./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.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-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.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 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 08:41:39,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 08:41:39,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 08:41:39,218 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 08:41:39,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 08:41:39,224 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 08:41:39,226 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 08:41:39,231 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 08:41:39,232 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 08:41:39,234 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 08:41:39,235 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 08:41:39,239 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 08:41:39,239 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 08:41:39,241 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 08:41:39,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 08:41:39,245 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 08:41:39,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 08:41:39,246 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 08:41:39,260 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 08:41:39,261 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 08:41:39,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 08:41:39,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 08:41:39,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 08:41:39,264 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 08:41:39,266 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 08:41:39,266 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 08:41:39,266 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 08:41:39,267 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 08:41:39,267 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 08:41:39,267 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 08:41:39,268 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 08:41:39,268 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 08:41:39,269 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 08:41:39,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 08:41:39,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 08:41:39,272 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 08:41:39,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 08:41:39,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 08:41:39,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 08:41:39,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 08:41:39,273 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 08:41:39,274 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-28 08:41:39,302 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 08:41:39,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 08:41:39,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 08:41:39,303 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 08:41:39,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 08:41:39,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 08:41:39,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 08:41:39,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 08:41:39,305 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 08:41:39,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 08:41:39,306 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 08:41:39,306 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 08:41:39,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 08:41:39,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 08:41:39,307 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 08:41:39,307 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 08:41:39,307 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-28 08:41:39,307 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 08:41:39,307 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 08:41:39,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 08:41:39,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 08:41:39,308 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 08:41:39,308 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 08:41:39,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:41:39,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 08:41:39,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 08:41:39,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 08:41:39,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 08:41:39,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 08:41:39,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 08:41:39,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2021-12-28 08:41:39,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 08:41:39,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 08:41:39,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 08:41:39,564 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 08:41:39,579 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 08:41:39,581 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2021-12-28 08:41:39,620 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492efe309/fdc951cae20442d1a2fdb7ad4154a43b/FLAG423bb467f [2021-12-28 08:41:40,002 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 08:41:40,003 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2021-12-28 08:41:40,008 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492efe309/fdc951cae20442d1a2fdb7ad4154a43b/FLAG423bb467f [2021-12-28 08:41:40,415 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/492efe309/fdc951cae20442d1a2fdb7ad4154a43b [2021-12-28 08:41:40,417 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 08:41:40,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 08:41:40,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 08:41:40,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 08:41:40,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 08:41:40,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,423 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43f7a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40, skipping insertion in model container [2021-12-28 08:41:40,423 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,427 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 08:41:40,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 08:41:40,515 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:41:40,517 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 08:41:40,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:41:40,546 INFO L208 MainTranslator]: Completed translation [2021-12-28 08:41:40,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40 WrapperNode [2021-12-28 08:41:40,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 08:41:40,549 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 08:41:40,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 08:41:40,550 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 08:41:40,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,579 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2021-12-28 08:41:40,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 08:41:40,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 08:41:40,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 08:41:40,580 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 08:41:40,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,586 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 08:41:40,625 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 08:41:40,626 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 08:41:40,626 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 08:41:40,627 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (1/1) ... [2021-12-28 08:41:40,637 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:41:40,645 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:41:40,682 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 08:41:40,717 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 08:41:40,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 08:41:40,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 08:41:40,778 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 08:41:40,779 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 08:41:40,877 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 08:41:40,882 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 08:41:40,895 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-28 08:41:40,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:41:40 BoogieIcfgContainer [2021-12-28 08:41:40,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 08:41:40,899 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 08:41:40,899 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 08:41:40,901 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 08:41:40,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 08:41:40" (1/3) ... [2021-12-28 08:41:40,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569fcef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:41:40, skipping insertion in model container [2021-12-28 08:41:40,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:41:40" (2/3) ... [2021-12-28 08:41:40,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@569fcef7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:41:40, skipping insertion in model container [2021-12-28 08:41:40,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:41:40" (3/3) ... [2021-12-28 08:41:40,904 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2021-12-28 08:41:40,907 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 08:41:40,917 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-28 08:41:40,983 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 08:41:40,988 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 08:41:40,988 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-28 08:41:41,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.75) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 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 08:41:41,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-12-28 08:41:41,016 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:41,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-12-28 08:41:41,016 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:41,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:41,020 INFO L85 PathProgramCache]: Analyzing trace with hash 28700682, now seen corresponding path program 1 times [2021-12-28 08:41:41,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:41,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293101288] [2021-12-28 08:41:41,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:41,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:41,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:41,170 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 08:41:41,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:41,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293101288] [2021-12-28 08:41:41,181 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293101288] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:41:41,182 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:41:41,182 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:41:41,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461138583] [2021-12-28 08:41:41,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:41:41,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:41:41,187 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:41:41,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:41:41,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:41:41,206 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.75) internal successors, (28), 22 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 08:41:41,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:41:41,241 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2021-12-28 08:41:41,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:41:41,243 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 5 [2021-12-28 08:41:41,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:41:41,248 INFO L225 Difference]: With dead ends: 61 [2021-12-28 08:41:41,248 INFO L226 Difference]: Without dead ends: 32 [2021-12-28 08:41:41,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:41:41,253 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 18 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:41:41,253 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 31 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:41:41,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-12-28 08:41:41,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2021-12-28 08:41:41,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 23 states have (on average 1.6521739130434783) internal successors, (38), 28 states have internal predecessors, (38), 0 states have call successors, (0), 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 08:41:41,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2021-12-28 08:41:41,274 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 5 [2021-12-28 08:41:41,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:41:41,275 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2021-12-28 08:41:41,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 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 08:41:41,275 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2021-12-28 08:41:41,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-12-28 08:41:41,275 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:41,276 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-12-28 08:41:41,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 08:41:41,276 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:41,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:41,277 INFO L85 PathProgramCache]: Analyzing trace with hash 889721220, now seen corresponding path program 1 times [2021-12-28 08:41:41,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:41,277 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [307442742] [2021-12-28 08:41:41,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:41,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:41,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:41,293 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 08:41:41,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:41,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [307442742] [2021-12-28 08:41:41,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [307442742] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:41:41,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:41:41,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:41:41,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383979043] [2021-12-28 08:41:41,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:41:41,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:41:41,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:41:41,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:41:41,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:41:41,297 INFO L87 Difference]: Start difference. First operand 29 states and 38 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 08:41:41,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:41:41,311 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2021-12-28 08:41:41,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:41:41,311 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 6 [2021-12-28 08:41:41,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:41:41,312 INFO L225 Difference]: With dead ends: 30 [2021-12-28 08:41:41,312 INFO L226 Difference]: Without dead ends: 28 [2021-12-28 08:41:41,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:41:41,314 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 13 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 13 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 08:41:41,314 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:41:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-12-28 08:41:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2021-12-28 08:41:41,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 23 states have (on average 1.5217391304347827) internal successors, (35), 26 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:41,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2021-12-28 08:41:41,318 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 6 [2021-12-28 08:41:41,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:41:41,318 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2021-12-28 08:41:41,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 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 08:41:41,319 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2021-12-28 08:41:41,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 08:41:41,319 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:41,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:41:41,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 08:41:41,320 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:41,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:41,320 INFO L85 PathProgramCache]: Analyzing trace with hash 295990931, now seen corresponding path program 1 times [2021-12-28 08:41:41,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:41,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436446201] [2021-12-28 08:41:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:41,321 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:41,355 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 08:41:41,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:41,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436446201] [2021-12-28 08:41:41,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436446201] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:41:41,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:41:41,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-28 08:41:41,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36707698] [2021-12-28 08:41:41,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:41:41,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 08:41:41,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:41:41,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 08:41:41,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:41:41,358 INFO L87 Difference]: Start difference. First operand 27 states and 35 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:41,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:41:41,394 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2021-12-28 08:41:41,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-28 08:41:41,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-28 08:41:41,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:41:41,397 INFO L225 Difference]: With dead ends: 46 [2021-12-28 08:41:41,397 INFO L226 Difference]: Without dead ends: 45 [2021-12-28 08:41:41,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-12-28 08:41:41,402 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 29 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:41:41,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 28 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:41:41,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-28 08:41:41,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 26. [2021-12-28 08:41:41,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 23 states have (on average 1.434782608695652) internal successors, (33), 25 states have internal predecessors, (33), 0 states have call successors, (0), 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 08:41:41,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2021-12-28 08:41:41,412 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 8 [2021-12-28 08:41:41,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:41:41,413 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2021-12-28 08:41:41,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:41,414 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2021-12-28 08:41:41,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-28 08:41:41,414 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:41,415 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:41:41,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 08:41:41,415 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:41,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:41,417 INFO L85 PathProgramCache]: Analyzing trace with hash 585784340, now seen corresponding path program 1 times [2021-12-28 08:41:41,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:41,417 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552248939] [2021-12-28 08:41:41,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:41,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:41,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:41,464 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 08:41:41,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:41,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552248939] [2021-12-28 08:41:41,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552248939] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:41:41,465 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:41:41,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:41:41,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320790916] [2021-12-28 08:41:41,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:41:41,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:41:41,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:41:41,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:41:41,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:41:41,467 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:41,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:41:41,484 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2021-12-28 08:41:41,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:41:41,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-28 08:41:41,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:41:41,485 INFO L225 Difference]: With dead ends: 33 [2021-12-28 08:41:41,485 INFO L226 Difference]: Without dead ends: 32 [2021-12-28 08:41:41,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:41:41,486 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:41:41,487 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:41:41,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-12-28 08:41:41,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2021-12-28 08:41:41,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.3478260869565217) internal successors, (31), 24 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:41,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2021-12-28 08:41:41,496 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 9 [2021-12-28 08:41:41,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:41:41,497 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2021-12-28 08:41:41,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:41,497 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2021-12-28 08:41:41,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-28 08:41:41,497 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:41,498 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:41:41,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 08:41:41,498 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:41,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:41,498 INFO L85 PathProgramCache]: Analyzing trace with hash 218441883, now seen corresponding path program 1 times [2021-12-28 08:41:41,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:41,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244048400] [2021-12-28 08:41:41,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:41,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:41,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:41,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:41,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:41,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244048400] [2021-12-28 08:41:41,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244048400] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:41:41,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1799771016] [2021-12-28 08:41:41,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:41,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:41,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:41:41,540 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 08:41:41,560 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 08:41:41,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:41,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-28 08:41:41,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:41:41,673 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:41,674 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:41:41,731 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:41,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1799771016] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:41:41,731 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:41:41,732 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2021-12-28 08:41:41,732 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34061699] [2021-12-28 08:41:41,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:41:41,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-28 08:41:41,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:41:41,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-28 08:41:41,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:41:41,746 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:41,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:41:41,818 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2021-12-28 08:41:41,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:41:41,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-28 08:41:41,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:41:41,819 INFO L225 Difference]: With dead ends: 66 [2021-12-28 08:41:41,819 INFO L226 Difference]: Without dead ends: 64 [2021-12-28 08:41:41,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:41:41,820 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 30 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:41:41,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 48 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:41:41,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-28 08:41:41,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 46. [2021-12-28 08:41:41,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 45 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:41,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2021-12-28 08:41:41,830 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 13 [2021-12-28 08:41:41,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:41:41,830 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2021-12-28 08:41:41,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:41,830 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2021-12-28 08:41:41,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-28 08:41:41,832 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:41,832 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2021-12-28 08:41:41,865 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 08:41:42,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:42,067 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:42,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:42,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1759159306, now seen corresponding path program 2 times [2021-12-28 08:41:42,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:42,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1626236392] [2021-12-28 08:41:42,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:42,068 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:42,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:42,136 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:42,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:42,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1626236392] [2021-12-28 08:41:42,137 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1626236392] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:41:42,137 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1155059607] [2021-12-28 08:41:42,137 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:41:42,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:42,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:41:42,138 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 08:41:42,139 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 08:41:42,170 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:41:42,170 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:41:42,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 08:41:42,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:41:42,229 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:42,229 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:41:42,319 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:42,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1155059607] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:41:42,320 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:41:42,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-28 08:41:42,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715771768] [2021-12-28 08:41:42,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:41:42,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 08:41:42,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:41:42,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 08:41:42,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:41:42,322 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand has 12 states, 11 states have (on average 5.0) internal successors, (55), 12 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:42,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:41:42,409 INFO L93 Difference]: Finished difference Result 191 states and 260 transitions. [2021-12-28 08:41:42,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-28 08:41:42,409 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-28 08:41:42,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:41:42,411 INFO L225 Difference]: With dead ends: 191 [2021-12-28 08:41:42,411 INFO L226 Difference]: Without dead ends: 189 [2021-12-28 08:41:42,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:41:42,412 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 126 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:41:42,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 95 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:41:42,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2021-12-28 08:41:42,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 112. [2021-12-28 08:41:42,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 110 states have (on average 1.3) internal successors, (143), 111 states have internal predecessors, (143), 0 states have call successors, (0), 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 08:41:42,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 143 transitions. [2021-12-28 08:41:42,423 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 143 transitions. Word has length 28 [2021-12-28 08:41:42,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:41:42,424 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 143 transitions. [2021-12-28 08:41:42,424 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), 0 states have call successors, (0), 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 08:41:42,424 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 143 transitions. [2021-12-28 08:41:42,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-28 08:41:42,425 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:42,425 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1] [2021-12-28 08:41:42,464 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 08:41:42,640 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,SelfDestructingSolverStorable5 [2021-12-28 08:41:42,640 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:42,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:42,641 INFO L85 PathProgramCache]: Analyzing trace with hash -830862358, now seen corresponding path program 3 times [2021-12-28 08:41:42,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:42,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333988605] [2021-12-28 08:41:42,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:42,641 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:42,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:42,808 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:42,809 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:42,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333988605] [2021-12-28 08:41:42,809 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1333988605] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:41:42,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2069599057] [2021-12-28 08:41:42,809 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:41:42,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:42,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:41:42,811 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 08:41:42,812 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 08:41:42,844 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-28 08:41:42,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:41:42,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-28 08:41:42,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:41:42,943 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:42,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:41:43,180 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:43,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2069599057] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:41:43,180 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:41:43,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-28 08:41:43,181 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140314951] [2021-12-28 08:41:43,181 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:41:43,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-28 08:41:43,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:41:43,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-28 08:41:43,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:41:43,182 INFO L87 Difference]: Start difference. First operand 112 states and 143 transitions. Second operand has 24 states, 23 states have (on average 5.0) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:43,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:41:43,358 INFO L93 Difference]: Finished difference Result 599 states and 806 transitions. [2021-12-28 08:41:43,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 08:41:43,359 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.0) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-12-28 08:41:43,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:41:43,361 INFO L225 Difference]: With dead ends: 599 [2021-12-28 08:41:43,361 INFO L226 Difference]: Without dead ends: 597 [2021-12-28 08:41:43,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:41:43,362 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 539 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 141 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:41:43,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [539 Valid, 189 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:41:43,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2021-12-28 08:41:43,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 244. [2021-12-28 08:41:43,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 242 states have (on average 1.2851239669421488) internal successors, (311), 243 states have internal predecessors, (311), 0 states have call successors, (0), 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 08:41:43,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 311 transitions. [2021-12-28 08:41:43,378 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 311 transitions. Word has length 58 [2021-12-28 08:41:43,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:41:43,379 INFO L470 AbstractCegarLoop]: Abstraction has 244 states and 311 transitions. [2021-12-28 08:41:43,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.0) internal successors, (115), 24 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:41:43,379 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 311 transitions. [2021-12-28 08:41:43,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-28 08:41:43,381 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:43,381 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1] [2021-12-28 08:41:43,400 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 08:41:43,596 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:43,597 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:43,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:43,597 INFO L85 PathProgramCache]: Analyzing trace with hash -675691606, now seen corresponding path program 4 times [2021-12-28 08:41:43,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:43,597 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176050054] [2021-12-28 08:41:43,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:43,597 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:43,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:43,924 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:43,925 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:43,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176050054] [2021-12-28 08:41:43,925 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176050054] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:41:43,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167781716] [2021-12-28 08:41:43,925 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:41:43,925 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:43,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:41:43,932 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 08:41:43,953 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 08:41:43,999 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:41:44,000 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:41:44,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-28 08:41:44,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:41:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:44,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:41:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:44,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167781716] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:41:44,902 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:41:44,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-28 08:41:44,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796711169] [2021-12-28 08:41:44,902 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:41:44,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-28 08:41:44,905 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:41:44,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-28 08:41:44,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-28 08:41:44,907 INFO L87 Difference]: Start difference. First operand 244 states and 311 transitions. Second operand has 48 states, 47 states have (on average 5.0) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 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 08:41:45,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:41:45,379 INFO L93 Difference]: Finished difference Result 2009 states and 2654 transitions. [2021-12-28 08:41:45,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-28 08:41:45,380 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.0) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 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 118 [2021-12-28 08:41:45,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:41:45,387 INFO L225 Difference]: With dead ends: 2009 [2021-12-28 08:41:45,387 INFO L226 Difference]: Without dead ends: 2007 [2021-12-28 08:41:45,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 212 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-12-28 08:41:45,389 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 1196 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 383 SdHoareTripleChecker+Invalid, 490 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:41:45,389 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1196 Valid, 383 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:41:45,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2021-12-28 08:41:45,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 508. [2021-12-28 08:41:45,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 508 states, 506 states have (on average 1.2786561264822134) internal successors, (647), 507 states have internal predecessors, (647), 0 states have call successors, (0), 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 08:41:45,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 647 transitions. [2021-12-28 08:41:45,418 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 647 transitions. Word has length 118 [2021-12-28 08:41:45,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:41:45,419 INFO L470 AbstractCegarLoop]: Abstraction has 508 states and 647 transitions. [2021-12-28 08:41:45,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.0) internal successors, (235), 48 states have internal predecessors, (235), 0 states have call successors, (0), 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 08:41:45,419 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 647 transitions. [2021-12-28 08:41:45,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-28 08:41:45,424 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:45,424 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1] [2021-12-28 08:41:45,442 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 08:41:45,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:45,643 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:45,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:45,643 INFO L85 PathProgramCache]: Analyzing trace with hash 948228906, now seen corresponding path program 5 times [2021-12-28 08:41:45,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:45,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557046009] [2021-12-28 08:41:45,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:45,644 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:45,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:46,565 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:46,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:46,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557046009] [2021-12-28 08:41:46,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557046009] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:41:46,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [901649349] [2021-12-28 08:41:46,566 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:41:46,566 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:46,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:41:46,566 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 08:41:46,567 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 08:41:46,700 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-28 08:41:46,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:41:46,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-28 08:41:46,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:41:47,099 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:47,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:41:49,376 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:49,376 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [901649349] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:41:49,376 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:41:49,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-28 08:41:49,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466335297] [2021-12-28 08:41:49,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:41:49,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-28 08:41:49,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:41:49,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-28 08:41:49,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-28 08:41:49,380 INFO L87 Difference]: Start difference. First operand 508 states and 647 transitions. Second operand has 96 states, 95 states have (on average 5.0) internal successors, (475), 96 states have internal predecessors, (475), 0 states have call successors, (0), 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 08:41:51,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:41:51,806 INFO L93 Difference]: Finished difference Result 7205 states and 9374 transitions. [2021-12-28 08:41:51,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-28 08:41:51,807 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.0) internal successors, (475), 96 states have internal predecessors, (475), 0 states have call successors, (0), 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 238 [2021-12-28 08:41:51,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:41:51,825 INFO L225 Difference]: With dead ends: 7205 [2021-12-28 08:41:51,825 INFO L226 Difference]: Without dead ends: 7203 [2021-12-28 08:41:51,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-12-28 08:41:51,831 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 3091 mSDsluCounter, 754 mSDsCounter, 0 mSdLazyCounter, 577 mSolverCounterSat, 486 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3091 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 1063 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 486 IncrementalHoareTripleChecker+Valid, 577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-28 08:41:51,831 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3091 Valid, 766 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-28 08:41:51,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7203 states. [2021-12-28 08:41:51,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7203 to 1036. [2021-12-28 08:41:51,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1036 states, 1034 states have (on average 1.2756286266924566) internal successors, (1319), 1035 states have internal predecessors, (1319), 0 states have call successors, (0), 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 08:41:51,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1319 transitions. [2021-12-28 08:41:51,894 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1319 transitions. Word has length 238 [2021-12-28 08:41:51,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:41:51,894 INFO L470 AbstractCegarLoop]: Abstraction has 1036 states and 1319 transitions. [2021-12-28 08:41:51,894 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.0) internal successors, (475), 96 states have internal predecessors, (475), 0 states have call successors, (0), 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 08:41:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1319 transitions. [2021-12-28 08:41:51,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2021-12-28 08:41:51,899 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:41:51,899 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1, 1] [2021-12-28 08:41:51,916 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 08:41:52,115 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:52,116 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:41:52,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:41:52,116 INFO L85 PathProgramCache]: Analyzing trace with hash -1047956950, now seen corresponding path program 6 times [2021-12-28 08:41:52,116 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:41:52,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918914519] [2021-12-28 08:41:52,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:41:52,116 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:41:52,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:41:55,127 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:55,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:41:55,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918914519] [2021-12-28 08:41:55,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918914519] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:41:55,128 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1470425831] [2021-12-28 08:41:55,128 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-28 08:41:55,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:41:55,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:41:55,129 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 08:41:55,138 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 08:41:55,376 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-28 08:41:55,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:41:55,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-28 08:41:55,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:41:56,130 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:41:56,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:02,025 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:02,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1470425831] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:02,025 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:02,026 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-28 08:42:02,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020588955] [2021-12-28 08:42:02,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:02,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-28 08:42:02,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:02,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-28 08:42:02,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-28 08:42:02,037 INFO L87 Difference]: Start difference. First operand 1036 states and 1319 transitions. Second operand has 192 states, 191 states have (on average 5.0) internal successors, (955), 192 states have internal predecessors, (955), 0 states have call successors, (0), 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 08:42:26,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:42:26,654 INFO L93 Difference]: Finished difference Result 27101 states and 34910 transitions. [2021-12-28 08:42:26,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-28 08:42:26,655 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 5.0) internal successors, (955), 192 states have internal predecessors, (955), 0 states have call successors, (0), 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 478 [2021-12-28 08:42:26,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:42:26,711 INFO L225 Difference]: With dead ends: 27101 [2021-12-28 08:42:26,712 INFO L226 Difference]: Without dead ends: 27099 [2021-12-28 08:42:26,724 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2021-12-28 08:42:26,725 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 7626 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7626 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 2268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1117 IncrementalHoareTripleChecker+Valid, 1151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:42:26,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7626 Valid, 1534 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1117 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2021-12-28 08:42:26,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27099 states. [2021-12-28 08:42:26,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27099 to 2092. [2021-12-28 08:42:26,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2092 states, 2090 states have (on average 1.2741626794258374) internal successors, (2663), 2091 states have internal predecessors, (2663), 0 states have call successors, (0), 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 08:42:26,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2663 transitions. [2021-12-28 08:42:26,915 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2663 transitions. Word has length 478 [2021-12-28 08:42:26,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:42:26,915 INFO L470 AbstractCegarLoop]: Abstraction has 2092 states and 2663 transitions. [2021-12-28 08:42:26,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 5.0) internal successors, (955), 192 states have internal predecessors, (955), 0 states have call successors, (0), 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 08:42:26,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2663 transitions. [2021-12-28 08:42:26,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2021-12-28 08:42:26,930 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:42:26,931 INFO L514 BasicCegarLoop]: trace histogram [191, 191, 191, 190, 190, 1, 1, 1, 1, 1] [2021-12-28 08:42:26,975 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-12-28 08:42:27,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:27,140 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-28 08:42:27,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:42:27,140 INFO L85 PathProgramCache]: Analyzing trace with hash 592228394, now seen corresponding path program 7 times [2021-12-28 08:42:27,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:42:27,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615804082] [2021-12-28 08:42:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:42:27,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:42:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:34,452 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:34,452 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:42:34,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615804082] [2021-12-28 08:42:34,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615804082] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:42:34,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808451111] [2021-12-28 08:42:34,453 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-28 08:42:34,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:42:34,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:42:34,454 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 08:42:34,494 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 08:42:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:42:34,756 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 192 conjunts are in the unsatisfiable core [2021-12-28 08:42:34,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:42:35,939 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:35,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:42:58,783 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:42:58,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808451111] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:42:58,784 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:42:58,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2021-12-28 08:42:58,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97420949] [2021-12-28 08:42:58,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:42:58,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2021-12-28 08:42:58,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:42:58,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2021-12-28 08:42:58,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2021-12-28 08:42:58,811 INFO L87 Difference]: Start difference. First operand 2092 states and 2663 transitions. Second operand has 384 states, 383 states have (on average 5.0) internal successors, (1915), 384 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)