./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 6c24879c 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-?-6c24879 [2022-07-13 01:59:18,308 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-13 01:59:18,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-13 01:59:18,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-13 01:59:18,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-13 01:59:18,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-13 01:59:18,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-13 01:59:18,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-13 01:59:18,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-13 01:59:18,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-13 01:59:18,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-13 01:59:18,353 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-13 01:59:18,353 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-13 01:59:18,354 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-13 01:59:18,355 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-13 01:59:18,356 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-13 01:59:18,356 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-13 01:59:18,357 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-13 01:59:18,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-13 01:59:18,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-13 01:59:18,360 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-13 01:59:18,367 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-13 01:59:18,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-13 01:59:18,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-13 01:59:18,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-13 01:59:18,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-13 01:59:18,377 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-13 01:59:18,377 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-13 01:59:18,378 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-13 01:59:18,378 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-13 01:59:18,379 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-13 01:59:18,379 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-13 01:59:18,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-13 01:59:18,381 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-13 01:59:18,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-13 01:59:18,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-13 01:59:18,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-13 01:59:18,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-13 01:59:18,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-13 01:59:18,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-13 01:59:18,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-13 01:59:18,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-13 01:59:18,388 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-07-13 01:59:18,403 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-13 01:59:18,404 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-13 01:59:18,404 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-13 01:59:18,404 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-13 01:59:18,405 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-13 01:59:18,405 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-13 01:59:18,406 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-13 01:59:18,406 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-13 01:59:18,406 INFO L138 SettingsManager]: * Use SBE=true [2022-07-13 01:59:18,407 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-13 01:59:18,407 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-13 01:59:18,407 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-13 01:59:18,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-13 01:59:18,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-13 01:59:18,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-13 01:59:18,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-13 01:59:18,408 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-13 01:59:18,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-13 01:59:18,409 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-13 01:59:18,409 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-13 01:59:18,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-13 01:59:18,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-13 01:59:18,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-13 01:59:18,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 01:59:18,410 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-13 01:59:18,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-13 01:59:18,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-13 01:59:18,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-13 01:59:18,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-13 01:59:18,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-13 01:59:18,411 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30e0974778487c3ac56035f1f8ab25ce73456d36b8987ec761ccfaf99f917331 [2022-07-13 01:59:18,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-13 01:59:18,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-13 01:59:18,644 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-13 01:59:18,645 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-13 01:59:18,645 INFO L275 PluginConnector]: CDTParser initialized [2022-07-13 01:59:18,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-07-13 01:59:18,703 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5cd83e42/78f5f9c8d0d849259a99971275bfb9f5/FLAG49a5127c9 [2022-07-13 01:59:19,049 INFO L306 CDTParser]: Found 1 translation units. [2022-07-13 01:59:19,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-07-13 01:59:19,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5cd83e42/78f5f9c8d0d849259a99971275bfb9f5/FLAG49a5127c9 [2022-07-13 01:59:19,066 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5cd83e42/78f5f9c8d0d849259a99971275bfb9f5 [2022-07-13 01:59:19,067 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-13 01:59:19,069 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-13 01:59:19,069 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-13 01:59:19,070 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-13 01:59:19,072 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-13 01:59:19,072 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,073 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@244ca272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19, skipping insertion in model container [2022-07-13 01:59:19,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,078 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-13 01:59:19,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-13 01:59:19,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 01:59:19,186 INFO L203 MainTranslator]: Completed pre-run [2022-07-13 01:59:19,218 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-13 01:59:19,226 INFO L208 MainTranslator]: Completed translation [2022-07-13 01:59:19,227 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19 WrapperNode [2022-07-13 01:59:19,227 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-13 01:59:19,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-13 01:59:19,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-13 01:59:19,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-13 01:59:19,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,239 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,252 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-07-13 01:59:19,252 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-13 01:59:19,253 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-13 01:59:19,253 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-13 01:59:19,253 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-13 01:59:19,258 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,260 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,260 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,265 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,268 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,268 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,269 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-13 01:59:19,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-13 01:59:19,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-13 01:59:19,269 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-13 01:59:19,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (1/1) ... [2022-07-13 01:59:19,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-13 01:59:19,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 01:59:19,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-13 01:59:19,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-13 01:59:19,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-13 01:59:19,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-13 01:59:19,393 INFO L234 CfgBuilder]: Building ICFG [2022-07-13 01:59:19,395 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-13 01:59:19,510 INFO L275 CfgBuilder]: Performing block encoding [2022-07-13 01:59:19,515 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-13 01:59:19,515 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-13 01:59:19,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:59:19 BoogieIcfgContainer [2022-07-13 01:59:19,516 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-13 01:59:19,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-13 01:59:19,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-13 01:59:19,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-13 01:59:19,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.07 01:59:19" (1/3) ... [2022-07-13 01:59:19,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25aee921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:59:19, skipping insertion in model container [2022-07-13 01:59:19,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.07 01:59:19" (2/3) ... [2022-07-13 01:59:19,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25aee921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.07 01:59:19, skipping insertion in model container [2022-07-13 01:59:19,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.07 01:59:19" (3/3) ... [2022-07-13 01:59:19,535 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-Fig1.c [2022-07-13 01:59:19,544 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-13 01:59:19,544 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-07-13 01:59:19,610 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-13 01:59:19,615 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1a28b31, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@736f5b19 [2022-07-13 01:59:19,615 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-07-13 01:59:19,617 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) [2022-07-13 01:59:19,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-07-13 01:59:19,621 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:19,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-07-13 01:59:19,635 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:19,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:19,639 INFO L85 PathProgramCache]: Analyzing trace with hash 28700682, now seen corresponding path program 1 times [2022-07-13 01:59:19,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:19,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74333996] [2022-07-13 01:59:19,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:19,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:19,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:19,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:19,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:19,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74333996] [2022-07-13 01:59:19,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [74333996] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 01:59:19,779 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 01:59:19,780 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 01:59:19,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259381523] [2022-07-13 01:59:19,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 01:59:19,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 01:59:19,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:19,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 01:59:19,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 01:59:19,811 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) [2022-07-13 01:59:19,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 01:59:19,884 INFO L93 Difference]: Finished difference Result 61 states and 80 transitions. [2022-07-13 01:59:19,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 01:59:19,886 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 [2022-07-13 01:59:19,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 01:59:19,892 INFO L225 Difference]: With dead ends: 61 [2022-07-13 01:59:19,892 INFO L226 Difference]: Without dead ends: 32 [2022-07-13 01:59:19,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 01:59:19,902 INFO L413 NwaCegarLoop]: 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, 0.1s IncrementalHoareTripleChecker+Time [2022-07-13 01:59:19,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 31 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 01:59:19,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-13 01:59:19,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-07-13 01:59:19,935 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) [2022-07-13 01:59:19,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 38 transitions. [2022-07-13 01:59:19,937 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 38 transitions. Word has length 5 [2022-07-13 01:59:19,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 01:59:19,937 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 38 transitions. [2022-07-13 01:59:19,937 INFO L496 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) [2022-07-13 01:59:19,938 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 38 transitions. [2022-07-13 01:59:19,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-07-13 01:59:19,938 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:19,938 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-07-13 01:59:19,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-13 01:59:19,939 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:19,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:19,942 INFO L85 PathProgramCache]: Analyzing trace with hash 889721220, now seen corresponding path program 1 times [2022-07-13 01:59:19,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:19,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101157046] [2022-07-13 01:59:19,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:19,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:19,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:19,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:19,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101157046] [2022-07-13 01:59:19,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101157046] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 01:59:19,982 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 01:59:19,982 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 01:59:19,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133519081] [2022-07-13 01:59:19,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 01:59:19,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 01:59:19,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:19,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 01:59:19,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 01:59:19,987 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) [2022-07-13 01:59:20,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 01:59:20,009 INFO L93 Difference]: Finished difference Result 30 states and 39 transitions. [2022-07-13 01:59:20,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 01:59:20,009 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 [2022-07-13 01:59:20,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 01:59:20,012 INFO L225 Difference]: With dead ends: 30 [2022-07-13 01:59:20,012 INFO L226 Difference]: Without dead ends: 28 [2022-07-13 01:59:20,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 01:59:20,017 INFO L413 NwaCegarLoop]: 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 [2022-07-13 01:59:20,017 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 13 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 01:59:20,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2022-07-13 01:59:20,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2022-07-13 01:59:20,024 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) [2022-07-13 01:59:20,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 35 transitions. [2022-07-13 01:59:20,025 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 35 transitions. Word has length 6 [2022-07-13 01:59:20,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 01:59:20,025 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 35 transitions. [2022-07-13 01:59:20,026 INFO L496 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) [2022-07-13 01:59:20,026 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2022-07-13 01:59:20,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-07-13 01:59:20,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:20,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 01:59:20,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-13 01:59:20,027 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:20,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:20,035 INFO L85 PathProgramCache]: Analyzing trace with hash 295990931, now seen corresponding path program 1 times [2022-07-13 01:59:20,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:20,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458337095] [2022-07-13 01:59:20,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:20,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:20,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:20,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458337095] [2022-07-13 01:59:20,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458337095] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 01:59:20,090 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 01:59:20,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-13 01:59:20,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923370635] [2022-07-13 01:59:20,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 01:59:20,094 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-13 01:59:20,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:20,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-13 01:59:20,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 01:59:20,095 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) [2022-07-13 01:59:20,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 01:59:20,129 INFO L93 Difference]: Finished difference Result 46 states and 62 transitions. [2022-07-13 01:59:20,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-13 01:59:20,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-07-13 01:59:20,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 01:59:20,132 INFO L225 Difference]: With dead ends: 46 [2022-07-13 01:59:20,132 INFO L226 Difference]: Without dead ends: 45 [2022-07-13 01:59:20,133 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-13 01:59:20,138 INFO L413 NwaCegarLoop]: 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 [2022-07-13 01:59:20,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 28 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 01:59:20,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-07-13 01:59:20,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 26. [2022-07-13 01:59:20,150 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) [2022-07-13 01:59:20,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2022-07-13 01:59:20,151 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 8 [2022-07-13 01:59:20,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 01:59:20,152 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2022-07-13 01:59:20,152 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-13 01:59:20,152 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2022-07-13 01:59:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-07-13 01:59:20,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:20,153 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 01:59:20,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-13 01:59:20,153 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:20,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:20,156 INFO L85 PathProgramCache]: Analyzing trace with hash 585784340, now seen corresponding path program 1 times [2022-07-13 01:59:20,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:20,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184817027] [2022-07-13 01:59:20,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:20,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:20,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:20,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:20,192 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184817027] [2022-07-13 01:59:20,192 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184817027] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-13 01:59:20,192 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-13 01:59:20,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-13 01:59:20,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146369733] [2022-07-13 01:59:20,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-13 01:59:20,193 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-13 01:59:20,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-13 01:59:20,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 01:59:20,194 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) [2022-07-13 01:59:20,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 01:59:20,202 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-07-13 01:59:20,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-13 01:59:20,202 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 [2022-07-13 01:59:20,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 01:59:20,203 INFO L225 Difference]: With dead ends: 33 [2022-07-13 01:59:20,203 INFO L226 Difference]: Without dead ends: 32 [2022-07-13 01:59:20,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-13 01:59:20,204 INFO L413 NwaCegarLoop]: 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 [2022-07-13 01:59:20,204 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 21 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 01:59:20,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-07-13 01:59:20,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2022-07-13 01:59:20,208 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) [2022-07-13 01:59:20,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2022-07-13 01:59:20,208 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 9 [2022-07-13 01:59:20,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 01:59:20,209 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2022-07-13 01:59:20,209 INFO L496 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) [2022-07-13 01:59:20,209 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2022-07-13 01:59:20,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-07-13 01:59:20,211 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:20,211 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-07-13 01:59:20,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-13 01:59:20,211 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:20,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:20,212 INFO L85 PathProgramCache]: Analyzing trace with hash 218441883, now seen corresponding path program 1 times [2022-07-13 01:59:20,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:20,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980957760] [2022-07-13 01:59:20,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:20,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:20,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:20,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:20,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:20,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980957760] [2022-07-13 01:59:20,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980957760] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 01:59:20,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443227161] [2022-07-13 01:59:20,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:20,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:20,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 01:59:20,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 01:59:20,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-13 01:59:20,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:20,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-13 01:59:20,302 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 01:59:20,345 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:20,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 01:59:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:20,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443227161] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 01:59:20,373 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 01:59:20,373 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2022-07-13 01:59:20,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860259158] [2022-07-13 01:59:20,374 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 01:59:20,374 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-13 01:59:20,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:20,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-13 01:59:20,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-07-13 01:59:20,375 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) [2022-07-13 01:59:20,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 01:59:20,417 INFO L93 Difference]: Finished difference Result 66 states and 88 transitions. [2022-07-13 01:59:20,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-13 01:59:20,418 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 [2022-07-13 01:59:20,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 01:59:20,418 INFO L225 Difference]: With dead ends: 66 [2022-07-13 01:59:20,418 INFO L226 Difference]: Without dead ends: 64 [2022-07-13 01:59:20,419 INFO L412 NwaCegarLoop]: 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 [2022-07-13 01:59:20,419 INFO L413 NwaCegarLoop]: 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, 0.0s IncrementalHoareTripleChecker+Time [2022-07-13 01:59:20,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 48 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-13 01:59:20,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-07-13 01:59:20,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 46. [2022-07-13 01:59:20,425 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) [2022-07-13 01:59:20,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2022-07-13 01:59:20,426 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 13 [2022-07-13 01:59:20,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 01:59:20,426 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2022-07-13 01:59:20,426 INFO L496 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) [2022-07-13 01:59:20,427 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2022-07-13 01:59:20,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-13 01:59:20,427 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:20,427 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2022-07-13 01:59:20,462 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-13 01:59:20,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:20,644 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:20,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:20,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1759159306, now seen corresponding path program 2 times [2022-07-13 01:59:20,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:20,645 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557196415] [2022-07-13 01:59:20,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:20,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:20,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:20,692 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:20,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:20,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557196415] [2022-07-13 01:59:20,693 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557196415] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 01:59:20,693 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [847102652] [2022-07-13 01:59:20,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-13 01:59:20,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:20,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 01:59:20,711 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 01:59:20,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-13 01:59:20,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-13 01:59:20,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 01:59:20,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-13 01:59:20,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 01:59:20,785 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:20,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 01:59:20,869 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:20,869 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [847102652] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 01:59:20,869 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 01:59:20,869 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2022-07-13 01:59:20,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125435769] [2022-07-13 01:59:20,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 01:59:20,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-13 01:59:20,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:20,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-13 01:59:20,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2022-07-13 01:59:20,871 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) [2022-07-13 01:59:21,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 01:59:21,006 INFO L93 Difference]: Finished difference Result 191 states and 260 transitions. [2022-07-13 01:59:21,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-13 01:59:21,006 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 [2022-07-13 01:59:21,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 01:59:21,007 INFO L225 Difference]: With dead ends: 191 [2022-07-13 01:59:21,007 INFO L226 Difference]: Without dead ends: 189 [2022-07-13 01:59:21,007 INFO L412 NwaCegarLoop]: 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 [2022-07-13 01:59:21,008 INFO L413 NwaCegarLoop]: 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 [2022-07-13 01:59:21,008 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 95 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 01:59:21,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-07-13 01:59:21,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 112. [2022-07-13 01:59:21,032 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) [2022-07-13 01:59:21,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 143 transitions. [2022-07-13 01:59:21,033 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 143 transitions. Word has length 28 [2022-07-13 01:59:21,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 01:59:21,033 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 143 transitions. [2022-07-13 01:59:21,033 INFO L496 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) [2022-07-13 01:59:21,033 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 143 transitions. [2022-07-13 01:59:21,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-07-13 01:59:21,034 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:21,035 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1] [2022-07-13 01:59:21,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-13 01:59:21,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-07-13 01:59:21,235 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:21,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:21,236 INFO L85 PathProgramCache]: Analyzing trace with hash -830862358, now seen corresponding path program 3 times [2022-07-13 01:59:21,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:21,236 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090470340] [2022-07-13 01:59:21,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:21,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:21,376 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:21,377 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:21,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090470340] [2022-07-13 01:59:21,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090470340] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 01:59:21,377 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908892221] [2022-07-13 01:59:21,377 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-13 01:59:21,377 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:21,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 01:59:21,378 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 01:59:21,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-13 01:59:21,428 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-07-13 01:59:21,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 01:59:21,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 12 conjunts are in the unsatisfiable core [2022-07-13 01:59:21,431 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 01:59:21,509 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:21,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 01:59:21,714 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:21,715 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908892221] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 01:59:21,715 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 01:59:21,715 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2022-07-13 01:59:21,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38642224] [2022-07-13 01:59:21,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 01:59:21,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-13 01:59:21,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:21,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-13 01:59:21,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-07-13 01:59:21,716 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) [2022-07-13 01:59:21,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 01:59:21,891 INFO L93 Difference]: Finished difference Result 599 states and 806 transitions. [2022-07-13 01:59:21,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-07-13 01:59:21,891 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 [2022-07-13 01:59:21,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 01:59:21,893 INFO L225 Difference]: With dead ends: 599 [2022-07-13 01:59:21,893 INFO L226 Difference]: Without dead ends: 597 [2022-07-13 01:59:21,894 INFO L412 NwaCegarLoop]: 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 [2022-07-13 01:59:21,894 INFO L413 NwaCegarLoop]: 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 [2022-07-13 01:59:21,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 189 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 141 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-13 01:59:21,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2022-07-13 01:59:21,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 244. [2022-07-13 01:59:21,908 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) [2022-07-13 01:59:21,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 311 transitions. [2022-07-13 01:59:21,909 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 311 transitions. Word has length 58 [2022-07-13 01:59:21,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 01:59:21,909 INFO L495 AbstractCegarLoop]: Abstraction has 244 states and 311 transitions. [2022-07-13 01:59:21,909 INFO L496 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) [2022-07-13 01:59:21,910 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 311 transitions. [2022-07-13 01:59:21,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2022-07-13 01:59:21,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:21,911 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1] [2022-07-13 01:59:21,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-13 01:59:22,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:22,146 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:22,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:22,146 INFO L85 PathProgramCache]: Analyzing trace with hash -675691606, now seen corresponding path program 4 times [2022-07-13 01:59:22,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:22,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852798356] [2022-07-13 01:59:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:22,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:22,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:22,452 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:22,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:22,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852798356] [2022-07-13 01:59:22,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852798356] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 01:59:22,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343508752] [2022-07-13 01:59:22,453 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-13 01:59:22,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:22,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 01:59:22,454 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 01:59:22,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-13 01:59:22,519 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-13 01:59:22,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 01:59:22,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 24 conjunts are in the unsatisfiable core [2022-07-13 01:59:22,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 01:59:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:22,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 01:59:23,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:23,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343508752] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 01:59:23,265 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 01:59:23,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2022-07-13 01:59:23,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361239540] [2022-07-13 01:59:23,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 01:59:23,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-07-13 01:59:23,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:23,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-07-13 01:59:23,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2022-07-13 01:59:23,267 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) [2022-07-13 01:59:23,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 01:59:23,724 INFO L93 Difference]: Finished difference Result 2009 states and 2654 transitions. [2022-07-13 01:59:23,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-07-13 01:59:23,724 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 [2022-07-13 01:59:23,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 01:59:23,729 INFO L225 Difference]: With dead ends: 2009 [2022-07-13 01:59:23,730 INFO L226 Difference]: Without dead ends: 2007 [2022-07-13 01:59:23,731 INFO L412 NwaCegarLoop]: 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 [2022-07-13 01:59:23,731 INFO L413 NwaCegarLoop]: 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 [2022-07-13 01:59:23,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 383 Invalid, 490 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-13 01:59:23,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2007 states. [2022-07-13 01:59:23,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2007 to 508. [2022-07-13 01:59:23,753 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) [2022-07-13 01:59:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 508 states to 508 states and 647 transitions. [2022-07-13 01:59:23,755 INFO L78 Accepts]: Start accepts. Automaton has 508 states and 647 transitions. Word has length 118 [2022-07-13 01:59:23,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 01:59:23,755 INFO L495 AbstractCegarLoop]: Abstraction has 508 states and 647 transitions. [2022-07-13 01:59:23,755 INFO L496 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) [2022-07-13 01:59:23,755 INFO L276 IsEmpty]: Start isEmpty. Operand 508 states and 647 transitions. [2022-07-13 01:59:23,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2022-07-13 01:59:23,758 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:23,758 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1] [2022-07-13 01:59:23,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-13 01:59:23,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:23,974 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:23,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:23,975 INFO L85 PathProgramCache]: Analyzing trace with hash 948228906, now seen corresponding path program 5 times [2022-07-13 01:59:23,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:23,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481016951] [2022-07-13 01:59:23,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:23,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:24,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:24,880 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:24,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:24,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481016951] [2022-07-13 01:59:24,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481016951] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 01:59:24,881 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319985572] [2022-07-13 01:59:24,881 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-13 01:59:24,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:24,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 01:59:24,882 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 01:59:24,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-13 01:59:24,979 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2022-07-13 01:59:24,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 01:59:24,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-13 01:59:24,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 01:59:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:25,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 01:59:27,500 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:27,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319985572] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 01:59:27,501 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 01:59:27,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2022-07-13 01:59:27,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41663761] [2022-07-13 01:59:27,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 01:59:27,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2022-07-13 01:59:27,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:27,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2022-07-13 01:59:27,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 01:59:27,505 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) [2022-07-13 01:59:29,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 01:59:29,841 INFO L93 Difference]: Finished difference Result 7205 states and 9374 transitions. [2022-07-13 01:59:29,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-07-13 01:59:29,842 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 [2022-07-13 01:59:29,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 01:59:29,862 INFO L225 Difference]: With dead ends: 7205 [2022-07-13 01:59:29,862 INFO L226 Difference]: Without dead ends: 7203 [2022-07-13 01:59:29,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2022-07-13 01:59:29,868 INFO L413 NwaCegarLoop]: 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, 0.5s IncrementalHoareTripleChecker+Time [2022-07-13 01:59:29,868 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3091 Valid, 766 Invalid, 1063 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [486 Valid, 577 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-13 01:59:29,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7203 states. [2022-07-13 01:59:29,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7203 to 1036. [2022-07-13 01:59:29,927 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) [2022-07-13 01:59:29,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1319 transitions. [2022-07-13 01:59:29,928 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1319 transitions. Word has length 238 [2022-07-13 01:59:29,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 01:59:29,930 INFO L495 AbstractCegarLoop]: Abstraction has 1036 states and 1319 transitions. [2022-07-13 01:59:29,930 INFO L496 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) [2022-07-13 01:59:29,930 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1319 transitions. [2022-07-13 01:59:29,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 479 [2022-07-13 01:59:29,941 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 01:59:29,941 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 94, 1, 1, 1, 1, 1] [2022-07-13 01:59:29,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-13 01:59:30,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:30,156 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 01:59:30,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 01:59:30,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1047956950, now seen corresponding path program 6 times [2022-07-13 01:59:30,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 01:59:30,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194152557] [2022-07-13 01:59:30,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 01:59:30,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 01:59:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 01:59:32,927 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:32,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 01:59:32,928 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194152557] [2022-07-13 01:59:32,933 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194152557] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 01:59:32,933 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576804082] [2022-07-13 01:59:32,933 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-07-13 01:59:32,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 01:59:32,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 01:59:32,935 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 01:59:32,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-13 01:59:33,157 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2022-07-13 01:59:33,157 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-13 01:59:33,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 961 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-13 01:59:33,174 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 01:59:33,664 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:33,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 01:59:40,318 INFO L134 CoverageAnalysis]: Checked inductivity of 22231 backedges. 0 proven. 22231 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 01:59:40,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576804082] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 01:59:40,318 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 01:59:40,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2022-07-13 01:59:40,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877379390] [2022-07-13 01:59:40,319 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 01:59:40,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-07-13 01:59:40,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 01:59:40,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-07-13 01:59:40,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 01:59:40,333 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) [2022-07-13 02:00:06,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-13 02:00:06,128 INFO L93 Difference]: Finished difference Result 27101 states and 34910 transitions. [2022-07-13 02:00:06,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2022-07-13 02:00:06,129 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 [2022-07-13 02:00:06,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-13 02:00:06,215 INFO L225 Difference]: With dead ends: 27101 [2022-07-13 02:00:06,218 INFO L226 Difference]: Without dead ends: 27099 [2022-07-13 02:00:06,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1050 GetRequests, 860 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=18336, Invalid=18336, Unknown=0, NotChecked=0, Total=36672 [2022-07-13 02:00:06,233 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 7626 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 1151 mSolverCounterSat, 1117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s 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, 1.1s IncrementalHoareTripleChecker+Time [2022-07-13 02:00:06,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7626 Valid, 1534 Invalid, 2268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1117 Valid, 1151 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-13 02:00:06,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27099 states. [2022-07-13 02:00:06,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27099 to 2092. [2022-07-13 02:00:06,500 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) [2022-07-13 02:00:06,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2092 states to 2092 states and 2663 transitions. [2022-07-13 02:00:06,505 INFO L78 Accepts]: Start accepts. Automaton has 2092 states and 2663 transitions. Word has length 478 [2022-07-13 02:00:06,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-13 02:00:06,506 INFO L495 AbstractCegarLoop]: Abstraction has 2092 states and 2663 transitions. [2022-07-13 02:00:06,507 INFO L496 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) [2022-07-13 02:00:06,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2092 states and 2663 transitions. [2022-07-13 02:00:06,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2022-07-13 02:00:06,527 INFO L187 NwaCegarLoop]: Found error trace [2022-07-13 02:00:06,527 INFO L195 NwaCegarLoop]: trace histogram [191, 191, 191, 190, 190, 1, 1, 1, 1, 1] [2022-07-13 02:00:06,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-13 02:00:06,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:06,764 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-07-13 02:00:06,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-13 02:00:06,764 INFO L85 PathProgramCache]: Analyzing trace with hash 592228394, now seen corresponding path program 7 times [2022-07-13 02:00:06,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-13 02:00:06,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625919724] [2022-07-13 02:00:06,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-13 02:00:06,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-13 02:00:06,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:18,537 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:18,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-13 02:00:18,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625919724] [2022-07-13 02:00:18,537 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625919724] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-13 02:00:18,538 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252283535] [2022-07-13 02:00:18,538 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-07-13 02:00:18,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-13 02:00:18,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-13 02:00:18,544 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-13 02:00:18,545 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-13 02:00:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-13 02:00:18,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 1921 conjuncts, 192 conjunts are in the unsatisfiable core [2022-07-13 02:00:18,847 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-13 02:00:19,835 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:19,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-13 02:00:40,930 INFO L134 CoverageAnalysis]: Checked inductivity of 90535 backedges. 0 proven. 90535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-13 02:00:40,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252283535] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-13 02:00:40,930 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-13 02:00:40,930 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2022-07-13 02:00:40,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021448212] [2022-07-13 02:00:40,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-13 02:00:40,933 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2022-07-13 02:00:40,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-13 02:00:40,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2022-07-13 02:00:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73536, Invalid=73536, Unknown=0, NotChecked=0, Total=147072 [2022-07-13 02:00:40,952 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)