./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Parts.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/Parts.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 08:44:16,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 08:44:16,196 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 08:44:16,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 08:44:16,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 08:44:16,236 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 08:44:16,237 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 08:44:16,242 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 08:44:16,244 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 08:44:16,249 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 08:44:16,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 08:44:16,251 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 08:44:16,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 08:44:16,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 08:44:16,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 08:44:16,258 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 08:44:16,259 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 08:44:16,260 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 08:44:16,261 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 08:44:16,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 08:44:16,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 08:44:16,269 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 08:44:16,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 08:44:16,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 08:44:16,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 08:44:16,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 08:44:16,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 08:44:16,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 08:44:16,275 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 08:44:16,276 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 08:44:16,276 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 08:44:16,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 08:44:16,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 08:44:16,279 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 08:44:16,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 08:44:16,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 08:44:16,280 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 08:44:16,280 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 08:44:16,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 08:44:16,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 08:44:16,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 08:44:16,283 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-28 08:44:16,311 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 08:44:16,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 08:44:16,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 08:44:16,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 08:44:16,313 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 08:44:16,313 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 08:44:16,314 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 08:44:16,314 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 08:44:16,314 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 08:44:16,314 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 08:44:16,315 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 08:44:16,315 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 08:44:16,315 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 08:44:16,315 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 08:44:16,315 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 08:44:16,316 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 08:44:16,316 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-28 08:44:16,316 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 08:44:16,316 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 08:44:16,316 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 08:44:16,316 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 08:44:16,316 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 08:44:16,317 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 08:44:16,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:44:16,317 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 08:44:16,317 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 08:44:16,317 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 08:44:16,317 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 08:44:16,317 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 08:44:16,318 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 08:44:16,318 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 [2021-12-28 08:44:16,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 08:44:16,608 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 08:44:16,610 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 08:44:16,611 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 08:44:16,612 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 08:44:16,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Parts.c [2021-12-28 08:44:16,675 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44184632/94e36d0ea7c74c4f869e9c19f5361ded/FLAG10a43ac8b [2021-12-28 08:44:17,052 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 08:44:17,053 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Parts.c [2021-12-28 08:44:17,057 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44184632/94e36d0ea7c74c4f869e9c19f5361ded/FLAG10a43ac8b [2021-12-28 08:44:17,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a44184632/94e36d0ea7c74c4f869e9c19f5361ded [2021-12-28 08:44:17,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 08:44:17,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 08:44:17,070 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 08:44:17,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 08:44:17,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 08:44:17,073 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35a6bd16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17, skipping insertion in model container [2021-12-28 08:44:17,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 08:44:17,086 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 08:44:17,166 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:44:17,169 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 08:44:17,177 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:44:17,194 INFO L208 MainTranslator]: Completed translation [2021-12-28 08:44:17,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17 WrapperNode [2021-12-28 08:44:17,195 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 08:44:17,196 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 08:44:17,196 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 08:44:17,196 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 08:44:17,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,243 INFO L137 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2021-12-28 08:44:17,244 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 08:44:17,244 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 08:44:17,244 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 08:44:17,244 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 08:44:17,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,250 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,254 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 08:44:17,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 08:44:17,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 08:44:17,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 08:44:17,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (1/1) ... [2021-12-28 08:44:17,261 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:44:17,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:17,276 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) [2021-12-28 08:44:17,294 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 [2021-12-28 08:44:17,299 INFO L130 BoogieDeclarations]: Found specification of procedure parts [2021-12-28 08:44:17,300 INFO L138 BoogieDeclarations]: Found implementation of procedure parts [2021-12-28 08:44:17,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 08:44:17,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 08:44:17,333 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 08:44:17,334 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 08:44:17,470 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 08:44:17,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 08:44:17,476 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 08:44:17,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:44:17 BoogieIcfgContainer [2021-12-28 08:44:17,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 08:44:17,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 08:44:17,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 08:44:17,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 08:44:17,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 08:44:17" (1/3) ... [2021-12-28 08:44:17,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb28f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:44:17, skipping insertion in model container [2021-12-28 08:44:17,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:44:17" (2/3) ... [2021-12-28 08:44:17,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fb28f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:44:17, skipping insertion in model container [2021-12-28 08:44:17,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:44:17" (3/3) ... [2021-12-28 08:44:17,496 INFO L111 eAbstractionObserver]: Analyzing ICFG Parts.c [2021-12-28 08:44:17,499 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 08:44:17,499 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-12-28 08:44:17,545 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 08:44:17,553 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 08:44:17,554 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-12-28 08:44:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 39 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-28 08:44:17,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 08:44:17,574 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:17,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:17,576 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:17,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:17,586 INFO L85 PathProgramCache]: Analyzing trace with hash -602953989, now seen corresponding path program 1 times [2021-12-28 08:44:17,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:17,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616406588] [2021-12-28 08:44:17,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:17,596 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:17,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,711 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:17,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:17,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616406588] [2021-12-28 08:44:17,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616406588] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:17,713 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:17,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:44:17,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688755777] [2021-12-28 08:44:17,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:17,724 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-28 08:44:17,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:17,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-28 08:44:17,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-28 08:44:17,747 INFO L87 Difference]: Start difference. First operand has 45 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 39 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2021-12-28 08:44:17,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:17,769 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2021-12-28 08:44:17,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-28 08:44:17,771 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 [2021-12-28 08:44:17,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:17,779 INFO L225 Difference]: With dead ends: 86 [2021-12-28 08:44:17,780 INFO L226 Difference]: Without dead ends: 42 [2021-12-28 08:44:17,783 INFO L932 BasicCegarLoop]: 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 [2021-12-28 08:44:17,786 INFO L933 BasicCegarLoop]: 54 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, 54 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 [2021-12-28 08:44:17,787 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:17,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-28 08:44:17,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-28 08:44:17,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 36 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-28 08:44:17,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2021-12-28 08:44:17,821 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 8 [2021-12-28 08:44:17,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:17,822 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2021-12-28 08:44:17,822 INFO L471 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) [2021-12-28 08:44:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2021-12-28 08:44:17,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 08:44:17,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:17,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:17,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 08:44:17,824 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:17,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:17,827 INFO L85 PathProgramCache]: Analyzing trace with hash -602965521, now seen corresponding path program 1 times [2021-12-28 08:44:17,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:17,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829292961] [2021-12-28 08:44:17,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:17,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:17,865 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:17,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829292961] [2021-12-28 08:44:17,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829292961] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:17,865 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:17,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:44:17,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721505918] [2021-12-28 08:44:17,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:17,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:44:17,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:17,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:44:17,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:44:17,867 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:17,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:17,893 INFO L93 Difference]: Finished difference Result 81 states and 96 transitions. [2021-12-28 08:44:17,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 08:44:17,893 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-28 08:44:17,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:17,894 INFO L225 Difference]: With dead ends: 81 [2021-12-28 08:44:17,894 INFO L226 Difference]: Without dead ends: 43 [2021-12-28 08:44:17,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:17,896 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 21 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:17,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 113 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:17,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-12-28 08:44:17,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-12-28 08:44:17,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.5) internal successors, (42), 37 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-28 08:44:17,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2021-12-28 08:44:17,902 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 8 [2021-12-28 08:44:17,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:17,902 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2021-12-28 08:44:17,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:17,903 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2021-12-28 08:44:17,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-28 08:44:17,908 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:17,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:17,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 08:44:17,910 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:17,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:17,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1944725597, now seen corresponding path program 1 times [2021-12-28 08:44:17,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:17,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529662046] [2021-12-28 08:44:17,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:17,912 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:17,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:17,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:17,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529662046] [2021-12-28 08:44:17,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529662046] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:17,959 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:17,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 08:44:17,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153419895] [2021-12-28 08:44:17,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:17,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:17,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:17,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:17,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:17,960 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:18,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:18,033 INFO L93 Difference]: Finished difference Result 103 states and 123 transitions. [2021-12-28 08:44:18,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:44:18,033 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-28 08:44:18,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:18,035 INFO L225 Difference]: With dead ends: 103 [2021-12-28 08:44:18,035 INFO L226 Difference]: Without dead ends: 64 [2021-12-28 08:44:18,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:44:18,037 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 17 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:18,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 167 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:18,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-28 08:44:18,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2021-12-28 08:44:18,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 47 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-28 08:44:18,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2021-12-28 08:44:18,051 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 12 [2021-12-28 08:44:18,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:18,051 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2021-12-28 08:44:18,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:44:18,051 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2021-12-28 08:44:18,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-28 08:44:18,052 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:18,052 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:18,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 08:44:18,052 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:18,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:18,053 INFO L85 PathProgramCache]: Analyzing trace with hash 565418330, now seen corresponding path program 1 times [2021-12-28 08:44:18,053 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:18,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731278116] [2021-12-28 08:44:18,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:18,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:18,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:18,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731278116] [2021-12-28 08:44:18,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731278116] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:18,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:18,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 08:44:18,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758183650] [2021-12-28 08:44:18,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:18,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:44:18,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:18,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:44:18,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:44:18,119 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:18,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:18,157 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2021-12-28 08:44:18,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:18,157 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-12-28 08:44:18,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:18,158 INFO L225 Difference]: With dead ends: 67 [2021-12-28 08:44:18,158 INFO L226 Difference]: Without dead ends: 66 [2021-12-28 08:44:18,159 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:18,159 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 5 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:18,160 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 131 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:18,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-12-28 08:44:18,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2021-12-28 08:44:18,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 53 states have internal predecessors, (61), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-28 08:44:18,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2021-12-28 08:44:18,181 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 14 [2021-12-28 08:44:18,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:18,181 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2021-12-28 08:44:18,181 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:18,181 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2021-12-28 08:44:18,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-28 08:44:18,182 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:18,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:18,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 08:44:18,182 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:18,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash 348099144, now seen corresponding path program 1 times [2021-12-28 08:44:18,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:18,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454255332] [2021-12-28 08:44:18,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:18,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:18,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:18,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454255332] [2021-12-28 08:44:18,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454255332] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:18,214 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:18,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 08:44:18,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696342631] [2021-12-28 08:44:18,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:18,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:44:18,215 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:18,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:44:18,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:44:18,216 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:18,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:18,231 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2021-12-28 08:44:18,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 08:44:18,232 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-28 08:44:18,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:18,232 INFO L225 Difference]: With dead ends: 63 [2021-12-28 08:44:18,232 INFO L226 Difference]: Without dead ends: 62 [2021-12-28 08:44:18,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:18,234 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 10 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:18,234 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 118 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:18,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-28 08:44:18,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-12-28 08:44:18,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 52 states have internal predecessors, (59), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-28 08:44:18,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2021-12-28 08:44:18,243 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 15 [2021-12-28 08:44:18,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:18,243 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2021-12-28 08:44:18,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:18,243 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2021-12-28 08:44:18,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-28 08:44:18,244 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:18,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:18,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 08:44:18,244 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:18,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:18,244 INFO L85 PathProgramCache]: Analyzing trace with hash -2124333102, now seen corresponding path program 1 times [2021-12-28 08:44:18,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:18,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625266318] [2021-12-28 08:44:18,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:18,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 08:44:18,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:18,274 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625266318] [2021-12-28 08:44:18,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625266318] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:18,274 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:18,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 08:44:18,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057784322] [2021-12-28 08:44:18,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:18,274 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:44:18,274 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:18,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:44:18,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:44:18,275 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:18,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:18,300 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2021-12-28 08:44:18,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:18,300 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-12-28 08:44:18,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:18,301 INFO L225 Difference]: With dead ends: 68 [2021-12-28 08:44:18,301 INFO L226 Difference]: Without dead ends: 67 [2021-12-28 08:44:18,301 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:18,302 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 6 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:18,302 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 129 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:18,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-12-28 08:44:18,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2021-12-28 08:44:18,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.326086956521739) internal successors, (61), 54 states have internal predecessors, (61), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-28 08:44:18,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2021-12-28 08:44:18,308 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 18 [2021-12-28 08:44:18,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:18,309 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2021-12-28 08:44:18,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:18,309 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2021-12-28 08:44:18,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-28 08:44:18,309 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:18,309 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:18,309 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-28 08:44:18,309 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:18,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:18,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1429816616, now seen corresponding path program 1 times [2021-12-28 08:44:18,310 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:18,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897939020] [2021-12-28 08:44:18,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,310 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:18,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-28 08:44:18,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:18,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897939020] [2021-12-28 08:44:18,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897939020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:18,340 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:18,340 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 08:44:18,340 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711266314] [2021-12-28 08:44:18,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:18,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:44:18,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:18,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:44:18,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:44:18,341 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:18,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:18,353 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2021-12-28 08:44:18,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 08:44:18,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-12-28 08:44:18,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:18,354 INFO L225 Difference]: With dead ends: 64 [2021-12-28 08:44:18,354 INFO L226 Difference]: Without dead ends: 63 [2021-12-28 08:44:18,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:18,355 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:18,355 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:18,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-28 08:44:18,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-28 08:44:18,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 53 states have internal predecessors, (60), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-28 08:44:18,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2021-12-28 08:44:18,360 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 19 [2021-12-28 08:44:18,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:18,361 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2021-12-28 08:44:18,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:18,361 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2021-12-28 08:44:18,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-28 08:44:18,361 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:18,361 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:18,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-28 08:44:18,362 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:18,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:18,362 INFO L85 PathProgramCache]: Analyzing trace with hash -637261571, now seen corresponding path program 1 times [2021-12-28 08:44:18,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:18,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788946641] [2021-12-28 08:44:18,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:18,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,405 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 08:44:18,406 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:18,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788946641] [2021-12-28 08:44:18,406 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788946641] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:18,406 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985522949] [2021-12-28 08:44:18,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,406 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:18,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:18,407 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) [2021-12-28 08:44:18,425 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 08:44:18,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-28 08:44:18,447 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 08:44:18,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:18,566 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-28 08:44:18,566 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985522949] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:18,566 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:18,566 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-12-28 08:44:18,566 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620096066] [2021-12-28 08:44:18,566 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:18,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-28 08:44:18,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:18,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 08:44:18,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-28 08:44:18,567 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-28 08:44:18,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:18,626 INFO L93 Difference]: Finished difference Result 123 states and 151 transitions. [2021-12-28 08:44:18,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-28 08:44:18,626 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 24 [2021-12-28 08:44:18,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:18,627 INFO L225 Difference]: With dead ends: 123 [2021-12-28 08:44:18,627 INFO L226 Difference]: Without dead ends: 122 [2021-12-28 08:44:18,628 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-28 08:44:18,628 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 36 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:18,629 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 263 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:18,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-12-28 08:44:18,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 99. [2021-12-28 08:44:18,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.263157894736842) internal successors, (96), 83 states have internal predecessors, (96), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-28 08:44:18,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 122 transitions. [2021-12-28 08:44:18,637 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 122 transitions. Word has length 24 [2021-12-28 08:44:18,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:18,638 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 122 transitions. [2021-12-28 08:44:18,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-28 08:44:18,638 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 122 transitions. [2021-12-28 08:44:18,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-28 08:44:18,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:18,639 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:18,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-28 08:44:18,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:18,857 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:18,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:18,858 INFO L85 PathProgramCache]: Analyzing trace with hash 21903950, now seen corresponding path program 1 times [2021-12-28 08:44:18,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:18,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65791505] [2021-12-28 08:44:18,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:18,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:18,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:18,976 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:18,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:18,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65791505] [2021-12-28 08:44:18,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65791505] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:18,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223786782] [2021-12-28 08:44:18,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:18,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:18,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:18,978 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) [2021-12-28 08:44:18,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 08:44:19,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 08:44:19,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:19,172 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:19,172 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:44:19,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223786782] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:19,232 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:19,232 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2021-12-28 08:44:19,232 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675433662] [2021-12-28 08:44:19,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:19,233 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 08:44:19,233 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:19,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 08:44:19,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-12-28 08:44:19,235 INFO L87 Difference]: Start difference. First operand 99 states and 122 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-28 08:44:19,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:19,334 INFO L93 Difference]: Finished difference Result 164 states and 200 transitions. [2021-12-28 08:44:19,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 08:44:19,334 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-12-28 08:44:19,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:19,335 INFO L225 Difference]: With dead ends: 164 [2021-12-28 08:44:19,335 INFO L226 Difference]: Without dead ends: 101 [2021-12-28 08:44:19,336 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2021-12-28 08:44:19,337 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 27 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:19,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 315 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:19,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-28 08:44:19,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-12-28 08:44:19,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.25) internal successors, (95), 83 states have internal predecessors, (95), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-28 08:44:19,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2021-12-28 08:44:19,344 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 121 transitions. Word has length 27 [2021-12-28 08:44:19,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:19,344 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 121 transitions. [2021-12-28 08:44:19,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-28 08:44:19,344 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 121 transitions. [2021-12-28 08:44:19,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-28 08:44:19,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:19,345 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:19,361 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-12-28 08:44:19,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-28 08:44:19,561 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:19,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:19,561 INFO L85 PathProgramCache]: Analyzing trace with hash -19567733, now seen corresponding path program 2 times [2021-12-28 08:44:19,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:19,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343827570] [2021-12-28 08:44:19,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:19,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:19,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:19,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,616 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-28 08:44:19,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:19,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343827570] [2021-12-28 08:44:19,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343827570] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:19,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:19,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 08:44:19,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517847825] [2021-12-28 08:44:19,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:19,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:19,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:19,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:19,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:19,618 INFO L87 Difference]: Start difference. First operand 99 states and 121 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:19,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:19,644 INFO L93 Difference]: Finished difference Result 169 states and 212 transitions. [2021-12-28 08:44:19,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:44:19,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-12-28 08:44:19,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:19,645 INFO L225 Difference]: With dead ends: 169 [2021-12-28 08:44:19,645 INFO L226 Difference]: Without dead ends: 110 [2021-12-28 08:44:19,646 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:44:19,646 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 12 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:19,647 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 171 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:19,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-12-28 08:44:19,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2021-12-28 08:44:19,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 90 states have internal predecessors, (103), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-28 08:44:19,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2021-12-28 08:44:19,654 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 37 [2021-12-28 08:44:19,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:19,654 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-12-28 08:44:19,655 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-12-28 08:44:19,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-28 08:44:19,655 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:19,656 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:19,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-28 08:44:19,656 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:19,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:19,656 INFO L85 PathProgramCache]: Analyzing trace with hash -1293096832, now seen corresponding path program 1 times [2021-12-28 08:44:19,656 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:19,656 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830822772] [2021-12-28 08:44:19,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:19,657 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:19,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:19,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,715 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-28 08:44:19,715 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:19,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830822772] [2021-12-28 08:44:19,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830822772] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:19,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1402835311] [2021-12-28 08:44:19,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:19,716 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:19,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:19,717 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) [2021-12-28 08:44:19,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 08:44:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:19,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 08:44:19,763 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:19,856 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-28 08:44:19,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 08:44:19,857 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1402835311] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:19,857 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 08:44:19,857 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-12-28 08:44:19,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318706355] [2021-12-28 08:44:19,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:19,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 08:44:19,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:19,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 08:44:19,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-28 08:44:19,859 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-28 08:44:19,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:19,938 INFO L93 Difference]: Finished difference Result 184 states and 224 transitions. [2021-12-28 08:44:19,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 08:44:19,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2021-12-28 08:44:19,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:19,941 INFO L225 Difference]: With dead ends: 184 [2021-12-28 08:44:19,941 INFO L226 Difference]: Without dead ends: 118 [2021-12-28 08:44:19,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-28 08:44:19,944 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:19,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 167 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:19,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-28 08:44:19,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2021-12-28 08:44:19,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 94 states have internal predecessors, (109), 13 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2021-12-28 08:44:19,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 138 transitions. [2021-12-28 08:44:19,966 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 138 transitions. Word has length 43 [2021-12-28 08:44:19,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:19,966 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 138 transitions. [2021-12-28 08:44:19,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-28 08:44:19,966 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 138 transitions. [2021-12-28 08:44:19,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-28 08:44:19,972 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:19,972 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:19,994 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:20,188 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:20,189 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:20,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:20,189 INFO L85 PathProgramCache]: Analyzing trace with hash 1218630964, now seen corresponding path program 1 times [2021-12-28 08:44:20,189 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:20,189 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218199801] [2021-12-28 08:44:20,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:20,190 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:20,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:20,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:20,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,254 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-28 08:44:20,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:20,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218199801] [2021-12-28 08:44:20,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218199801] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:20,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108095616] [2021-12-28 08:44:20,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:20,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:20,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:20,256 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) [2021-12-28 08:44:20,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 08:44:20,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 08:44:20,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-28 08:44:20,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:20,485 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-28 08:44:20,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108095616] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:20,486 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:20,486 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2021-12-28 08:44:20,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485138209] [2021-12-28 08:44:20,488 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:20,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 08:44:20,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:20,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 08:44:20,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:44:20,492 INFO L87 Difference]: Start difference. First operand 114 states and 138 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-28 08:44:20,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:20,602 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2021-12-28 08:44:20,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-28 08:44:20,603 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2021-12-28 08:44:20,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:20,604 INFO L225 Difference]: With dead ends: 184 [2021-12-28 08:44:20,604 INFO L226 Difference]: Without dead ends: 114 [2021-12-28 08:44:20,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2021-12-28 08:44:20,605 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 33 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:20,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 302 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:20,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-12-28 08:44:20,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-12-28 08:44:20,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 88 states have (on average 1.2272727272727273) internal successors, (108), 94 states have internal predecessors, (108), 13 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2021-12-28 08:44:20,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2021-12-28 08:44:20,618 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 44 [2021-12-28 08:44:20,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:20,619 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2021-12-28 08:44:20,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-28 08:44:20,620 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2021-12-28 08:44:20,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-28 08:44:20,622 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:20,622 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:20,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:20,838 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:20,839 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:20,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:20,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1696880930, now seen corresponding path program 1 times [2021-12-28 08:44:20,841 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:20,841 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678241123] [2021-12-28 08:44:20,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:20,841 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:20,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:20,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:20,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:20,902 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 08:44:20,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:20,902 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678241123] [2021-12-28 08:44:20,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678241123] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:20,903 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1198350640] [2021-12-28 08:44:20,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:20,903 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:20,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:20,932 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) [2021-12-28 08:44:20,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 08:44:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 08:44:21,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:21,132 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 08:44:21,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:21,283 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-28 08:44:21,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1198350640] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:21,283 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:21,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2021-12-28 08:44:21,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6117855] [2021-12-28 08:44:21,283 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:21,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-28 08:44:21,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:21,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-28 08:44:21,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-12-28 08:44:21,284 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-28 08:44:21,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:21,557 INFO L93 Difference]: Finished difference Result 197 states and 260 transitions. [2021-12-28 08:44:21,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 08:44:21,558 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2021-12-28 08:44:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:21,559 INFO L225 Difference]: With dead ends: 197 [2021-12-28 08:44:21,559 INFO L226 Difference]: Without dead ends: 195 [2021-12-28 08:44:21,559 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-12-28 08:44:21,560 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 164 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:21,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 214 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:44:21,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-12-28 08:44:21,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 173. [2021-12-28 08:44:21,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 137 states have (on average 1.2335766423357664) internal successors, (169), 141 states have internal predecessors, (169), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2021-12-28 08:44:21,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 217 transitions. [2021-12-28 08:44:21,569 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 217 transitions. Word has length 48 [2021-12-28 08:44:21,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:21,570 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 217 transitions. [2021-12-28 08:44:21,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-28 08:44:21,570 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 217 transitions. [2021-12-28 08:44:21,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-28 08:44:21,570 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:21,570 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:21,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:21,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-28 08:44:21,787 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:21,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:21,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1063701326, now seen corresponding path program 1 times [2021-12-28 08:44:21,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:21,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945500750] [2021-12-28 08:44:21,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:21,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:21,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-28 08:44:21,832 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:21,832 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945500750] [2021-12-28 08:44:21,832 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945500750] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:21,832 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:21,832 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:44:21,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575406759] [2021-12-28 08:44:21,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:21,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:44:21,833 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:21,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:44:21,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:44:21,833 INFO L87 Difference]: Start difference. First operand 173 states and 217 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:21,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:21,847 INFO L93 Difference]: Finished difference Result 181 states and 241 transitions. [2021-12-28 08:44:21,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:44:21,847 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-12-28 08:44:21,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:21,848 INFO L225 Difference]: With dead ends: 181 [2021-12-28 08:44:21,848 INFO L226 Difference]: Without dead ends: 180 [2021-12-28 08:44:21,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:44:21,849 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:21,849 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 70 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:21,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-12-28 08:44:21,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 172. [2021-12-28 08:44:21,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 137 states have (on average 1.218978102189781) internal successors, (167), 140 states have internal predecessors, (167), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2021-12-28 08:44:21,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 215 transitions. [2021-12-28 08:44:21,858 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 215 transitions. Word has length 49 [2021-12-28 08:44:21,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:21,858 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 215 transitions. [2021-12-28 08:44:21,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-28 08:44:21,858 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 215 transitions. [2021-12-28 08:44:21,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-28 08:44:21,859 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:21,859 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:21,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-28 08:44:21,859 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:21,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:21,860 INFO L85 PathProgramCache]: Analyzing trace with hash -2029586074, now seen corresponding path program 2 times [2021-12-28 08:44:21,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:21,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876190760] [2021-12-28 08:44:21,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:21,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:21,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:21,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 08:44:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-28 08:44:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:21,937 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 08:44:21,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:21,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876190760] [2021-12-28 08:44:21,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876190760] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:21,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830995696] [2021-12-28 08:44:21,937 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:21,937 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:21,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:21,952 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) [2021-12-28 08:44:21,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 08:44:22,008 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:22,008 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:22,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-28 08:44:22,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:22,087 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 08:44:22,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:22,230 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-28 08:44:22,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [830995696] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:22,231 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:22,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2021-12-28 08:44:22,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469158435] [2021-12-28 08:44:22,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:22,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-28 08:44:22,231 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:22,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-28 08:44:22,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2021-12-28 08:44:22,232 INFO L87 Difference]: Start difference. First operand 172 states and 215 transitions. Second operand has 22 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 22 states have internal predecessors, (57), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-28 08:44:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:22,378 INFO L93 Difference]: Finished difference Result 356 states and 452 transitions. [2021-12-28 08:44:22,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-28 08:44:22,378 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 22 states have internal predecessors, (57), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 54 [2021-12-28 08:44:22,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:22,380 INFO L225 Difference]: With dead ends: 356 [2021-12-28 08:44:22,380 INFO L226 Difference]: Without dead ends: 355 [2021-12-28 08:44:22,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2021-12-28 08:44:22,381 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 149 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:22,381 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 377 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:22,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-12-28 08:44:22,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 280. [2021-12-28 08:44:22,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 227 states have (on average 1.2114537444933922) internal successors, (275), 230 states have internal predecessors, (275), 39 states have call successors, (39), 6 states have call predecessors, (39), 8 states have return successors, (45), 43 states have call predecessors, (45), 39 states have call successors, (45) [2021-12-28 08:44:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 359 transitions. [2021-12-28 08:44:22,393 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 359 transitions. Word has length 54 [2021-12-28 08:44:22,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:22,393 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 359 transitions. [2021-12-28 08:44:22,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 22 states have internal predecessors, (57), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-28 08:44:22,393 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 359 transitions. [2021-12-28 08:44:22,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-28 08:44:22,394 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:22,394 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:22,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:22,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-28 08:44:22,611 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:22,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:22,612 INFO L85 PathProgramCache]: Analyzing trace with hash -1963933763, now seen corresponding path program 2 times [2021-12-28 08:44:22,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:22,612 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125651899] [2021-12-28 08:44:22,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:22,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:22,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 08:44:22,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:22,700 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-28 08:44:22,700 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:22,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125651899] [2021-12-28 08:44:22,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125651899] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:22,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [961888922] [2021-12-28 08:44:22,700 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:22,700 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:22,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:22,718 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) [2021-12-28 08:44:22,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-28 08:44:22,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:22,783 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:22,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-28 08:44:22,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:22,887 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-28 08:44:22,887 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:23,087 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-28 08:44:23,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [961888922] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:23,088 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:23,088 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2021-12-28 08:44:23,088 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105577007] [2021-12-28 08:44:23,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:23,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-28 08:44:23,088 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:23,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-28 08:44:23,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-12-28 08:44:23,089 INFO L87 Difference]: Start difference. First operand 280 states and 359 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-28 08:44:23,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:23,586 INFO L93 Difference]: Finished difference Result 431 states and 554 transitions. [2021-12-28 08:44:23,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-28 08:44:23,586 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 55 [2021-12-28 08:44:23,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:23,588 INFO L225 Difference]: With dead ends: 431 [2021-12-28 08:44:23,588 INFO L226 Difference]: Without dead ends: 429 [2021-12-28 08:44:23,589 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=627, Invalid=2235, Unknown=0, NotChecked=0, Total=2862 [2021-12-28 08:44:23,590 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 125 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:23,590 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 428 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:23,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-12-28 08:44:23,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 175. [2021-12-28 08:44:23,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 141 states have (on average 1.2056737588652482) internal successors, (170), 143 states have internal predecessors, (170), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2021-12-28 08:44:23,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2021-12-28 08:44:23,616 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 55 [2021-12-28 08:44:23,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:23,616 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2021-12-28 08:44:23,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-28 08:44:23,617 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2021-12-28 08:44:23,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-28 08:44:23,617 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:23,617 INFO L514 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:23,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:23,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:23,832 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:23,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:23,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1328814042, now seen corresponding path program 1 times [2021-12-28 08:44:23,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:23,832 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220635920] [2021-12-28 08:44:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:23,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:23,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:23,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-28 08:44:23,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:23,930 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 14 proven. 23 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-28 08:44:23,930 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:23,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220635920] [2021-12-28 08:44:23,931 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220635920] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:23,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023703768] [2021-12-28 08:44:23,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:23,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:23,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:23,932 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) [2021-12-28 08:44:24,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-28 08:44:24,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 08:44:24,018 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:24,128 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-28 08:44:24,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:24,223 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-28 08:44:24,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023703768] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:24,223 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:24,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 14 [2021-12-28 08:44:24,224 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744751911] [2021-12-28 08:44:24,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:24,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-28 08:44:24,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:24,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-28 08:44:24,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-12-28 08:44:24,225 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-12-28 08:44:24,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:24,613 INFO L93 Difference]: Finished difference Result 362 states and 491 transitions. [2021-12-28 08:44:24,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-28 08:44:24,614 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 61 [2021-12-28 08:44:24,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:24,616 INFO L225 Difference]: With dead ends: 362 [2021-12-28 08:44:24,616 INFO L226 Difference]: Without dead ends: 277 [2021-12-28 08:44:24,617 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=160, Invalid=832, Unknown=0, NotChecked=0, Total=992 [2021-12-28 08:44:24,617 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 205 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:24,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 282 Invalid, 523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:44:24,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-12-28 08:44:24,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 236. [2021-12-28 08:44:24,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 189 states have (on average 1.2275132275132274) internal successors, (232), 193 states have internal predecessors, (232), 29 states have call successors, (29), 10 states have call predecessors, (29), 13 states have return successors, (36), 32 states have call predecessors, (36), 29 states have call successors, (36) [2021-12-28 08:44:24,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 297 transitions. [2021-12-28 08:44:24,644 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 297 transitions. Word has length 61 [2021-12-28 08:44:24,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:24,644 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 297 transitions. [2021-12-28 08:44:24,644 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 8 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2021-12-28 08:44:24,645 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 297 transitions. [2021-12-28 08:44:24,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-28 08:44:24,645 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:24,645 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:24,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-28 08:44:24,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-28 08:44:24,863 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:24,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:24,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1961639078, now seen corresponding path program 1 times [2021-12-28 08:44:24,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:24,864 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720828625] [2021-12-28 08:44:24,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:24,864 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:24,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:24,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:24,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 08:44:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 08:44:24,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,905 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-28 08:44:24,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:24,906 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720828625] [2021-12-28 08:44:24,906 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720828625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:24,906 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:24,906 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:44:24,906 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164849919] [2021-12-28 08:44:24,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:24,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:24,907 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:24,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:24,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:24,907 INFO L87 Difference]: Start difference. First operand 236 states and 297 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 08:44:24,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:24,935 INFO L93 Difference]: Finished difference Result 331 states and 457 transitions. [2021-12-28 08:44:24,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:44:24,935 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 64 [2021-12-28 08:44:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:24,937 INFO L225 Difference]: With dead ends: 331 [2021-12-28 08:44:24,937 INFO L226 Difference]: Without dead ends: 330 [2021-12-28 08:44:24,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:44:24,938 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 11 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:24,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 152 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:24,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-12-28 08:44:24,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 288. [2021-12-28 08:44:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 229 states have (on average 1.2008733624454149) internal successors, (275), 231 states have internal predecessors, (275), 34 states have call successors, (34), 10 states have call predecessors, (34), 20 states have return successors, (76), 46 states have call predecessors, (76), 34 states have call successors, (76) [2021-12-28 08:44:24,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 385 transitions. [2021-12-28 08:44:24,951 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 385 transitions. Word has length 64 [2021-12-28 08:44:24,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:24,951 INFO L470 AbstractCegarLoop]: Abstraction has 288 states and 385 transitions. [2021-12-28 08:44:24,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 08:44:24,952 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 385 transitions. [2021-12-28 08:44:24,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-28 08:44:24,952 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:24,952 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:24,952 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-28 08:44:24,953 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:24,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:24,953 INFO L85 PathProgramCache]: Analyzing trace with hash -681269214, now seen corresponding path program 1 times [2021-12-28 08:44:24,953 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:24,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679856982] [2021-12-28 08:44:24,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:24,953 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:24,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:24,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:24,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:24,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 08:44:24,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 08:44:24,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:24,992 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-28 08:44:24,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:24,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679856982] [2021-12-28 08:44:24,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679856982] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:24,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:44:24,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-28 08:44:24,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637181030] [2021-12-28 08:44:24,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:24,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:24,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:24,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:24,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:44:24,994 INFO L87 Difference]: Start difference. First operand 288 states and 385 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 08:44:25,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:25,030 INFO L93 Difference]: Finished difference Result 451 states and 647 transitions. [2021-12-28 08:44:25,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:25,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 65 [2021-12-28 08:44:25,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:25,032 INFO L225 Difference]: With dead ends: 451 [2021-12-28 08:44:25,032 INFO L226 Difference]: Without dead ends: 261 [2021-12-28 08:44:25,033 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-28 08:44:25,033 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:25,034 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 96 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:25,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2021-12-28 08:44:25,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 261. [2021-12-28 08:44:25,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 205 states have (on average 1.1853658536585365) internal successors, (243), 213 states have internal predecessors, (243), 34 states have call successors, (34), 10 states have call predecessors, (34), 17 states have return successors, (59), 37 states have call predecessors, (59), 34 states have call successors, (59) [2021-12-28 08:44:25,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 336 transitions. [2021-12-28 08:44:25,046 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 336 transitions. Word has length 65 [2021-12-28 08:44:25,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:25,046 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 336 transitions. [2021-12-28 08:44:25,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 08:44:25,046 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 336 transitions. [2021-12-28 08:44:25,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-12-28 08:44:25,047 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:25,047 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:25,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-28 08:44:25,047 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:25,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:25,048 INFO L85 PathProgramCache]: Analyzing trace with hash 505993054, now seen corresponding path program 2 times [2021-12-28 08:44:25,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:25,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416367461] [2021-12-28 08:44:25,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:25,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:25,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 08:44:25,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 08:44:25,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,091 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-28 08:44:25,092 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:25,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416367461] [2021-12-28 08:44:25,092 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416367461] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:25,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1994068222] [2021-12-28 08:44:25,092 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:25,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:25,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:25,093 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:25,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-28 08:44:25,124 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:25,124 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:25,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 08:44:25,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2021-12-28 08:44:25,201 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 08:44:25,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1994068222] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:25,201 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 08:44:25,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2021-12-28 08:44:25,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433858483] [2021-12-28 08:44:25,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:25,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:25,202 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:25,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:25,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-28 08:44:25,203 INFO L87 Difference]: Start difference. First operand 261 states and 336 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 08:44:25,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:25,223 INFO L93 Difference]: Finished difference Result 280 states and 363 transitions. [2021-12-28 08:44:25,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:25,223 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 66 [2021-12-28 08:44:25,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:25,224 INFO L225 Difference]: With dead ends: 280 [2021-12-28 08:44:25,224 INFO L226 Difference]: Without dead ends: 279 [2021-12-28 08:44:25,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-12-28 08:44:25,225 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:25,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 110 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:25,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2021-12-28 08:44:25,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 276. [2021-12-28 08:44:25,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 220 states have (on average 1.1954545454545455) internal successors, (263), 223 states have internal predecessors, (263), 34 states have call successors, (34), 10 states have call predecessors, (34), 17 states have return successors, (59), 42 states have call predecessors, (59), 34 states have call successors, (59) [2021-12-28 08:44:25,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 356 transitions. [2021-12-28 08:44:25,237 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 356 transitions. Word has length 66 [2021-12-28 08:44:25,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:25,237 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 356 transitions. [2021-12-28 08:44:25,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-28 08:44:25,238 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 356 transitions. [2021-12-28 08:44:25,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2021-12-28 08:44:25,239 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:25,239 INFO L514 BasicCegarLoop]: trace histogram [10, 8, 6, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:25,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:25,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:25,455 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:25,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:25,456 INFO L85 PathProgramCache]: Analyzing trace with hash 924442603, now seen corresponding path program 1 times [2021-12-28 08:44:25,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:25,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368168417] [2021-12-28 08:44:25,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:25,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:25,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:25,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 08:44:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-12-28 08:44:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-28 08:44:25,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:25,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,503 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 73 proven. 43 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-12-28 08:44:25,503 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:25,503 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368168417] [2021-12-28 08:44:25,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368168417] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:25,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920178188] [2021-12-28 08:44:25,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:25,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:25,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:25,520 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:25,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-28 08:44:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:25,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 08:44:25,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:25,684 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2021-12-28 08:44:25,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 08:44:25,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920178188] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:25,685 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 08:44:25,685 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 8 [2021-12-28 08:44:25,685 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190498722] [2021-12-28 08:44:25,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:25,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 08:44:25,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:25,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 08:44:25,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-12-28 08:44:25,686 INFO L87 Difference]: Start difference. First operand 276 states and 356 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-28 08:44:25,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:25,777 INFO L93 Difference]: Finished difference Result 545 states and 750 transitions. [2021-12-28 08:44:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-28 08:44:25,777 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 101 [2021-12-28 08:44:25,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:25,779 INFO L225 Difference]: With dead ends: 545 [2021-12-28 08:44:25,779 INFO L226 Difference]: Without dead ends: 364 [2021-12-28 08:44:25,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2021-12-28 08:44:25,780 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 43 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:25,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 128 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:25,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-12-28 08:44:25,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 361. [2021-12-28 08:44:25,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 291 states have (on average 1.2096219931271477) internal successors, (352), 284 states have internal predecessors, (352), 44 states have call successors, (44), 10 states have call predecessors, (44), 21 states have return successors, (102), 66 states have call predecessors, (102), 44 states have call successors, (102) [2021-12-28 08:44:25,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 498 transitions. [2021-12-28 08:44:25,797 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 498 transitions. Word has length 101 [2021-12-28 08:44:25,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:25,797 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 498 transitions. [2021-12-28 08:44:25,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 4 states have call successors, (7), 2 states have call predecessors, (7), 3 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2021-12-28 08:44:25,797 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 498 transitions. [2021-12-28 08:44:25,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-28 08:44:25,798 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:25,798 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:25,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:26,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-28 08:44:26,027 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:26,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:26,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1778803619, now seen corresponding path program 1 times [2021-12-28 08:44:26,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:26,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594345604] [2021-12-28 08:44:26,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:26,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:26,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:26,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:26,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:26,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 08:44:26,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-28 08:44:26,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:26,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,115 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-12-28 08:44:26,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:26,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594345604] [2021-12-28 08:44:26,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594345604] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:26,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545176192] [2021-12-28 08:44:26,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:26,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:26,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:26,116 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:26,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-28 08:44:26,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-28 08:44:26,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:26,300 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-12-28 08:44:26,301 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:26,493 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-12-28 08:44:26,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545176192] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:26,494 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:26,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 12 [2021-12-28 08:44:26,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882798723] [2021-12-28 08:44:26,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:26,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 08:44:26,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:26,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 08:44:26,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:44:26,495 INFO L87 Difference]: Start difference. First operand 361 states and 498 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-28 08:44:26,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:26,688 INFO L93 Difference]: Finished difference Result 608 states and 871 transitions. [2021-12-28 08:44:26,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 08:44:26,690 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 85 [2021-12-28 08:44:26,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:26,691 INFO L225 Difference]: With dead ends: 608 [2021-12-28 08:44:26,691 INFO L226 Difference]: Without dead ends: 339 [2021-12-28 08:44:26,693 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-12-28 08:44:26,694 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 113 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:26,694 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [118 Valid, 153 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:26,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2021-12-28 08:44:26,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 330. [2021-12-28 08:44:26,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 266 states have (on average 1.1541353383458646) internal successors, (307), 264 states have internal predecessors, (307), 40 states have call successors, (40), 16 states have call predecessors, (40), 20 states have return successors, (57), 49 states have call predecessors, (57), 40 states have call successors, (57) [2021-12-28 08:44:26,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 404 transitions. [2021-12-28 08:44:26,720 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 404 transitions. Word has length 85 [2021-12-28 08:44:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:26,720 INFO L470 AbstractCegarLoop]: Abstraction has 330 states and 404 transitions. [2021-12-28 08:44:26,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-28 08:44:26,721 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 404 transitions. [2021-12-28 08:44:26,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-28 08:44:26,721 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:26,721 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:26,747 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:26,935 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-28 08:44:26,935 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:26,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:26,936 INFO L85 PathProgramCache]: Analyzing trace with hash 804951081, now seen corresponding path program 2 times [2021-12-28 08:44:26,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:26,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457021308] [2021-12-28 08:44:26,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:26,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:26,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:26,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:26,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:27,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-28 08:44:27,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:27,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-28 08:44:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 27 proven. 41 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-12-28 08:44:27,069 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:27,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457021308] [2021-12-28 08:44:27,069 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457021308] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:27,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79873194] [2021-12-28 08:44:27,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:27,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:27,070 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:27,084 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:27,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-28 08:44:27,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:27,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:27,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 08:44:27,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:27,245 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-12-28 08:44:27,245 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 08:44:27,246 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79873194] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:44:27,246 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 08:44:27,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2021-12-28 08:44:27,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655702341] [2021-12-28 08:44:27,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:44:27,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:44:27,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:27,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:44:27,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-12-28 08:44:27,248 INFO L87 Difference]: Start difference. First operand 330 states and 404 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 08:44:27,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:27,266 INFO L93 Difference]: Finished difference Result 331 states and 404 transitions. [2021-12-28 08:44:27,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:27,266 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2021-12-28 08:44:27,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:27,268 INFO L225 Difference]: With dead ends: 331 [2021-12-28 08:44:27,268 INFO L226 Difference]: Without dead ends: 330 [2021-12-28 08:44:27,269 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-12-28 08:44:27,269 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 7 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:27,269 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 149 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:27,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-12-28 08:44:27,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 286. [2021-12-28 08:44:27,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 230 states have (on average 1.1434782608695653) internal successors, (263), 234 states have internal predecessors, (263), 33 states have call successors, (33), 16 states have call predecessors, (33), 19 states have return successors, (44), 35 states have call predecessors, (44), 33 states have call successors, (44) [2021-12-28 08:44:27,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 340 transitions. [2021-12-28 08:44:27,295 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 340 transitions. Word has length 86 [2021-12-28 08:44:27,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:27,295 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 340 transitions. [2021-12-28 08:44:27,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-28 08:44:27,295 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 340 transitions. [2021-12-28 08:44:27,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-12-28 08:44:27,297 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:27,297 INFO L514 BasicCegarLoop]: trace histogram [11, 10, 6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:27,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:27,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-12-28 08:44:27,513 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:27,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:27,513 INFO L85 PathProgramCache]: Analyzing trace with hash -793317901, now seen corresponding path program 3 times [2021-12-28 08:44:27,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:27,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366505724] [2021-12-28 08:44:27,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:27,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:27,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-28 08:44:27,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-28 08:44:27,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:27,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 08:44:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2021-12-28 08:44:27,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:27,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:27,611 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 40 proven. 55 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2021-12-28 08:44:27,611 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:27,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366505724] [2021-12-28 08:44:27,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366505724] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:27,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122394942] [2021-12-28 08:44:27,611 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:44:27,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:27,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:27,628 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:27,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-28 08:44:27,733 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-12-28 08:44:27,733 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:27,734 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-28 08:44:27,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:28,078 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 159 proven. 32 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-28 08:44:28,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:28,377 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 37 proven. 50 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2021-12-28 08:44:28,378 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122394942] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:28,378 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:28,378 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 30 [2021-12-28 08:44:28,378 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079556415] [2021-12-28 08:44:28,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:28,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-28 08:44:28,379 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:28,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-28 08:44:28,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=780, Unknown=0, NotChecked=0, Total=870 [2021-12-28 08:44:28,380 INFO L87 Difference]: Start difference. First operand 286 states and 340 transitions. Second operand has 30 states, 30 states have (on average 3.5) internal successors, (105), 28 states have internal predecessors, (105), 13 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2021-12-28 08:44:29,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:29,302 INFO L93 Difference]: Finished difference Result 486 states and 581 transitions. [2021-12-28 08:44:29,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-12-28 08:44:29,302 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 28 states have internal predecessors, (105), 13 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) Word has length 116 [2021-12-28 08:44:29,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:29,303 INFO L225 Difference]: With dead ends: 486 [2021-12-28 08:44:29,303 INFO L226 Difference]: Without dead ends: 298 [2021-12-28 08:44:29,305 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 764 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=506, Invalid=3034, Unknown=0, NotChecked=0, Total=3540 [2021-12-28 08:44:29,306 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 246 mSDsluCounter, 1023 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1077 SdHoareTripleChecker+Invalid, 921 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:29,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 1077 Invalid, 921 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 08:44:29,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2021-12-28 08:44:29,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 283. [2021-12-28 08:44:29,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 229 states have (on average 1.1266375545851528) internal successors, (258), 232 states have internal predecessors, (258), 31 states have call successors, (31), 16 states have call predecessors, (31), 19 states have return successors, (40), 34 states have call predecessors, (40), 31 states have call successors, (40) [2021-12-28 08:44:29,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 329 transitions. [2021-12-28 08:44:29,327 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 329 transitions. Word has length 116 [2021-12-28 08:44:29,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:29,327 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 329 transitions. [2021-12-28 08:44:29,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.5) internal successors, (105), 28 states have internal predecessors, (105), 13 states have call successors, (18), 4 states have call predecessors, (18), 2 states have return successors, (15), 11 states have call predecessors, (15), 11 states have call successors, (15) [2021-12-28 08:44:29,328 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 329 transitions. [2021-12-28 08:44:29,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-28 08:44:29,329 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:29,330 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:29,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:29,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-28 08:44:29,543 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:29,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:29,544 INFO L85 PathProgramCache]: Analyzing trace with hash 895586552, now seen corresponding path program 3 times [2021-12-28 08:44:29,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:29,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739564106] [2021-12-28 08:44:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:29,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:29,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:29,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 08:44:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-28 08:44:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 08:44:29,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 08:44:29,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 08:44:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 08:44:29,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 08:44:29,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 08:44:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:29,795 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-28 08:44:29,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:29,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739564106] [2021-12-28 08:44:29,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739564106] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:29,795 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [199093615] [2021-12-28 08:44:29,796 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:44:29,796 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:29,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:29,797 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:29,844 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-28 08:44:29,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-28 08:44:29,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:29,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-28 08:44:29,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:30,061 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-28 08:44:30,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:30,582 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-28 08:44:30,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [199093615] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:30,583 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:30,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2021-12-28 08:44:30,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053408425] [2021-12-28 08:44:30,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:30,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-12-28 08:44:30,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:30,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-12-28 08:44:30,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2021-12-28 08:44:30,585 INFO L87 Difference]: Start difference. First operand 283 states and 329 transitions. Second operand has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-28 08:44:31,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:31,000 INFO L93 Difference]: Finished difference Result 747 states and 906 transitions. [2021-12-28 08:44:31,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-28 08:44:31,000 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 114 [2021-12-28 08:44:31,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:31,003 INFO L225 Difference]: With dead ends: 747 [2021-12-28 08:44:31,003 INFO L226 Difference]: Without dead ends: 746 [2021-12-28 08:44:31,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2021-12-28 08:44:31,005 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 325 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 388 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:31,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 388 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:31,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2021-12-28 08:44:31,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 355. [2021-12-28 08:44:31,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 289 states have (on average 1.1418685121107266) internal successors, (330), 292 states have internal predecessors, (330), 43 states have call successors, (43), 16 states have call predecessors, (43), 19 states have return successors, (52), 46 states have call predecessors, (52), 43 states have call successors, (52) [2021-12-28 08:44:31,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 425 transitions. [2021-12-28 08:44:31,019 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 425 transitions. Word has length 114 [2021-12-28 08:44:31,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:31,020 INFO L470 AbstractCegarLoop]: Abstraction has 355 states and 425 transitions. [2021-12-28 08:44:31,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-28 08:44:31,020 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 425 transitions. [2021-12-28 08:44:31,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-28 08:44:31,021 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:31,021 INFO L514 BasicCegarLoop]: trace histogram [13, 11, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:31,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:31,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:31,235 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:31,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:31,236 INFO L85 PathProgramCache]: Analyzing trace with hash -999556663, now seen corresponding path program 2 times [2021-12-28 08:44:31,236 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:31,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529635522] [2021-12-28 08:44:31,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:31,236 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:31,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:31,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:31,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:31,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:31,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:31,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-28 08:44:31,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-28 08:44:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:31,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:31,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 89 proven. 82 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-12-28 08:44:31,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:31,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529635522] [2021-12-28 08:44:31,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529635522] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:31,325 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817296687] [2021-12-28 08:44:31,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:31,325 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:31,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:31,326 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:31,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-28 08:44:31,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:31,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:31,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-28 08:44:31,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 89 proven. 82 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-12-28 08:44:31,538 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:31,716 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 89 proven. 82 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-12-28 08:44:31,716 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817296687] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:31,716 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:31,716 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 14 [2021-12-28 08:44:31,716 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297955108] [2021-12-28 08:44:31,716 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:31,717 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-28 08:44:31,717 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:31,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-28 08:44:31,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-12-28 08:44:31,718 INFO L87 Difference]: Start difference. First operand 355 states and 425 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2021-12-28 08:44:31,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:31,924 INFO L93 Difference]: Finished difference Result 502 states and 602 transitions. [2021-12-28 08:44:31,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-28 08:44:31,925 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) Word has length 131 [2021-12-28 08:44:31,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:31,926 INFO L225 Difference]: With dead ends: 502 [2021-12-28 08:44:31,926 INFO L226 Difference]: Without dead ends: 358 [2021-12-28 08:44:31,927 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-12-28 08:44:31,927 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 139 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 285 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 285 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:31,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 186 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 285 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:31,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-12-28 08:44:31,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 350. [2021-12-28 08:44:31,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 285 states have (on average 1.1298245614035087) internal successors, (322), 288 states have internal predecessors, (322), 43 states have call successors, (43), 17 states have call predecessors, (43), 18 states have return successors, (48), 44 states have call predecessors, (48), 43 states have call successors, (48) [2021-12-28 08:44:31,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 413 transitions. [2021-12-28 08:44:31,943 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 413 transitions. Word has length 131 [2021-12-28 08:44:31,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:31,943 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 413 transitions. [2021-12-28 08:44:31,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2021-12-28 08:44:31,943 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 413 transitions. [2021-12-28 08:44:31,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2021-12-28 08:44:31,944 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:31,944 INFO L514 BasicCegarLoop]: trace histogram [15, 14, 9, 9, 9, 8, 8, 8, 8, 8, 6, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:31,963 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:32,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-28 08:44:32,161 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:32,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:32,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1094447814, now seen corresponding path program 1 times [2021-12-28 08:44:32,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:32,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264888643] [2021-12-28 08:44:32,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:32,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:32,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:32,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:32,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:32,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:32,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:32,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:32,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-28 08:44:32,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-28 08:44:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-28 08:44:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,229 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 203 proven. 35 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-12-28 08:44:32,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:32,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264888643] [2021-12-28 08:44:32,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264888643] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:32,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260121128] [2021-12-28 08:44:32,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:32,230 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:32,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:32,239 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:32,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-28 08:44:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:32,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 08:44:32,314 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:32,526 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 383 proven. 1 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2021-12-28 08:44:32,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:32,739 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 203 proven. 35 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-12-28 08:44:32,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260121128] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:32,739 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:32,740 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2021-12-28 08:44:32,740 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622663932] [2021-12-28 08:44:32,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:32,740 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-28 08:44:32,740 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:32,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-28 08:44:32,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-28 08:44:32,749 INFO L87 Difference]: Start difference. First operand 350 states and 413 transitions. Second operand has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 08:44:32,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:32,797 INFO L93 Difference]: Finished difference Result 489 states and 576 transitions. [2021-12-28 08:44:32,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 08:44:32,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 163 [2021-12-28 08:44:32,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:32,799 INFO L225 Difference]: With dead ends: 489 [2021-12-28 08:44:32,799 INFO L226 Difference]: Without dead ends: 354 [2021-12-28 08:44:32,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 350 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-28 08:44:32,800 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:32,800 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 104 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:32,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states. [2021-12-28 08:44:32,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 350. [2021-12-28 08:44:32,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 350 states, 285 states have (on average 1.1298245614035087) internal successors, (322), 288 states have internal predecessors, (322), 43 states have call successors, (43), 17 states have call predecessors, (43), 18 states have return successors, (46), 44 states have call predecessors, (46), 43 states have call successors, (46) [2021-12-28 08:44:32,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 411 transitions. [2021-12-28 08:44:32,813 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 411 transitions. Word has length 163 [2021-12-28 08:44:32,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:32,814 INFO L470 AbstractCegarLoop]: Abstraction has 350 states and 411 transitions. [2021-12-28 08:44:32,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.857142857142858) internal successors, (69), 7 states have internal predecessors, (69), 3 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 08:44:32,814 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 411 transitions. [2021-12-28 08:44:32,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-28 08:44:32,815 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:32,815 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 10, 9, 9, 8, 8, 8, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:32,835 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:33,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-28 08:44:33,031 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:33,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:33,032 INFO L85 PathProgramCache]: Analyzing trace with hash -457737177, now seen corresponding path program 2 times [2021-12-28 08:44:33,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:33,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356530675] [2021-12-28 08:44:33,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:33,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:33,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:33,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:33,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:33,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:33,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:33,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:33,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:33,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:33,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 08:44:33,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:33,128 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 58 proven. 159 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2021-12-28 08:44:33,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:33,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356530675] [2021-12-28 08:44:33,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356530675] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:33,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825524854] [2021-12-28 08:44:33,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:33,129 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:33,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:33,130 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:33,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-28 08:44:33,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:33,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:33,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-28 08:44:33,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:33,589 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 387 proven. 10 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2021-12-28 08:44:33,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:33,970 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 275 proven. 70 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2021-12-28 08:44:33,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825524854] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:33,970 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:33,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 14] total 27 [2021-12-28 08:44:33,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829663952] [2021-12-28 08:44:33,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:33,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 08:44:33,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:33,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 08:44:33,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2021-12-28 08:44:33,971 INFO L87 Difference]: Start difference. First operand 350 states and 411 transitions. Second operand has 27 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 15 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 11 states have call predecessors, (18), 15 states have call successors, (18) [2021-12-28 08:44:34,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:34,610 INFO L93 Difference]: Finished difference Result 622 states and 740 transitions. [2021-12-28 08:44:34,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-28 08:44:34,610 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 15 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 11 states have call predecessors, (18), 15 states have call successors, (18) Word has length 183 [2021-12-28 08:44:34,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:34,612 INFO L225 Difference]: With dead ends: 622 [2021-12-28 08:44:34,612 INFO L226 Difference]: Without dead ends: 512 [2021-12-28 08:44:34,613 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 382 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=279, Invalid=1977, Unknown=0, NotChecked=0, Total=2256 [2021-12-28 08:44:34,614 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 303 mSDsluCounter, 388 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:34,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [312 Valid, 424 Invalid, 1138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 08:44:34,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-12-28 08:44:34,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 466. [2021-12-28 08:44:34,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 380 states have (on average 1.1289473684210527) internal successors, (429), 382 states have internal predecessors, (429), 56 states have call successors, (56), 22 states have call predecessors, (56), 26 states have return successors, (77), 61 states have call predecessors, (77), 56 states have call successors, (77) [2021-12-28 08:44:34,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 562 transitions. [2021-12-28 08:44:34,633 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 562 transitions. Word has length 183 [2021-12-28 08:44:34,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:34,634 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 562 transitions. [2021-12-28 08:44:34,634 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 15 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 11 states have call predecessors, (18), 15 states have call successors, (18) [2021-12-28 08:44:34,634 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 562 transitions. [2021-12-28 08:44:34,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-28 08:44:34,636 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:34,636 INFO L514 BasicCegarLoop]: trace histogram [20, 18, 13, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:34,654 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:34,852 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-28 08:44:34,852 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:34,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:34,852 INFO L85 PathProgramCache]: Analyzing trace with hash 1250905414, now seen corresponding path program 3 times [2021-12-28 08:44:34,852 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:34,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198603496] [2021-12-28 08:44:34,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:34,853 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:34,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:34,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:34,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:34,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:34,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:34,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:34,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:34,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:34,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:34,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:34,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:34,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-28 08:44:34,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 222 proven. 14 refuted. 0 times theorem prover too weak. 853 trivial. 0 not checked. [2021-12-28 08:44:34,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:34,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198603496] [2021-12-28 08:44:34,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198603496] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:34,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375911613] [2021-12-28 08:44:34,965 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:44:34,965 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:34,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:34,966 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:34,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-28 08:44:35,029 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-28 08:44:35,029 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:35,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 08:44:35,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:35,283 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 132 proven. 12 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-12-28 08:44:35,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 132 proven. 12 refuted. 0 times theorem prover too weak. 945 trivial. 0 not checked. [2021-12-28 08:44:35,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375911613] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:35,597 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:35,598 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 16 [2021-12-28 08:44:35,598 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795390251] [2021-12-28 08:44:35,598 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:35,598 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-12-28 08:44:35,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:35,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-12-28 08:44:35,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2021-12-28 08:44:35,599 INFO L87 Difference]: Start difference. First operand 466 states and 562 transitions. Second operand has 17 states, 14 states have (on average 6.785714285714286) internal successors, (95), 14 states have internal predecessors, (95), 11 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2021-12-28 08:44:35,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:35,801 INFO L93 Difference]: Finished difference Result 651 states and 802 transitions. [2021-12-28 08:44:35,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-28 08:44:35,801 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 6.785714285714286) internal successors, (95), 14 states have internal predecessors, (95), 11 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 211 [2021-12-28 08:44:35,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:35,804 INFO L225 Difference]: With dead ends: 651 [2021-12-28 08:44:35,804 INFO L226 Difference]: Without dead ends: 634 [2021-12-28 08:44:35,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 454 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=513, Unknown=0, NotChecked=0, Total=650 [2021-12-28 08:44:35,805 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 108 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:35,805 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 299 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:35,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2021-12-28 08:44:35,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 567. [2021-12-28 08:44:35,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 457 states have (on average 1.1378555798687089) internal successors, (520), 461 states have internal predecessors, (520), 69 states have call successors, (69), 28 states have call predecessors, (69), 37 states have return successors, (97), 77 states have call predecessors, (97), 69 states have call successors, (97) [2021-12-28 08:44:35,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 686 transitions. [2021-12-28 08:44:35,828 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 686 transitions. Word has length 211 [2021-12-28 08:44:35,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:35,830 INFO L470 AbstractCegarLoop]: Abstraction has 567 states and 686 transitions. [2021-12-28 08:44:35,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 6.785714285714286) internal successors, (95), 14 states have internal predecessors, (95), 11 states have call successors, (17), 4 states have call predecessors, (17), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2021-12-28 08:44:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 686 transitions. [2021-12-28 08:44:35,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-12-28 08:44:35,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:35,832 INFO L514 BasicCegarLoop]: trace histogram [21, 18, 14, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:35,863 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:36,048 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-28 08:44:36,049 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:36,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:36,049 INFO L85 PathProgramCache]: Analyzing trace with hash -564713191, now seen corresponding path program 4 times [2021-12-28 08:44:36,049 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:36,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742520196] [2021-12-28 08:44:36,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:36,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:36,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:36,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:36,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:36,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:36,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:36,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:36,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:36,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:36,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:36,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:36,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-28 08:44:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:36,214 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 258 proven. 106 refuted. 0 times theorem prover too weak. 786 trivial. 0 not checked. [2021-12-28 08:44:36,214 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:36,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742520196] [2021-12-28 08:44:36,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742520196] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:36,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257757905] [2021-12-28 08:44:36,214 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:44:36,214 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:36,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:36,236 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:36,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-28 08:44:36,310 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:44:36,310 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:36,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-28 08:44:36,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 219 proven. 2 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2021-12-28 08:44:36,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:36,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 145 proven. 6 refuted. 0 times theorem prover too weak. 999 trivial. 0 not checked. [2021-12-28 08:44:36,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257757905] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:36,864 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:36,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 18 [2021-12-28 08:44:36,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690365707] [2021-12-28 08:44:36,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:36,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-28 08:44:36,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:36,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-28 08:44:36,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-12-28 08:44:36,866 INFO L87 Difference]: Start difference. First operand 567 states and 686 transitions. Second operand has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 15 states have internal predecessors, (86), 8 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2021-12-28 08:44:37,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:37,356 INFO L93 Difference]: Finished difference Result 996 states and 1249 transitions. [2021-12-28 08:44:37,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-12-28 08:44:37,356 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 15 states have internal predecessors, (86), 8 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 216 [2021-12-28 08:44:37,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:37,361 INFO L225 Difference]: With dead ends: 996 [2021-12-28 08:44:37,361 INFO L226 Difference]: Without dead ends: 626 [2021-12-28 08:44:37,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 499 GetRequests, 466 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 197 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=1011, Unknown=0, NotChecked=0, Total=1190 [2021-12-28 08:44:37,363 INFO L933 BasicCegarLoop]: 46 mSDtfsCounter, 115 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:37,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [122 Valid, 445 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 08:44:37,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2021-12-28 08:44:37,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 570. [2021-12-28 08:44:37,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 570 states, 462 states have (on average 1.1233766233766234) internal successors, (519), 465 states have internal predecessors, (519), 68 states have call successors, (68), 29 states have call predecessors, (68), 36 states have return successors, (82), 75 states have call predecessors, (82), 68 states have call successors, (82) [2021-12-28 08:44:37,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 570 states and 669 transitions. [2021-12-28 08:44:37,401 INFO L78 Accepts]: Start accepts. Automaton has 570 states and 669 transitions. Word has length 216 [2021-12-28 08:44:37,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:37,402 INFO L470 AbstractCegarLoop]: Abstraction has 570 states and 669 transitions. [2021-12-28 08:44:37,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.777777777777778) internal successors, (86), 15 states have internal predecessors, (86), 8 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2021-12-28 08:44:37,402 INFO L276 IsEmpty]: Start isEmpty. Operand 570 states and 669 transitions. [2021-12-28 08:44:37,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-12-28 08:44:37,403 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:37,404 INFO L514 BasicCegarLoop]: trace histogram [21, 18, 14, 9, 9, 8, 8, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:37,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:37,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:37,620 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:37,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:37,621 INFO L85 PathProgramCache]: Analyzing trace with hash 815564211, now seen corresponding path program 5 times [2021-12-28 08:44:37,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:37,621 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460696300] [2021-12-28 08:44:37,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:37,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:37,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:37,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:37,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:37,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:37,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:37,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:37,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:37,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:37,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:37,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:37,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2021-12-28 08:44:37,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:37,778 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 204 proven. 165 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2021-12-28 08:44:37,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:37,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460696300] [2021-12-28 08:44:37,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460696300] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:37,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110042963] [2021-12-28 08:44:37,778 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:44:37,778 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:37,778 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:37,779 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:37,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-12-28 08:44:37,855 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-12-28 08:44:37,855 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:37,857 INFO L263 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 08:44:37,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:38,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 138 proven. 10 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2021-12-28 08:44:38,088 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:38,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1150 backedges. 138 proven. 10 refuted. 0 times theorem prover too weak. 1002 trivial. 0 not checked. [2021-12-28 08:44:38,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110042963] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:38,419 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:38,419 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 6, 6] total 26 [2021-12-28 08:44:38,420 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777729756] [2021-12-28 08:44:38,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:38,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-28 08:44:38,420 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:38,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-28 08:44:38,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=582, Unknown=0, NotChecked=0, Total=650 [2021-12-28 08:44:38,421 INFO L87 Difference]: Start difference. First operand 570 states and 669 transitions. Second operand has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 20 states have internal predecessors, (109), 14 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2021-12-28 08:44:39,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:39,412 INFO L93 Difference]: Finished difference Result 1246 states and 1456 transitions. [2021-12-28 08:44:39,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-12-28 08:44:39,413 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 20 states have internal predecessors, (109), 14 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) Word has length 216 [2021-12-28 08:44:39,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:39,416 INFO L225 Difference]: With dead ends: 1246 [2021-12-28 08:44:39,416 INFO L226 Difference]: Without dead ends: 808 [2021-12-28 08:44:39,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 536 GetRequests, 468 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=628, Invalid=4202, Unknown=0, NotChecked=0, Total=4830 [2021-12-28 08:44:39,419 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 601 mSDsluCounter, 439 mSDsCounter, 0 mSdLazyCounter, 1153 mSolverCounterSat, 250 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 250 IncrementalHoareTripleChecker+Valid, 1153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:39,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [605 Valid, 474 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [250 Valid, 1153 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 08:44:39,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2021-12-28 08:44:39,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 771. [2021-12-28 08:44:39,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 771 states, 627 states have (on average 1.1259968102073366) internal successors, (706), 622 states have internal predecessors, (706), 89 states have call successors, (89), 43 states have call predecessors, (89), 51 states have return successors, (109), 105 states have call predecessors, (109), 89 states have call successors, (109) [2021-12-28 08:44:39,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 771 states to 771 states and 904 transitions. [2021-12-28 08:44:39,465 INFO L78 Accepts]: Start accepts. Automaton has 771 states and 904 transitions. Word has length 216 [2021-12-28 08:44:39,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:39,466 INFO L470 AbstractCegarLoop]: Abstraction has 771 states and 904 transitions. [2021-12-28 08:44:39,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.1923076923076925) internal successors, (109), 20 states have internal predecessors, (109), 14 states have call successors, (18), 8 states have call predecessors, (18), 1 states have return successors, (11), 8 states have call predecessors, (11), 8 states have call successors, (11) [2021-12-28 08:44:39,466 INFO L276 IsEmpty]: Start isEmpty. Operand 771 states and 904 transitions. [2021-12-28 08:44:39,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-28 08:44:39,468 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:39,468 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 14, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:39,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:39,683 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-12-28 08:44:39,683 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:39,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:39,684 INFO L85 PathProgramCache]: Analyzing trace with hash 319058886, now seen corresponding path program 1 times [2021-12-28 08:44:39,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:39,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864102346] [2021-12-28 08:44:39,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:39,684 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:39,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:39,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:39,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:39,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:39,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:39,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:39,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:39,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:39,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:39,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:39,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:39,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 08:44:39,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 08:44:39,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:39,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:39,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 321 proven. 126 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2021-12-28 08:44:39,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:39,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864102346] [2021-12-28 08:44:39,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864102346] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:39,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [212484750] [2021-12-28 08:44:39,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:39,936 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:39,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:39,937 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:39,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-12-28 08:44:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:40,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-28 08:44:40,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:40,483 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 411 proven. 36 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2021-12-28 08:44:40,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:40,854 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 321 proven. 126 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2021-12-28 08:44:40,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [212484750] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:40,859 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:40,859 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 30 [2021-12-28 08:44:40,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714976204] [2021-12-28 08:44:40,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:40,860 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-28 08:44:40,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:40,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-28 08:44:40,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=754, Unknown=0, NotChecked=0, Total=870 [2021-12-28 08:44:40,862 INFO L87 Difference]: Start difference. First operand 771 states and 904 transitions. Second operand has 30 states, 30 states have (on average 4.0) internal successors, (120), 28 states have internal predecessors, (120), 16 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-28 08:44:41,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:41,260 INFO L93 Difference]: Finished difference Result 1451 states and 1828 transitions. [2021-12-28 08:44:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-28 08:44:41,260 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.0) internal successors, (120), 28 states have internal predecessors, (120), 16 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) Word has length 233 [2021-12-28 08:44:41,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:41,264 INFO L225 Difference]: With dead ends: 1451 [2021-12-28 08:44:41,264 INFO L226 Difference]: Without dead ends: 952 [2021-12-28 08:44:41,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 497 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=1860, Unknown=0, NotChecked=0, Total=2162 [2021-12-28 08:44:41,267 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 241 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 939 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:41,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [247 Valid, 332 Invalid, 939 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 854 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:44:41,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2021-12-28 08:44:41,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 806. [2021-12-28 08:44:41,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 653 states have (on average 1.122511485451761) internal successors, (733), 649 states have internal predecessors, (733), 96 states have call successors, (96), 43 states have call predecessors, (96), 53 states have return successors, (127), 113 states have call predecessors, (127), 96 states have call successors, (127) [2021-12-28 08:44:41,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 956 transitions. [2021-12-28 08:44:41,301 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 956 transitions. Word has length 233 [2021-12-28 08:44:41,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:41,301 INFO L470 AbstractCegarLoop]: Abstraction has 806 states and 956 transitions. [2021-12-28 08:44:41,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.0) internal successors, (120), 28 states have internal predecessors, (120), 16 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-28 08:44:41,302 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 956 transitions. [2021-12-28 08:44:41,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-28 08:44:41,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:41,304 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:41,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:41,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:41,520 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:41,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:41,520 INFO L85 PathProgramCache]: Analyzing trace with hash -1501668580, now seen corresponding path program 4 times [2021-12-28 08:44:41,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:41,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686200153] [2021-12-28 08:44:41,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:41,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:41,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:42,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:42,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:42,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 08:44:42,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-28 08:44:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 08:44:42,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 08:44:42,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 08:44:42,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 08:44:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 08:44:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 08:44:42,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 08:44:42,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 08:44:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 08:44:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 08:44:42,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-28 08:44:42,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-28 08:44:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 08:44:42,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-28 08:44:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 08:44:42,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-28 08:44:42,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 08:44:42,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-28 08:44:42,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:42,200 INFO L134 CoverageAnalysis]: Checked inductivity of 2508 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-12-28 08:44:42,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:42,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686200153] [2021-12-28 08:44:42,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686200153] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:42,201 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207886435] [2021-12-28 08:44:42,201 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:44:42,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:42,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:42,202 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:42,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-12-28 08:44:42,277 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:44:42,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:42,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-28 08:44:42,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:42,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2508 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-12-28 08:44:42,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:44,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2508 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-12-28 08:44:44,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207886435] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:44,204 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:44,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2021-12-28 08:44:44,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650217984] [2021-12-28 08:44:44,204 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:44,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-12-28 08:44:44,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:44,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-12-28 08:44:44,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2021-12-28 08:44:44,208 INFO L87 Difference]: Start difference. First operand 806 states and 956 transitions. Second operand has 94 states, 93 states have (on average 2.5483870967741935) internal successors, (237), 94 states have internal predecessors, (237), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-28 08:44:45,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:45,605 INFO L93 Difference]: Finished difference Result 2255 states and 2735 transitions. [2021-12-28 08:44:45,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-12-28 08:44:45,606 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.5483870967741935) internal successors, (237), 94 states have internal predecessors, (237), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 234 [2021-12-28 08:44:45,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:45,612 INFO L225 Difference]: With dead ends: 2255 [2021-12-28 08:44:45,612 INFO L226 Difference]: Without dead ends: 2254 [2021-12-28 08:44:45,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2021-12-28 08:44:45,617 INFO L933 BasicCegarLoop]: 85 mSDtfsCounter, 945 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 945 SdHoareTripleChecker+Valid, 730 SdHoareTripleChecker+Invalid, 527 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:45,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [945 Valid, 730 Invalid, 527 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 08:44:45,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2254 states. [2021-12-28 08:44:45,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2254 to 950. [2021-12-28 08:44:45,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 950 states, 773 states have (on average 1.1345407503234153) internal successors, (877), 769 states have internal predecessors, (877), 120 states have call successors, (120), 43 states have call predecessors, (120), 53 states have return successors, (151), 137 states have call predecessors, (151), 120 states have call successors, (151) [2021-12-28 08:44:45,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1148 transitions. [2021-12-28 08:44:45,686 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1148 transitions. Word has length 234 [2021-12-28 08:44:45,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:45,686 INFO L470 AbstractCegarLoop]: Abstraction has 950 states and 1148 transitions. [2021-12-28 08:44:45,687 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.5483870967741935) internal successors, (237), 94 states have internal predecessors, (237), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-28 08:44:45,687 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1148 transitions. [2021-12-28 08:44:45,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-12-28 08:44:45,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:45,689 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 16, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:45,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-12-28 08:44:45,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:45,905 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:45,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:45,905 INFO L85 PathProgramCache]: Analyzing trace with hash 902912703, now seen corresponding path program 2 times [2021-12-28 08:44:45,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:45,905 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677079573] [2021-12-28 08:44:45,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:45,905 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:45,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:45,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:45,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:45,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:45,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:45,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:45,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:45,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:45,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:45,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 08:44:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:45,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 08:44:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:46,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:46,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:46,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:46,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:46,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 294 proven. 10 refuted. 0 times theorem prover too weak. 1315 trivial. 0 not checked. [2021-12-28 08:44:46,039 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:46,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677079573] [2021-12-28 08:44:46,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677079573] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:46,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1504921] [2021-12-28 08:44:46,039 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:46,039 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:46,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:46,040 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:46,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-12-28 08:44:46,110 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:46,110 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:46,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-28 08:44:46,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:46,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 294 proven. 10 refuted. 0 times theorem prover too weak. 1315 trivial. 0 not checked. [2021-12-28 08:44:46,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:46,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1619 backedges. 308 proven. 10 refuted. 0 times theorem prover too weak. 1301 trivial. 0 not checked. [2021-12-28 08:44:46,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1504921] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:46,792 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:46,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 8] total 11 [2021-12-28 08:44:46,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710898376] [2021-12-28 08:44:46,792 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:46,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 08:44:46,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:46,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 08:44:46,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:44:46,794 INFO L87 Difference]: Start difference. First operand 950 states and 1148 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (11), 8 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-28 08:44:46,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:46,911 INFO L93 Difference]: Finished difference Result 1409 states and 1886 transitions. [2021-12-28 08:44:46,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-28 08:44:46,911 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (11), 8 states have call predecessors, (11), 3 states have call successors, (11) Word has length 254 [2021-12-28 08:44:46,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:46,916 INFO L225 Difference]: With dead ends: 1409 [2021-12-28 08:44:46,916 INFO L226 Difference]: Without dead ends: 1408 [2021-12-28 08:44:46,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 555 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2021-12-28 08:44:46,916 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 16 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:46,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 310 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:44:46,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2021-12-28 08:44:46,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1202. [2021-12-28 08:44:46,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 977 states have (on average 1.1177072671443193) internal successors, (1092), 954 states have internal predecessors, (1092), 146 states have call successors, (146), 43 states have call predecessors, (146), 75 states have return successors, (331), 204 states have call predecessors, (331), 146 states have call successors, (331) [2021-12-28 08:44:46,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1569 transitions. [2021-12-28 08:44:46,961 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1569 transitions. Word has length 254 [2021-12-28 08:44:46,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:46,962 INFO L470 AbstractCegarLoop]: Abstraction has 1202 states and 1569 transitions. [2021-12-28 08:44:46,962 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (11), 8 states have call predecessors, (11), 3 states have call successors, (11) [2021-12-28 08:44:46,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1569 transitions. [2021-12-28 08:44:46,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-12-28 08:44:46,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:46,964 INFO L514 BasicCegarLoop]: trace histogram [28, 25, 18, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:46,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:47,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:47,180 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:47,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:47,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1262593475, now seen corresponding path program 1 times [2021-12-28 08:44:47,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:47,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217708591] [2021-12-28 08:44:47,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:47,181 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:47,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:47,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:47,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:47,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:47,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:47,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:47,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:47,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:47,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:47,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:47,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:47,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 08:44:47,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-28 08:44:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-28 08:44:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-28 08:44:47,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:47,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2078 backedges. 408 proven. 220 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2021-12-28 08:44:47,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:47,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217708591] [2021-12-28 08:44:47,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217708591] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:47,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854066138] [2021-12-28 08:44:47,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:47,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:47,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:47,404 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:47,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-12-28 08:44:47,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:47,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-28 08:44:47,496 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:47,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2078 backedges. 1138 proven. 16 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2021-12-28 08:44:47,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:48,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2078 backedges. 408 proven. 220 refuted. 0 times theorem prover too weak. 1450 trivial. 0 not checked. [2021-12-28 08:44:48,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854066138] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:48,319 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:48,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 29 [2021-12-28 08:44:48,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494553033] [2021-12-28 08:44:48,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:48,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-12-28 08:44:48,319 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:48,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-12-28 08:44:48,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=705, Unknown=0, NotChecked=0, Total=812 [2021-12-28 08:44:48,320 INFO L87 Difference]: Start difference. First operand 1202 states and 1569 transitions. Second operand has 29 states, 29 states have (on average 4.068965517241379) internal successors, (118), 25 states have internal predecessors, (118), 14 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) [2021-12-28 08:44:48,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:48,772 INFO L93 Difference]: Finished difference Result 2009 states and 2660 transitions. [2021-12-28 08:44:48,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-28 08:44:48,773 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 4.068965517241379) internal successors, (118), 25 states have internal predecessors, (118), 14 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) Word has length 285 [2021-12-28 08:44:48,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:48,777 INFO L225 Difference]: With dead ends: 2009 [2021-12-28 08:44:48,777 INFO L226 Difference]: Without dead ends: 1256 [2021-12-28 08:44:48,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 611 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 521 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=268, Invalid=1712, Unknown=0, NotChecked=0, Total=1980 [2021-12-28 08:44:48,781 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 262 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 1066 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 266 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 1066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:48,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [266 Valid, 427 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [77 Valid, 1066 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 08:44:48,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1256 states. [2021-12-28 08:44:48,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1256 to 1222. [2021-12-28 08:44:48,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1222 states, 995 states have (on average 1.1175879396984925) internal successors, (1112), 971 states have internal predecessors, (1112), 145 states have call successors, (145), 45 states have call predecessors, (145), 78 states have return successors, (319), 205 states have call predecessors, (319), 145 states have call successors, (319) [2021-12-28 08:44:48,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1222 states to 1222 states and 1576 transitions. [2021-12-28 08:44:48,827 INFO L78 Accepts]: Start accepts. Automaton has 1222 states and 1576 transitions. Word has length 285 [2021-12-28 08:44:48,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:48,827 INFO L470 AbstractCegarLoop]: Abstraction has 1222 states and 1576 transitions. [2021-12-28 08:44:48,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 4.068965517241379) internal successors, (118), 25 states have internal predecessors, (118), 14 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (17), 10 states have call predecessors, (17), 12 states have call successors, (17) [2021-12-28 08:44:48,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1222 states and 1576 transitions. [2021-12-28 08:44:48,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-28 08:44:48,829 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:48,829 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 16, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:44:48,845 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:49,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:49,043 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:49,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:49,044 INFO L85 PathProgramCache]: Analyzing trace with hash -2074477219, now seen corresponding path program 2 times [2021-12-28 08:44:49,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:49,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229157996] [2021-12-28 08:44:49,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:49,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:49,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:49,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:49,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:49,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:49,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:49,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:49,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:49,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:49,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:49,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:49,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:49,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:49,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:49,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:49,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:49,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:49,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 08:44:49,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-28 08:44:49,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:49,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 300 proven. 10 refuted. 0 times theorem prover too weak. 1315 trivial. 0 not checked. [2021-12-28 08:44:49,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:49,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229157996] [2021-12-28 08:44:49,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229157996] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:49,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410667650] [2021-12-28 08:44:49,161 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:44:49,161 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:49,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:49,162 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:49,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-12-28 08:44:49,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:44:49,254 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:49,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 08:44:49,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:49,496 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 68 proven. 18 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2021-12-28 08:44:49,500 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 68 proven. 18 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2021-12-28 08:44:49,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410667650] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:49,805 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:49,805 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2021-12-28 08:44:49,805 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131523473] [2021-12-28 08:44:49,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:49,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-28 08:44:49,806 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:49,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-28 08:44:49,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-28 08:44:49,806 INFO L87 Difference]: Start difference. First operand 1222 states and 1576 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 08:44:49,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:49,876 INFO L93 Difference]: Finished difference Result 1459 states and 1999 transitions. [2021-12-28 08:44:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-28 08:44:49,876 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 255 [2021-12-28 08:44:49,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:49,881 INFO L225 Difference]: With dead ends: 1459 [2021-12-28 08:44:49,881 INFO L226 Difference]: Without dead ends: 1458 [2021-12-28 08:44:49,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:44:49,882 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 11 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 260 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:49,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 260 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:44:49,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2021-12-28 08:44:49,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1312. [2021-12-28 08:44:49,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1312 states, 1064 states have (on average 1.1137218045112782) internal successors, (1185), 1038 states have internal predecessors, (1185), 159 states have call successors, (159), 45 states have call predecessors, (159), 85 states have return successors, (418), 228 states have call predecessors, (418), 159 states have call successors, (418) [2021-12-28 08:44:49,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1312 states to 1312 states and 1762 transitions. [2021-12-28 08:44:49,932 INFO L78 Accepts]: Start accepts. Automaton has 1312 states and 1762 transitions. Word has length 255 [2021-12-28 08:44:49,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:49,933 INFO L470 AbstractCegarLoop]: Abstraction has 1312 states and 1762 transitions. [2021-12-28 08:44:49,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-28 08:44:49,933 INFO L276 IsEmpty]: Start isEmpty. Operand 1312 states and 1762 transitions. [2021-12-28 08:44:49,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2021-12-28 08:44:49,935 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:49,935 INFO L514 BasicCegarLoop]: trace histogram [28, 25, 19, 11, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-28 08:44:49,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2021-12-28 08:44:50,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-12-28 08:44:50,151 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:50,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:50,151 INFO L85 PathProgramCache]: Analyzing trace with hash 713297720, now seen corresponding path program 3 times [2021-12-28 08:44:50,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:50,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76154817] [2021-12-28 08:44:50,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:50,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:50,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:50,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:50,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:50,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:50,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:50,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:50,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:50,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:50,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:50,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:50,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:50,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:50,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-28 08:44:50,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-28 08:44:50,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-28 08:44:50,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:50,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:50,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-28 08:44:50,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:50,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 472 proven. 126 refuted. 0 times theorem prover too weak. 1472 trivial. 0 not checked. [2021-12-28 08:44:50,308 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:50,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76154817] [2021-12-28 08:44:50,308 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76154817] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:50,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000614747] [2021-12-28 08:44:50,308 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:44:50,308 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:50,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:50,309 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:50,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-12-28 08:44:50,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-12-28 08:44:50,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:50,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-28 08:44:50,430 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:50,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 422 proven. 19 refuted. 0 times theorem prover too weak. 1629 trivial. 0 not checked. [2021-12-28 08:44:50,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:50,990 INFO L134 CoverageAnalysis]: Checked inductivity of 2070 backedges. 422 proven. 21 refuted. 0 times theorem prover too weak. 1627 trivial. 0 not checked. [2021-12-28 08:44:50,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000614747] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:50,990 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:50,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 10] total 24 [2021-12-28 08:44:50,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111340820] [2021-12-28 08:44:50,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:50,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-28 08:44:50,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:50,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-28 08:44:50,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:44:51,002 INFO L87 Difference]: Start difference. First operand 1312 states and 1762 transitions. Second operand has 24 states, 22 states have (on average 4.954545454545454) internal successors, (109), 22 states have internal predecessors, (109), 11 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-28 08:44:51,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:51,559 INFO L93 Difference]: Finished difference Result 2472 states and 3574 transitions. [2021-12-28 08:44:51,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-12-28 08:44:51,560 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 4.954545454545454) internal successors, (109), 22 states have internal predecessors, (109), 11 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) Word has length 284 [2021-12-28 08:44:51,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:51,565 INFO L225 Difference]: With dead ends: 2472 [2021-12-28 08:44:51,566 INFO L226 Difference]: Without dead ends: 1619 [2021-12-28 08:44:51,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 653 GetRequests, 609 SyntacticMatches, 2 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 359 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=370, Invalid=1522, Unknown=0, NotChecked=0, Total=1892 [2021-12-28 08:44:51,571 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 278 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:51,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [284 Valid, 444 Invalid, 867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [155 Valid, 712 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-28 08:44:51,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1619 states. [2021-12-28 08:44:51,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1619 to 1517. [2021-12-28 08:44:51,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1517 states, 1223 states have (on average 1.1030253475061325) internal successors, (1349), 1209 states have internal predecessors, (1349), 193 states have call successors, (193), 77 states have call predecessors, (193), 97 states have return successors, (320), 230 states have call predecessors, (320), 193 states have call successors, (320) [2021-12-28 08:44:51,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 1862 transitions. [2021-12-28 08:44:51,635 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 1862 transitions. Word has length 284 [2021-12-28 08:44:51,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:51,636 INFO L470 AbstractCegarLoop]: Abstraction has 1517 states and 1862 transitions. [2021-12-28 08:44:51,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 4.954545454545454) internal successors, (109), 22 states have internal predecessors, (109), 11 states have call successors, (19), 3 states have call predecessors, (19), 5 states have return successors, (18), 10 states have call predecessors, (18), 10 states have call successors, (18) [2021-12-28 08:44:51,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 1862 transitions. [2021-12-28 08:44:51,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2021-12-28 08:44:51,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:51,639 INFO L514 BasicCegarLoop]: trace histogram [40, 36, 29, 17, 14, 14, 14, 14, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-28 08:44:51,656 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:51,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-12-28 08:44:51,854 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:51,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:51,854 INFO L85 PathProgramCache]: Analyzing trace with hash 102893220, now seen corresponding path program 4 times [2021-12-28 08:44:51,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:51,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736932074] [2021-12-28 08:44:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:51,854 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:51,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:51,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:51,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:51,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:51,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:51,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:51,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:51,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:51,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-28 08:44:51,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:51,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:51,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2021-12-28 08:44:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-28 08:44:52,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-28 08:44:52,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:52,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-28 08:44:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:52,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 08:44:52,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:52,043 INFO L134 CoverageAnalysis]: Checked inductivity of 4379 backedges. 919 proven. 456 refuted. 0 times theorem prover too weak. 3004 trivial. 0 not checked. [2021-12-28 08:44:52,044 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:52,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736932074] [2021-12-28 08:44:52,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736932074] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:52,044 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334289488] [2021-12-28 08:44:52,044 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:44:52,044 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:52,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:52,059 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:52,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-12-28 08:44:52,183 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:44:52,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:52,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 689 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-28 08:44:52,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:52,595 INFO L134 CoverageAnalysis]: Checked inductivity of 4379 backedges. 2555 proven. 70 refuted. 0 times theorem prover too weak. 1754 trivial. 0 not checked. [2021-12-28 08:44:52,595 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:53,362 INFO L134 CoverageAnalysis]: Checked inductivity of 4379 backedges. 915 proven. 753 refuted. 0 times theorem prover too weak. 2711 trivial. 0 not checked. [2021-12-28 08:44:53,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334289488] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:53,362 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:53,362 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 15] total 27 [2021-12-28 08:44:53,362 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082445803] [2021-12-28 08:44:53,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:53,363 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-28 08:44:53,363 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:53,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-28 08:44:53,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=606, Unknown=0, NotChecked=0, Total=702 [2021-12-28 08:44:53,363 INFO L87 Difference]: Start difference. First operand 1517 states and 1862 transitions. Second operand has 27 states, 27 states have (on average 5.925925925925926) internal successors, (160), 27 states have internal predecessors, (160), 15 states have call successors, (25), 2 states have call predecessors, (25), 7 states have return successors, (27), 11 states have call predecessors, (27), 15 states have call successors, (27) [2021-12-28 08:44:53,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:53,768 INFO L93 Difference]: Finished difference Result 2673 states and 3352 transitions. [2021-12-28 08:44:53,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-28 08:44:53,768 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 5.925925925925926) internal successors, (160), 27 states have internal predecessors, (160), 15 states have call successors, (25), 2 states have call predecessors, (25), 7 states have return successors, (27), 11 states have call predecessors, (27), 15 states have call successors, (27) Word has length 403 [2021-12-28 08:44:53,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:53,774 INFO L225 Difference]: With dead ends: 2673 [2021-12-28 08:44:53,774 INFO L226 Difference]: Without dead ends: 1630 [2021-12-28 08:44:53,777 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 904 GetRequests, 860 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=1382, Unknown=0, NotChecked=0, Total=1722 [2021-12-28 08:44:53,777 INFO L933 BasicCegarLoop]: 57 mSDtfsCounter, 233 mSDsluCounter, 475 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:53,777 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 532 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:44:53,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1630 states. [2021-12-28 08:44:53,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1630 to 1458. [2021-12-28 08:44:53,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1177 states have (on average 1.1036533559898045) internal successors, (1299), 1161 states have internal predecessors, (1299), 187 states have call successors, (187), 73 states have call predecessors, (187), 90 states have return successors, (298), 223 states have call predecessors, (298), 187 states have call successors, (298) [2021-12-28 08:44:53,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1784 transitions. [2021-12-28 08:44:53,833 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1784 transitions. Word has length 403 [2021-12-28 08:44:53,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:53,834 INFO L470 AbstractCegarLoop]: Abstraction has 1458 states and 1784 transitions. [2021-12-28 08:44:53,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 5.925925925925926) internal successors, (160), 27 states have internal predecessors, (160), 15 states have call successors, (25), 2 states have call predecessors, (25), 7 states have return successors, (27), 11 states have call predecessors, (27), 15 states have call successors, (27) [2021-12-28 08:44:53,834 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1784 transitions. [2021-12-28 08:44:53,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2021-12-28 08:44:53,836 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:53,836 INFO L514 BasicCegarLoop]: trace histogram [39, 35, 27, 16, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-28 08:44:53,853 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2021-12-28 08:44:54,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-12-28 08:44:54,053 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:54,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:54,054 INFO L85 PathProgramCache]: Analyzing trace with hash -56866660, now seen corresponding path program 5 times [2021-12-28 08:44:54,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:54,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198232851] [2021-12-28 08:44:54,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:54,054 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:54,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:54,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:44:54,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:44:54,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:44:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:54,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:44:54,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:44:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:54,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:54,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-28 08:44:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:54,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:54,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2021-12-28 08:44:54,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-28 08:44:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-28 08:44:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:54,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:54,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 343 [2021-12-28 08:44:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:54,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:54,354 INFO L134 CoverageAnalysis]: Checked inductivity of 4146 backedges. 720 proven. 514 refuted. 0 times theorem prover too weak. 2912 trivial. 0 not checked. [2021-12-28 08:44:54,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:54,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198232851] [2021-12-28 08:44:54,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198232851] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:54,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367176112] [2021-12-28 08:44:54,354 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:44:54,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:54,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:54,356 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:54,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-12-28 08:44:54,414 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-12-28 08:44:54,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:54,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-28 08:44:54,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:54,766 INFO L134 CoverageAnalysis]: Checked inductivity of 4146 backedges. 1947 proven. 27 refuted. 0 times theorem prover too weak. 2172 trivial. 0 not checked. [2021-12-28 08:44:54,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:55,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4146 backedges. 502 proven. 200 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2021-12-28 08:44:55,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367176112] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:55,053 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:55,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 12, 12] total 33 [2021-12-28 08:44:55,054 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413654200] [2021-12-28 08:44:55,054 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:55,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-28 08:44:55,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:55,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-28 08:44:55,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=960, Unknown=0, NotChecked=0, Total=1056 [2021-12-28 08:44:55,055 INFO L87 Difference]: Start difference. First operand 1458 states and 1784 transitions. Second operand has 33 states, 33 states have (on average 4.0) internal successors, (132), 30 states have internal predecessors, (132), 12 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (19), 12 states have call predecessors, (19), 10 states have call successors, (19) [2021-12-28 08:44:56,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:56,231 INFO L93 Difference]: Finished difference Result 3075 states and 4078 transitions. [2021-12-28 08:44:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-28 08:44:56,231 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.0) internal successors, (132), 30 states have internal predecessors, (132), 12 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (19), 12 states have call predecessors, (19), 10 states have call successors, (19) Word has length 392 [2021-12-28 08:44:56,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:56,238 INFO L225 Difference]: With dead ends: 3075 [2021-12-28 08:44:56,238 INFO L226 Difference]: Without dead ends: 2078 [2021-12-28 08:44:56,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 909 GetRequests, 843 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 969 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=477, Invalid=4079, Unknown=0, NotChecked=0, Total=4556 [2021-12-28 08:44:56,242 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 331 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 1720 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 1720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:56,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 436 Invalid, 1874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 1720 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-28 08:44:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2021-12-28 08:44:56,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1720. [2021-12-28 08:44:56,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1396 states have (on average 1.1002865329512894) internal successors, (1536), 1376 states have internal predecessors, (1536), 215 states have call successors, (215), 81 states have call predecessors, (215), 105 states have return successors, (404), 262 states have call predecessors, (404), 215 states have call successors, (404) [2021-12-28 08:44:56,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2155 transitions. [2021-12-28 08:44:56,321 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2155 transitions. Word has length 392 [2021-12-28 08:44:56,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:56,321 INFO L470 AbstractCegarLoop]: Abstraction has 1720 states and 2155 transitions. [2021-12-28 08:44:56,321 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.0) internal successors, (132), 30 states have internal predecessors, (132), 12 states have call successors, (21), 5 states have call predecessors, (21), 4 states have return successors, (19), 12 states have call predecessors, (19), 10 states have call successors, (19) [2021-12-28 08:44:56,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2155 transitions. [2021-12-28 08:44:56,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-12-28 08:44:56,324 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:56,324 INFO L514 BasicCegarLoop]: trace histogram [37, 35, 25, 14, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-28 08:44:56,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:56,540 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-12-28 08:44:56,540 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:56,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:56,540 INFO L85 PathProgramCache]: Analyzing trace with hash -1859557402, now seen corresponding path program 6 times [2021-12-28 08:44:56,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:56,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478373874] [2021-12-28 08:44:56,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:56,541 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:44:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:44:56,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 08:44:56,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 08:44:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 08:44:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:56,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 08:44:56,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:56,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:56,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-28 08:44:56,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-28 08:44:56,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-28 08:44:56,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:56,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:56,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 279 [2021-12-28 08:44:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-12-28 08:44:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:44:56,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2021-12-28 08:44:56,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:44:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:44:56,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:44:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:44:56,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3851 backedges. 447 proven. 218 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked. [2021-12-28 08:44:56,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:44:56,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478373874] [2021-12-28 08:44:56,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478373874] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:44:56,773 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1182007337] [2021-12-28 08:44:56,773 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-28 08:44:56,773 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:44:56,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:44:56,774 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:44:56,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-12-28 08:44:56,892 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-12-28 08:44:56,892 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:44:56,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-28 08:44:56,899 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:44:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 3851 backedges. 1675 proven. 234 refuted. 0 times theorem prover too weak. 1942 trivial. 0 not checked. [2021-12-28 08:44:57,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:44:58,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3851 backedges. 300 proven. 332 refuted. 0 times theorem prover too weak. 3219 trivial. 0 not checked. [2021-12-28 08:44:58,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1182007337] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:44:58,215 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:44:58,215 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 40 [2021-12-28 08:44:58,215 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518019045] [2021-12-28 08:44:58,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:44:58,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-12-28 08:44:58,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:44:58,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-12-28 08:44:58,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=1402, Unknown=0, NotChecked=0, Total=1560 [2021-12-28 08:44:58,217 INFO L87 Difference]: Start difference. First operand 1720 states and 2155 transitions. Second operand has 40 states, 40 states have (on average 3.825) internal successors, (153), 38 states have internal predecessors, (153), 19 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 17 states have call predecessors, (24), 17 states have call successors, (24) [2021-12-28 08:44:59,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:44:59,570 INFO L93 Difference]: Finished difference Result 3121 states and 3920 transitions. [2021-12-28 08:44:59,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-12-28 08:44:59,571 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 3.825) internal successors, (153), 38 states have internal predecessors, (153), 19 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 17 states have call predecessors, (24), 17 states have call successors, (24) Word has length 380 [2021-12-28 08:44:59,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:44:59,577 INFO L225 Difference]: With dead ends: 3121 [2021-12-28 08:44:59,578 INFO L226 Difference]: Without dead ends: 1797 [2021-12-28 08:44:59,583 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 913 GetRequests, 806 SyntacticMatches, 1 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3122 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1726, Invalid=9830, Unknown=0, NotChecked=0, Total=11556 [2021-12-28 08:44:59,583 INFO L933 BasicCegarLoop]: 69 mSDtfsCounter, 211 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1175 SdHoareTripleChecker+Invalid, 1581 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 08:44:59,584 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 1175 Invalid, 1581 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 08:44:59,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1797 states. [2021-12-28 08:44:59,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1797 to 1776. [2021-12-28 08:44:59,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1776 states, 1449 states have (on average 1.095928226363009) internal successors, (1588), 1423 states have internal predecessors, (1588), 218 states have call successors, (218), 81 states have call predecessors, (218), 105 states have return successors, (407), 271 states have call predecessors, (407), 218 states have call successors, (407) [2021-12-28 08:44:59,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1776 states to 1776 states and 2213 transitions. [2021-12-28 08:44:59,703 INFO L78 Accepts]: Start accepts. Automaton has 1776 states and 2213 transitions. Word has length 380 [2021-12-28 08:44:59,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:44:59,704 INFO L470 AbstractCegarLoop]: Abstraction has 1776 states and 2213 transitions. [2021-12-28 08:44:59,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.825) internal successors, (153), 38 states have internal predecessors, (153), 19 states have call successors, (27), 4 states have call predecessors, (27), 2 states have return successors, (24), 17 states have call predecessors, (24), 17 states have call successors, (24) [2021-12-28 08:44:59,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states and 2213 transitions. [2021-12-28 08:44:59,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2021-12-28 08:44:59,707 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:44:59,708 INFO L514 BasicCegarLoop]: trace histogram [42, 39, 29, 17, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 4, 4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-28 08:44:59,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-12-28 08:44:59,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-12-28 08:44:59,925 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:44:59,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:44:59,925 INFO L85 PathProgramCache]: Analyzing trace with hash 2007618919, now seen corresponding path program 7 times [2021-12-28 08:44:59,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:44:59,925 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52080400] [2021-12-28 08:44:59,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:44:59,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:44:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:45:00,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:45:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 08:45:00,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 08:45:00,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 08:45:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:00,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 08:45:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:00,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 08:45:00,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:00,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 08:45:00,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 08:45:00,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 08:45:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:00,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-28 08:45:00,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 338 [2021-12-28 08:45:00,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:00,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 375 [2021-12-28 08:45:00,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:00,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:00,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:00,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,140 INFO L134 CoverageAnalysis]: Checked inductivity of 4871 backedges. 543 proven. 444 refuted. 0 times theorem prover too weak. 3884 trivial. 0 not checked. [2021-12-28 08:45:00,140 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:00,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52080400] [2021-12-28 08:45:00,140 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52080400] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:00,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807771893] [2021-12-28 08:45:00,140 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-28 08:45:00,140 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:00,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:00,156 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:00,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-12-28 08:45:00,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:00,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-28 08:45:00,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:00,692 INFO L134 CoverageAnalysis]: Checked inductivity of 4871 backedges. 1579 proven. 347 refuted. 0 times theorem prover too weak. 2945 trivial. 0 not checked. [2021-12-28 08:45:00,692 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 4871 backedges. 543 proven. 444 refuted. 0 times theorem prover too weak. 3884 trivial. 0 not checked. [2021-12-28 08:45:01,053 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807771893] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:01,053 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:01,053 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 20 [2021-12-28 08:45:01,053 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469577829] [2021-12-28 08:45:01,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:01,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-28 08:45:01,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:01,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-28 08:45:01,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-12-28 08:45:01,054 INFO L87 Difference]: Start difference. First operand 1776 states and 2213 transitions. Second operand has 20 states, 20 states have (on average 4.8) internal successors, (96), 17 states have internal predecessors, (96), 9 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2021-12-28 08:45:01,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:01,488 INFO L93 Difference]: Finished difference Result 2974 states and 3729 transitions. [2021-12-28 08:45:01,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-28 08:45:01,489 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 4.8) internal successors, (96), 17 states have internal predecessors, (96), 9 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) Word has length 424 [2021-12-28 08:45:01,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:01,495 INFO L225 Difference]: With dead ends: 2974 [2021-12-28 08:45:01,495 INFO L226 Difference]: Without dead ends: 1826 [2021-12-28 08:45:01,498 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 960 GetRequests, 920 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=292, Invalid=1268, Unknown=0, NotChecked=0, Total=1560 [2021-12-28 08:45:01,499 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 336 mSDsluCounter, 329 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:01,499 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [342 Valid, 372 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:45:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1826 states. [2021-12-28 08:45:01,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1826 to 1770. [2021-12-28 08:45:01,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1440 states have (on average 1.0930555555555554) internal successors, (1574), 1423 states have internal predecessors, (1574), 215 states have call successors, (215), 85 states have call predecessors, (215), 111 states have return successors, (395), 261 states have call predecessors, (395), 215 states have call successors, (395) [2021-12-28 08:45:01,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2184 transitions. [2021-12-28 08:45:01,580 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2184 transitions. Word has length 424 [2021-12-28 08:45:01,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:01,581 INFO L470 AbstractCegarLoop]: Abstraction has 1770 states and 2184 transitions. [2021-12-28 08:45:01,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.8) internal successors, (96), 17 states have internal predecessors, (96), 9 states have call successors, (15), 5 states have call predecessors, (15), 3 states have return successors, (12), 7 states have call predecessors, (12), 8 states have call successors, (12) [2021-12-28 08:45:01,581 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2184 transitions. [2021-12-28 08:45:01,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 445 [2021-12-28 08:45:01,584 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:01,584 INFO L514 BasicCegarLoop]: trace histogram [43, 39, 32, 18, 16, 16, 16, 16, 14, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-28 08:45:01,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:01,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-12-28 08:45:01,799 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:45:01,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:01,800 INFO L85 PathProgramCache]: Analyzing trace with hash -1587716642, now seen corresponding path program 8 times [2021-12-28 08:45:01,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:01,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042197990] [2021-12-28 08:45:01,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:01,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:01,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:01,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:01,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:45:01,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:45:01,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:01,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-28 08:45:01,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:01,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-28 08:45:02,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-28 08:45:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:02,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:02,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-28 08:45:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-28 08:45:02,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-28 08:45:02,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:02,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-28 08:45:02,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-28 08:45:02,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:02,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 358 [2021-12-28 08:45:02,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:02,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:02,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2021-12-28 08:45:02,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:02,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:02,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:02,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:02,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5239 backedges. 744 proven. 306 refuted. 0 times theorem prover too weak. 4189 trivial. 0 not checked. [2021-12-28 08:45:02,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:02,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042197990] [2021-12-28 08:45:02,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042197990] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:02,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293815483] [2021-12-28 08:45:02,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:45:02,079 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:02,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:02,080 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:02,099 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-12-28 08:45:02,215 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:45:02,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:02,219 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-28 08:45:02,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:03,002 INFO L134 CoverageAnalysis]: Checked inductivity of 5239 backedges. 2657 proven. 143 refuted. 0 times theorem prover too weak. 2439 trivial. 0 not checked. [2021-12-28 08:45:03,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5239 backedges. 744 proven. 306 refuted. 0 times theorem prover too weak. 4189 trivial. 0 not checked. [2021-12-28 08:45:03,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293815483] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:03,593 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:03,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 31 [2021-12-28 08:45:03,593 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935942249] [2021-12-28 08:45:03,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:03,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-12-28 08:45:03,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:03,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-12-28 08:45:03,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=792, Unknown=0, NotChecked=0, Total=930 [2021-12-28 08:45:03,595 INFO L87 Difference]: Start difference. First operand 1770 states and 2184 transitions. Second operand has 31 states, 31 states have (on average 4.064516129032258) internal successors, (126), 31 states have internal predecessors, (126), 12 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-28 08:45:04,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:04,115 INFO L93 Difference]: Finished difference Result 2777 states and 3465 transitions. [2021-12-28 08:45:04,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-12-28 08:45:04,115 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 4.064516129032258) internal successors, (126), 31 states have internal predecessors, (126), 12 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) Word has length 444 [2021-12-28 08:45:04,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:04,121 INFO L225 Difference]: With dead ends: 2777 [2021-12-28 08:45:04,121 INFO L226 Difference]: Without dead ends: 1651 [2021-12-28 08:45:04,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1003 GetRequests, 951 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 720 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=574, Invalid=2182, Unknown=0, NotChecked=0, Total=2756 [2021-12-28 08:45:04,124 INFO L933 BasicCegarLoop]: 49 mSDtfsCounter, 85 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 440 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 517 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:04,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 517 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 440 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:45:04,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2021-12-28 08:45:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1626. [2021-12-28 08:45:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1313 states have (on average 1.092155369383092) internal successors, (1434), 1303 states have internal predecessors, (1434), 201 states have call successors, (201), 85 states have call predecessors, (201), 108 states have return successors, (368), 237 states have call predecessors, (368), 201 states have call successors, (368) [2021-12-28 08:45:04,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2003 transitions. [2021-12-28 08:45:04,189 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2003 transitions. Word has length 444 [2021-12-28 08:45:04,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:04,189 INFO L470 AbstractCegarLoop]: Abstraction has 1626 states and 2003 transitions. [2021-12-28 08:45:04,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 4.064516129032258) internal successors, (126), 31 states have internal predecessors, (126), 12 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-28 08:45:04,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2003 transitions. [2021-12-28 08:45:04,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-12-28 08:45:04,192 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:04,193 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 46, 46, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:04,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:04,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:04,410 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:45:04,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:04,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1091853156, now seen corresponding path program 5 times [2021-12-28 08:45:04,410 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:04,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140023697] [2021-12-28 08:45:04,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:04,411 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:04,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:45:06,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:45:06,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 08:45:06,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-28 08:45:06,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 08:45:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-28 08:45:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-28 08:45:06,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-28 08:45:06,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-28 08:45:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-28 08:45:06,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-28 08:45:06,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 08:45:06,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-28 08:45:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-28 08:45:06,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-28 08:45:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-28 08:45:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 08:45:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-28 08:45:06,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-28 08:45:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-28 08:45:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-28 08:45:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-28 08:45:06,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-28 08:45:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-28 08:45:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-28 08:45:06,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-28 08:45:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-28 08:45:06,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-28 08:45:06,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-28 08:45:06,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-28 08:45:06,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-28 08:45:06,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-28 08:45:06,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-28 08:45:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-28 08:45:06,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-28 08:45:06,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-12-28 08:45:06,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-28 08:45:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-12-28 08:45:06,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2021-12-28 08:45:06,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-28 08:45:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-28 08:45:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2021-12-28 08:45:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-28 08:45:06,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-12-28 08:45:06,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2021-12-28 08:45:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-12-28 08:45:06,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:06,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10764 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2021-12-28 08:45:06,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:06,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140023697] [2021-12-28 08:45:06,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140023697] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:06,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972308978] [2021-12-28 08:45:06,347 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:45:06,347 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:06,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:06,364 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:06,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-12-28 08:45:06,562 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-28 08:45:06,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:06,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 95 conjunts are in the unsatisfiable core [2021-12-28 08:45:06,572 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 10764 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2021-12-28 08:45:07,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:11,354 INFO L134 CoverageAnalysis]: Checked inductivity of 10764 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2021-12-28 08:45:11,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972308978] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:11,354 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:11,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2021-12-28 08:45:11,354 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467536021] [2021-12-28 08:45:11,354 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:11,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2021-12-28 08:45:11,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:11,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2021-12-28 08:45:11,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2021-12-28 08:45:11,360 INFO L87 Difference]: Start difference. First operand 1626 states and 2003 transitions. Second operand has 190 states, 189 states have (on average 2.5238095238095237) internal successors, (477), 190 states have internal predecessors, (477), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2021-12-28 08:45:18,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:18,449 INFO L93 Difference]: Finished difference Result 5176 states and 6693 transitions. [2021-12-28 08:45:18,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2021-12-28 08:45:18,450 INFO L78 Accepts]: Start accepts. Automaton has has 190 states, 189 states have (on average 2.5238095238095237) internal successors, (477), 190 states have internal predecessors, (477), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 474 [2021-12-28 08:45:18,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:18,462 INFO L225 Difference]: With dead ends: 5176 [2021-12-28 08:45:18,463 INFO L226 Difference]: Without dead ends: 5175 [2021-12-28 08:45:18,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1229 GetRequests, 947 SyntacticMatches, 0 SemanticMatches, 282 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17206 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=22608, Invalid=57764, Unknown=0, NotChecked=0, Total=80372 [2021-12-28 08:45:18,468 INFO L933 BasicCegarLoop]: 133 mSDtfsCounter, 2335 mSDsluCounter, 1250 mSDsCounter, 0 mSdLazyCounter, 1133 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2335 SdHoareTripleChecker+Valid, 1383 SdHoareTripleChecker+Invalid, 1186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 1133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:18,468 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2335 Valid, 1383 Invalid, 1186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 1133 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-28 08:45:18,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5175 states. [2021-12-28 08:45:18,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5175 to 1914. [2021-12-28 08:45:18,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1914 states, 1553 states have (on average 1.1088216355441083) internal successors, (1722), 1543 states have internal predecessors, (1722), 249 states have call successors, (249), 85 states have call predecessors, (249), 108 states have return successors, (416), 285 states have call predecessors, (416), 249 states have call successors, (416) [2021-12-28 08:45:18,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1914 states to 1914 states and 2387 transitions. [2021-12-28 08:45:18,597 INFO L78 Accepts]: Start accepts. Automaton has 1914 states and 2387 transitions. Word has length 474 [2021-12-28 08:45:18,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:18,598 INFO L470 AbstractCegarLoop]: Abstraction has 1914 states and 2387 transitions. [2021-12-28 08:45:18,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 189 states have (on average 2.5238095238095237) internal successors, (477), 190 states have internal predecessors, (477), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2021-12-28 08:45:18,599 INFO L276 IsEmpty]: Start isEmpty. Operand 1914 states and 2387 transitions. [2021-12-28 08:45:18,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2021-12-28 08:45:18,603 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:18,603 INFO L514 BasicCegarLoop]: trace histogram [53, 52, 38, 21, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 15, 15, 15, 14, 14, 14, 14, 14, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2021-12-28 08:45:18,622 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:18,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:18,820 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:45:18,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:18,821 INFO L85 PathProgramCache]: Analyzing trace with hash -1965660013, now seen corresponding path program 9 times [2021-12-28 08:45:18,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:18,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611337481] [2021-12-28 08:45:18,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:18,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:18,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:18,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:45:18,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:45:18,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 08:45:18,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 08:45:18,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 08:45:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:18,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:18,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 08:45:18,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 08:45:18,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:18,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:18,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 08:45:18,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 08:45:18,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:18,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:18,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 08:45:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:18,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:18,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:19,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-28 08:45:19,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:19,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:19,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:19,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2021-12-28 08:45:19,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-28 08:45:19,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:19,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-12-28 08:45:19,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:19,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 503 [2021-12-28 08:45:19,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:19,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:19,232 INFO L134 CoverageAnalysis]: Checked inductivity of 8314 backedges. 1456 proven. 391 refuted. 0 times theorem prover too weak. 6467 trivial. 0 not checked. [2021-12-28 08:45:19,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:19,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611337481] [2021-12-28 08:45:19,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611337481] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:19,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890385814] [2021-12-28 08:45:19,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:45:19,248 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:19,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:19,249 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:19,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-12-28 08:45:19,359 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-12-28 08:45:19,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:19,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-28 08:45:19,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:20,242 INFO L134 CoverageAnalysis]: Checked inductivity of 8314 backedges. 2651 proven. 142 refuted. 0 times theorem prover too weak. 5521 trivial. 0 not checked. [2021-12-28 08:45:20,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:21,291 INFO L134 CoverageAnalysis]: Checked inductivity of 8314 backedges. 1245 proven. 296 refuted. 0 times theorem prover too weak. 6773 trivial. 0 not checked. [2021-12-28 08:45:21,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890385814] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:21,292 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:21,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 17, 17] total 44 [2021-12-28 08:45:21,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641663478] [2021-12-28 08:45:21,292 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:21,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-12-28 08:45:21,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:21,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-12-28 08:45:21,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1728, Unknown=0, NotChecked=0, Total=1892 [2021-12-28 08:45:21,294 INFO L87 Difference]: Start difference. First operand 1914 states and 2387 transitions. Second operand has 44 states, 44 states have (on average 4.5) internal successors, (198), 43 states have internal predecessors, (198), 24 states have call successors, (31), 4 states have call predecessors, (31), 9 states have return successors, (30), 16 states have call predecessors, (30), 22 states have call successors, (30) [2021-12-28 08:45:22,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:22,830 INFO L93 Difference]: Finished difference Result 3340 states and 4252 transitions. [2021-12-28 08:45:22,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-12-28 08:45:22,830 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 4.5) internal successors, (198), 43 states have internal predecessors, (198), 24 states have call successors, (31), 4 states have call predecessors, (31), 9 states have return successors, (30), 16 states have call predecessors, (30), 22 states have call successors, (30) Word has length 552 [2021-12-28 08:45:22,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:22,841 INFO L225 Difference]: With dead ends: 3340 [2021-12-28 08:45:22,841 INFO L226 Difference]: Without dead ends: 2309 [2021-12-28 08:45:22,846 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1283 GetRequests, 1184 SyntacticMatches, 2 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2394 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=951, Invalid=8751, Unknown=0, NotChecked=0, Total=9702 [2021-12-28 08:45:22,846 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 382 mSDsluCounter, 769 mSDsCounter, 0 mSdLazyCounter, 2745 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 2963 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 2745 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:22,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [384 Valid, 816 Invalid, 2963 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 2745 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-28 08:45:22,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2021-12-28 08:45:22,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 1960. [2021-12-28 08:45:22,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1960 states, 1589 states have (on average 1.1076148521082443) internal successors, (1760), 1581 states have internal predecessors, (1760), 252 states have call successors, (252), 87 states have call predecessors, (252), 115 states have return successors, (423), 291 states have call predecessors, (423), 252 states have call successors, (423) [2021-12-28 08:45:22,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1960 states to 1960 states and 2435 transitions. [2021-12-28 08:45:22,974 INFO L78 Accepts]: Start accepts. Automaton has 1960 states and 2435 transitions. Word has length 552 [2021-12-28 08:45:22,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:22,975 INFO L470 AbstractCegarLoop]: Abstraction has 1960 states and 2435 transitions. [2021-12-28 08:45:22,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 4.5) internal successors, (198), 43 states have internal predecessors, (198), 24 states have call successors, (31), 4 states have call predecessors, (31), 9 states have return successors, (30), 16 states have call predecessors, (30), 22 states have call successors, (30) [2021-12-28 08:45:22,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1960 states and 2435 transitions. [2021-12-28 08:45:22,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 581 [2021-12-28 08:45:22,979 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:22,980 INFO L514 BasicCegarLoop]: trace histogram [56, 54, 41, 23, 19, 19, 19, 19, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 15, 15, 15, 14, 14, 14, 14, 14, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2021-12-28 08:45:22,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:23,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-12-28 08:45:23,197 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-28 08:45:23,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:23,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1918629382, now seen corresponding path program 10 times [2021-12-28 08:45:23,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:23,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773504913] [2021-12-28 08:45:23,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:23,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-28 08:45:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-28 08:45:23,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 08:45:23,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-28 08:45:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-28 08:45:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-28 08:45:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-28 08:45:23,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-28 08:45:23,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-28 08:45:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:23,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-28 08:45:23,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:23,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-28 08:45:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:23,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:23,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2021-12-28 08:45:23,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-28 08:45:23,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:23,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-28 08:45:23,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 494 [2021-12-28 08:45:23,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-28 08:45:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 531 [2021-12-28 08:45:23,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-28 08:45:23,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 08:45:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-28 08:45:23,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:23,486 INFO L134 CoverageAnalysis]: Checked inductivity of 9231 backedges. 469 proven. 595 refuted. 0 times theorem prover too weak. 8167 trivial. 0 not checked. [2021-12-28 08:45:23,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:23,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773504913] [2021-12-28 08:45:23,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773504913] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:23,486 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087666519] [2021-12-28 08:45:23,486 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:45:23,487 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:23,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:23,488 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:23,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-12-28 08:45:23,618 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:45:23,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:23,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 30 conjunts are in the unsatisfiable core [2021-12-28 08:45:23,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:24,265 INFO L134 CoverageAnalysis]: Checked inductivity of 9231 backedges. 2166 proven. 510 refuted. 0 times theorem prover too weak. 6555 trivial. 0 not checked. [2021-12-28 08:45:24,265 INFO L328 TraceCheckSpWp]: Computing backward predicates...