/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/eca-rers2018/Problem12.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 11:51:43,877 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 11:51:43,880 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 11:51:43,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 11:51:43,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 11:51:43,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 11:51:43,922 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 11:51:43,938 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 11:51:43,940 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 11:51:43,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 11:51:43,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 11:51:43,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 11:51:43,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 11:51:43,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 11:51:43,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 11:51:43,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 11:51:43,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 11:51:43,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 11:51:43,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 11:51:43,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 11:51:43,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 11:51:43,957 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 11:51:43,959 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 11:51:43,960 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 11:51:43,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 11:51:43,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 11:51:43,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 11:51:43,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 11:51:43,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 11:51:43,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 11:51:43,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 11:51:43,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 11:51:43,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 11:51:43,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 11:51:43,981 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 11:51:43,982 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 11:51:43,983 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 11:51:44,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 11:51:44,039 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 11:51:44,040 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 11:51:44,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 11:51:44,042 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 11:51:44,042 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 11:51:44,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 11:51:44,045 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 11:51:44,046 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 11:51:44,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 11:51:44,047 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 11:51:44,047 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 11:51:44,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 11:51:44,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 11:51:44,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 11:51:44,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 11:51:44,049 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 11:51:44,049 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 11:51:44,049 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 11:51:44,049 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 11:51:44,050 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 11:51:44,050 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 11:51:44,050 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 11:51:44,051 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 11:51:44,051 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 11:51:44,051 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 11:51:44,051 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:51:44,052 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 11:51:44,052 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 11:51:44,052 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 11:51:44,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 11:51:44,053 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 11:51:44,053 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 11:51:44,054 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 11:51:44,460 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 11:51:44,485 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 11:51:44,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 11:51:44,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 11:51:44,490 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 11:51:44,491 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2018/Problem12.c [2022-10-16 11:51:44,572 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0d1d33b9/2f84b7d4e09343fd95fb4a4e88a4eac8/FLAG7577e47cb [2022-10-16 11:51:45,756 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 11:51:45,757 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2018/Problem12.c [2022-10-16 11:51:45,817 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0d1d33b9/2f84b7d4e09343fd95fb4a4e88a4eac8/FLAG7577e47cb [2022-10-16 11:51:46,018 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d0d1d33b9/2f84b7d4e09343fd95fb4a4e88a4eac8 [2022-10-16 11:51:46,021 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 11:51:46,027 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 11:51:46,028 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 11:51:46,029 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 11:51:46,033 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 11:51:46,034 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:51:46" (1/1) ... [2022-10-16 11:51:46,035 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2026b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:46, skipping insertion in model container [2022-10-16 11:51:46,035 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 11:51:46" (1/1) ... [2022-10-16 11:51:46,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 11:51:46,387 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 11:51:46,688 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/eca-rers2018/Problem12.c[778,791] [2022-10-16 11:51:46,700 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/eca-rers2018/Problem12.c[817,830] [2022-10-16 11:51:50,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:51:50,200 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 11:51:50,217 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/eca-rers2018/Problem12.c[778,791] [2022-10-16 11:51:50,218 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/eca-rers2018/Problem12.c[817,830] [2022-10-16 11:51:51,333 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 11:51:51,481 INFO L208 MainTranslator]: Completed translation [2022-10-16 11:51:51,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51 WrapperNode [2022-10-16 11:51:51,482 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 11:51:51,483 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 11:51:51,483 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 11:51:51,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 11:51:51,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:51:51,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:51:58,772 INFO L138 Inliner]: procedures = 350, calls = 5526, calls flagged for inlining = 234, calls inlined = 234, statements flattened = 60749 [2022-10-16 11:51:58,773 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 11:51:58,774 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 11:51:58,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 11:51:58,775 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 11:51:58,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:51:58,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:52:00,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:52:00,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:52:04,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:52:04,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:52:04,795 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:52:05,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:52:05,877 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 11:52:05,886 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 11:52:05,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 11:52:05,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 11:52:05,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (1/1) ... [2022-10-16 11:52:05,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 11:52:05,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:52:05,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 11:52:05,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 11:52:06,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 11:52:06,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 11:52:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_a [2022-10-16 11:52:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_a [2022-10-16 11:52:06,014 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error_b [2022-10-16 11:52:06,014 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error_b [2022-10-16 11:52:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 11:52:06,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 11:52:06,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 11:52:07,373 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 11:52:07,377 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 11:54:44,864 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 11:54:44,975 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 11:54:44,976 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-16 11:54:45,016 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:54:45 BoogieIcfgContainer [2022-10-16 11:54:45,017 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 11:54:45,019 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 11:54:45,019 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 11:54:45,023 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 11:54:45,024 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 11:51:46" (1/3) ... [2022-10-16 11:54:45,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50dc6c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:54:45, skipping insertion in model container [2022-10-16 11:54:45,025 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 11:51:51" (2/3) ... [2022-10-16 11:54:45,025 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50dc6c78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 11:54:45, skipping insertion in model container [2022-10-16 11:54:45,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 11:54:45" (3/3) ... [2022-10-16 11:54:45,027 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12.c [2022-10-16 11:54:45,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 11:54:45,052 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16662 error locations. [2022-10-16 11:54:45,602 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 11:54:45,615 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;@5962f899, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 11:54:45,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16662 error locations. [2022-10-16 11:54:45,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 42705 states, 25940 states have (on average 1.8406707787201233) internal successors, (47747), 42602 states have internal predecessors, (47747), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2022-10-16 11:54:45,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 11:54:45,723 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:54:45,724 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:54:45,725 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16659 more)] === [2022-10-16 11:54:45,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:54:45,730 INFO L85 PathProgramCache]: Analyzing trace with hash 82418571, now seen corresponding path program 1 times [2022-10-16 11:54:45,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:54:45,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404057997] [2022-10-16 11:54:45,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:45,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:54:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:46,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:54:46,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404057997] [2022-10-16 11:54:46,505 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:54:46,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039606356] [2022-10-16 11:54:46,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:46,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:54:46,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:54:46,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:54:46,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 11:54:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:47,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:54:47,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:54:47,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:54:47,574 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:54:47,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039606356] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:54:47,575 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:54:47,575 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:54:47,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450751147] [2022-10-16 11:54:47,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:54:47,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:54:47,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:54:47,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:54:47,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:54:47,691 INFO L87 Difference]: Start difference. First operand has 42705 states, 25940 states have (on average 1.8406707787201233) internal successors, (47747), 42602 states have internal predecessors, (47747), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:54:49,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:54:49,024 INFO L93 Difference]: Finished difference Result 78513 states and 95736 transitions. [2022-10-16 11:54:49,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:54:49,027 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 11:54:49,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:54:49,218 INFO L225 Difference]: With dead ends: 78513 [2022-10-16 11:54:49,218 INFO L226 Difference]: Without dead ends: 35705 [2022-10-16 11:54:49,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:54:49,287 INFO L413 NwaCegarLoop]: 40877 mSDtfsCounter, 0 mSDsluCounter, 40872 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81749 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:54:49,289 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81749 Invalid, 6 Unknown, 0 Unchecked, 0.4s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:54:49,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35705 states. [2022-10-16 11:54:50,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35705 to 35705. [2022-10-16 11:54:50,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35705 states, 25807 states have (on average 1.5761615065679855) internal successors, (40676), 35704 states have internal predecessors, (40676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:54:50,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35705 states to 35705 states and 40676 transitions. [2022-10-16 11:54:50,467 INFO L78 Accepts]: Start accepts. Automaton has 35705 states and 40676 transitions. Word has length 16 [2022-10-16 11:54:50,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:54:50,467 INFO L495 AbstractCegarLoop]: Abstraction has 35705 states and 40676 transitions. [2022-10-16 11:54:50,469 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:54:50,469 INFO L276 IsEmpty]: Start isEmpty. Operand 35705 states and 40676 transitions. [2022-10-16 11:54:50,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 11:54:50,478 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:54:50,478 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:54:50,521 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-10-16 11:54:50,692 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-10-16 11:54:50,693 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16659 more)] === [2022-10-16 11:54:50,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:54:50,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1028637888, now seen corresponding path program 1 times [2022-10-16 11:54:50,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:54:50,696 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354063646] [2022-10-16 11:54:50,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:50,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:54:50,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:50,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:54:50,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354063646] [2022-10-16 11:54:50,807 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:54:50,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [222021098] [2022-10-16 11:54:50,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:50,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:54:50,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:54:50,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:54:50,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 11:54:51,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:51,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 1293 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:54:51,800 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:54:51,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:54:51,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:54:51,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [222021098] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:54:51,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:54:51,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:54:51,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344280102] [2022-10-16 11:54:51,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:54:51,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:54:51,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:54:51,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:54:51,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:54:51,812 INFO L87 Difference]: Start difference. First operand 35705 states and 40676 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:54:52,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:54:52,865 INFO L93 Difference]: Finished difference Result 71409 states and 81352 transitions. [2022-10-16 11:54:52,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:54:52,866 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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 18 [2022-10-16 11:54:52,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:54:52,952 INFO L225 Difference]: With dead ends: 71409 [2022-10-16 11:54:52,952 INFO L226 Difference]: Without dead ends: 35706 [2022-10-16 11:54:52,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:54:53,000 INFO L413 NwaCegarLoop]: 40674 mSDtfsCounter, 0 mSDsluCounter, 40668 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 11:54:53,003 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81342 Invalid, 7 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 11:54:53,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35706 states. [2022-10-16 11:54:53,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35706 to 35706. [2022-10-16 11:54:53,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35706 states, 25808 states have (on average 1.576139181649101) internal successors, (40677), 35705 states have internal predecessors, (40677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:54:53,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35706 states to 35706 states and 40677 transitions. [2022-10-16 11:54:53,994 INFO L78 Accepts]: Start accepts. Automaton has 35706 states and 40677 transitions. Word has length 18 [2022-10-16 11:54:53,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:54:53,994 INFO L495 AbstractCegarLoop]: Abstraction has 35706 states and 40677 transitions. [2022-10-16 11:54:53,995 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:54:53,995 INFO L276 IsEmpty]: Start isEmpty. Operand 35706 states and 40677 transitions. [2022-10-16 11:54:53,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 11:54:53,996 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:54:53,996 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:54:54,044 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 11:54:54,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-10-16 11:54:54,211 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr416ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16659 more)] === [2022-10-16 11:54:54,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:54:54,212 INFO L85 PathProgramCache]: Analyzing trace with hash 603544767, now seen corresponding path program 1 times [2022-10-16 11:54:54,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:54:54,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832643504] [2022-10-16 11:54:54,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:54:54,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:54:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:54:54,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:54:54,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:54:54,553 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832643504] [2022-10-16 11:54:54,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832643504] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:54:54,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:54:54,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:54:54,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633125313] [2022-10-16 11:54:54,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:54:54,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 11:54:54,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:54:54,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 11:54:54,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 11:54:54,560 INFO L87 Difference]: Start difference. First operand 35706 states and 40677 transitions. Second operand has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:08,515 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-16 11:55:10,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:55:10,420 INFO L93 Difference]: Finished difference Result 96981 states and 111977 transitions. [2022-10-16 11:55:10,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 11:55:10,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 11:55:10,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:55:10,608 INFO L225 Difference]: With dead ends: 96981 [2022-10-16 11:55:10,608 INFO L226 Difference]: Without dead ends: 61277 [2022-10-16 11:55:10,652 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 11:55:10,660 INFO L413 NwaCegarLoop]: 44930 mSDtfsCounter, 30185 mSDsluCounter, 82087 mSDsCounter, 0 mSdLazyCounter, 6913 mSolverCounterSat, 553 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30185 SdHoareTripleChecker+Valid, 127017 SdHoareTripleChecker+Invalid, 7467 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 6913 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.8s IncrementalHoareTripleChecker+Time [2022-10-16 11:55:10,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30185 Valid, 127017 Invalid, 7467 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [553 Valid, 6913 Invalid, 1 Unknown, 0 Unchecked, 14.8s Time] [2022-10-16 11:55:10,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61277 states. [2022-10-16 11:55:11,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61277 to 49730. [2022-10-16 11:55:11,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49730 states, 39832 states have (on average 1.560604539064069) internal successors, (62162), 49729 states have internal predecessors, (62162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:12,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49730 states to 49730 states and 62162 transitions. [2022-10-16 11:55:12,079 INFO L78 Accepts]: Start accepts. Automaton has 49730 states and 62162 transitions. Word has length 19 [2022-10-16 11:55:12,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:55:12,082 INFO L495 AbstractCegarLoop]: Abstraction has 49730 states and 62162 transitions. [2022-10-16 11:55:12,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:12,082 INFO L276 IsEmpty]: Start isEmpty. Operand 49730 states and 62162 transitions. [2022-10-16 11:55:12,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 11:55:12,083 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:55:12,083 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:55:12,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 11:55:12,086 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4778ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16659 more)] === [2022-10-16 11:55:12,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:55:12,087 INFO L85 PathProgramCache]: Analyzing trace with hash -979741563, now seen corresponding path program 1 times [2022-10-16 11:55:12,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:55:12,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [577304781] [2022-10-16 11:55:12,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:12,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:55:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:12,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:55:12,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [577304781] [2022-10-16 11:55:12,197 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:55:12,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [151619223] [2022-10-16 11:55:12,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:12,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:55:12,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:55:12,205 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:55:12,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 11:55:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:13,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:55:13,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:55:13,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:55:13,277 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:55:13,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [151619223] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:55:13,278 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:55:13,278 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:55:13,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068921860] [2022-10-16 11:55:13,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:55:13,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:55:13,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:55:13,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:55:13,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:13,281 INFO L87 Difference]: Start difference. First operand 49730 states and 62162 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:14,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:55:14,098 INFO L93 Difference]: Finished difference Result 99460 states and 124326 transitions. [2022-10-16 11:55:14,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:55:14,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2022-10-16 11:55:14,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:55:14,212 INFO L225 Difference]: With dead ends: 99460 [2022-10-16 11:55:14,212 INFO L226 Difference]: Without dead ends: 49732 [2022-10-16 11:55:14,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:14,259 INFO L413 NwaCegarLoop]: 40674 mSDtfsCounter, 0 mSDsluCounter, 40668 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:55:14,261 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81342 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:55:14,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49732 states. [2022-10-16 11:55:15,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49732 to 49732. [2022-10-16 11:55:15,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49732 states, 39834 states have (on average 1.5605763920269118) internal successors, (62164), 49731 states have internal predecessors, (62164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:15,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49732 states to 49732 states and 62164 transitions. [2022-10-16 11:55:15,320 INFO L78 Accepts]: Start accepts. Automaton has 49732 states and 62164 transitions. Word has length 22 [2022-10-16 11:55:15,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:55:15,321 INFO L495 AbstractCegarLoop]: Abstraction has 49732 states and 62164 transitions. [2022-10-16 11:55:15,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:15,324 INFO L276 IsEmpty]: Start isEmpty. Operand 49732 states and 62164 transitions. [2022-10-16 11:55:15,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 11:55:15,325 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:55:15,325 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] [2022-10-16 11:55:15,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 11:55:15,540 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:55:15,540 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4778ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16659 more)] === [2022-10-16 11:55:15,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:55:15,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1575686176, now seen corresponding path program 1 times [2022-10-16 11:55:15,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:55:15,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173121322] [2022-10-16 11:55:15,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:15,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:55:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:15,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:55:15,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173121322] [2022-10-16 11:55:15,678 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:55:15,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [947181950] [2022-10-16 11:55:15,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:15,679 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:55:15,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:55:15,680 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:55:15,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 11:55:17,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:17,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 1285 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:55:17,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:55:17,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:55:17,255 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:55:17,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [947181950] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:55:17,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:55:17,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:55:17,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027459141] [2022-10-16 11:55:17,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:55:17,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:55:17,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:55:17,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:55:17,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:17,258 INFO L87 Difference]: Start difference. First operand 49732 states and 62164 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:17,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:55:17,817 INFO L93 Difference]: Finished difference Result 99464 states and 124330 transitions. [2022-10-16 11:55:17,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:55:17,817 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 11:55:17,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:55:18,216 INFO L225 Difference]: With dead ends: 99464 [2022-10-16 11:55:18,216 INFO L226 Difference]: Without dead ends: 49734 [2022-10-16 11:55:18,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:18,255 INFO L413 NwaCegarLoop]: 40674 mSDtfsCounter, 0 mSDsluCounter, 40668 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:55:18,255 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81342 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:55:18,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49734 states. [2022-10-16 11:55:19,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49734 to 49734. [2022-10-16 11:55:19,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49734 states, 39836 states have (on average 1.5605482478160457) internal successors, (62166), 49733 states have internal predecessors, (62166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:19,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49734 states to 49734 states and 62166 transitions. [2022-10-16 11:55:19,375 INFO L78 Accepts]: Start accepts. Automaton has 49734 states and 62166 transitions. Word has length 24 [2022-10-16 11:55:19,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:55:19,375 INFO L495 AbstractCegarLoop]: Abstraction has 49734 states and 62166 transitions. [2022-10-16 11:55:19,375 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:19,376 INFO L276 IsEmpty]: Start isEmpty. Operand 49734 states and 62166 transitions. [2022-10-16 11:55:19,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 11:55:19,377 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:55:19,377 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] [2022-10-16 11:55:19,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 11:55:19,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:55:19,590 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8126ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16659 more)] === [2022-10-16 11:55:19,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:55:19,591 INFO L85 PathProgramCache]: Analyzing trace with hash 452701403, now seen corresponding path program 1 times [2022-10-16 11:55:19,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:55:19,591 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063633798] [2022-10-16 11:55:19,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:19,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:55:19,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:19,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:55:19,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063633798] [2022-10-16 11:55:19,736 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:55:19,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847992978] [2022-10-16 11:55:19,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:19,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:55:19,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:55:19,739 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:55:19,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 11:55:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:20,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 1276 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:55:20,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:55:20,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:55:20,705 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:55:20,705 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847992978] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:55:20,706 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:55:20,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:55:20,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552158724] [2022-10-16 11:55:20,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:55:20,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:55:20,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:55:20,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:55:20,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:20,715 INFO L87 Difference]: Start difference. First operand 49734 states and 62166 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:21,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:55:21,354 INFO L93 Difference]: Finished difference Result 99468 states and 124334 transitions. [2022-10-16 11:55:21,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:55:21,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 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 25 [2022-10-16 11:55:21,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:55:21,442 INFO L225 Difference]: With dead ends: 99468 [2022-10-16 11:55:21,443 INFO L226 Difference]: Without dead ends: 49736 [2022-10-16 11:55:21,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:21,492 INFO L413 NwaCegarLoop]: 40674 mSDtfsCounter, 0 mSDsluCounter, 40668 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:55:21,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81342 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:55:21,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49736 states. [2022-10-16 11:55:22,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49736 to 49736. [2022-10-16 11:55:22,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49736 states, 39838 states have (on average 1.5605201064310457) internal successors, (62168), 49735 states have internal predecessors, (62168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:22,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49736 states to 49736 states and 62168 transitions. [2022-10-16 11:55:22,502 INFO L78 Accepts]: Start accepts. Automaton has 49736 states and 62168 transitions. Word has length 25 [2022-10-16 11:55:22,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:55:22,502 INFO L495 AbstractCegarLoop]: Abstraction has 49736 states and 62168 transitions. [2022-10-16 11:55:22,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:22,503 INFO L276 IsEmpty]: Start isEmpty. Operand 49736 states and 62168 transitions. [2022-10-16 11:55:22,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 11:55:22,504 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:55:22,504 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] [2022-10-16 11:55:22,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 11:55:22,717 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:55:22,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4778ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16659 more)] === [2022-10-16 11:55:22,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:55:22,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1640864526, now seen corresponding path program 1 times [2022-10-16 11:55:22,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:55:22,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106913951] [2022-10-16 11:55:22,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:22,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:55:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:22,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:55:22,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106913951] [2022-10-16 11:55:22,801 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:55:22,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647188581] [2022-10-16 11:55:22,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:22,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:55:22,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:55:22,803 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:55:22,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 11:55:24,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:24,042 INFO L263 TraceCheckSpWp]: Trace formula consists of 1290 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:55:24,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:55:24,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:55:24,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:55:24,066 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647188581] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:55:24,066 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:55:24,066 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:55:24,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053328314] [2022-10-16 11:55:24,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:55:24,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:55:24,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:55:24,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:55:24,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:24,069 INFO L87 Difference]: Start difference. First operand 49736 states and 62168 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:24,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:55:24,474 INFO L93 Difference]: Finished difference Result 99472 states and 124338 transitions. [2022-10-16 11:55:24,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:55:24,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-10-16 11:55:24,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:55:24,538 INFO L225 Difference]: With dead ends: 99472 [2022-10-16 11:55:24,538 INFO L226 Difference]: Without dead ends: 49738 [2022-10-16 11:55:24,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:24,911 INFO L413 NwaCegarLoop]: 40674 mSDtfsCounter, 0 mSDsluCounter, 40668 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:55:24,912 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81342 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:55:24,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49738 states. [2022-10-16 11:55:25,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49738 to 49738. [2022-10-16 11:55:25,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49738 states, 39840 states have (on average 1.560491967871486) internal successors, (62170), 49737 states have internal predecessors, (62170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:25,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49738 states to 49738 states and 62170 transitions. [2022-10-16 11:55:25,892 INFO L78 Accepts]: Start accepts. Automaton has 49738 states and 62170 transitions. Word has length 26 [2022-10-16 11:55:25,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 11:55:25,893 INFO L495 AbstractCegarLoop]: Abstraction has 49738 states and 62170 transitions. [2022-10-16 11:55:25,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 11:55:25,893 INFO L276 IsEmpty]: Start isEmpty. Operand 49738 states and 62170 transitions. [2022-10-16 11:55:25,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 11:55:25,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 11:55:25,896 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 11:55:25,929 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 11:55:26,109 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:55:26,110 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8126ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16659 more)] === [2022-10-16 11:55:26,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 11:55:26,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1645316435, now seen corresponding path program 1 times [2022-10-16 11:55:26,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 11:55:26,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104859981] [2022-10-16 11:55:26,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:26,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 11:55:26,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:26,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 11:55:26,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104859981] [2022-10-16 11:55:26,192 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-10-16 11:55:26,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1129667079] [2022-10-16 11:55:26,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 11:55:26,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 11:55:26,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 11:55:26,193 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 11:55:26,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 11:55:27,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 11:55:27,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-16 11:55:27,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 11:55:27,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 11:55:27,156 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 11:55:27,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1129667079] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 11:55:27,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 11:55:27,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 11:55:27,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174167601] [2022-10-16 11:55:27,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 11:55:27,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 11:55:27,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 11:55:27,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 11:55:27,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:27,159 INFO L87 Difference]: Start difference. First operand 49738 states and 62170 transitions. Second operand has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 11:55:27,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 11:55:27,976 INFO L93 Difference]: Finished difference Result 99476 states and 124342 transitions. [2022-10-16 11:55:27,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 11:55:27,977 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 3 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 27 [2022-10-16 11:55:27,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 11:55:28,062 INFO L225 Difference]: With dead ends: 99476 [2022-10-16 11:55:28,063 INFO L226 Difference]: Without dead ends: 49740 [2022-10-16 11:55:28,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 11:55:28,094 INFO L413 NwaCegarLoop]: 40674 mSDtfsCounter, 0 mSDsluCounter, 40668 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81342 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 11:55:28,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81342 Invalid, 7 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 11:55:28,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49740 states. [2022-10-16 11:55:28,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49740 to 49740. [2022-10-16 11:55:28,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49740 states, 39842 states have (on average 1.5604638321369408) internal successors, (62172), 49739 states have internal predecessors, (62172), 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)