/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/float-newlib/double_req_bl_0720.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 12:00:07,866 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 12:00:07,868 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 12:00:07,928 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 12:00:07,929 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 12:00:07,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 12:00:07,939 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 12:00:07,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 12:00:07,950 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 12:00:07,959 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 12:00:07,961 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 12:00:07,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 12:00:07,964 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 12:00:07,967 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 12:00:07,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 12:00:07,976 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 12:00:07,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 12:00:07,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 12:00:07,983 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 12:00:07,988 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 12:00:07,996 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 12:00:07,999 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 12:00:08,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 12:00:08,003 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 12:00:08,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 12:00:08,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 12:00:08,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 12:00:08,013 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 12:00:08,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 12:00:08,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 12:00:08,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 12:00:08,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 12:00:08,019 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 12:00:08,020 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 12:00:08,021 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 12:00:08,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 12:00:08,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 12:00:08,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 12:00:08,023 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 12:00:08,025 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 12:00:08,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 12:00:08,027 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 12:00:08,091 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 12:00:08,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 12:00:08,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 12:00:08,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 12:00:08,094 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 12:00:08,095 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 12:00:08,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 12:00:08,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 12:00:08,098 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 12:00:08,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 12:00:08,100 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 12:00:08,100 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 12:00:08,100 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 12:00:08,100 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 12:00:08,101 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 12:00:08,101 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 12:00:08,101 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 12:00:08,101 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 12:00:08,101 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 12:00:08,102 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 12:00:08,102 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 12:00:08,102 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 12:00:08,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 12:00:08,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 12:00:08,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 12:00:08,103 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 12:00:08,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:00:08,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 12:00:08,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 12:00:08,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 12:00:08,104 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 12:00:08,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 12:00:08,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 12:00:08,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 12:00:08,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 12:00:08,544 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 12:00:08,549 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 12:00:08,550 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 12:00:08,551 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 12:00:08,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2022-10-16 12:00:08,643 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/611caea71/fb9fb022f55f4c6e84a16979e1f28e3c/FLAGcaa339fa4 [2022-10-16 12:00:09,239 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 12:00:09,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/double_req_bl_0720.c [2022-10-16 12:00:09,249 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/611caea71/fb9fb022f55f4c6e84a16979e1f28e3c/FLAGcaa339fa4 [2022-10-16 12:00:09,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/611caea71/fb9fb022f55f4c6e84a16979e1f28e3c [2022-10-16 12:00:09,595 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 12:00:09,602 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 12:00:09,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 12:00:09,604 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 12:00:09,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 12:00:09,611 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:09,612 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cbf5ec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09, skipping insertion in model container [2022-10-16 12:00:09,613 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:09,625 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 12:00:09,648 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 12:00:09,876 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/float-newlib/double_req_bl_0720.c[3072,3085] [2022-10-16 12:00:09,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:00:09,894 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 12:00:09,940 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/float-newlib/double_req_bl_0720.c[3072,3085] [2022-10-16 12:00:09,941 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 12:00:09,958 INFO L208 MainTranslator]: Completed translation [2022-10-16 12:00:09,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09 WrapperNode [2022-10-16 12:00:09,959 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 12:00:09,960 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 12:00:09,961 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 12:00:09,961 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 12:00:09,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:09,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,061 INFO L138 Inliner]: procedures = 17, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 205 [2022-10-16 12:00:10,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 12:00:10,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 12:00:10,064 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 12:00:10,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 12:00:10,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,096 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,131 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 12:00:10,145 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 12:00:10,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 12:00:10,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 12:00:10,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (1/1) ... [2022-10-16 12:00:10,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 12:00:10,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:00:10,188 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 12:00:10,213 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 12:00:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 12:00:10,273 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 12:00:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 12:00:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-10-16 12:00:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 12:00:10,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-10-16 12:00:10,275 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 12:00:10,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 12:00:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 12:00:10,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 12:00:10,443 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 12:00:10,451 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 12:00:11,120 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 12:00:11,130 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 12:00:11,131 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-16 12:00:11,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:00:11 BoogieIcfgContainer [2022-10-16 12:00:11,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 12:00:11,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 12:00:11,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 12:00:11,149 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 12:00:11,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:00:09" (1/3) ... [2022-10-16 12:00:11,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63611492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:00:11, skipping insertion in model container [2022-10-16 12:00:11,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:00:09" (2/3) ... [2022-10-16 12:00:11,150 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63611492 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:00:11, skipping insertion in model container [2022-10-16 12:00:11,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:00:11" (3/3) ... [2022-10-16 12:00:11,153 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0720.c [2022-10-16 12:00:11,177 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 12:00:11,178 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2022-10-16 12:00:11,265 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 12:00:11,274 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;@712c6b70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 12:00:11,274 INFO L358 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2022-10-16 12:00:11,280 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 75 states have (on average 1.84) internal successors, (138), 105 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:11,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-16 12:00:11,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:11,289 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:11,290 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:11,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:11,297 INFO L85 PathProgramCache]: Analyzing trace with hash 358329037, now seen corresponding path program 1 times [2022-10-16 12:00:11,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:11,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420520701] [2022-10-16 12:00:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:11,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:11,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:11,514 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 12:00:11,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:11,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420520701] [2022-10-16 12:00:11,516 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420520701] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:11,517 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:11,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:00:11,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897489670] [2022-10-16 12:00:11,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:11,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 12:00:11,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:11,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 12:00:11,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 12:00:11,587 INFO L87 Difference]: Start difference. First operand has 106 states, 75 states have (on average 1.84) internal successors, (138), 105 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:11,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:11,618 INFO L93 Difference]: Finished difference Result 210 states and 274 transitions. [2022-10-16 12:00:11,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 12:00:11,620 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-16 12:00:11,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:11,633 INFO L225 Difference]: With dead ends: 210 [2022-10-16 12:00:11,633 INFO L226 Difference]: Without dead ends: 97 [2022-10-16 12:00:11,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 12:00:11,642 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:11,643 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:00:11,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-10-16 12:00:11,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-10-16 12:00:11,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 67 states have (on average 1.7014925373134329) internal successors, (114), 96 states have internal predecessors, (114), 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 12:00:11,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 114 transitions. [2022-10-16 12:00:11,693 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 114 transitions. Word has length 8 [2022-10-16 12:00:11,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:11,693 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 114 transitions. [2022-10-16 12:00:11,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:11,694 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 114 transitions. [2022-10-16 12:00:11,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 12:00:11,695 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:11,695 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:11,695 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 12:00:11,696 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:11,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:11,697 INFO L85 PathProgramCache]: Analyzing trace with hash 329083344, now seen corresponding path program 1 times [2022-10-16 12:00:11,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:11,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842634180] [2022-10-16 12:00:11,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:11,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:12,008 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 12:00:12,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:12,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842634180] [2022-10-16 12:00:12,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842634180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:12,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:12,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:00:12,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994846290] [2022-10-16 12:00:12,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:12,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:00:12,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:12,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:00:12,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:00:12,019 INFO L87 Difference]: Start difference. First operand 97 states and 114 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:12,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:12,381 INFO L93 Difference]: Finished difference Result 172 states and 205 transitions. [2022-10-16 12:00:12,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:00:12,382 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 12:00:12,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:12,385 INFO L225 Difference]: With dead ends: 172 [2022-10-16 12:00:12,385 INFO L226 Difference]: Without dead ends: 170 [2022-10-16 12:00:12,386 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 12:00:12,388 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 224 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:12,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 128 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:00:12,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-16 12:00:12,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 97. [2022-10-16 12:00:12,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 68 states have (on average 1.6764705882352942) internal successors, (114), 96 states have internal predecessors, (114), 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 12:00:12,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 114 transitions. [2022-10-16 12:00:12,405 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 114 transitions. Word has length 9 [2022-10-16 12:00:12,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:12,406 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 114 transitions. [2022-10-16 12:00:12,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:12,407 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 114 transitions. [2022-10-16 12:00:12,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 12:00:12,407 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:12,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:12,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 12:00:12,408 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:12,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:12,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1611649194, now seen corresponding path program 1 times [2022-10-16 12:00:12,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:12,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565758274] [2022-10-16 12:00:12,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:12,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:12,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:12,551 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 12:00:12,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:12,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565758274] [2022-10-16 12:00:12,552 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565758274] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:12,552 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:12,552 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:00:12,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613042020] [2022-10-16 12:00:12,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:12,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:00:12,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:12,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:00:12,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:00:12,555 INFO L87 Difference]: Start difference. First operand 97 states and 114 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:00:12,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:12,865 INFO L93 Difference]: Finished difference Result 283 states and 337 transitions. [2022-10-16 12:00:12,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:00:12,865 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 10 [2022-10-16 12:00:12,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:12,867 INFO L225 Difference]: With dead ends: 283 [2022-10-16 12:00:12,867 INFO L226 Difference]: Without dead ends: 197 [2022-10-16 12:00:12,868 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 12:00:12,870 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 123 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:12,871 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 341 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:00:12,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-16 12:00:12,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 139. [2022-10-16 12:00:12,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.6818181818181819) internal successors, (185), 138 states have internal predecessors, (185), 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 12:00:12,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 185 transitions. [2022-10-16 12:00:12,886 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 185 transitions. Word has length 10 [2022-10-16 12:00:12,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:12,886 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 185 transitions. [2022-10-16 12:00:12,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 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 12:00:12,887 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 185 transitions. [2022-10-16 12:00:12,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 12:00:12,887 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:12,888 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:12,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 12:00:12,888 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:12,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:12,889 INFO L85 PathProgramCache]: Analyzing trace with hash -1733989873, now seen corresponding path program 1 times [2022-10-16 12:00:12,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:12,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [193254330] [2022-10-16 12:00:12,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:12,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:12,995 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 12:00:12,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:12,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [193254330] [2022-10-16 12:00:12,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [193254330] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:12,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:12,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:00:12,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625326792] [2022-10-16 12:00:12,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:12,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:00:12,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:12,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:00:12,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:00:12,999 INFO L87 Difference]: Start difference. First operand 139 states and 185 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12:00:13,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:13,048 INFO L93 Difference]: Finished difference Result 254 states and 341 transitions. [2022-10-16 12:00:13,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:00:13,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 12:00:13,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:13,053 INFO L225 Difference]: With dead ends: 254 [2022-10-16 12:00:13,054 INFO L226 Difference]: Without dead ends: 250 [2022-10-16 12:00:13,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:00:13,068 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 89 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:13,069 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 276 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:00:13,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-10-16 12:00:13,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 146. [2022-10-16 12:00:13,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 117 states have (on average 1.6666666666666667) internal successors, (195), 145 states have internal predecessors, (195), 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 12:00:13,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 195 transitions. [2022-10-16 12:00:13,106 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 195 transitions. Word has length 12 [2022-10-16 12:00:13,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:13,106 INFO L495 AbstractCegarLoop]: Abstraction has 146 states and 195 transitions. [2022-10-16 12:00:13,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12:00:13,107 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 195 transitions. [2022-10-16 12:00:13,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 12:00:13,108 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:13,108 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:13,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 12:00:13,108 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:13,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:13,113 INFO L85 PathProgramCache]: Analyzing trace with hash 236473603, now seen corresponding path program 1 times [2022-10-16 12:00:13,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:13,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820456388] [2022-10-16 12:00:13,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:13,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:13,270 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 12:00:13,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:13,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820456388] [2022-10-16 12:00:13,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820456388] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:13,271 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:13,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:00:13,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676924422] [2022-10-16 12:00:13,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:13,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:00:13,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:13,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:00:13,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:00:13,273 INFO L87 Difference]: Start difference. First operand 146 states and 195 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12:00:13,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:13,483 INFO L93 Difference]: Finished difference Result 198 states and 238 transitions. [2022-10-16 12:00:13,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:00:13,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 12:00:13,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:13,485 INFO L225 Difference]: With dead ends: 198 [2022-10-16 12:00:13,486 INFO L226 Difference]: Without dead ends: 197 [2022-10-16 12:00:13,486 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 12:00:13,488 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 111 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:13,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 341 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:00:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-16 12:00:13,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 145. [2022-10-16 12:00:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 116 states have (on average 1.6724137931034482) internal successors, (194), 144 states have internal predecessors, (194), 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 12:00:13,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 194 transitions. [2022-10-16 12:00:13,506 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 194 transitions. Word has length 12 [2022-10-16 12:00:13,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:13,507 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 194 transitions. [2022-10-16 12:00:13,507 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 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 12:00:13,507 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 194 transitions. [2022-10-16 12:00:13,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 12:00:13,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:13,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:13,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 12:00:13,509 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:13,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:13,509 INFO L85 PathProgramCache]: Analyzing trace with hash 2080890526, now seen corresponding path program 1 times [2022-10-16 12:00:13,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:13,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096769318] [2022-10-16 12:00:13,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:13,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:13,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:13,602 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 12:00:13,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:13,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096769318] [2022-10-16 12:00:13,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096769318] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:13,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:13,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:00:13,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466389939] [2022-10-16 12:00:13,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:13,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:00:13,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:13,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:00:13,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:00:13,606 INFO L87 Difference]: Start difference. First operand 145 states and 194 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:13,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:13,665 INFO L93 Difference]: Finished difference Result 249 states and 336 transitions. [2022-10-16 12:00:13,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:00:13,666 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-16 12:00:13,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:13,668 INFO L225 Difference]: With dead ends: 249 [2022-10-16 12:00:13,668 INFO L226 Difference]: Without dead ends: 247 [2022-10-16 12:00:13,669 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 12:00:13,672 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 88 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 446 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:13,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 446 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:00:13,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2022-10-16 12:00:13,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 148. [2022-10-16 12:00:13,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 119 states have (on average 1.6554621848739495) internal successors, (197), 147 states have internal predecessors, (197), 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 12:00:13,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 197 transitions. [2022-10-16 12:00:13,693 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 197 transitions. Word has length 13 [2022-10-16 12:00:13,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:13,693 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 197 transitions. [2022-10-16 12:00:13,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:13,694 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 197 transitions. [2022-10-16 12:00:13,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 12:00:13,695 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:13,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:13,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 12:00:13,696 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:13,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash 83046321, now seen corresponding path program 1 times [2022-10-16 12:00:13,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:13,698 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957181827] [2022-10-16 12:00:13,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:13,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:13,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:13,801 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 12:00:13,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:13,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957181827] [2022-10-16 12:00:13,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957181827] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:13,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:13,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:00:13,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077193766] [2022-10-16 12:00:13,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:13,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:00:13,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:13,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:00:13,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:00:13,804 INFO L87 Difference]: Start difference. First operand 148 states and 197 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 12:00:13,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:13,925 INFO L93 Difference]: Finished difference Result 192 states and 227 transitions. [2022-10-16 12:00:13,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:00:13,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 14 [2022-10-16 12:00:13,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:13,928 INFO L225 Difference]: With dead ends: 192 [2022-10-16 12:00:13,928 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 12:00:13,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:00:13,929 INFO L413 NwaCegarLoop]: 161 mSDtfsCounter, 87 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:13,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 383 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:00:13,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 12:00:13,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 154. [2022-10-16 12:00:13,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 125 states have (on average 1.624) internal successors, (203), 153 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:13,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 203 transitions. [2022-10-16 12:00:13,939 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 203 transitions. Word has length 14 [2022-10-16 12:00:13,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:13,940 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 203 transitions. [2022-10-16 12:00:13,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 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 12:00:13,941 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 203 transitions. [2022-10-16 12:00:13,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 12:00:13,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:13,942 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:13,942 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 12:00:13,942 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:13,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:13,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1748191341, now seen corresponding path program 1 times [2022-10-16 12:00:13,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:13,944 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205261555] [2022-10-16 12:00:13,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:13,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:14,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:14,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:14,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205261555] [2022-10-16 12:00:14,010 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205261555] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:00:14,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907121167] [2022-10-16 12:00:14,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:14,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:14,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:00:14,013 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 12:00:14,021 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 12:00:14,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:14,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:00:14,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:00:14,146 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:14,146 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:00:14,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907121167] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:14,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:00:14,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2022-10-16 12:00:14,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030756573] [2022-10-16 12:00:14,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:14,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:00:14,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:14,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:00:14,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:00:14,149 INFO L87 Difference]: Start difference. First operand 154 states and 203 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:14,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:14,195 INFO L93 Difference]: Finished difference Result 247 states and 335 transitions. [2022-10-16 12:00:14,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 12:00:14,196 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 12:00:14,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:14,198 INFO L225 Difference]: With dead ends: 247 [2022-10-16 12:00:14,198 INFO L226 Difference]: Without dead ends: 245 [2022-10-16 12:00:14,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-10-16 12:00:14,200 INFO L413 NwaCegarLoop]: 172 mSDtfsCounter, 92 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:14,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 431 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:00:14,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states. [2022-10-16 12:00:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 151. [2022-10-16 12:00:14,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 124 states have (on average 1.6129032258064515) internal successors, (200), 150 states have internal predecessors, (200), 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 12:00:14,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 200 transitions. [2022-10-16 12:00:14,210 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 200 transitions. Word has length 16 [2022-10-16 12:00:14,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:14,211 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 200 transitions. [2022-10-16 12:00:14,211 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:14,211 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 200 transitions. [2022-10-16 12:00:14,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 12:00:14,212 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:14,212 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:14,251 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 12:00:14,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:14,426 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:14,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:14,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1247020881, now seen corresponding path program 1 times [2022-10-16 12:00:14,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:14,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74290900] [2022-10-16 12:00:14,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:14,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:14,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:14,573 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:14,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:14,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74290900] [2022-10-16 12:00:14,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74290900] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:00:14,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725032281] [2022-10-16 12:00:14,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:14,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:14,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:00:14,576 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 12:00:14,587 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 12:00:14,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:14,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 12:00:14,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:00:14,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:14,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:00:14,748 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:14,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725032281] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:00:14,749 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:00:14,749 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-10-16 12:00:14,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379167209] [2022-10-16 12:00:14,749 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:00:14,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 12:00:14,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:14,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 12:00:14,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:00:14,754 INFO L87 Difference]: Start difference. First operand 151 states and 200 transitions. Second operand has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 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 12:00:14,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:14,854 INFO L93 Difference]: Finished difference Result 261 states and 313 transitions. [2022-10-16 12:00:14,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:00:14,854 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 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 16 [2022-10-16 12:00:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:14,856 INFO L225 Difference]: With dead ends: 261 [2022-10-16 12:00:14,856 INFO L226 Difference]: Without dead ends: 260 [2022-10-16 12:00:14,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:00:14,858 INFO L413 NwaCegarLoop]: 159 mSDtfsCounter, 202 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:14,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [202 Valid, 443 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:00:14,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-10-16 12:00:14,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 160. [2022-10-16 12:00:14,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 133 states have (on average 1.593984962406015) internal successors, (212), 159 states have internal predecessors, (212), 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 12:00:14,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 212 transitions. [2022-10-16 12:00:14,868 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 212 transitions. Word has length 16 [2022-10-16 12:00:14,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:14,869 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 212 transitions. [2022-10-16 12:00:14,869 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.5) internal successors, (27), 7 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 12:00:14,869 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 212 transitions. [2022-10-16 12:00:14,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 12:00:14,870 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:14,870 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:14,909 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 12:00:15,083 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,SelfDestructingSolverStorable8 [2022-10-16 12:00:15,084 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:15,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:15,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1640645018, now seen corresponding path program 1 times [2022-10-16 12:00:15,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:15,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166306419] [2022-10-16 12:00:15,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:15,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:15,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:15,153 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:15,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:15,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166306419] [2022-10-16 12:00:15,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166306419] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:00:15,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093881560] [2022-10-16 12:00:15,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:15,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:15,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:00:15,155 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 12:00:15,186 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 12:00:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:15,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:00:15,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:00:15,280 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:15,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:00:15,341 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:15,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093881560] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:00:15,341 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:00:15,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 12:00:15,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989388892] [2022-10-16 12:00:15,342 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:00:15,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 12:00:15,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:15,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 12:00:15,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:00:15,344 INFO L87 Difference]: Start difference. First operand 160 states and 212 transitions. Second operand has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:15,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:15,556 INFO L93 Difference]: Finished difference Result 591 states and 808 transitions. [2022-10-16 12:00:15,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 12:00:15,557 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 12:00:15,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:15,560 INFO L225 Difference]: With dead ends: 591 [2022-10-16 12:00:15,561 INFO L226 Difference]: Without dead ends: 590 [2022-10-16 12:00:15,561 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2022-10-16 12:00:15,562 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 536 mSDsluCounter, 837 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:15,562 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1008 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:00:15,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2022-10-16 12:00:15,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 171. [2022-10-16 12:00:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 144 states have (on average 1.5833333333333333) internal successors, (228), 170 states have internal predecessors, (228), 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 12:00:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 228 transitions. [2022-10-16 12:00:15,576 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 228 transitions. Word has length 17 [2022-10-16 12:00:15,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:15,577 INFO L495 AbstractCegarLoop]: Abstraction has 171 states and 228 transitions. [2022-10-16 12:00:15,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.727272727272727) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:15,577 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 228 transitions. [2022-10-16 12:00:15,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 12:00:15,578 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:15,578 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:15,614 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 12:00:15,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:15,793 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:15,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:15,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1640643384, now seen corresponding path program 1 times [2022-10-16 12:00:15,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:15,795 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127884605] [2022-10-16 12:00:15,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:15,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:15,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:15,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:15,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:15,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127884605] [2022-10-16 12:00:15,854 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127884605] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:00:15,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632123038] [2022-10-16 12:00:15,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:15,854 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:15,854 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:00:15,855 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 12:00:15,886 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 12:00:15,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:15,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 12:00:15,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:00:15,988 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:15,989 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:00:15,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632123038] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:15,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:00:15,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 12:00:15,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792555868] [2022-10-16 12:00:15,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:15,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:00:15,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:15,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:00:15,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 12:00:15,991 INFO L87 Difference]: Start difference. First operand 171 states and 228 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 12:00:16,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:16,067 INFO L93 Difference]: Finished difference Result 364 states and 497 transitions. [2022-10-16 12:00:16,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:00:16,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 17 [2022-10-16 12:00:16,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:16,072 INFO L225 Difference]: With dead ends: 364 [2022-10-16 12:00:16,072 INFO L226 Difference]: Without dead ends: 361 [2022-10-16 12:00:16,073 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 12:00:16,074 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 178 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 663 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:16,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 663 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:00:16,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-10-16 12:00:16,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 163. [2022-10-16 12:00:16,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 139 states have (on average 1.5539568345323742) internal successors, (216), 162 states have internal predecessors, (216), 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 12:00:16,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 216 transitions. [2022-10-16 12:00:16,090 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 216 transitions. Word has length 17 [2022-10-16 12:00:16,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:16,091 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 216 transitions. [2022-10-16 12:00:16,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 5 states have internal predecessors, (17), 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 12:00:16,091 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 216 transitions. [2022-10-16 12:00:16,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 12:00:16,096 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:16,096 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 12:00:16,133 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 12:00:16,310 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:16,311 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:16,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:16,311 INFO L85 PathProgramCache]: Analyzing trace with hash -679662539, now seen corresponding path program 1 times [2022-10-16 12:00:16,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:16,312 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030679494] [2022-10-16 12:00:16,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:16,313 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:16,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:16,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030679494] [2022-10-16 12:00:16,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030679494] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:00:16,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300777122] [2022-10-16 12:00:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:16,444 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:16,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:00:16,445 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 12:00:16,452 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 12:00:16,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:16,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 12:00:16,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:00:16,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:16,636 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:00:16,636 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300777122] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:16,636 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:00:16,636 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 11 [2022-10-16 12:00:16,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204304160] [2022-10-16 12:00:16,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:16,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:00:16,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:16,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:00:16,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:00:16,638 INFO L87 Difference]: Start difference. First operand 163 states and 216 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 12:00:16,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:16,811 INFO L93 Difference]: Finished difference Result 285 states and 363 transitions. [2022-10-16 12:00:16,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 12:00:16,811 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 12:00:16,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:16,813 INFO L225 Difference]: With dead ends: 285 [2022-10-16 12:00:16,813 INFO L226 Difference]: Without dead ends: 282 [2022-10-16 12:00:16,816 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-10-16 12:00:16,817 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 173 mSDsluCounter, 318 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:16,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 534 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:00:16,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-10-16 12:00:16,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 208. [2022-10-16 12:00:16,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 185 states have (on average 1.572972972972973) internal successors, (291), 207 states have internal predecessors, (291), 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 12:00:16,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 291 transitions. [2022-10-16 12:00:16,839 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 291 transitions. Word has length 18 [2022-10-16 12:00:16,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:16,839 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 291 transitions. [2022-10-16 12:00:16,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 12:00:16,840 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 291 transitions. [2022-10-16 12:00:16,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 12:00:16,840 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:16,840 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 12:00:16,883 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 12:00:17,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-16 12:00:17,054 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:17,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:17,055 INFO L85 PathProgramCache]: Analyzing trace with hash -206169352, now seen corresponding path program 1 times [2022-10-16 12:00:17,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:17,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682487394] [2022-10-16 12:00:17,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:17,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:17,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:17,167 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 12:00:17,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:17,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682487394] [2022-10-16 12:00:17,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682487394] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:17,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:17,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:00:17,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712316623] [2022-10-16 12:00:17,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:17,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:00:17,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:17,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:00:17,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:00:17,170 INFO L87 Difference]: Start difference. First operand 208 states and 291 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 12:00:17,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:17,324 INFO L93 Difference]: Finished difference Result 368 states and 463 transitions. [2022-10-16 12:00:17,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:00:17,324 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 12:00:17,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:17,326 INFO L225 Difference]: With dead ends: 368 [2022-10-16 12:00:17,327 INFO L226 Difference]: Without dead ends: 366 [2022-10-16 12:00:17,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:00:17,328 INFO L413 NwaCegarLoop]: 271 mSDtfsCounter, 253 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:17,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 616 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:00:17,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2022-10-16 12:00:17,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 208. [2022-10-16 12:00:17,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 185 states have (on average 1.572972972972973) internal successors, (291), 207 states have internal predecessors, (291), 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 12:00:17,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 291 transitions. [2022-10-16 12:00:17,342 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 291 transitions. Word has length 18 [2022-10-16 12:00:17,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:17,343 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 291 transitions. [2022-10-16 12:00:17,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 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 12:00:17,343 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 291 transitions. [2022-10-16 12:00:17,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 12:00:17,344 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:17,344 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 12:00:17,344 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-16 12:00:17,344 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:17,345 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:17,345 INFO L85 PathProgramCache]: Analyzing trace with hash 405297882, now seen corresponding path program 1 times [2022-10-16 12:00:17,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:17,345 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565100357] [2022-10-16 12:00:17,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:17,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:17,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:17,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565100357] [2022-10-16 12:00:17,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565100357] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:00:17,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215096527] [2022-10-16 12:00:17,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:17,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:17,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:00:17,467 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 12:00:17,476 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 12:00:17,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:17,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 12:00:17,551 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:00:17,622 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:17,622 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 12:00:17,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215096527] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:17,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 12:00:17,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-16 12:00:17,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793000706] [2022-10-16 12:00:17,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:17,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 12:00:17,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:17,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 12:00:17,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2022-10-16 12:00:17,626 INFO L87 Difference]: Start difference. First operand 208 states and 291 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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 12:00:17,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:17,704 INFO L93 Difference]: Finished difference Result 250 states and 322 transitions. [2022-10-16 12:00:17,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:00:17,704 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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 12:00:17,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:17,706 INFO L225 Difference]: With dead ends: 250 [2022-10-16 12:00:17,706 INFO L226 Difference]: Without dead ends: 249 [2022-10-16 12:00:17,707 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-10-16 12:00:17,707 INFO L413 NwaCegarLoop]: 156 mSDtfsCounter, 74 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:17,708 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 360 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:00:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2022-10-16 12:00:17,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 226. [2022-10-16 12:00:17,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 203 states have (on average 1.5467980295566504) internal successors, (314), 225 states have internal predecessors, (314), 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 12:00:17,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 314 transitions. [2022-10-16 12:00:17,726 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 314 transitions. Word has length 19 [2022-10-16 12:00:17,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:17,728 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 314 transitions. [2022-10-16 12:00:17,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 5 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 12:00:17,729 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 314 transitions. [2022-10-16 12:00:17,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 12:00:17,729 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:17,729 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 12:00:17,769 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 12:00:17,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:17,945 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:17,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:17,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2096282494, now seen corresponding path program 1 times [2022-10-16 12:00:17,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:17,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897146961] [2022-10-16 12:00:17,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:17,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:17,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:18,043 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 12:00:18,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:18,043 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897146961] [2022-10-16 12:00:18,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897146961] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:18,043 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:18,044 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 12:00:18,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287370926] [2022-10-16 12:00:18,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:18,044 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 12:00:18,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:18,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 12:00:18,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:00:18,045 INFO L87 Difference]: Start difference. First operand 226 states and 314 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 12:00:18,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:18,144 INFO L93 Difference]: Finished difference Result 254 states and 326 transitions. [2022-10-16 12:00:18,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 12:00:18,145 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 12:00:18,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:18,147 INFO L225 Difference]: With dead ends: 254 [2022-10-16 12:00:18,147 INFO L226 Difference]: Without dead ends: 253 [2022-10-16 12:00:18,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 12:00:18,153 INFO L413 NwaCegarLoop]: 155 mSDtfsCounter, 88 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:18,153 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 436 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:00:18,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2022-10-16 12:00:18,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 234. [2022-10-16 12:00:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 211 states have (on average 1.5260663507109005) internal successors, (322), 233 states have internal predecessors, (322), 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 12:00:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 322 transitions. [2022-10-16 12:00:18,171 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 322 transitions. Word has length 19 [2022-10-16 12:00:18,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:18,172 INFO L495 AbstractCegarLoop]: Abstraction has 234 states and 322 transitions. [2022-10-16 12:00:18,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 6 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 12:00:18,172 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 322 transitions. [2022-10-16 12:00:18,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 12:00:18,173 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:18,173 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 12:00:18,174 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-16 12:00:18,174 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:18,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:18,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1922866839, now seen corresponding path program 1 times [2022-10-16 12:00:18,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:18,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449261585] [2022-10-16 12:00:18,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:18,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:19,378 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 12:00:19,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:19,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449261585] [2022-10-16 12:00:19,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449261585] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:19,378 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:19,378 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:00:19,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506436798] [2022-10-16 12:00:19,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:19,379 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 12:00:19,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:19,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 12:00:19,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 12:00:19,380 INFO L87 Difference]: Start difference. First operand 234 states and 322 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 12:00:19,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:19,672 INFO L93 Difference]: Finished difference Result 256 states and 352 transitions. [2022-10-16 12:00:19,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 12:00:19,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 12:00:19,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:19,674 INFO L225 Difference]: With dead ends: 256 [2022-10-16 12:00:19,675 INFO L226 Difference]: Without dead ends: 255 [2022-10-16 12:00:19,675 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 12:00:19,676 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 7 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:19,676 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 213 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 12:00:19,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-10-16 12:00:19,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 243. [2022-10-16 12:00:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 220 states have (on average 1.5318181818181817) internal successors, (337), 242 states have internal predecessors, (337), 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 12:00:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 337 transitions. [2022-10-16 12:00:19,695 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 337 transitions. Word has length 19 [2022-10-16 12:00:19,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:19,695 INFO L495 AbstractCegarLoop]: Abstraction has 243 states and 337 transitions. [2022-10-16 12:00:19,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 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 12:00:19,695 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 337 transitions. [2022-10-16 12:00:19,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 12:00:19,696 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:19,696 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] [2022-10-16 12:00:19,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 12:00:19,697 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:19,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:19,697 INFO L85 PathProgramCache]: Analyzing trace with hash 520670301, now seen corresponding path program 1 times [2022-10-16 12:00:19,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:19,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544518287] [2022-10-16 12:00:19,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:19,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:19,769 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 12:00:19,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:19,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544518287] [2022-10-16 12:00:19,770 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544518287] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:19,770 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:19,770 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 12:00:19,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506811898] [2022-10-16 12:00:19,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:19,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:00:19,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:19,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:00:19,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:00:19,772 INFO L87 Difference]: Start difference. First operand 243 states and 337 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 12:00:19,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:19,857 INFO L93 Difference]: Finished difference Result 243 states and 337 transitions. [2022-10-16 12:00:19,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:00:19,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-10-16 12:00:19,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:19,859 INFO L225 Difference]: With dead ends: 243 [2022-10-16 12:00:19,859 INFO L226 Difference]: Without dead ends: 241 [2022-10-16 12:00:19,860 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 12:00:19,860 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 9 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:19,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 156 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 12:00:19,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2022-10-16 12:00:19,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2022-10-16 12:00:19,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 220 states have (on average 1.5045454545454546) internal successors, (331), 240 states have internal predecessors, (331), 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 12:00:19,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 331 transitions. [2022-10-16 12:00:19,880 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 331 transitions. Word has length 20 [2022-10-16 12:00:19,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:19,881 INFO L495 AbstractCegarLoop]: Abstraction has 241 states and 331 transitions. [2022-10-16 12:00:19,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 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 12:00:19,881 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 331 transitions. [2022-10-16 12:00:19,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 12:00:19,882 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:19,882 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] [2022-10-16 12:00:19,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-16 12:00:19,882 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:19,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:19,883 INFO L85 PathProgramCache]: Analyzing trace with hash 144496983, now seen corresponding path program 1 times [2022-10-16 12:00:19,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:19,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610185398] [2022-10-16 12:00:19,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:19,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:20,005 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:20,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:20,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610185398] [2022-10-16 12:00:20,005 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610185398] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:00:20,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355019958] [2022-10-16 12:00:20,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:20,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:20,006 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:00:20,007 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 12:00:20,030 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 12:00:20,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:20,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 12:00:20,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 12:00:20,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:20,150 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 12:00:20,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:20,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355019958] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 12:00:20,188 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 12:00:20,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-10-16 12:00:20,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216679530] [2022-10-16 12:00:20,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 12:00:20,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 12:00:20,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:20,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 12:00:20,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2022-10-16 12:00:20,190 INFO L87 Difference]: Start difference. First operand 241 states and 331 transitions. Second operand has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:20,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:20,491 INFO L93 Difference]: Finished difference Result 390 states and 494 transitions. [2022-10-16 12:00:20,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 12:00:20,492 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-16 12:00:20,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:20,494 INFO L225 Difference]: With dead ends: 390 [2022-10-16 12:00:20,494 INFO L226 Difference]: Without dead ends: 388 [2022-10-16 12:00:20,495 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=125, Unknown=0, NotChecked=0, Total=210 [2022-10-16 12:00:20,495 INFO L413 NwaCegarLoop]: 197 mSDtfsCounter, 408 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 408 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:20,496 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [408 Valid, 633 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 12:00:20,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states. [2022-10-16 12:00:20,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 250. [2022-10-16 12:00:20,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 229 states have (on average 1.4890829694323144) internal successors, (341), 249 states have internal predecessors, (341), 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 12:00:20,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 341 transitions. [2022-10-16 12:00:20,524 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 341 transitions. Word has length 20 [2022-10-16 12:00:20,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:20,525 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 341 transitions. [2022-10-16 12:00:20,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.555555555555555) internal successors, (41), 10 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 12:00:20,526 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 341 transitions. [2022-10-16 12:00:20,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 12:00:20,526 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:20,526 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] [2022-10-16 12:00:20,574 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 12:00:20,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:20,740 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:20,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:20,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1040560049, now seen corresponding path program 1 times [2022-10-16 12:00:20,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:20,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938531852] [2022-10-16 12:00:20,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:20,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:20,827 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 12:00:20,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:20,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938531852] [2022-10-16 12:00:20,827 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938531852] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 12:00:20,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 12:00:20,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 12:00:20,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066370525] [2022-10-16 12:00:20,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 12:00:20,828 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 12:00:20,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 12:00:20,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 12:00:20,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 12:00:20,841 INFO L87 Difference]: Start difference. First operand 250 states and 341 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 12:00:20,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 12:00:20,883 INFO L93 Difference]: Finished difference Result 356 states and 498 transitions. [2022-10-16 12:00:20,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 12:00:20,884 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-10-16 12:00:20,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 12:00:20,885 INFO L225 Difference]: With dead ends: 356 [2022-10-16 12:00:20,885 INFO L226 Difference]: Without dead ends: 256 [2022-10-16 12:00:20,886 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 12:00:20,887 INFO L413 NwaCegarLoop]: 101 mSDtfsCounter, 5 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 12:00:20,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 193 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 12:00:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-10-16 12:00:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 250. [2022-10-16 12:00:20,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 229 states have (on average 1.4759825327510918) internal successors, (338), 249 states have internal predecessors, (338), 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 12:00:20,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 338 transitions. [2022-10-16 12:00:20,906 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 338 transitions. Word has length 21 [2022-10-16 12:00:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 12:00:20,906 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 338 transitions. [2022-10-16 12:00:20,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 12:00:20,907 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 338 transitions. [2022-10-16 12:00:20,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 12:00:20,907 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 12:00:20,908 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 12:00:20,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-16 12:00:20,908 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2022-10-16 12:00:20,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 12:00:20,909 INFO L85 PathProgramCache]: Analyzing trace with hash -2141296040, now seen corresponding path program 1 times [2022-10-16 12:00:20,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 12:00:20,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697377668] [2022-10-16 12:00:20,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:20,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 12:00:21,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:21,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 12:00:21,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 12:00:21,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697377668] [2022-10-16 12:00:21,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697377668] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 12:00:21,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505518253] [2022-10-16 12:00:21,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 12:00:21,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 12:00:21,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 12:00:21,820 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 12:00:21,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 12:00:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 12:00:23,388 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 12:00:23,396 INFO L286 TraceCheckSpWp]: Computing forward predicates...