:47:43,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2022-10-16 10:47:43,717 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:47:43,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:47:43,718 INFO L85 PathProgramCache]: Analyzing trace with hash 1793130961, now seen corresponding path program 5 times [2022-10-16 10:47:43,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:47:43,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355656952] [2022-10-16 10:47:43,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:47:43,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:47:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:47:43,999 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 11 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:47:43,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:47:44,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355656952] [2022-10-16 10:47:44,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355656952] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:47:44,000 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466641815] [2022-10-16 10:47:44,000 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 10:47:44,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:47:44,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:47:44,004 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:47:44,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2022-10-16 10:47:44,103 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2022-10-16 10:47:44,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:47:44,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:47:44,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:47:44,383 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:47:44,383 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:47:44,616 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 24 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:47:44,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466641815] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:47:44,616 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:47:44,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 28 [2022-10-16 10:47:44,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959132904] [2022-10-16 10:47:44,617 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:47:44,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-10-16 10:47:44,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:47:44,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-10-16 10:47:44,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=635, Unknown=0, NotChecked=0, Total=756 [2022-10-16 10:47:44,619 INFO L87 Difference]: Start difference. First operand 156 states and 177 transitions. Second operand has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 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 10:47:45,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:47:45,227 INFO L93 Difference]: Finished difference Result 221 states and 242 transitions. [2022-10-16 10:47:45,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 10:47:45,235 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 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 39 [2022-10-16 10:47:45,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:47:45,236 INFO L225 Difference]: With dead ends: 221 [2022-10-16 10:47:45,236 INFO L226 Difference]: Without dead ends: 179 [2022-10-16 10:47:45,237 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 54 SyntacticMatches, 13 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 741 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=332, Invalid=1648, Unknown=0, NotChecked=0, Total=1980 [2022-10-16 10:47:45,238 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 272 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:47:45,238 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 316 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:47:45,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2022-10-16 10:47:45,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 140. [2022-10-16 10:47:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 132 states have (on average 1.1818181818181819) internal successors, (156), 139 states have internal predecessors, (156), 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 10:47:45,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 156 transitions. [2022-10-16 10:47:45,263 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 156 transitions. Word has length 39 [2022-10-16 10:47:45,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:47:45,263 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 156 transitions. [2022-10-16 10:47:45,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 28 states have internal predecessors, (71), 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 10:47:45,263 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 156 transitions. [2022-10-16 10:47:45,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 10:47:45,264 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:47:45,264 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:47:45,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2022-10-16 10:47:45,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-10-16 10:47:45,475 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:47:45,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:47:45,475 INFO L85 PathProgramCache]: Analyzing trace with hash -392648735, now seen corresponding path program 2 times [2022-10-16 10:47:45,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:47:45,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056082690] [2022-10-16 10:47:45,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:47:45,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:47:45,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:47:45,684 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 5 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 10:47:45,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:47:45,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056082690] [2022-10-16 10:47:45,685 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056082690] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:47:45,685 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039043273] [2022-10-16 10:47:45,685 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:47:45,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:47:45,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:47:45,686 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:47:45,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2022-10-16 10:47:45,770 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:47:45,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:47:45,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:47:45,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:47:45,873 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 10:47:45,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:47:45,962 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-10-16 10:47:45,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039043273] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:47:45,962 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:47:45,963 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 4, 4] total 16 [2022-10-16 10:47:45,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947079216] [2022-10-16 10:47:45,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:47:45,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:47:45,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:47:45,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:47:45,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:47:45,965 INFO L87 Difference]: Start difference. First operand 140 states and 156 transitions. Second operand has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 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 10:47:46,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:47:46,359 INFO L93 Difference]: Finished difference Result 196 states and 215 transitions. [2022-10-16 10:47:46,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 10:47:46,360 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 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 40 [2022-10-16 10:47:46,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:47:46,361 INFO L225 Difference]: With dead ends: 196 [2022-10-16 10:47:46,361 INFO L226 Difference]: Without dead ends: 174 [2022-10-16 10:47:46,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=203, Invalid=727, Unknown=0, NotChecked=0, Total=930 [2022-10-16 10:47:46,363 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 223 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:47:46,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 185 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:47:46,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-10-16 10:47:46,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 153. [2022-10-16 10:47:46,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 146 states have (on average 1.1575342465753424) internal successors, (169), 152 states have internal predecessors, (169), 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 10:47:46,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 169 transitions. [2022-10-16 10:47:46,392 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 169 transitions. Word has length 40 [2022-10-16 10:47:46,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:47:46,392 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 169 transitions. [2022-10-16 10:47:46,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.6875) internal successors, (59), 16 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 10:47:46,392 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 169 transitions. [2022-10-16 10:47:46,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-10-16 10:47:46,393 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:47:46,393 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:47:46,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2022-10-16 10:47:46,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:47:46,594 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 10:47:46,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:47:46,595 INFO L85 PathProgramCache]: Analyzing trace with hash 712739755, now seen corresponding path program 3 times [2022-10-16 10:47:46,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:47:46,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248017335] [2022-10-16 10:47:46,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:47:46,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:47:46,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:47:48,450 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:47:48,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:47:48,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248017335] [2022-10-16 10:47:48,451 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248017335] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:47:48,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568972394] [2022-10-16 10:47:48,451 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:47:48,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:47:48,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:47:48,452 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:47:48,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2022-10-16 10:47:48,555 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 10:47:48,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:47:48,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 53 conjunts are in the unsatisfiable core [2022-10-16 10:47:48,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:47:48,575 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 10:47:48,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:48,656 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 10:47:48,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:48,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:48,937 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 10:47:49,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:49,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:49,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:49,501 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:47:49,503 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 54 treesize of output 44 [2022-10-16 10:47:50,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:50,212 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:50,217 INFO L356 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2022-10-16 10:47:50,218 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 4 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 47 [2022-10-16 10:47:51,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:51,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:51,580 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:47:51,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:51,600 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-10-16 10:47:51,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 47 treesize of output 46 [2022-10-16 10:47:51,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:51,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:51,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:51,969 INFO L356 Elim1Store]: treesize reduction 84, result has 31.1 percent of original size [2022-10-16 10:47:51,969 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 70 [2022-10-16 10:47:53,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:53,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:53,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:47:53,017 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:47:53,017 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 57 treesize of output 29 [2022-10-16 10:47:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:47:53,091 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:49:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 18 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:49:15,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568972394] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:49:15,761 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:49:15,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 21, 21] total 63 [2022-10-16 10:49:15,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125041126] [2022-10-16 10:49:15,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:49:15,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-10-16 10:49:15,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:49:15,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-10-16 10:49:15,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=457, Invalid=3530, Unknown=45, NotChecked=0, Total=4032 [2022-10-16 10:49:15,767 INFO L87 Difference]: Start difference. First operand 153 states and 169 transitions. Second operand has 64 states, 63 states have (on average 1.8253968253968254) internal successors, (115), 64 states have internal predecessors, (115), 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 10:49:19,993 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse5 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|)) (.cse6 (select (select |c_#memory_int| |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_main_~i~0#1_157| Int)) (or (forall ((|v_ULTIMATE.start_main_~i~0#1_154| Int) (v_ArrVal_1087 Int) (v_ArrVal_1089 Int) (|v_ULTIMATE.start_main_~i~0#1_151| Int) (v_ArrVal_1091 Int)) (let ((.cse4 (store .cse5 (+ (* |v_ULTIMATE.start_main_~i~0#1_157| 4) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_1087))) (let ((.cse2 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse4))) (let ((.cse3 (select .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (or (< (let ((.cse1 (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1091)))) (let ((.cse0 (store (store (select .cse1 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1) (+ (* |v_ULTIMATE.start_main_~i~0#1_151| 4) |c_ULTIMATE.start_main_~b~0#1.offset|) 1))) (+ (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|) (select (select (store .cse1 |c_ULTIMATE.start_main_~b~0#1.base| .cse0) |c_ULTIMATE.start_main_~#sum~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.offset|)))) 9223372036854775808) (< 1 |v_ULTIMATE.start_main_~i~0#1_154|) (not (<= v_ArrVal_1087 1)) (< (+ v_ArrVal_1089 (select (select (store .cse2 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset| v_ArrVal_1089)) |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_154| 4) |c_ULTIMATE.start_main_~a~0#1.offset|))) v_ArrVal_1091) (< (+ (select .cse3 |c_ULTIMATE.start_main_~#sum~0#1.offset|) (select .cse4 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_1089) (< |v_ULTIMATE.start_main_~i~0#1_154| |v_ULTIMATE.start_main_~i~0#1_157|)))))) (not (<= (+ |c_ULTIMATE.start_main_#t~post7#1| 1) |v_ULTIMATE.start_main_~i~0#1_157|)))) (= (select .cse5 0) 1) (= .cse6 0) (<= (select .cse5 |c_ULTIMATE.start_main_~a~0#1.offset|) 1) (or (< |c_ULTIMATE.start_main_#t~post7#1| 1) (= (select .cse5 (+ |c_ULTIMATE.start_main_~a~0#1.offset| 4)) 1)) (<= |c_ULTIMATE.start_main_#t~post7#1| 1) (<= (+ 2 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~#sum~0#1.base|) (not (= |c_ULTIMATE.start_main_~#sum~0#1.base| |c_ULTIMATE.start_main_~a~0#1.base|)) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (<= (+ |c_ULTIMATE.start_main_~b~0#1.base| 2) |c_ULTIMATE.start_main_~#sum~0#1.base|) (exists ((|ULTIMATE.start_main_~i~0#1| Int)) (and (<= 1 |ULTIMATE.start_main_~i~0#1|) (< |ULTIMATE.start_main_~i~0#1| c_~N~0) (<= (select .cse5 (+ (* |ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~a~0#1.offset|)) 1))) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~#sum~0#1.base|)) (<= .cse6 0) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0))) is different from false