./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Parts.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-numeric/Parts.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 22:40:12,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 22:40:12,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 22:40:12,561 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 22:40:12,562 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 22:40:12,563 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 22:40:12,564 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 22:40:12,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 22:40:12,566 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 22:40:12,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 22:40:12,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 22:40:12,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 22:40:12,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 22:40:12,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 22:40:12,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 22:40:12,570 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 22:40:12,571 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 22:40:12,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 22:40:12,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 22:40:12,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 22:40:12,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 22:40:12,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 22:40:12,576 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 22:40:12,577 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 22:40:12,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 22:40:12,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 22:40:12,579 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 22:40:12,580 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 22:40:12,580 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 22:40:12,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 22:40:12,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 22:40:12,581 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 22:40:12,582 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 22:40:12,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 22:40:12,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 22:40:12,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 22:40:12,583 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 22:40:12,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 22:40:12,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 22:40:12,584 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 22:40:12,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 22:40:12,585 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-12-14 22:40:12,599 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 22:40:12,599 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 22:40:12,599 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 22:40:12,600 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 22:40:12,600 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 22:40:12,600 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 22:40:12,601 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 22:40:12,601 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 22:40:12,601 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 22:40:12,601 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 22:40:12,601 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-14 22:40:12,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 22:40:12,602 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 22:40:12,602 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 22:40:12,602 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 22:40:12,602 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 22:40:12,602 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-14 22:40:12,602 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 22:40:12,603 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 22:40:12,603 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 22:40:12,603 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 22:40:12,603 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 22:40:12,603 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 22:40:12,603 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:40:12,603 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 22:40:12,604 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 22:40:12,604 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 22:40:12,604 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 22:40:12,604 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 22:40:12,605 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 22:40:12,605 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 22:40:12,605 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 [2021-12-14 22:40:12,779 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 22:40:12,806 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 22:40:12,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 22:40:12,809 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 22:40:12,812 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 22:40:12,814 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Parts.c [2021-12-14 22:40:12,881 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bed9e307/269c41ecc2d5478a827cdb93262ad2a9/FLAG870d7a7ca [2021-12-14 22:40:13,239 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 22:40:13,241 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Parts.c [2021-12-14 22:40:13,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bed9e307/269c41ecc2d5478a827cdb93262ad2a9/FLAG870d7a7ca [2021-12-14 22:40:13,272 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1bed9e307/269c41ecc2d5478a827cdb93262ad2a9 [2021-12-14 22:40:13,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 22:40:13,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 22:40:13,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 22:40:13,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 22:40:13,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 22:40:13,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0a65e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13, skipping insertion in model container [2021-12-14 22:40:13,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 22:40:13,293 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 22:40:13,438 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:40:13,440 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 22:40:13,449 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 22:40:13,455 INFO L208 MainTranslator]: Completed translation [2021-12-14 22:40:13,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13 WrapperNode [2021-12-14 22:40:13,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 22:40:13,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 22:40:13,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 22:40:13,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 22:40:13,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,475 INFO L137 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 40 [2021-12-14 22:40:13,476 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 22:40:13,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 22:40:13,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 22:40:13,477 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 22:40:13,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,493 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,508 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,509 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,510 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 22:40:13,511 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 22:40:13,511 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 22:40:13,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 22:40:13,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (1/1) ... [2021-12-14 22:40:13,531 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 22:40:13,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:13,549 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 22:40:13,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 22:40:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure parts [2021-12-14 22:40:13,583 INFO L138 BoogieDeclarations]: Found implementation of procedure parts [2021-12-14 22:40:13,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 22:40:13,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 22:40:13,615 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 22:40:13,616 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 22:40:13,861 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 22:40:13,866 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 22:40:13,867 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-14 22:40:13,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:40:13 BoogieIcfgContainer [2021-12-14 22:40:13,876 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 22:40:13,877 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 22:40:13,877 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 22:40:13,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 22:40:13,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:40:13" (1/3) ... [2021-12-14 22:40:13,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb0f3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:40:13, skipping insertion in model container [2021-12-14 22:40:13,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:40:13" (2/3) ... [2021-12-14 22:40:13,880 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb0f3e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:40:13, skipping insertion in model container [2021-12-14 22:40:13,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:40:13" (3/3) ... [2021-12-14 22:40:13,881 INFO L111 eAbstractionObserver]: Analyzing ICFG Parts.c [2021-12-14 22:40:13,884 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 22:40:13,884 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-12-14 22:40:13,912 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 22:40:13,924 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 22:40:13,924 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-12-14 22:40:13,939 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 39 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:13,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-14 22:40:13,942 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:13,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:13,943 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:13,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:13,947 INFO L85 PathProgramCache]: Analyzing trace with hash -602953989, now seen corresponding path program 1 times [2021-12-14 22:40:13,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:13,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1837447344] [2021-12-14 22:40:13,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:13,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:14,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:14,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1837447344] [2021-12-14 22:40:14,125 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1837447344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:14,125 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:14,125 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:40:14,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117875413] [2021-12-14 22:40:14,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:14,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 22:40:14,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:14,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 22:40:14,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 22:40:14,181 INFO L87 Difference]: Start difference. First operand has 45 states, 29 states have (on average 1.6551724137931034) internal successors, (48), 39 states have internal predecessors, (48), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:14,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:14,218 INFO L93 Difference]: Finished difference Result 86 states and 106 transitions. [2021-12-14 22:40:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 22:40:14,219 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-14 22:40:14,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:14,230 INFO L225 Difference]: With dead ends: 86 [2021-12-14 22:40:14,243 INFO L226 Difference]: Without dead ends: 42 [2021-12-14 22:40:14,247 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 22:40:14,251 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:14,257 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:14,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-14 22:40:14,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-14 22:40:14,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 27 states have (on average 1.5185185185185186) internal successors, (41), 36 states have internal predecessors, (41), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:14,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2021-12-14 22:40:14,288 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 8 [2021-12-14 22:40:14,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:14,289 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2021-12-14 22:40:14,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:14,290 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2021-12-14 22:40:14,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-14 22:40:14,291 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:14,291 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:14,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 22:40:14,292 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:14,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:14,295 INFO L85 PathProgramCache]: Analyzing trace with hash -602965521, now seen corresponding path program 1 times [2021-12-14 22:40:14,295 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:14,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934867368] [2021-12-14 22:40:14,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:14,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:14,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:14,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:14,347 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934867368] [2021-12-14 22:40:14,347 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934867368] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:14,347 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:14,347 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:40:14,347 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975783350] [2021-12-14 22:40:14,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:14,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 22:40:14,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:14,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 22:40:14,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 22:40:14,349 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:14,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:14,386 INFO L93 Difference]: Finished difference Result 81 states and 96 transitions. [2021-12-14 22:40:14,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 22:40:14,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-14 22:40:14,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:14,390 INFO L225 Difference]: With dead ends: 81 [2021-12-14 22:40:14,390 INFO L226 Difference]: Without dead ends: 43 [2021-12-14 22:40:14,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:14,395 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 21 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:14,396 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 113 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:14,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2021-12-14 22:40:14,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2021-12-14 22:40:14,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 28 states have (on average 1.5) internal successors, (42), 37 states have internal predecessors, (42), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:14,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2021-12-14 22:40:14,404 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 8 [2021-12-14 22:40:14,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:14,405 INFO L470 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2021-12-14 22:40:14,405 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:14,405 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2021-12-14 22:40:14,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-14 22:40:14,406 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:14,406 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:14,406 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 22:40:14,406 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:14,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:14,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1944725597, now seen corresponding path program 1 times [2021-12-14 22:40:14,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:14,407 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147903430] [2021-12-14 22:40:14,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:14,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:14,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:14,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147903430] [2021-12-14 22:40:14,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147903430] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:14,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:14,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 22:40:14,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191499021] [2021-12-14 22:40:14,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:14,458 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:14,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:14,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:14,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:14,460 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:14,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:14,517 INFO L93 Difference]: Finished difference Result 103 states and 123 transitions. [2021-12-14 22:40:14,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 22:40:14,517 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-14 22:40:14,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:14,519 INFO L225 Difference]: With dead ends: 103 [2021-12-14 22:40:14,520 INFO L226 Difference]: Without dead ends: 64 [2021-12-14 22:40:14,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 22:40:14,522 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 17 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:14,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 167 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:14,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2021-12-14 22:40:14,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 55. [2021-12-14 22:40:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 38 states have (on average 1.4473684210526316) internal successors, (55), 47 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-14 22:40:14,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2021-12-14 22:40:14,530 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 12 [2021-12-14 22:40:14,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:14,530 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2021-12-14 22:40:14,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.2) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-14 22:40:14,530 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2021-12-14 22:40:14,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-12-14 22:40:14,533 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:14,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:14,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 22:40:14,533 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:14,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:14,534 INFO L85 PathProgramCache]: Analyzing trace with hash 565418330, now seen corresponding path program 1 times [2021-12-14 22:40:14,534 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:14,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942232630] [2021-12-14 22:40:14,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:14,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:14,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:14,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:14,589 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942232630] [2021-12-14 22:40:14,589 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942232630] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:14,589 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:14,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 22:40:14,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805676398] [2021-12-14 22:40:14,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:14,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 22:40:14,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:14,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 22:40:14,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 22:40:14,591 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:14,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:14,620 INFO L93 Difference]: Finished difference Result 67 states and 81 transitions. [2021-12-14 22:40:14,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:14,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 14 [2021-12-14 22:40:14,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:14,621 INFO L225 Difference]: With dead ends: 67 [2021-12-14 22:40:14,621 INFO L226 Difference]: Without dead ends: 66 [2021-12-14 22:40:14,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:14,622 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 5 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:14,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 131 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:14,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-12-14 22:40:14,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 63. [2021-12-14 22:40:14,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 53 states have internal predecessors, (61), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-14 22:40:14,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2021-12-14 22:40:14,629 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 14 [2021-12-14 22:40:14,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:14,629 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2021-12-14 22:40:14,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:14,629 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2021-12-14 22:40:14,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-14 22:40:14,630 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:14,630 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:14,630 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 22:40:14,630 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:14,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:14,631 INFO L85 PathProgramCache]: Analyzing trace with hash 348099144, now seen corresponding path program 1 times [2021-12-14 22:40:14,631 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:14,631 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787809739] [2021-12-14 22:40:14,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:14,631 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:14,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:14,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:14,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787809739] [2021-12-14 22:40:14,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787809739] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:14,658 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:14,658 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 22:40:14,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843374980] [2021-12-14 22:40:14,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:14,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 22:40:14,659 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:14,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 22:40:14,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 22:40:14,660 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:14,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:14,675 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2021-12-14 22:40:14,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 22:40:14,675 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-14 22:40:14,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:14,676 INFO L225 Difference]: With dead ends: 63 [2021-12-14 22:40:14,676 INFO L226 Difference]: Without dead ends: 62 [2021-12-14 22:40:14,677 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:14,677 INFO L933 BasicCegarLoop]: 43 mSDtfsCounter, 10 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:14,678 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 118 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:14,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-14 22:40:14,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2021-12-14 22:40:14,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 44 states have (on average 1.3409090909090908) internal successors, (59), 52 states have internal predecessors, (59), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-14 22:40:14,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 73 transitions. [2021-12-14 22:40:14,684 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 73 transitions. Word has length 15 [2021-12-14 22:40:14,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:14,684 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 73 transitions. [2021-12-14 22:40:14,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:14,685 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 73 transitions. [2021-12-14 22:40:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-14 22:40:14,685 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:14,685 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:14,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 22:40:14,685 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:14,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:14,686 INFO L85 PathProgramCache]: Analyzing trace with hash -2124333102, now seen corresponding path program 1 times [2021-12-14 22:40:14,686 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:14,686 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677465913] [2021-12-14 22:40:14,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:14,686 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:14,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:14,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 22:40:14,716 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:14,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677465913] [2021-12-14 22:40:14,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677465913] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:14,717 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:14,717 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 22:40:14,717 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263927199] [2021-12-14 22:40:14,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:14,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 22:40:14,718 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:14,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 22:40:14,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 22:40:14,718 INFO L87 Difference]: Start difference. First operand 62 states and 73 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:14,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:14,737 INFO L93 Difference]: Finished difference Result 68 states and 78 transitions. [2021-12-14 22:40:14,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:14,737 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2021-12-14 22:40:14,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:14,738 INFO L225 Difference]: With dead ends: 68 [2021-12-14 22:40:14,738 INFO L226 Difference]: Without dead ends: 67 [2021-12-14 22:40:14,738 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:14,739 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 6 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:14,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 129 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:14,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-12-14 22:40:14,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 64. [2021-12-14 22:40:14,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.326086956521739) internal successors, (61), 54 states have internal predecessors, (61), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-14 22:40:14,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 75 transitions. [2021-12-14 22:40:14,745 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 75 transitions. Word has length 18 [2021-12-14 22:40:14,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:14,745 INFO L470 AbstractCegarLoop]: Abstraction has 64 states and 75 transitions. [2021-12-14 22:40:14,746 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:14,746 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 75 transitions. [2021-12-14 22:40:14,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-14 22:40:14,746 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:14,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:14,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 22:40:14,747 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:14,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:14,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1429816616, now seen corresponding path program 1 times [2021-12-14 22:40:14,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:14,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606569398] [2021-12-14 22:40:14,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:14,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:14,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,783 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-14 22:40:14,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:14,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606569398] [2021-12-14 22:40:14,784 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606569398] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:14,784 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:14,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-14 22:40:14,784 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334976501] [2021-12-14 22:40:14,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:14,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 22:40:14,785 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:14,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 22:40:14,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 22:40:14,786 INFO L87 Difference]: Start difference. First operand 64 states and 75 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:14,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:14,804 INFO L93 Difference]: Finished difference Result 64 states and 75 transitions. [2021-12-14 22:40:14,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-14 22:40:14,804 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2021-12-14 22:40:14,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:14,805 INFO L225 Difference]: With dead ends: 64 [2021-12-14 22:40:14,805 INFO L226 Difference]: Without dead ends: 63 [2021-12-14 22:40:14,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:14,807 INFO L933 BasicCegarLoop]: 42 mSDtfsCounter, 5 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:14,807 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 115 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:14,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-14 22:40:14,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-14 22:40:14,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 46 states have (on average 1.3043478260869565) internal successors, (60), 53 states have internal predecessors, (60), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-14 22:40:14,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 74 transitions. [2021-12-14 22:40:14,815 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 74 transitions. Word has length 19 [2021-12-14 22:40:14,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:14,815 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 74 transitions. [2021-12-14 22:40:14,816 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:14,816 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 74 transitions. [2021-12-14 22:40:14,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-14 22:40:14,816 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:14,817 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:14,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 22:40:14,817 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:14,818 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:14,818 INFO L85 PathProgramCache]: Analyzing trace with hash -637261571, now seen corresponding path program 1 times [2021-12-14 22:40:14,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:14,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145167661] [2021-12-14 22:40:14,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:14,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:14,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,860 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-14 22:40:14,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:14,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145167661] [2021-12-14 22:40:14,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145167661] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:14,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986499540] [2021-12-14 22:40:14,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:14,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:14,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:14,862 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:14,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 22:40:14,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:14,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-14 22:40:14,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-14 22:40:14,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:15,014 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-14 22:40:15,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986499540] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:15,014 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:15,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2021-12-14 22:40:15,015 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622579128] [2021-12-14 22:40:15,015 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:15,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-14 22:40:15,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:15,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 22:40:15,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-12-14 22:40:15,016 INFO L87 Difference]: Start difference. First operand 63 states and 74 transitions. Second operand has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:15,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:15,071 INFO L93 Difference]: Finished difference Result 123 states and 151 transitions. [2021-12-14 22:40:15,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 22:40:15,076 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 24 [2021-12-14 22:40:15,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:15,078 INFO L225 Difference]: With dead ends: 123 [2021-12-14 22:40:15,078 INFO L226 Difference]: Without dead ends: 122 [2021-12-14 22:40:15,079 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-12-14 22:40:15,081 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 36 mSDsluCounter, 216 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:15,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 263 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:15,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-12-14 22:40:15,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 99. [2021-12-14 22:40:15,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.263157894736842) internal successors, (96), 83 states have internal predecessors, (96), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-14 22:40:15,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 122 transitions. [2021-12-14 22:40:15,098 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 122 transitions. Word has length 24 [2021-12-14 22:40:15,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:15,111 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 122 transitions. [2021-12-14 22:40:15,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.0) internal successors, (27), 10 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:15,111 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 122 transitions. [2021-12-14 22:40:15,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-14 22:40:15,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:15,112 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:15,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:15,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:15,329 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:15,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:15,332 INFO L85 PathProgramCache]: Analyzing trace with hash 21903950, now seen corresponding path program 1 times [2021-12-14 22:40:15,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:15,332 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049518769] [2021-12-14 22:40:15,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:15,332 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:15,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:15,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049518769] [2021-12-14 22:40:15,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049518769] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:15,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469872140] [2021-12-14 22:40:15,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:15,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:15,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:15,417 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:15,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 22:40:15,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:15,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 22:40:15,585 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:15,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:15,635 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-14 22:40:15,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469872140] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:15,635 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:15,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 15 [2021-12-14 22:40:15,636 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478701954] [2021-12-14 22:40:15,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:15,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 22:40:15,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:15,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 22:40:15,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2021-12-14 22:40:15,637 INFO L87 Difference]: Start difference. First operand 99 states and 122 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:15,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:15,727 INFO L93 Difference]: Finished difference Result 164 states and 200 transitions. [2021-12-14 22:40:15,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 22:40:15,728 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2021-12-14 22:40:15,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:15,728 INFO L225 Difference]: With dead ends: 164 [2021-12-14 22:40:15,729 INFO L226 Difference]: Without dead ends: 101 [2021-12-14 22:40:15,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=261, Unknown=0, NotChecked=0, Total=342 [2021-12-14 22:40:15,730 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 27 mSDsluCounter, 274 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:15,730 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 315 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:15,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2021-12-14 22:40:15,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 99. [2021-12-14 22:40:15,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 76 states have (on average 1.25) internal successors, (95), 83 states have internal predecessors, (95), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-14 22:40:15,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 121 transitions. [2021-12-14 22:40:15,736 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 121 transitions. Word has length 27 [2021-12-14 22:40:15,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:15,736 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 121 transitions. [2021-12-14 22:40:15,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:15,736 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 121 transitions. [2021-12-14 22:40:15,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-14 22:40:15,737 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:15,737 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:15,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:15,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-12-14 22:40:15,954 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:15,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:15,954 INFO L85 PathProgramCache]: Analyzing trace with hash -19567733, now seen corresponding path program 2 times [2021-12-14 22:40:15,954 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:15,954 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630580596] [2021-12-14 22:40:15,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:15,954 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:15,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:15,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:15,987 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-12-14 22:40:15,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:15,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630580596] [2021-12-14 22:40:15,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630580596] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:15,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:15,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 22:40:15,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723029869] [2021-12-14 22:40:15,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:15,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:15,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:15,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:15,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:15,989 INFO L87 Difference]: Start difference. First operand 99 states and 121 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:16,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:16,017 INFO L93 Difference]: Finished difference Result 169 states and 212 transitions. [2021-12-14 22:40:16,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 22:40:16,017 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 37 [2021-12-14 22:40:16,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:16,018 INFO L225 Difference]: With dead ends: 169 [2021-12-14 22:40:16,018 INFO L226 Difference]: Without dead ends: 110 [2021-12-14 22:40:16,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 22:40:16,019 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 12 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:16,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 171 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:16,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-12-14 22:40:16,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 108. [2021-12-14 22:40:16,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 90 states have internal predecessors, (103), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2021-12-14 22:40:16,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 129 transitions. [2021-12-14 22:40:16,026 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 129 transitions. Word has length 37 [2021-12-14 22:40:16,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:16,026 INFO L470 AbstractCegarLoop]: Abstraction has 108 states and 129 transitions. [2021-12-14 22:40:16,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:16,026 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 129 transitions. [2021-12-14 22:40:16,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-12-14 22:40:16,027 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:16,027 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:16,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-14 22:40:16,028 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:16,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1293096832, now seen corresponding path program 1 times [2021-12-14 22:40:16,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:16,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621027564] [2021-12-14 22:40:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:16,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:16,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:16,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,102 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 22:40:16,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:16,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621027564] [2021-12-14 22:40:16,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621027564] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:16,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1892082227] [2021-12-14 22:40:16,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:16,103 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:16,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:16,104 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:16,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-14 22:40:16,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 22:40:16,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:16,249 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-12-14 22:40:16,249 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 22:40:16,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1892082227] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:16,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 22:40:16,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-12-14 22:40:16,249 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445584180] [2021-12-14 22:40:16,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:16,250 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 22:40:16,250 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:16,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 22:40:16,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2021-12-14 22:40:16,251 INFO L87 Difference]: Start difference. First operand 108 states and 129 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:16,373 INFO L93 Difference]: Finished difference Result 184 states and 224 transitions. [2021-12-14 22:40:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 22:40:16,374 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 43 [2021-12-14 22:40:16,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:16,375 INFO L225 Difference]: With dead ends: 184 [2021-12-14 22:40:16,375 INFO L226 Difference]: Without dead ends: 118 [2021-12-14 22:40:16,376 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2021-12-14 22:40:16,376 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 48 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:16,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [55 Valid, 167 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:16,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2021-12-14 22:40:16,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 114. [2021-12-14 22:40:16,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 88 states have (on average 1.2386363636363635) internal successors, (109), 94 states have internal predecessors, (109), 13 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2021-12-14 22:40:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 138 transitions. [2021-12-14 22:40:16,382 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 138 transitions. Word has length 43 [2021-12-14 22:40:16,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:16,383 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 138 transitions. [2021-12-14 22:40:16,383 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 states have internal predecessors, (29), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-14 22:40:16,383 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 138 transitions. [2021-12-14 22:40:16,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-14 22:40:16,384 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:16,384 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:16,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:16,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:16,600 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:16,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:16,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1218630964, now seen corresponding path program 1 times [2021-12-14 22:40:16,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:16,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706879065] [2021-12-14 22:40:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:16,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:16,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:16,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:16,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 22:40:16,723 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:16,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706879065] [2021-12-14 22:40:16,724 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706879065] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:16,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255962685] [2021-12-14 22:40:16,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:16,724 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:16,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:16,730 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:16,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-14 22:40:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:16,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 22:40:16,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:16,923 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 22:40:16,923 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:17,002 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 4 proven. 24 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-14 22:40:17,003 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255962685] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:17,003 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:17,003 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 12 [2021-12-14 22:40:17,003 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304103526] [2021-12-14 22:40:17,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:17,003 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 22:40:17,003 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:17,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 22:40:17,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2021-12-14 22:40:17,004 INFO L87 Difference]: Start difference. First operand 114 states and 138 transitions. Second operand has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:17,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:17,149 INFO L93 Difference]: Finished difference Result 184 states and 225 transitions. [2021-12-14 22:40:17,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-14 22:40:17,150 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 44 [2021-12-14 22:40:17,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:17,151 INFO L225 Difference]: With dead ends: 184 [2021-12-14 22:40:17,151 INFO L226 Difference]: Without dead ends: 114 [2021-12-14 22:40:17,151 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=308, Unknown=0, NotChecked=0, Total=420 [2021-12-14 22:40:17,152 INFO L933 BasicCegarLoop]: 50 mSDtfsCounter, 33 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:17,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [33 Valid, 302 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:17,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2021-12-14 22:40:17,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2021-12-14 22:40:17,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 88 states have (on average 1.2272727272727273) internal successors, (108), 94 states have internal predecessors, (108), 13 states have call successors, (13), 4 states have call predecessors, (13), 5 states have return successors, (16), 15 states have call predecessors, (16), 13 states have call successors, (16) [2021-12-14 22:40:17,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 137 transitions. [2021-12-14 22:40:17,186 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 137 transitions. Word has length 44 [2021-12-14 22:40:17,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:17,186 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 137 transitions. [2021-12-14 22:40:17,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.3333333333333335) internal successors, (40), 12 states have internal predecessors, (40), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:17,187 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 137 transitions. [2021-12-14 22:40:17,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-14 22:40:17,188 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:17,188 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:17,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:17,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:17,399 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:17,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:17,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1696880930, now seen corresponding path program 1 times [2021-12-14 22:40:17,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:17,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488307677] [2021-12-14 22:40:17,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:17,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:17,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:17,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:17,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,453 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-14 22:40:17,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:17,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488307677] [2021-12-14 22:40:17,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488307677] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:17,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253958549] [2021-12-14 22:40:17,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:17,454 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:17,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:17,455 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:17,456 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-14 22:40:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:17,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 22:40:17,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:17,596 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-14 22:40:17,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:17,714 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 19 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2021-12-14 22:40:17,715 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253958549] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:17,715 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:17,715 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2021-12-14 22:40:17,715 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414899817] [2021-12-14 22:40:17,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:17,715 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 22:40:17,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:17,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 22:40:17,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-12-14 22:40:17,716 INFO L87 Difference]: Start difference. First operand 114 states and 137 transitions. Second operand has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:17,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:17,942 INFO L93 Difference]: Finished difference Result 197 states and 260 transitions. [2021-12-14 22:40:17,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 22:40:17,943 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Word has length 48 [2021-12-14 22:40:17,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:17,944 INFO L225 Difference]: With dead ends: 197 [2021-12-14 22:40:17,944 INFO L226 Difference]: Without dead ends: 195 [2021-12-14 22:40:17,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2021-12-14 22:40:17,945 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 164 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:17,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 214 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:17,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2021-12-14 22:40:17,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 173. [2021-12-14 22:40:17,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 137 states have (on average 1.2335766423357664) internal successors, (169), 141 states have internal predecessors, (169), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2021-12-14 22:40:17,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 217 transitions. [2021-12-14 22:40:17,953 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 217 transitions. Word has length 48 [2021-12-14 22:40:17,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:17,953 INFO L470 AbstractCegarLoop]: Abstraction has 173 states and 217 transitions. [2021-12-14 22:40:17,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 13 states have internal predecessors, (55), 4 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:17,953 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 217 transitions. [2021-12-14 22:40:17,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-12-14 22:40:17,954 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:17,954 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:17,972 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:18,170 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-14 22:40:18,170 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:18,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:18,171 INFO L85 PathProgramCache]: Analyzing trace with hash 1063701326, now seen corresponding path program 1 times [2021-12-14 22:40:18,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:18,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338342080] [2021-12-14 22:40:18,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:18,172 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2021-12-14 22:40:18,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:18,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338342080] [2021-12-14 22:40:18,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338342080] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:18,211 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:18,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 22:40:18,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986927746] [2021-12-14 22:40:18,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:18,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-14 22:40:18,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:18,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-14 22:40:18,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:40:18,212 INFO L87 Difference]: Start difference. First operand 173 states and 217 transitions. Second operand has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:18,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:18,227 INFO L93 Difference]: Finished difference Result 181 states and 241 transitions. [2021-12-14 22:40:18,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-14 22:40:18,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 49 [2021-12-14 22:40:18,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:18,230 INFO L225 Difference]: With dead ends: 181 [2021-12-14 22:40:18,230 INFO L226 Difference]: Without dead ends: 180 [2021-12-14 22:40:18,230 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-14 22:40:18,231 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 12 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:18,231 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 70 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:18,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-12-14 22:40:18,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 172. [2021-12-14 22:40:18,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 137 states have (on average 1.218978102189781) internal successors, (167), 140 states have internal predecessors, (167), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2021-12-14 22:40:18,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 215 transitions. [2021-12-14 22:40:18,258 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 215 transitions. Word has length 49 [2021-12-14 22:40:18,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:18,258 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 215 transitions. [2021-12-14 22:40:18,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.5) internal successors, (23), 3 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-14 22:40:18,259 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 215 transitions. [2021-12-14 22:40:18,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-12-14 22:40:18,260 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:18,260 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:18,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-14 22:40:18,261 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:18,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:18,261 INFO L85 PathProgramCache]: Analyzing trace with hash -2029586074, now seen corresponding path program 2 times [2021-12-14 22:40:18,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:18,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851237282] [2021-12-14 22:40:18,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:18,261 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:18,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:18,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:18,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 22:40:18,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 22:40:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:18,351 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-14 22:40:18,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:18,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851237282] [2021-12-14 22:40:18,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851237282] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:18,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751144768] [2021-12-14 22:40:18,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:18,351 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:18,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:18,376 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:18,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-14 22:40:18,417 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:18,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:18,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-14 22:40:18,419 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-14 22:40:18,495 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:18,633 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-12-14 22:40:18,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751144768] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:18,633 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:18,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 21 [2021-12-14 22:40:18,634 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401248131] [2021-12-14 22:40:18,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:18,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-12-14 22:40:18,634 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:18,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-12-14 22:40:18,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=331, Unknown=0, NotChecked=0, Total=462 [2021-12-14 22:40:18,635 INFO L87 Difference]: Start difference. First operand 172 states and 215 transitions. Second operand has 22 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 22 states have internal predecessors, (57), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-14 22:40:18,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:18,777 INFO L93 Difference]: Finished difference Result 356 states and 452 transitions. [2021-12-14 22:40:18,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-14 22:40:18,777 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 22 states have internal predecessors, (57), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Word has length 54 [2021-12-14 22:40:18,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:18,779 INFO L225 Difference]: With dead ends: 356 [2021-12-14 22:40:18,779 INFO L226 Difference]: Without dead ends: 355 [2021-12-14 22:40:18,779 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=306, Invalid=686, Unknown=0, NotChecked=0, Total=992 [2021-12-14 22:40:18,780 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 149 mSDsluCounter, 326 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:18,780 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 377 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:18,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2021-12-14 22:40:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 280. [2021-12-14 22:40:18,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 227 states have (on average 1.2114537444933922) internal successors, (275), 230 states have internal predecessors, (275), 39 states have call successors, (39), 6 states have call predecessors, (39), 8 states have return successors, (45), 43 states have call predecessors, (45), 39 states have call successors, (45) [2021-12-14 22:40:18,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 359 transitions. [2021-12-14 22:40:18,790 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 359 transitions. Word has length 54 [2021-12-14 22:40:18,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:18,790 INFO L470 AbstractCegarLoop]: Abstraction has 280 states and 359 transitions. [2021-12-14 22:40:18,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 22 states have internal predecessors, (57), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2021-12-14 22:40:18,790 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 359 transitions. [2021-12-14 22:40:18,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-12-14 22:40:18,791 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:18,791 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:18,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:19,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-14 22:40:19,008 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:19,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:19,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1963933763, now seen corresponding path program 2 times [2021-12-14 22:40:19,008 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:19,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171513478] [2021-12-14 22:40:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:19,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:19,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:19,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:19,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:19,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:19,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:19,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 22:40:19,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:19,118 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 22:40:19,119 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:19,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171513478] [2021-12-14 22:40:19,119 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171513478] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:19,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671610154] [2021-12-14 22:40:19,119 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:19,119 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:19,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:19,120 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:19,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-14 22:40:19,154 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:19,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:19,155 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 22:40:19,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:19,244 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 22:40:19,244 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 22:40:19,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671610154] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:19,374 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:19,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 17 [2021-12-14 22:40:19,375 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048216509] [2021-12-14 22:40:19,375 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:19,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-14 22:40:19,375 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:19,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-14 22:40:19,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=249, Unknown=0, NotChecked=0, Total=306 [2021-12-14 22:40:19,376 INFO L87 Difference]: Start difference. First operand 280 states and 359 transitions. Second operand has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-14 22:40:19,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:19,792 INFO L93 Difference]: Finished difference Result 431 states and 554 transitions. [2021-12-14 22:40:19,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-12-14 22:40:19,793 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 55 [2021-12-14 22:40:19,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:19,794 INFO L225 Difference]: With dead ends: 431 [2021-12-14 22:40:19,795 INFO L226 Difference]: Without dead ends: 429 [2021-12-14 22:40:19,796 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 784 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=627, Invalid=2235, Unknown=0, NotChecked=0, Total=2862 [2021-12-14 22:40:19,796 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 125 mSDsluCounter, 381 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:19,796 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 428 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:19,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2021-12-14 22:40:19,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 175. [2021-12-14 22:40:19,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 141 states have (on average 1.2056737588652482) internal successors, (170), 143 states have internal predecessors, (170), 21 states have call successors, (21), 6 states have call predecessors, (21), 8 states have return successors, (27), 25 states have call predecessors, (27), 21 states have call successors, (27) [2021-12-14 22:40:19,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 218 transitions. [2021-12-14 22:40:19,806 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 218 transitions. Word has length 55 [2021-12-14 22:40:19,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:19,806 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 218 transitions. [2021-12-14 22:40:19,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 3.3529411764705883) internal successors, (57), 18 states have internal predecessors, (57), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2021-12-14 22:40:19,807 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 218 transitions. [2021-12-14 22:40:19,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-14 22:40:19,807 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:19,807 INFO L514 BasicCegarLoop]: trace histogram [6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:19,826 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:20,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:20,026 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:20,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:20,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1328814042, now seen corresponding path program 1 times [2021-12-14 22:40:20,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:20,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981710808] [2021-12-14 22:40:20,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:20,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:20,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:20,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2021-12-14 22:40:20,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,081 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 22:40:20,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:20,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981710808] [2021-12-14 22:40:20,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981710808] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:20,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717482706] [2021-12-14 22:40:20,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:20,081 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:20,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:20,095 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:20,118 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-14 22:40:20,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 7 conjunts are in the unsatisfiable core [2021-12-14 22:40:20,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:20,233 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2021-12-14 22:40:20,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:20,313 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-12-14 22:40:20,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717482706] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:20,314 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:20,314 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2021-12-14 22:40:20,314 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453219851] [2021-12-14 22:40:20,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:20,314 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-12-14 22:40:20,314 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:20,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-12-14 22:40:20,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-12-14 22:40:20,315 INFO L87 Difference]: Start difference. First operand 175 states and 218 transitions. Second operand has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-14 22:40:20,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:20,406 INFO L93 Difference]: Finished difference Result 330 states and 445 transitions. [2021-12-14 22:40:20,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-14 22:40:20,406 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 61 [2021-12-14 22:40:20,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:20,408 INFO L225 Difference]: With dead ends: 330 [2021-12-14 22:40:20,408 INFO L226 Difference]: Without dead ends: 250 [2021-12-14 22:40:20,408 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2021-12-14 22:40:20,409 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 71 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:20,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 202 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:20,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-12-14 22:40:20,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 223. [2021-12-14 22:40:20,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 178 states have (on average 1.2359550561797752) internal successors, (220), 182 states have internal predecessors, (220), 27 states have call successors, (27), 9 states have call predecessors, (27), 13 states have return successors, (37), 31 states have call predecessors, (37), 27 states have call successors, (37) [2021-12-14 22:40:20,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 284 transitions. [2021-12-14 22:40:20,418 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 284 transitions. Word has length 61 [2021-12-14 22:40:20,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:20,419 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 284 transitions. [2021-12-14 22:40:20,419 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.777777777777778) internal successors, (43), 8 states have internal predecessors, (43), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2021-12-14 22:40:20,419 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 284 transitions. [2021-12-14 22:40:20,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-14 22:40:20,419 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:20,420 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:20,436 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:20,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-14 22:40:20,635 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:20,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:20,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1961639078, now seen corresponding path program 1 times [2021-12-14 22:40:20,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:20,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1031871194] [2021-12-14 22:40:20,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:20,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:20,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:20,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:20,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 22:40:20,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 22:40:20,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2021-12-14 22:40:20,670 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:20,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1031871194] [2021-12-14 22:40:20,670 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1031871194] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:20,670 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:20,670 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 22:40:20,671 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985800600] [2021-12-14 22:40:20,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:20,671 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:20,671 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:20,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:20,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:20,672 INFO L87 Difference]: Start difference. First operand 223 states and 284 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:20,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:20,702 INFO L93 Difference]: Finished difference Result 308 states and 432 transitions. [2021-12-14 22:40:20,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 22:40:20,703 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 64 [2021-12-14 22:40:20,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:20,705 INFO L225 Difference]: With dead ends: 308 [2021-12-14 22:40:20,705 INFO L226 Difference]: Without dead ends: 307 [2021-12-14 22:40:20,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-14 22:40:20,705 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 11 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:20,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 152 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:20,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-12-14 22:40:20,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 271. [2021-12-14 22:40:20,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 214 states have (on average 1.2149532710280373) internal successors, (260), 218 states have internal predecessors, (260), 31 states have call successors, (31), 9 states have call predecessors, (31), 21 states have return successors, (77), 43 states have call predecessors, (77), 31 states have call successors, (77) [2021-12-14 22:40:20,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 368 transitions. [2021-12-14 22:40:20,717 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 368 transitions. Word has length 64 [2021-12-14 22:40:20,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:20,717 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 368 transitions. [2021-12-14 22:40:20,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:20,717 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 368 transitions. [2021-12-14 22:40:20,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-14 22:40:20,718 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:20,718 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:20,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-14 22:40:20,718 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:20,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:20,719 INFO L85 PathProgramCache]: Analyzing trace with hash -681269214, now seen corresponding path program 1 times [2021-12-14 22:40:20,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:20,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334357617] [2021-12-14 22:40:20,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:20,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:20,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:20,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 22:40:20,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 22:40:20,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,757 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2021-12-14 22:40:20,757 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:20,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334357617] [2021-12-14 22:40:20,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334357617] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:20,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 22:40:20,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 22:40:20,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60908757] [2021-12-14 22:40:20,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:20,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:20,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:20,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:20,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 22:40:20,759 INFO L87 Difference]: Start difference. First operand 271 states and 368 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:20,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:20,797 INFO L93 Difference]: Finished difference Result 412 states and 601 transitions. [2021-12-14 22:40:20,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:20,798 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 65 [2021-12-14 22:40:20,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:20,799 INFO L225 Difference]: With dead ends: 412 [2021-12-14 22:40:20,799 INFO L226 Difference]: Without dead ends: 241 [2021-12-14 22:40:20,800 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-14 22:40:20,800 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 32 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:20,801 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 96 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:20,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2021-12-14 22:40:20,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 241. [2021-12-14 22:40:20,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 188 states have (on average 1.202127659574468) internal successors, (226), 198 states have internal predecessors, (226), 31 states have call successors, (31), 9 states have call predecessors, (31), 17 states have return successors, (53), 33 states have call predecessors, (53), 31 states have call successors, (53) [2021-12-14 22:40:20,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 310 transitions. [2021-12-14 22:40:20,811 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 310 transitions. Word has length 65 [2021-12-14 22:40:20,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:20,812 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 310 transitions. [2021-12-14 22:40:20,812 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:20,812 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 310 transitions. [2021-12-14 22:40:20,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2021-12-14 22:40:20,813 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:20,813 INFO L514 BasicCegarLoop]: trace histogram [7, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:20,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-14 22:40:20,813 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:20,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:20,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1711522756, now seen corresponding path program 2 times [2021-12-14 22:40:20,814 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:20,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375566755] [2021-12-14 22:40:20,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:20,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:20,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:20,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 22:40:20,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-14 22:40:20,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:20,887 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 21 proven. 29 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2021-12-14 22:40:20,887 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:20,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375566755] [2021-12-14 22:40:20,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375566755] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:20,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1573515525] [2021-12-14 22:40:20,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:20,887 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:20,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:20,888 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:20,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-14 22:40:20,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:20,920 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:20,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 22:40:20,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:21,021 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2021-12-14 22:40:21,022 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 22:40:21,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1573515525] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:21,022 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 22:40:21,022 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2021-12-14 22:40:21,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336058617] [2021-12-14 22:40:21,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:21,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:21,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:21,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:21,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-14 22:40:21,023 INFO L87 Difference]: Start difference. First operand 241 states and 310 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:21,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:21,042 INFO L93 Difference]: Finished difference Result 255 states and 330 transitions. [2021-12-14 22:40:21,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:21,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 73 [2021-12-14 22:40:21,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:21,043 INFO L225 Difference]: With dead ends: 255 [2021-12-14 22:40:21,044 INFO L226 Difference]: Without dead ends: 254 [2021-12-14 22:40:21,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2021-12-14 22:40:21,044 INFO L933 BasicCegarLoop]: 38 mSDtfsCounter, 10 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:21,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 110 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:21,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-12-14 22:40:21,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 253. [2021-12-14 22:40:21,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 200 states have (on average 1.21) internal successors, (242), 206 states have internal predecessors, (242), 31 states have call successors, (31), 9 states have call predecessors, (31), 17 states have return successors, (53), 37 states have call predecessors, (53), 31 states have call successors, (53) [2021-12-14 22:40:21,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 326 transitions. [2021-12-14 22:40:21,054 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 326 transitions. Word has length 73 [2021-12-14 22:40:21,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:21,054 INFO L470 AbstractCegarLoop]: Abstraction has 253 states and 326 transitions. [2021-12-14 22:40:21,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-12-14 22:40:21,054 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 326 transitions. [2021-12-14 22:40:21,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2021-12-14 22:40:21,055 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:21,055 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:21,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:21,290 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:21,290 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:21,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:21,291 INFO L85 PathProgramCache]: Analyzing trace with hash 1502487496, now seen corresponding path program 1 times [2021-12-14 22:40:21,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:21,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872155357] [2021-12-14 22:40:21,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:21,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:21,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 22:40:21,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2021-12-14 22:40:21,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,339 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 10 proven. 34 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2021-12-14 22:40:21,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:21,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872155357] [2021-12-14 22:40:21,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872155357] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:21,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339869781] [2021-12-14 22:40:21,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:21,340 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:21,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:21,340 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:21,367 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-14 22:40:21,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-14 22:40:21,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:21,469 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2021-12-14 22:40:21,469 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 22:40:21,469 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339869781] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:21,470 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 22:40:21,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 13 [2021-12-14 22:40:21,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119678765] [2021-12-14 22:40:21,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:21,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 22:40:21,470 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:21,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 22:40:21,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2021-12-14 22:40:21,470 INFO L87 Difference]: Start difference. First operand 253 states and 326 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:21,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:21,557 INFO L93 Difference]: Finished difference Result 452 states and 625 transitions. [2021-12-14 22:40:21,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-14 22:40:21,558 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 67 [2021-12-14 22:40:21,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:21,559 INFO L225 Difference]: With dead ends: 452 [2021-12-14 22:40:21,559 INFO L226 Difference]: Without dead ends: 328 [2021-12-14 22:40:21,560 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-12-14 22:40:21,560 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 39 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:21,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [45 Valid, 144 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:21,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2021-12-14 22:40:21,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 325. [2021-12-14 22:40:21,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 260 states have (on average 1.2384615384615385) internal successors, (322), 258 states have internal predecessors, (322), 39 states have call successors, (39), 9 states have call predecessors, (39), 21 states have return successors, (87), 57 states have call predecessors, (87), 39 states have call successors, (87) [2021-12-14 22:40:21,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 448 transitions. [2021-12-14 22:40:21,571 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 448 transitions. Word has length 67 [2021-12-14 22:40:21,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:21,572 INFO L470 AbstractCegarLoop]: Abstraction has 325 states and 448 transitions. [2021-12-14 22:40:21,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-14 22:40:21,572 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 448 transitions. [2021-12-14 22:40:21,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-12-14 22:40:21,572 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:21,572 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:21,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-14 22:40:21,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-12-14 22:40:21,788 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:21,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:21,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1778803619, now seen corresponding path program 1 times [2021-12-14 22:40:21,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:21,789 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248298759] [2021-12-14 22:40:21,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:21,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:21,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:21,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:21,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 22:40:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 22:40:21,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:21,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:21,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,874 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-12-14 22:40:21,874 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:21,874 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248298759] [2021-12-14 22:40:21,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248298759] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:21,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912286407] [2021-12-14 22:40:21,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:21,875 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:21,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:21,875 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:21,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-14 22:40:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:21,910 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 22:40:21,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:22,044 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-12-14 22:40:22,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:22,195 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 44 proven. 23 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2021-12-14 22:40:22,195 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912286407] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:22,195 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:22,195 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 12 [2021-12-14 22:40:22,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703307263] [2021-12-14 22:40:22,195 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:22,196 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-14 22:40:22,196 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:22,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-14 22:40:22,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-14 22:40:22,196 INFO L87 Difference]: Start difference. First operand 325 states and 448 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-14 22:40:22,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:22,388 INFO L93 Difference]: Finished difference Result 500 states and 706 transitions. [2021-12-14 22:40:22,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 22:40:22,389 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) Word has length 85 [2021-12-14 22:40:22,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:22,390 INFO L225 Difference]: With dead ends: 500 [2021-12-14 22:40:22,390 INFO L226 Difference]: Without dead ends: 267 [2021-12-14 22:40:22,392 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 180 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2021-12-14 22:40:22,392 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 88 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:22,393 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [93 Valid, 186 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:22,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-12-14 22:40:22,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 172. [2021-12-14 22:40:22,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 137 states have (on average 1.1605839416058394) internal successors, (159), 140 states have internal predecessors, (159), 21 states have call successors, (21), 8 states have call predecessors, (21), 10 states have return successors, (26), 23 states have call predecessors, (26), 21 states have call successors, (26) [2021-12-14 22:40:22,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 206 transitions. [2021-12-14 22:40:22,400 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 206 transitions. Word has length 85 [2021-12-14 22:40:22,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:22,400 INFO L470 AbstractCegarLoop]: Abstraction has 172 states and 206 transitions. [2021-12-14 22:40:22,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 11 states have internal predecessors, (62), 6 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 6 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-14 22:40:22,400 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 206 transitions. [2021-12-14 22:40:22,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-14 22:40:22,401 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:22,401 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:22,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:22,628 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2021-12-14 22:40:22,628 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:22,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:22,628 INFO L85 PathProgramCache]: Analyzing trace with hash 804951081, now seen corresponding path program 2 times [2021-12-14 22:40:22,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:22,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153411805] [2021-12-14 22:40:22,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:22,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:22,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:22,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:22,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:22,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:22,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:22,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:22,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 22:40:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:22,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:22,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:22,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:22,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:22,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 22:40:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:22,710 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 27 proven. 41 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2021-12-14 22:40:22,710 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:22,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153411805] [2021-12-14 22:40:22,710 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153411805] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:22,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079140071] [2021-12-14 22:40:22,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:22,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:22,711 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:22,711 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:22,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-14 22:40:22,747 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:22,747 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:22,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 22:40:22,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:22,884 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2021-12-14 22:40:22,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-14 22:40:22,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079140071] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 22:40:22,885 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-14 22:40:22,885 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [11] total 14 [2021-12-14 22:40:22,885 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145583330] [2021-12-14 22:40:22,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 22:40:22,885 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 22:40:22,885 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:22,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 22:40:22,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-12-14 22:40:22,886 INFO L87 Difference]: Start difference. First operand 172 states and 206 transitions. Second operand has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-14 22:40:22,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:22,914 INFO L93 Difference]: Finished difference Result 173 states and 206 transitions. [2021-12-14 22:40:22,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:22,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 86 [2021-12-14 22:40:22,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:22,915 INFO L225 Difference]: With dead ends: 173 [2021-12-14 22:40:22,915 INFO L226 Difference]: Without dead ends: 172 [2021-12-14 22:40:22,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2021-12-14 22:40:22,916 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 8 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:22,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 114 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:22,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-12-14 22:40:22,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 160. [2021-12-14 22:40:22,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 127 states have (on average 1.1496062992125984) internal successors, (146), 132 states have internal predecessors, (146), 19 states have call successors, (19), 8 states have call predecessors, (19), 10 states have return successors, (23), 19 states have call predecessors, (23), 19 states have call successors, (23) [2021-12-14 22:40:22,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 188 transitions. [2021-12-14 22:40:22,922 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 188 transitions. Word has length 86 [2021-12-14 22:40:22,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:22,922 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 188 transitions. [2021-12-14 22:40:22,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-12-14 22:40:22,923 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 188 transitions. [2021-12-14 22:40:22,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-14 22:40:22,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:22,923 INFO L514 BasicCegarLoop]: trace histogram [8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:22,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:23,139 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2021-12-14 22:40:23,139 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:23,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:23,140 INFO L85 PathProgramCache]: Analyzing trace with hash -2118179479, now seen corresponding path program 1 times [2021-12-14 22:40:23,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:23,140 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917341828] [2021-12-14 22:40:23,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:23,140 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:23,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:23,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2021-12-14 22:40:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-12-14 22:40:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:23,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:23,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 22:40:23,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,191 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 21 proven. 34 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-12-14 22:40:23,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:23,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917341828] [2021-12-14 22:40:23,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917341828] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:23,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867449736] [2021-12-14 22:40:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:23,191 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:23,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:23,207 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:23,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-14 22:40:23,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:23,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-14 22:40:23,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:23,487 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 58 proven. 37 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-12-14 22:40:23,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 34 proven. 39 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2021-12-14 22:40:23,652 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867449736] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:23,652 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:23,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 13] total 24 [2021-12-14 22:40:23,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860543439] [2021-12-14 22:40:23,652 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:23,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-14 22:40:23,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:23,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-14 22:40:23,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-12-14 22:40:23,653 INFO L87 Difference]: Start difference. First operand 160 states and 188 transitions. Second operand has 24 states, 24 states have (on average 3.875) internal successors, (93), 23 states have internal predecessors, (93), 11 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-14 22:40:24,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:24,209 INFO L93 Difference]: Finished difference Result 356 states and 417 transitions. [2021-12-14 22:40:24,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-12-14 22:40:24,210 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 23 states have internal predecessors, (93), 11 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) Word has length 87 [2021-12-14 22:40:24,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:24,211 INFO L225 Difference]: With dead ends: 356 [2021-12-14 22:40:24,211 INFO L226 Difference]: Without dead ends: 251 [2021-12-14 22:40:24,213 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 557 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=363, Invalid=2187, Unknown=0, NotChecked=0, Total=2550 [2021-12-14 22:40:24,213 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 204 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 677 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 528 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 677 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:24,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [205 Valid, 528 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 677 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:40:24,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-12-14 22:40:24,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 234. [2021-12-14 22:40:24,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 188 states have (on average 1.127659574468085) internal successors, (212), 193 states have internal predecessors, (212), 27 states have call successors, (27), 11 states have call predecessors, (27), 15 states have return successors, (35), 29 states have call predecessors, (35), 27 states have call successors, (35) [2021-12-14 22:40:24,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 274 transitions. [2021-12-14 22:40:24,231 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 274 transitions. Word has length 87 [2021-12-14 22:40:24,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:24,231 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 274 transitions. [2021-12-14 22:40:24,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 23 states have internal predecessors, (93), 11 states have call successors, (15), 3 states have call predecessors, (15), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-14 22:40:24,232 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 274 transitions. [2021-12-14 22:40:24,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2021-12-14 22:40:24,235 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:24,235 INFO L514 BasicCegarLoop]: trace histogram [10, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:24,275 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2021-12-14 22:40:24,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-12-14 22:40:24,454 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:24,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:24,455 INFO L85 PathProgramCache]: Analyzing trace with hash 111933654, now seen corresponding path program 2 times [2021-12-14 22:40:24,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:24,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684564372] [2021-12-14 22:40:24,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:24,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:24,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:24,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:24,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:24,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:24,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:24,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:24,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:24,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:24,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:24,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:24,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:24,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:24,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:24,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:24,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2021-12-14 22:40:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:24,554 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 58 proven. 50 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-12-14 22:40:24,554 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:24,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684564372] [2021-12-14 22:40:24,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684564372] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:24,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [465557965] [2021-12-14 22:40:24,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:24,555 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:24,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:24,556 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:24,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-12-14 22:40:24,594 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:24,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:24,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-14 22:40:24,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:24,869 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 88 proven. 46 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2021-12-14 22:40:24,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:25,024 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 58 proven. 50 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2021-12-14 22:40:25,024 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [465557965] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:25,024 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:25,024 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 19 [2021-12-14 22:40:25,024 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460369120] [2021-12-14 22:40:25,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:25,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-12-14 22:40:25,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:25,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-12-14 22:40:25,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-12-14 22:40:25,026 INFO L87 Difference]: Start difference. First operand 234 states and 274 transitions. Second operand has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 17 states have internal predecessors, (71), 9 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2021-12-14 22:40:25,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:25,295 INFO L93 Difference]: Finished difference Result 360 states and 431 transitions. [2021-12-14 22:40:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-12-14 22:40:25,295 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 17 states have internal predecessors, (71), 9 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) Word has length 104 [2021-12-14 22:40:25,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:25,296 INFO L225 Difference]: With dead ends: 360 [2021-12-14 22:40:25,296 INFO L226 Difference]: Without dead ends: 249 [2021-12-14 22:40:25,297 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 217 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=730, Unknown=0, NotChecked=0, Total=930 [2021-12-14 22:40:25,297 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 72 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:25,298 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 498 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 22:40:25,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2021-12-14 22:40:25,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 242. [2021-12-14 22:40:25,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 194 states have (on average 1.1237113402061856) internal successors, (218), 199 states have internal predecessors, (218), 28 states have call successors, (28), 12 states have call predecessors, (28), 16 states have return successors, (37), 30 states have call predecessors, (37), 28 states have call successors, (37) [2021-12-14 22:40:25,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 283 transitions. [2021-12-14 22:40:25,306 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 283 transitions. Word has length 104 [2021-12-14 22:40:25,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:25,306 INFO L470 AbstractCegarLoop]: Abstraction has 242 states and 283 transitions. [2021-12-14 22:40:25,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.736842105263158) internal successors, (71), 17 states have internal predecessors, (71), 9 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (9), 7 states have call predecessors, (9), 7 states have call successors, (9) [2021-12-14 22:40:25,309 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 283 transitions. [2021-12-14 22:40:25,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-14 22:40:25,311 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:25,312 INFO L514 BasicCegarLoop]: trace histogram [12, 8, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:25,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:25,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:25,527 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:25,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:25,528 INFO L85 PathProgramCache]: Analyzing trace with hash -876901040, now seen corresponding path program 1 times [2021-12-14 22:40:25,528 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:25,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556766033] [2021-12-14 22:40:25,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:25,528 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:25,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:25,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:25,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:25,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:25,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 22:40:25,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 102 proven. 55 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-14 22:40:25,608 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:25,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556766033] [2021-12-14 22:40:25,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556766033] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:25,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948616502] [2021-12-14 22:40:25,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:25,608 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:25,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:25,609 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:25,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-12-14 22:40:25,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:25,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-14 22:40:25,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 137 proven. 46 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2021-12-14 22:40:25,828 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 308 backedges. 102 proven. 55 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2021-12-14 22:40:25,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948616502] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:25,996 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:25,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 11 [2021-12-14 22:40:25,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232397025] [2021-12-14 22:40:25,997 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:25,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 22:40:25,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:25,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 22:40:25,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-12-14 22:40:26,001 INFO L87 Difference]: Start difference. First operand 242 states and 283 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 7 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:40:26,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:26,115 INFO L93 Difference]: Finished difference Result 399 states and 470 transitions. [2021-12-14 22:40:26,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-12-14 22:40:26,115 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 7 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 114 [2021-12-14 22:40:26,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:26,117 INFO L225 Difference]: With dead ends: 399 [2021-12-14 22:40:26,117 INFO L226 Difference]: Without dead ends: 257 [2021-12-14 22:40:26,117 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 245 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2021-12-14 22:40:26,118 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 66 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:26,119 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 247 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-12-14 22:40:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 250. [2021-12-14 22:40:26,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 200 states have (on average 1.12) internal successors, (224), 205 states have internal predecessors, (224), 28 states have call successors, (28), 14 states have call predecessors, (28), 18 states have return successors, (35), 30 states have call predecessors, (35), 28 states have call successors, (35) [2021-12-14 22:40:26,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 287 transitions. [2021-12-14 22:40:26,128 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 287 transitions. Word has length 114 [2021-12-14 22:40:26,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:26,128 INFO L470 AbstractCegarLoop]: Abstraction has 250 states and 287 transitions. [2021-12-14 22:40:26,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 9 states have internal predecessors, (60), 7 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2021-12-14 22:40:26,128 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 287 transitions. [2021-12-14 22:40:26,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2021-12-14 22:40:26,129 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:26,129 INFO L514 BasicCegarLoop]: trace histogram [13, 10, 8, 6, 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:26,158 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:26,345 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-12-14 22:40:26,346 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:26,347 INFO L85 PathProgramCache]: Analyzing trace with hash 296869749, now seen corresponding path program 1 times [2021-12-14 22:40:26,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:26,347 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088887894] [2021-12-14 22:40:26,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:26,347 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:26,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:26,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:26,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:26,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:26,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:26,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:26,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2021-12-14 22:40:26,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2021-12-14 22:40:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,440 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 72 proven. 79 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-14 22:40:26,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:26,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088887894] [2021-12-14 22:40:26,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088887894] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:26,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006010575] [2021-12-14 22:40:26,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:26,441 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:26,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:26,442 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:26,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-12-14 22:40:26,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:26,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 22:40:26,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:26,652 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 182 proven. 50 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2021-12-14 22:40:26,652 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:26,761 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 72 proven. 79 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2021-12-14 22:40:26,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006010575] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:26,761 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:26,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 11 [2021-12-14 22:40:26,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694728507] [2021-12-14 22:40:26,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:26,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-12-14 22:40:26,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:26,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-12-14 22:40:26,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-12-14 22:40:26,762 INFO L87 Difference]: Start difference. First operand 250 states and 287 transitions. Second operand has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 9 states have internal predecessors, (64), 5 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-12-14 22:40:26,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:26,882 INFO L93 Difference]: Finished difference Result 396 states and 456 transitions. [2021-12-14 22:40:26,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-12-14 22:40:26,882 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 9 states have internal predecessors, (64), 5 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 124 [2021-12-14 22:40:26,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:26,883 INFO L225 Difference]: With dead ends: 396 [2021-12-14 22:40:26,883 INFO L226 Difference]: Without dead ends: 258 [2021-12-14 22:40:26,884 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 268 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=295, Unknown=0, NotChecked=0, Total=380 [2021-12-14 22:40:26,884 INFO L933 BasicCegarLoop]: 45 mSDtfsCounter, 113 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:26,884 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [117 Valid, 273 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:26,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2021-12-14 22:40:26,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 251. [2021-12-14 22:40:26,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 202 states have (on average 1.108910891089109) internal successors, (224), 206 states have internal predecessors, (224), 27 states have call successors, (27), 15 states have call predecessors, (27), 18 states have return successors, (33), 29 states have call predecessors, (33), 27 states have call successors, (33) [2021-12-14 22:40:26,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 284 transitions. [2021-12-14 22:40:26,895 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 284 transitions. Word has length 124 [2021-12-14 22:40:26,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:26,895 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 284 transitions. [2021-12-14 22:40:26,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.818181818181818) internal successors, (64), 9 states have internal predecessors, (64), 5 states have call successors, (12), 4 states have call predecessors, (12), 2 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2021-12-14 22:40:26,895 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 284 transitions. [2021-12-14 22:40:26,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2021-12-14 22:40:26,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:26,896 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:26,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:27,096 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-14 22:40:27,096 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:27,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:27,097 INFO L85 PathProgramCache]: Analyzing trace with hash 895586552, now seen corresponding path program 3 times [2021-12-14 22:40:27,097 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:27,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1202605482] [2021-12-14 22:40:27,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:27,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:27,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:27,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:27,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 22:40:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 22:40:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 22:40:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 22:40:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 22:40:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 22:40:27,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 22:40:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 22:40:27,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:27,262 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-14 22:40:27,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:27,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1202605482] [2021-12-14 22:40:27,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1202605482] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:27,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407639642] [2021-12-14 22:40:27,263 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:40:27,263 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:27,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:27,279 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:27,303 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-12-14 22:40:27,347 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-14 22:40:27,347 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:27,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-14 22:40:27,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:27,516 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-14 22:40:27,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:27,939 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 0 proven. 320 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2021-12-14 22:40:27,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407639642] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:27,939 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:27,939 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 45 [2021-12-14 22:40:27,939 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828559529] [2021-12-14 22:40:27,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:27,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-12-14 22:40:27,940 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:27,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-12-14 22:40:27,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=551, Invalid=1519, Unknown=0, NotChecked=0, Total=2070 [2021-12-14 22:40:27,941 INFO L87 Difference]: Start difference. First operand 251 states and 284 transitions. Second operand has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-14 22:40:28,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:28,275 INFO L93 Difference]: Finished difference Result 715 states and 861 transitions. [2021-12-14 22:40:28,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-12-14 22:40:28,277 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Word has length 114 [2021-12-14 22:40:28,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:28,280 INFO L225 Difference]: With dead ends: 715 [2021-12-14 22:40:28,280 INFO L226 Difference]: Without dead ends: 714 [2021-12-14 22:40:28,281 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 862 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=1332, Invalid=3224, Unknown=0, NotChecked=0, Total=4556 [2021-12-14 22:40:28,281 INFO L933 BasicCegarLoop]: 61 mSDtfsCounter, 346 mSDsluCounter, 538 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:28,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [346 Valid, 599 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:28,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 714 states. [2021-12-14 22:40:28,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 714 to 323. [2021-12-14 22:40:28,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 323 states, 262 states have (on average 1.1297709923664123) internal successors, (296), 266 states have internal predecessors, (296), 39 states have call successors, (39), 15 states have call predecessors, (39), 18 states have return successors, (45), 41 states have call predecessors, (45), 39 states have call successors, (45) [2021-12-14 22:40:28,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 323 states and 380 transitions. [2021-12-14 22:40:28,294 INFO L78 Accepts]: Start accepts. Automaton has 323 states and 380 transitions. Word has length 114 [2021-12-14 22:40:28,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:28,294 INFO L470 AbstractCegarLoop]: Abstraction has 323 states and 380 transitions. [2021-12-14 22:40:28,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 2.6) internal successors, (117), 46 states have internal predecessors, (117), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2021-12-14 22:40:28,294 INFO L276 IsEmpty]: Start isEmpty. Operand 323 states and 380 transitions. [2021-12-14 22:40:28,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2021-12-14 22:40:28,296 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:28,296 INFO L514 BasicCegarLoop]: trace histogram [13, 11, 7, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:28,312 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:28,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-14 22:40:28,513 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:28,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:28,513 INFO L85 PathProgramCache]: Analyzing trace with hash -999556663, now seen corresponding path program 1 times [2021-12-14 22:40:28,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:28,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784511568] [2021-12-14 22:40:28,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:28,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:28,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:28,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:28,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 22:40:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-14 22:40:28,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:28,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:28,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,609 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 89 proven. 82 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-12-14 22:40:28,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:28,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784511568] [2021-12-14 22:40:28,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784511568] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:28,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334888888] [2021-12-14 22:40:28,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:28,610 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:28,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:28,611 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:28,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-12-14 22:40:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:28,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-14 22:40:28,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:28,817 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 89 proven. 82 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-12-14 22:40:28,817 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:28,977 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 89 proven. 82 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2021-12-14 22:40:28,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334888888] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:28,978 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:28,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 14 [2021-12-14 22:40:28,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615271680] [2021-12-14 22:40:28,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:28,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-14 22:40:28,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:28,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-14 22:40:28,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2021-12-14 22:40:28,979 INFO L87 Difference]: Start difference. First operand 323 states and 380 transitions. Second operand has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2021-12-14 22:40:29,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:29,241 INFO L93 Difference]: Finished difference Result 447 states and 525 transitions. [2021-12-14 22:40:29,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-14 22:40:29,241 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) Word has length 131 [2021-12-14 22:40:29,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:29,243 INFO L225 Difference]: With dead ends: 447 [2021-12-14 22:40:29,243 INFO L226 Difference]: Without dead ends: 326 [2021-12-14 22:40:29,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 282 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=113, Invalid=393, Unknown=0, NotChecked=0, Total=506 [2021-12-14 22:40:29,244 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 152 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:29,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 200 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:29,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-12-14 22:40:29,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 320. [2021-12-14 22:40:29,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 259 states have (on average 1.1235521235521235) internal successors, (291), 264 states have internal predecessors, (291), 39 states have call successors, (39), 15 states have call predecessors, (39), 18 states have return successors, (44), 40 states have call predecessors, (44), 39 states have call successors, (44) [2021-12-14 22:40:29,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 374 transitions. [2021-12-14 22:40:29,260 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 374 transitions. Word has length 131 [2021-12-14 22:40:29,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:29,261 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 374 transitions. [2021-12-14 22:40:29,261 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.357142857142857) internal successors, (75), 12 states have internal predecessors, (75), 7 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 7 states have call predecessors, (10), 6 states have call successors, (10) [2021-12-14 22:40:29,261 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 374 transitions. [2021-12-14 22:40:29,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2021-12-14 22:40:29,263 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:29,263 INFO L514 BasicCegarLoop]: trace histogram [16, 14, 10, 9, 9, 8, 8, 8, 8, 8, 6, 5, 5, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:29,291 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:29,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-14 22:40:29,478 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:29,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:29,478 INFO L85 PathProgramCache]: Analyzing trace with hash -277131213, now seen corresponding path program 1 times [2021-12-14 22:40:29,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:29,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783852059] [2021-12-14 22:40:29,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:29,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:29,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:29,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:29,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:29,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:29,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:29,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:29,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:29,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2021-12-14 22:40:29,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-12-14 22:40:29,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:29,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2021-12-14 22:40:29,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,584 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 241 proven. 37 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-12-14 22:40:29,585 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:29,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783852059] [2021-12-14 22:40:29,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783852059] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:29,585 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [77396093] [2021-12-14 22:40:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:29,585 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:29,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:29,591 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:29,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-12-14 22:40:29,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:29,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 22:40:29,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 409 proven. 1 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2021-12-14 22:40:29,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:30,159 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 241 proven. 37 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2021-12-14 22:40:30,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [77396093] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:30,159 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:30,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2021-12-14 22:40:30,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217641802] [2021-12-14 22:40:30,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:30,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-12-14 22:40:30,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:30,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-12-14 22:40:30,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-14 22:40:30,160 INFO L87 Difference]: Start difference. First operand 320 states and 374 transitions. Second operand has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-14 22:40:30,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:30,210 INFO L93 Difference]: Finished difference Result 438 states and 511 transitions. [2021-12-14 22:40:30,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 22:40:30,210 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 168 [2021-12-14 22:40:30,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:30,212 INFO L225 Difference]: With dead ends: 438 [2021-12-14 22:40:30,212 INFO L226 Difference]: Without dead ends: 320 [2021-12-14 22:40:30,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 370 GetRequests, 360 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-12-14 22:40:30,213 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 34 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:30,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 119 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:30,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2021-12-14 22:40:30,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 320. [2021-12-14 22:40:30,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 259 states have (on average 1.1235521235521235) internal successors, (291), 264 states have internal predecessors, (291), 39 states have call successors, (39), 15 states have call predecessors, (39), 18 states have return successors, (42), 40 states have call predecessors, (42), 39 states have call successors, (42) [2021-12-14 22:40:30,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 372 transitions. [2021-12-14 22:40:30,223 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 372 transitions. Word has length 168 [2021-12-14 22:40:30,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:30,224 INFO L470 AbstractCegarLoop]: Abstraction has 320 states and 372 transitions. [2021-12-14 22:40:30,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.0) internal successors, (70), 7 states have internal predecessors, (70), 3 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-14 22:40:30,224 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 372 transitions. [2021-12-14 22:40:30,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-14 22:40:30,225 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:30,225 INFO L514 BasicCegarLoop]: trace histogram [17, 16, 10, 9, 9, 8, 8, 8, 8, 8, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:30,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-12-14 22:40:30,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:30,441 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:30,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:30,441 INFO L85 PathProgramCache]: Analyzing trace with hash -457737177, now seen corresponding path program 2 times [2021-12-14 22:40:30,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:30,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815772314] [2021-12-14 22:40:30,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:30,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:30,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:30,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:30,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:30,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:30,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:30,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:30,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:30,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:30,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 22:40:30,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:30,534 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 58 proven. 159 refuted. 0 times theorem prover too weak. 604 trivial. 0 not checked. [2021-12-14 22:40:30,534 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:30,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815772314] [2021-12-14 22:40:30,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815772314] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:30,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508954657] [2021-12-14 22:40:30,534 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:30,535 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:30,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:30,535 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:30,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-12-14 22:40:30,600 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:30,600 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:30,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 15 conjunts are in the unsatisfiable core [2021-12-14 22:40:30,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:30,969 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 387 proven. 10 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2021-12-14 22:40:30,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 275 proven. 70 refuted. 0 times theorem prover too weak. 476 trivial. 0 not checked. [2021-12-14 22:40:31,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508954657] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:31,338 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:31,338 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 14] total 27 [2021-12-14 22:40:31,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342512609] [2021-12-14 22:40:31,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:31,339 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-12-14 22:40:31,339 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:31,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-12-14 22:40:31,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=621, Unknown=0, NotChecked=0, Total=702 [2021-12-14 22:40:31,339 INFO L87 Difference]: Start difference. First operand 320 states and 372 transitions. Second operand has 27 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 15 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 11 states have call predecessors, (18), 15 states have call successors, (18) [2021-12-14 22:40:31,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:31,975 INFO L93 Difference]: Finished difference Result 552 states and 652 transitions. [2021-12-14 22:40:31,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-14 22:40:31,975 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 15 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 11 states have call predecessors, (18), 15 states have call successors, (18) Word has length 183 [2021-12-14 22:40:31,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:31,977 INFO L225 Difference]: With dead ends: 552 [2021-12-14 22:40:31,977 INFO L226 Difference]: Without dead ends: 451 [2021-12-14 22:40:31,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 382 SyntacticMatches, 1 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 465 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=279, Invalid=1977, Unknown=0, NotChecked=0, Total=2256 [2021-12-14 22:40:31,980 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 241 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 1105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:31,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 436 Invalid, 1105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 22:40:31,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2021-12-14 22:40:32,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 439. [2021-12-14 22:40:32,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 357 states have (on average 1.123249299719888) internal successors, (401), 360 states have internal predecessors, (401), 52 states have call successors, (52), 21 states have call predecessors, (52), 26 states have return successors, (73), 57 states have call predecessors, (73), 52 states have call successors, (73) [2021-12-14 22:40:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 526 transitions. [2021-12-14 22:40:32,008 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 526 transitions. Word has length 183 [2021-12-14 22:40:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:32,008 INFO L470 AbstractCegarLoop]: Abstraction has 439 states and 526 transitions. [2021-12-14 22:40:32,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 4.777777777777778) internal successors, (129), 26 states have internal predecessors, (129), 15 states have call successors, (20), 3 states have call predecessors, (20), 4 states have return successors, (18), 11 states have call predecessors, (18), 15 states have call successors, (18) [2021-12-14 22:40:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 526 transitions. [2021-12-14 22:40:32,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-14 22:40:32,010 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:32,010 INFO L514 BasicCegarLoop]: trace histogram [20, 18, 13, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:32,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:32,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2021-12-14 22:40:32,236 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:32,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:32,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1250905414, now seen corresponding path program 3 times [2021-12-14 22:40:32,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:32,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587159340] [2021-12-14 22:40:32,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:32,237 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:32,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:32,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:32,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:32,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:32,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:32,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:32,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:32,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:32,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-12-14 22:40:32,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:32,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 222 proven. 14 refuted. 0 times theorem prover too weak. 853 trivial. 0 not checked. [2021-12-14 22:40:32,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:32,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587159340] [2021-12-14 22:40:32,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587159340] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:32,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972921020] [2021-12-14 22:40:32,342 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:40:32,342 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:32,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:32,355 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:32,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-12-14 22:40:32,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-12-14 22:40:32,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:32,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 9 conjunts are in the unsatisfiable core [2021-12-14 22:40:32,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 135 proven. 98 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2021-12-14 22:40:32,660 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:33,046 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 135 proven. 98 refuted. 0 times theorem prover too weak. 856 trivial. 0 not checked. [2021-12-14 22:40:33,047 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972921020] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:33,047 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:33,047 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 24 [2021-12-14 22:40:33,047 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979145198] [2021-12-14 22:40:33,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:33,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-14 22:40:33,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:33,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-14 22:40:33,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=528, Unknown=0, NotChecked=0, Total=600 [2021-12-14 22:40:33,049 INFO L87 Difference]: Start difference. First operand 439 states and 526 transitions. Second operand has 25 states, 24 states have (on average 4.875) internal successors, (117), 20 states have internal predecessors, (117), 13 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2021-12-14 22:40:33,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:33,644 INFO L93 Difference]: Finished difference Result 726 states and 918 transitions. [2021-12-14 22:40:33,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-14 22:40:33,644 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.875) internal successors, (117), 20 states have internal predecessors, (117), 13 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) Word has length 211 [2021-12-14 22:40:33,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:33,647 INFO L225 Difference]: With dead ends: 726 [2021-12-14 22:40:33,648 INFO L226 Difference]: Without dead ends: 716 [2021-12-14 22:40:33,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=401, Invalid=1855, Unknown=0, NotChecked=0, Total=2256 [2021-12-14 22:40:33,649 INFO L933 BasicCegarLoop]: 41 mSDtfsCounter, 357 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:33,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [357 Valid, 327 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:40:33,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2021-12-14 22:40:33,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 563. [2021-12-14 22:40:33,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 454 states have (on average 1.1365638766519823) internal successors, (516), 458 states have internal predecessors, (516), 68 states have call successors, (68), 29 states have call predecessors, (68), 38 states have return successors, (100), 75 states have call predecessors, (100), 68 states have call successors, (100) [2021-12-14 22:40:33,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 684 transitions. [2021-12-14 22:40:33,673 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 684 transitions. Word has length 211 [2021-12-14 22:40:33,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:33,673 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 684 transitions. [2021-12-14 22:40:33,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.875) internal successors, (117), 20 states have internal predecessors, (117), 13 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (13), 10 states have call predecessors, (13), 10 states have call successors, (13) [2021-12-14 22:40:33,674 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 684 transitions. [2021-12-14 22:40:33,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2021-12-14 22:40:33,676 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:33,676 INFO L514 BasicCegarLoop]: trace histogram [22, 21, 14, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:33,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:33,893 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:33,893 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:33,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:33,893 INFO L85 PathProgramCache]: Analyzing trace with hash 319058886, now seen corresponding path program 2 times [2021-12-14 22:40:33,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:33,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090576007] [2021-12-14 22:40:33,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:33,894 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:34,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:34,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:34,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:34,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:34,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:34,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:34,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:34,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:34,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 22:40:34,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-14 22:40:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:34,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 321 proven. 126 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2021-12-14 22:40:34,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:34,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090576007] [2021-12-14 22:40:34,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090576007] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:34,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666394130] [2021-12-14 22:40:34,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:34,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:34,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:34,159 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:34,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-12-14 22:40:34,232 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:34,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:34,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 542 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-14 22:40:34,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:34,763 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 411 proven. 36 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2021-12-14 22:40:34,763 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:35,128 INFO L134 CoverageAnalysis]: Checked inductivity of 1348 backedges. 321 proven. 126 refuted. 0 times theorem prover too weak. 901 trivial. 0 not checked. [2021-12-14 22:40:35,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666394130] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:35,128 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:35,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18, 18] total 30 [2021-12-14 22:40:35,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123871109] [2021-12-14 22:40:35,128 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:35,129 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-14 22:40:35,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:35,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-14 22:40:35,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=754, Unknown=0, NotChecked=0, Total=870 [2021-12-14 22:40:35,130 INFO L87 Difference]: Start difference. First operand 563 states and 684 transitions. Second operand has 30 states, 30 states have (on average 4.0) internal successors, (120), 28 states have internal predecessors, (120), 16 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-14 22:40:35,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:35,631 INFO L93 Difference]: Finished difference Result 870 states and 1102 transitions. [2021-12-14 22:40:35,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-12-14 22:40:35,631 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.0) internal successors, (120), 28 states have internal predecessors, (120), 16 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) Word has length 233 [2021-12-14 22:40:35,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:35,633 INFO L225 Difference]: With dead ends: 870 [2021-12-14 22:40:35,647 INFO L226 Difference]: Without dead ends: 590 [2021-12-14 22:40:35,649 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 497 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=302, Invalid=1860, Unknown=0, NotChecked=0, Total=2162 [2021-12-14 22:40:35,649 INFO L933 BasicCegarLoop]: 44 mSDtfsCounter, 207 mSDsluCounter, 415 mSDsCounter, 0 mSdLazyCounter, 1106 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 1187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:35,650 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [213 Valid, 459 Invalid, 1187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:40:35,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2021-12-14 22:40:35,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 491. [2021-12-14 22:40:35,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 398 states have (on average 1.1256281407035176) internal successors, (448), 399 states have internal predecessors, (448), 56 states have call successors, (56), 26 states have call predecessors, (56), 34 states have return successors, (78), 65 states have call predecessors, (78), 56 states have call successors, (78) [2021-12-14 22:40:35,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 582 transitions. [2021-12-14 22:40:35,699 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 582 transitions. Word has length 233 [2021-12-14 22:40:35,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:35,699 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 582 transitions. [2021-12-14 22:40:35,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.0) internal successors, (120), 28 states have internal predecessors, (120), 16 states have call successors, (20), 3 states have call predecessors, (20), 3 states have return successors, (18), 12 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-14 22:40:35,700 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 582 transitions. [2021-12-14 22:40:35,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-12-14 22:40:35,701 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:35,702 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:35,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:35,919 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:35,920 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:35,920 INFO L85 PathProgramCache]: Analyzing trace with hash -1501668580, now seen corresponding path program 4 times [2021-12-14 22:40:35,920 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:35,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797254461] [2021-12-14 22:40:35,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:35,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:36,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:36,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 22:40:36,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 22:40:36,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 22:40:36,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 22:40:36,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 22:40:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 22:40:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 22:40:36,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 22:40:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 22:40:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 22:40:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 22:40:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 22:40:36,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-14 22:40:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-14 22:40:36,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 22:40:36,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 22:40:36,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 22:40:36,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-14 22:40:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 22:40:36,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-14 22:40:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:36,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2508 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-12-14 22:40:36,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:36,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797254461] [2021-12-14 22:40:36,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797254461] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:36,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82568074] [2021-12-14 22:40:36,648 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 22:40:36,648 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:36,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:36,649 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:36,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-12-14 22:40:36,711 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 22:40:36,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:36,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 592 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-14 22:40:36,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:36,916 INFO L134 CoverageAnalysis]: Checked inductivity of 2508 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-12-14 22:40:36,917 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:38,096 INFO L134 CoverageAnalysis]: Checked inductivity of 2508 backedges. 0 proven. 1496 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2021-12-14 22:40:38,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82568074] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:38,096 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:38,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 93 [2021-12-14 22:40:38,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190504928] [2021-12-14 22:40:38,096 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:38,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-12-14 22:40:38,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:38,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-12-14 22:40:38,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2255, Invalid=6487, Unknown=0, NotChecked=0, Total=8742 [2021-12-14 22:40:38,099 INFO L87 Difference]: Start difference. First operand 491 states and 582 transitions. Second operand has 94 states, 93 states have (on average 2.5483870967741935) internal successors, (237), 94 states have internal predecessors, (237), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-14 22:40:39,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:39,568 INFO L93 Difference]: Finished difference Result 1506 states and 1927 transitions. [2021-12-14 22:40:39,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-12-14 22:40:39,569 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 2.5483870967741935) internal successors, (237), 94 states have internal predecessors, (237), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Word has length 234 [2021-12-14 22:40:39,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:39,573 INFO L225 Difference]: With dead ends: 1506 [2021-12-14 22:40:39,574 INFO L226 Difference]: Without dead ends: 1505 [2021-12-14 22:40:39,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 605 GetRequests, 467 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4006 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=5544, Invalid=13916, Unknown=0, NotChecked=0, Total=19460 [2021-12-14 22:40:39,578 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 1105 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 487 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:39,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 407 Invalid, 487 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:40:39,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2021-12-14 22:40:39,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 635. [2021-12-14 22:40:39,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 518 states have (on average 1.1428571428571428) internal successors, (592), 519 states have internal predecessors, (592), 80 states have call successors, (80), 26 states have call predecessors, (80), 34 states have return successors, (102), 89 states have call predecessors, (102), 80 states have call successors, (102) [2021-12-14 22:40:39,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 774 transitions. [2021-12-14 22:40:39,606 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 774 transitions. Word has length 234 [2021-12-14 22:40:39,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:39,606 INFO L470 AbstractCegarLoop]: Abstraction has 635 states and 774 transitions. [2021-12-14 22:40:39,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 2.5483870967741935) internal successors, (237), 94 states have internal predecessors, (237), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2021-12-14 22:40:39,606 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 774 transitions. [2021-12-14 22:40:39,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-14 22:40:39,609 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:39,609 INFO L514 BasicCegarLoop]: trace histogram [26, 23, 18, 10, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:39,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:39,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:39,822 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1850169535, now seen corresponding path program 3 times [2021-12-14 22:40:39,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:39,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154594492] [2021-12-14 22:40:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:39,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:39,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:39,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:39,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:39,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:39,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:39,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:39,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:39,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:39,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-14 22:40:39,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 22:40:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:39,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:40,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:40,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:40,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:40,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:40,007 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 238 proven. 239 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2021-12-14 22:40:40,007 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:40,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154594492] [2021-12-14 22:40:40,007 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154594492] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:40,007 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720538858] [2021-12-14 22:40:40,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:40:40,008 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:40,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:40,011 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:40,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-12-14 22:40:40,080 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-12-14 22:40:40,080 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:40,082 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-14 22:40:40,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 294 proven. 10 refuted. 0 times theorem prover too weak. 1508 trivial. 0 not checked. [2021-12-14 22:40:40,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:40,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1812 backedges. 308 proven. 10 refuted. 0 times theorem prover too weak. 1494 trivial. 0 not checked. [2021-12-14 22:40:40,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720538858] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:40,972 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:40,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 6, 8] total 25 [2021-12-14 22:40:40,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417787399] [2021-12-14 22:40:40,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:40,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-12-14 22:40:40,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:40,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-12-14 22:40:40,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=532, Unknown=0, NotChecked=0, Total=600 [2021-12-14 22:40:40,973 INFO L87 Difference]: Start difference. First operand 635 states and 774 transitions. Second operand has 25 states, 25 states have (on average 4.2) internal successors, (105), 23 states have internal predecessors, (105), 10 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-14 22:40:41,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:41,652 INFO L93 Difference]: Finished difference Result 1169 states and 1498 transitions. [2021-12-14 22:40:41,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-12-14 22:40:41,653 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 23 states have internal predecessors, (105), 10 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) Word has length 268 [2021-12-14 22:40:41,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:41,656 INFO L225 Difference]: With dead ends: 1169 [2021-12-14 22:40:41,656 INFO L226 Difference]: Without dead ends: 921 [2021-12-14 22:40:41,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 633 GetRequests, 575 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 887 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=434, Invalid=3106, Unknown=0, NotChecked=0, Total=3540 [2021-12-14 22:40:41,659 INFO L933 BasicCegarLoop]: 26 mSDtfsCounter, 150 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 735 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:41,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 364 Invalid, 735 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:40:41,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2021-12-14 22:40:41,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 820. [2021-12-14 22:40:41,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 820 states, 670 states have (on average 1.1313432835820896) internal successors, (758), 659 states have internal predecessors, (758), 97 states have call successors, (97), 29 states have call predecessors, (97), 50 states have return successors, (186), 131 states have call predecessors, (186), 97 states have call successors, (186) [2021-12-14 22:40:41,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 820 states to 820 states and 1041 transitions. [2021-12-14 22:40:41,698 INFO L78 Accepts]: Start accepts. Automaton has 820 states and 1041 transitions. Word has length 268 [2021-12-14 22:40:41,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:41,698 INFO L470 AbstractCegarLoop]: Abstraction has 820 states and 1041 transitions. [2021-12-14 22:40:41,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.2) internal successors, (105), 23 states have internal predecessors, (105), 10 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (16), 12 states have call predecessors, (16), 8 states have call successors, (16) [2021-12-14 22:40:41,699 INFO L276 IsEmpty]: Start isEmpty. Operand 820 states and 1041 transitions. [2021-12-14 22:40:41,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2021-12-14 22:40:41,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:41,702 INFO L514 BasicCegarLoop]: trace histogram [29, 25, 19, 11, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:41,765 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:41,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:41,916 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:41,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:41,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1561615809, now seen corresponding path program 1 times [2021-12-14 22:40:41,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:41,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49908641] [2021-12-14 22:40:41,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:41,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:41,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:42,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:42,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:42,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:42,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:42,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:42,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:42,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:42,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:42,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:42,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:42,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:42,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:42,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:42,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:42,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 22:40:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-14 22:40:42,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-14 22:40:42,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-14 22:40:42,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:42,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:42,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:42,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:42,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 459 proven. 138 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2021-12-14 22:40:42,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:42,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49908641] [2021-12-14 22:40:42,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49908641] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:42,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925502500] [2021-12-14 22:40:42,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:42,082 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:42,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:42,108 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:42,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-12-14 22:40:42,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:42,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-14 22:40:42,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:42,594 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 1147 proven. 18 refuted. 0 times theorem prover too weak. 1024 trivial. 0 not checked. [2021-12-14 22:40:42,594 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:43,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2189 backedges. 459 proven. 138 refuted. 0 times theorem prover too weak. 1592 trivial. 0 not checked. [2021-12-14 22:40:43,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925502500] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:43,051 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:43,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 13 [2021-12-14 22:40:43,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214738877] [2021-12-14 22:40:43,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:43,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-14 22:40:43,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:43,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-14 22:40:43,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-12-14 22:40:43,053 INFO L87 Difference]: Start difference. First operand 820 states and 1041 transitions. Second operand has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 10 states have internal predecessors, (80), 7 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2021-12-14 22:40:43,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:43,260 INFO L93 Difference]: Finished difference Result 1327 states and 1726 transitions. [2021-12-14 22:40:43,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-14 22:40:43,260 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 10 states have internal predecessors, (80), 7 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 292 [2021-12-14 22:40:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:43,264 INFO L225 Difference]: With dead ends: 1327 [2021-12-14 22:40:43,265 INFO L226 Difference]: Without dead ends: 919 [2021-12-14 22:40:43,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 655 GetRequests, 637 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2021-12-14 22:40:43,267 INFO L933 BasicCegarLoop]: 33 mSDtfsCounter, 86 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:43,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 242 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:43,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 919 states. [2021-12-14 22:40:43,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 919 to 847. [2021-12-14 22:40:43,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 847 states, 690 states have (on average 1.1202898550724638) internal successors, (773), 682 states have internal predecessors, (773), 102 states have call successors, (102), 34 states have call predecessors, (102), 52 states have return successors, (172), 130 states have call predecessors, (172), 102 states have call successors, (172) [2021-12-14 22:40:43,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1047 transitions. [2021-12-14 22:40:43,299 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1047 transitions. Word has length 292 [2021-12-14 22:40:43,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:43,300 INFO L470 AbstractCegarLoop]: Abstraction has 847 states and 1047 transitions. [2021-12-14 22:40:43,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.153846153846154) internal successors, (80), 10 states have internal predecessors, (80), 7 states have call successors, (16), 5 states have call predecessors, (16), 2 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2021-12-14 22:40:43,300 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1047 transitions. [2021-12-14 22:40:43,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-12-14 22:40:43,304 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:43,305 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 16, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 22:40:43,321 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:43,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-12-14 22:40:43,521 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:43,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:43,521 INFO L85 PathProgramCache]: Analyzing trace with hash -2074477219, now seen corresponding path program 2 times [2021-12-14 22:40:43,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:43,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179401113] [2021-12-14 22:40:43,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:43,521 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:43,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:43,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:43,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:43,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:43,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:43,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:43,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:43,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:43,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:43,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:43,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:43,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:43,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 22:40:43,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-14 22:40:43,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:43,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:43,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:43,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:43,667 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 300 proven. 10 refuted. 0 times theorem prover too weak. 1315 trivial. 0 not checked. [2021-12-14 22:40:43,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:43,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179401113] [2021-12-14 22:40:43,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179401113] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:43,668 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747254939] [2021-12-14 22:40:43,668 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:43,668 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:43,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:43,679 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:43,695 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-12-14 22:40:43,769 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:43,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:43,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-14 22:40:43,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:44,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 68 proven. 18 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2021-12-14 22:40:44,049 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 68 proven. 18 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2021-12-14 22:40:44,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747254939] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:44,338 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:44,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2021-12-14 22:40:44,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134052866] [2021-12-14 22:40:44,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:44,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-14 22:40:44,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:44,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 22:40:44,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-12-14 22:40:44,342 INFO L87 Difference]: Start difference. First operand 847 states and 1047 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-14 22:40:44,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:44,394 INFO L93 Difference]: Finished difference Result 932 states and 1188 transitions. [2021-12-14 22:40:44,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 22:40:44,394 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) Word has length 255 [2021-12-14 22:40:44,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:44,397 INFO L225 Difference]: With dead ends: 932 [2021-12-14 22:40:44,398 INFO L226 Difference]: Without dead ends: 931 [2021-12-14 22:40:44,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 560 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-14 22:40:44,399 INFO L933 BasicCegarLoop]: 40 mSDtfsCounter, 11 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:44,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 150 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:40:44,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 931 states. [2021-12-14 22:40:44,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 931 to 870. [2021-12-14 22:40:44,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 870 states, 706 states have (on average 1.114730878186969) internal successors, (787), 700 states have internal predecessors, (787), 106 states have call successors, (106), 34 states have call predecessors, (106), 55 states have return successors, (198), 135 states have call predecessors, (198), 106 states have call successors, (198) [2021-12-14 22:40:44,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 870 states to 870 states and 1091 transitions. [2021-12-14 22:40:44,430 INFO L78 Accepts]: Start accepts. Automaton has 870 states and 1091 transitions. Word has length 255 [2021-12-14 22:40:44,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:44,430 INFO L470 AbstractCegarLoop]: Abstraction has 870 states and 1091 transitions. [2021-12-14 22:40:44,431 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (6), 1 states have call predecessors, (6), 3 states have return successors, (10), 5 states have call predecessors, (10), 3 states have call successors, (10) [2021-12-14 22:40:44,431 INFO L276 IsEmpty]: Start isEmpty. Operand 870 states and 1091 transitions. [2021-12-14 22:40:44,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2021-12-14 22:40:44,432 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:44,433 INFO L514 BasicCegarLoop]: trace histogram [25, 24, 17, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-14 22:40:44,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:44,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-12-14 22:40:44,650 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:44,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:44,650 INFO L85 PathProgramCache]: Analyzing trace with hash 100314335, now seen corresponding path program 4 times [2021-12-14 22:40:44,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:44,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546919491] [2021-12-14 22:40:44,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:44,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:44,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:44,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:44,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:44,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:44,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:44,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:44,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:44,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:44,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:44,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:44,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:44,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:44,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:44,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 22:40:44,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-14 22:40:44,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:44,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:44,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:44,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:44,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 22:40:44,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 418 proven. 55 refuted. 0 times theorem prover too weak. 1266 trivial. 0 not checked. [2021-12-14 22:40:44,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:44,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546919491] [2021-12-14 22:40:44,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546919491] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:44,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821257203] [2021-12-14 22:40:44,822 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 22:40:44,823 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:44,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:44,823 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:44,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-12-14 22:40:44,904 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 22:40:44,904 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:44,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 21 conjunts are in the unsatisfiable core [2021-12-14 22:40:44,912 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:45,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 483 proven. 263 refuted. 0 times theorem prover too weak. 993 trivial. 0 not checked. [2021-12-14 22:40:45,352 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1739 backedges. 475 proven. 272 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2021-12-14 22:40:46,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [821257203] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:46,322 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:46,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 16, 17] total 33 [2021-12-14 22:40:46,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295454890] [2021-12-14 22:40:46,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:46,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-14 22:40:46,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:46,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-14 22:40:46,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=939, Unknown=0, NotChecked=0, Total=1056 [2021-12-14 22:40:46,325 INFO L87 Difference]: Start difference. First operand 870 states and 1091 transitions. Second operand has 33 states, 33 states have (on average 4.757575757575758) internal successors, (157), 32 states have internal predecessors, (157), 17 states have call successors, (22), 3 states have call predecessors, (22), 8 states have return successors, (23), 13 states have call predecessors, (23), 15 states have call successors, (23) [2021-12-14 22:40:47,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:47,687 INFO L93 Difference]: Finished difference Result 2186 states and 3124 transitions. [2021-12-14 22:40:47,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-12-14 22:40:47,687 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.757575757575758) internal successors, (157), 32 states have internal predecessors, (157), 17 states have call successors, (22), 3 states have call predecessors, (22), 8 states have return successors, (23), 13 states have call predecessors, (23), 15 states have call successors, (23) Word has length 262 [2021-12-14 22:40:47,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:47,694 INFO L225 Difference]: With dead ends: 2186 [2021-12-14 22:40:47,694 INFO L226 Difference]: Without dead ends: 1712 [2021-12-14 22:40:47,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 641 GetRequests, 566 SyntacticMatches, 3 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1118 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1008, Invalid=4394, Unknown=0, NotChecked=0, Total=5402 [2021-12-14 22:40:47,698 INFO L933 BasicCegarLoop]: 51 mSDtfsCounter, 646 mSDsluCounter, 595 mSDsCounter, 0 mSdLazyCounter, 1675 mSolverCounterSat, 502 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 648 SdHoareTripleChecker+Valid, 646 SdHoareTripleChecker+Invalid, 2177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 502 IncrementalHoareTripleChecker+Valid, 1675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:47,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [648 Valid, 646 Invalid, 2177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [502 Valid, 1675 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-12-14 22:40:47,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1712 states. [2021-12-14 22:40:47,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1712 to 1405. [2021-12-14 22:40:47,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1405 states, 1134 states have (on average 1.1111111111111112) internal successors, (1260), 1116 states have internal predecessors, (1260), 167 states have call successors, (167), 56 states have call predecessors, (167), 101 states have return successors, (506), 232 states have call predecessors, (506), 166 states have call successors, (506) [2021-12-14 22:40:47,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1405 states to 1405 states and 1933 transitions. [2021-12-14 22:40:47,762 INFO L78 Accepts]: Start accepts. Automaton has 1405 states and 1933 transitions. Word has length 262 [2021-12-14 22:40:47,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:47,762 INFO L470 AbstractCegarLoop]: Abstraction has 1405 states and 1933 transitions. [2021-12-14 22:40:47,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.757575757575758) internal successors, (157), 32 states have internal predecessors, (157), 17 states have call successors, (22), 3 states have call predecessors, (22), 8 states have return successors, (23), 13 states have call predecessors, (23), 15 states have call successors, (23) [2021-12-14 22:40:47,762 INFO L276 IsEmpty]: Start isEmpty. Operand 1405 states and 1933 transitions. [2021-12-14 22:40:47,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-12-14 22:40:47,765 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:47,766 INFO L514 BasicCegarLoop]: trace histogram [39, 34, 27, 16, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-14 22:40:47,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:47,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-12-14 22:40:47,979 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:47,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:47,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1520651067, now seen corresponding path program 5 times [2021-12-14 22:40:47,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:47,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207489912] [2021-12-14 22:40:47,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:47,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:48,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:48,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:48,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:48,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 22:40:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:48,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2021-12-14 22:40:48,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-14 22:40:48,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2021-12-14 22:40:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:48,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2021-12-14 22:40:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-14 22:40:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:48,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:48,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:48,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4012 backedges. 917 proven. 487 refuted. 0 times theorem prover too weak. 2608 trivial. 0 not checked. [2021-12-14 22:40:48,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:48,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207489912] [2021-12-14 22:40:48,203 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207489912] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:48,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071441452] [2021-12-14 22:40:48,203 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-14 22:40:48,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:48,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:48,205 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:48,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-12-14 22:40:48,272 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-12-14 22:40:48,273 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:48,273 INFO L263 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-14 22:40:48,276 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:48,784 INFO L134 CoverageAnalysis]: Checked inductivity of 4012 backedges. 2021 proven. 2 refuted. 0 times theorem prover too weak. 1989 trivial. 0 not checked. [2021-12-14 22:40:48,784 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:49,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4012 backedges. 493 proven. 240 refuted. 0 times theorem prover too weak. 3279 trivial. 0 not checked. [2021-12-14 22:40:49,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071441452] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:49,290 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:49,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7, 7] total 18 [2021-12-14 22:40:49,290 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341925051] [2021-12-14 22:40:49,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:49,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-14 22:40:49,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:49,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-14 22:40:49,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-12-14 22:40:49,291 INFO L87 Difference]: Start difference. First operand 1405 states and 1933 transitions. Second operand has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 17 states have internal predecessors, (116), 9 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 8 states have call predecessors, (17), 9 states have call successors, (17) [2021-12-14 22:40:49,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:49,626 INFO L93 Difference]: Finished difference Result 2689 states and 3844 transitions. [2021-12-14 22:40:49,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-14 22:40:49,627 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 17 states have internal predecessors, (116), 9 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 8 states have call predecessors, (17), 9 states have call successors, (17) Word has length 385 [2021-12-14 22:40:49,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:49,634 INFO L225 Difference]: With dead ends: 2689 [2021-12-14 22:40:49,634 INFO L226 Difference]: Without dead ends: 1671 [2021-12-14 22:40:49,639 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 863 GetRequests, 832 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=765, Unknown=0, NotChecked=0, Total=930 [2021-12-14 22:40:49,643 INFO L933 BasicCegarLoop]: 48 mSDtfsCounter, 156 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 517 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 517 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:49,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 441 Invalid, 585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 517 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-14 22:40:49,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1671 states. [2021-12-14 22:40:49,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1671 to 1499. [2021-12-14 22:40:49,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1206 states have (on average 1.1077943615257049) internal successors, (1336), 1188 states have internal predecessors, (1336), 190 states have call successors, (190), 55 states have call predecessors, (190), 100 states have return successors, (597), 255 states have call predecessors, (597), 189 states have call successors, (597) [2021-12-14 22:40:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2123 transitions. [2021-12-14 22:40:49,727 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2123 transitions. Word has length 385 [2021-12-14 22:40:49,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:49,727 INFO L470 AbstractCegarLoop]: Abstraction has 1499 states and 2123 transitions. [2021-12-14 22:40:49,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 17 states have internal predecessors, (116), 9 states have call successors, (18), 3 states have call predecessors, (18), 5 states have return successors, (17), 8 states have call predecessors, (17), 9 states have call successors, (17) [2021-12-14 22:40:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2123 transitions. [2021-12-14 22:40:49,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 362 [2021-12-14 22:40:49,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:49,730 INFO L514 BasicCegarLoop]: trace histogram [37, 31, 26, 16, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-14 22:40:49,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:49,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-12-14 22:40:49,947 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:49,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:49,947 INFO L85 PathProgramCache]: Analyzing trace with hash -761357549, now seen corresponding path program 6 times [2021-12-14 22:40:49,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:49,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867435267] [2021-12-14 22:40:49,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:49,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:50,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:50,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:50,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:50,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:50,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:50,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:50,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:50,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-14 22:40:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-14 22:40:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-14 22:40:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:50,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-14 22:40:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-14 22:40:50,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:50,082 INFO L134 CoverageAnalysis]: Checked inductivity of 3518 backedges. 644 proven. 353 refuted. 0 times theorem prover too weak. 2521 trivial. 0 not checked. [2021-12-14 22:40:50,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:50,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867435267] [2021-12-14 22:40:50,083 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867435267] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:50,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005751674] [2021-12-14 22:40:50,083 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-14 22:40:50,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:50,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:50,084 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:50,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-12-14 22:40:50,159 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-12-14 22:40:50,159 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:50,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 13 conjunts are in the unsatisfiable core [2021-12-14 22:40:50,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:50,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3518 backedges. 1994 proven. 12 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2021-12-14 22:40:50,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:50,879 INFO L134 CoverageAnalysis]: Checked inductivity of 3518 backedges. 644 proven. 353 refuted. 0 times theorem prover too weak. 2521 trivial. 0 not checked. [2021-12-14 22:40:50,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005751674] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:50,879 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:50,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 13 [2021-12-14 22:40:50,880 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317315455] [2021-12-14 22:40:50,880 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:50,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-14 22:40:50,880 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:50,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-14 22:40:50,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-14 22:40:50,880 INFO L87 Difference]: Start difference. First operand 1499 states and 2123 transitions. Second operand has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-14 22:40:51,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:51,092 INFO L93 Difference]: Finished difference Result 1783 states and 2554 transitions. [2021-12-14 22:40:51,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-12-14 22:40:51,092 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) Word has length 361 [2021-12-14 22:40:51,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:51,098 INFO L225 Difference]: With dead ends: 1783 [2021-12-14 22:40:51,099 INFO L226 Difference]: Without dead ends: 1539 [2021-12-14 22:40:51,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 803 GetRequests, 786 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2021-12-14 22:40:51,100 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 109 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 301 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:51,101 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 311 Invalid, 301 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-14 22:40:51,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1539 states. [2021-12-14 22:40:51,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1539 to 1498. [2021-12-14 22:40:51,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1498 states, 1206 states have (on average 1.1061359867330016) internal successors, (1334), 1187 states have internal predecessors, (1334), 189 states have call successors, (189), 55 states have call predecessors, (189), 100 states have return successors, (597), 255 states have call predecessors, (597), 189 states have call successors, (597) [2021-12-14 22:40:51,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1498 states to 1498 states and 2120 transitions. [2021-12-14 22:40:51,152 INFO L78 Accepts]: Start accepts. Automaton has 1498 states and 2120 transitions. Word has length 361 [2021-12-14 22:40:51,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:51,152 INFO L470 AbstractCegarLoop]: Abstraction has 1498 states and 2120 transitions. [2021-12-14 22:40:51,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.3076923076923075) internal successors, (82), 11 states have internal predecessors, (82), 7 states have call successors, (15), 4 states have call predecessors, (15), 2 states have return successors, (12), 5 states have call predecessors, (12), 5 states have call successors, (12) [2021-12-14 22:40:51,153 INFO L276 IsEmpty]: Start isEmpty. Operand 1498 states and 2120 transitions. [2021-12-14 22:40:51,155 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 398 [2021-12-14 22:40:51,156 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:51,156 INFO L514 BasicCegarLoop]: trace histogram [40, 35, 28, 17, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, 9, 9, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-14 22:40:51,174 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:51,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-12-14 22:40:51,372 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:51,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:51,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1586117631, now seen corresponding path program 7 times [2021-12-14 22:40:51,372 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:51,372 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445597792] [2021-12-14 22:40:51,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:51,372 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:51,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:51,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 22:40:51,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 22:40:51,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2021-12-14 22:40:51,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2021-12-14 22:40:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-14 22:40:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:51,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 22:40:51,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:51,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 274 [2021-12-14 22:40:51,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-14 22:40:51,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-14 22:40:51,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:51,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-14 22:40:51,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:51,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:51,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,677 INFO L134 CoverageAnalysis]: Checked inductivity of 4269 backedges. 793 proven. 548 refuted. 0 times theorem prover too weak. 2928 trivial. 0 not checked. [2021-12-14 22:40:51,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:51,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445597792] [2021-12-14 22:40:51,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445597792] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:51,677 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1132333831] [2021-12-14 22:40:51,677 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-14 22:40:51,677 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:51,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:51,696 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:51,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-12-14 22:40:51,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:51,862 INFO L263 TraceCheckSpWp]: Trace formula consists of 909 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-14 22:40:51,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 4269 backedges. 2048 proven. 143 refuted. 0 times theorem prover too weak. 2078 trivial. 0 not checked. [2021-12-14 22:40:52,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:53,022 INFO L134 CoverageAnalysis]: Checked inductivity of 4269 backedges. 593 proven. 430 refuted. 0 times theorem prover too weak. 3246 trivial. 0 not checked. [2021-12-14 22:40:53,023 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1132333831] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:53,023 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:53,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 17, 17] total 42 [2021-12-14 22:40:53,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773907628] [2021-12-14 22:40:53,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:53,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-12-14 22:40:53,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:53,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-12-14 22:40:53,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=1574, Unknown=0, NotChecked=0, Total=1722 [2021-12-14 22:40:53,026 INFO L87 Difference]: Start difference. First operand 1498 states and 2120 transitions. Second operand has 42 states, 42 states have (on average 3.642857142857143) internal successors, (153), 42 states have internal predecessors, (153), 19 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 19 states have call predecessors, (26), 19 states have call successors, (26) [2021-12-14 22:40:54,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:54,636 INFO L93 Difference]: Finished difference Result 2899 states and 4134 transitions. [2021-12-14 22:40:54,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-12-14 22:40:54,637 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 3.642857142857143) internal successors, (153), 42 states have internal predecessors, (153), 19 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 19 states have call predecessors, (26), 19 states have call successors, (26) Word has length 397 [2021-12-14 22:40:54,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:54,647 INFO L225 Difference]: With dead ends: 2899 [2021-12-14 22:40:54,647 INFO L226 Difference]: Without dead ends: 1751 [2021-12-14 22:40:54,653 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 841 SyntacticMatches, 2 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1825 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1014, Invalid=6642, Unknown=0, NotChecked=0, Total=7656 [2021-12-14 22:40:54,653 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 237 mSDsluCounter, 659 mSDsCounter, 0 mSdLazyCounter, 2062 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 2167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 2062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:54,654 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 693 Invalid, 2167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 2062 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-14 22:40:54,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2021-12-14 22:40:54,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1589. [2021-12-14 22:40:54,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1589 states, 1286 states have (on average 1.1026438569206842) internal successors, (1418), 1265 states have internal predecessors, (1418), 200 states have call successors, (200), 55 states have call predecessors, (200), 100 states have return successors, (611), 268 states have call predecessors, (611), 200 states have call successors, (611) [2021-12-14 22:40:54,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1589 states to 1589 states and 2229 transitions. [2021-12-14 22:40:54,719 INFO L78 Accepts]: Start accepts. Automaton has 1589 states and 2229 transitions. Word has length 397 [2021-12-14 22:40:54,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:54,719 INFO L470 AbstractCegarLoop]: Abstraction has 1589 states and 2229 transitions. [2021-12-14 22:40:54,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.642857142857143) internal successors, (153), 42 states have internal predecessors, (153), 19 states have call successors, (26), 2 states have call predecessors, (26), 4 states have return successors, (26), 19 states have call predecessors, (26), 19 states have call successors, (26) [2021-12-14 22:40:54,720 INFO L276 IsEmpty]: Start isEmpty. Operand 1589 states and 2229 transitions. [2021-12-14 22:40:54,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2021-12-14 22:40:54,727 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:54,727 INFO L514 BasicCegarLoop]: trace histogram [45, 40, 31, 19, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-14 22:40:54,750 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:54,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2021-12-14 22:40:54,947 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:54,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:54,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1613166641, now seen corresponding path program 8 times [2021-12-14 22:40:54,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:54,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793770016] [2021-12-14 22:40:54,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:54,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 22:40:55,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 22:40:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 22:40:55,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:55,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 22:40:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 22:40:55,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 22:40:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-14 22:40:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:55,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-14 22:40:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:55,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:55,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:55,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-14 22:40:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2021-12-14 22:40:55,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2021-12-14 22:40:55,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:55,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:55,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 399 [2021-12-14 22:40:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:55,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:55,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5476 backedges. 982 proven. 386 refuted. 0 times theorem prover too weak. 4108 trivial. 0 not checked. [2021-12-14 22:40:55,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:55,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793770016] [2021-12-14 22:40:55,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793770016] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:55,152 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1883804761] [2021-12-14 22:40:55,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-14 22:40:55,152 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:55,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:55,167 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:55,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-12-14 22:40:55,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-14 22:40:55,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:55,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-14 22:40:55,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:56,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5476 backedges. 2433 proven. 279 refuted. 0 times theorem prover too weak. 2764 trivial. 0 not checked. [2021-12-14 22:40:56,009 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:56,628 INFO L134 CoverageAnalysis]: Checked inductivity of 5476 backedges. 727 proven. 511 refuted. 0 times theorem prover too weak. 4238 trivial. 0 not checked. [2021-12-14 22:40:56,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1883804761] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:56,628 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:56,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 16] total 30 [2021-12-14 22:40:56,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029715270] [2021-12-14 22:40:56,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:56,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-12-14 22:40:56,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:56,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-12-14 22:40:56,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=760, Unknown=0, NotChecked=0, Total=870 [2021-12-14 22:40:56,629 INFO L87 Difference]: Start difference. First operand 1589 states and 2229 transitions. Second operand has 30 states, 30 states have (on average 4.266666666666667) internal successors, (128), 28 states have internal predecessors, (128), 14 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-14 22:40:57,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:40:57,346 INFO L93 Difference]: Finished difference Result 2832 states and 4053 transitions. [2021-12-14 22:40:57,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-14 22:40:57,346 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 4.266666666666667) internal successors, (128), 28 states have internal predecessors, (128), 14 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) Word has length 448 [2021-12-14 22:40:57,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:40:57,353 INFO L225 Difference]: With dead ends: 2832 [2021-12-14 22:40:57,353 INFO L226 Difference]: Without dead ends: 1722 [2021-12-14 22:40:57,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1018 GetRequests, 956 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 926 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=627, Invalid=3279, Unknown=0, NotChecked=0, Total=3906 [2021-12-14 22:40:57,358 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 203 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 959 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 1026 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-14 22:40:57,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 299 Invalid, 1026 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 959 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-14 22:40:57,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1722 states. [2021-12-14 22:40:57,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1722 to 1647. [2021-12-14 22:40:57,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1334 states have (on average 1.1019490254872564) internal successors, (1470), 1311 states have internal predecessors, (1470), 203 states have call successors, (203), 58 states have call predecessors, (203), 107 states have return successors, (624), 277 states have call predecessors, (624), 203 states have call successors, (624) [2021-12-14 22:40:57,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2297 transitions. [2021-12-14 22:40:57,440 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2297 transitions. Word has length 448 [2021-12-14 22:40:57,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:40:57,440 INFO L470 AbstractCegarLoop]: Abstraction has 1647 states and 2297 transitions. [2021-12-14 22:40:57,440 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.266666666666667) internal successors, (128), 28 states have internal predecessors, (128), 14 states have call successors, (21), 4 states have call predecessors, (21), 4 states have return successors, (20), 12 states have call predecessors, (20), 12 states have call successors, (20) [2021-12-14 22:40:57,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2297 transitions. [2021-12-14 22:40:57,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-12-14 22:40:57,444 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:40:57,444 INFO L514 BasicCegarLoop]: trace histogram [51, 44, 36, 23, 17, 17, 17, 17, 16, 16, 16, 16, 16, 15, 13, 13, 13, 12, 12, 12, 12, 11, 11, 11, 11, 11, 6, 6, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-12-14 22:40:57,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2021-12-14 22:40:57,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:57,651 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:40:57,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:40:57,652 INFO L85 PathProgramCache]: Analyzing trace with hash -636567685, now seen corresponding path program 9 times [2021-12-14 22:40:57,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:40:57,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814774987] [2021-12-14 22:40:57,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:40:57,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:40:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:40:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:40:57,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 22:40:57,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 22:40:57,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 22:40:57,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 22:40:57,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:57,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 22:40:57,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:57,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 22:40:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-14 22:40:57,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-14 22:40:57,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:57,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-14 22:40:57,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-14 22:40:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 365 [2021-12-14 22:40:57,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:57,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2021-12-14 22:40:57,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:40:57,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-12-14 22:40:57,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:40:57,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:40:57,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:40:57,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:40:57,916 INFO L134 CoverageAnalysis]: Checked inductivity of 6839 backedges. 1015 proven. 703 refuted. 0 times theorem prover too weak. 5121 trivial. 0 not checked. [2021-12-14 22:40:57,916 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:40:57,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814774987] [2021-12-14 22:40:57,917 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814774987] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:40:57,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676092362] [2021-12-14 22:40:57,917 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:40:57,917 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:40:57,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:40:57,918 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:40:57,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-12-14 22:40:58,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-12-14 22:40:58,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:40:58,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 725 conjuncts, 17 conjunts are in the unsatisfiable core [2021-12-14 22:40:58,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:40:58,828 INFO L134 CoverageAnalysis]: Checked inductivity of 6839 backedges. 1129 proven. 68 refuted. 0 times theorem prover too weak. 5642 trivial. 0 not checked. [2021-12-14 22:40:58,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:40:59,943 INFO L134 CoverageAnalysis]: Checked inductivity of 6839 backedges. 1129 proven. 74 refuted. 0 times theorem prover too weak. 5636 trivial. 0 not checked. [2021-12-14 22:40:59,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676092362] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:40:59,943 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:40:59,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 14] total 33 [2021-12-14 22:40:59,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099015292] [2021-12-14 22:40:59,944 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:40:59,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-14 22:40:59,945 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:40:59,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-14 22:40:59,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=962, Unknown=0, NotChecked=0, Total=1056 [2021-12-14 22:40:59,946 INFO L87 Difference]: Start difference. First operand 1647 states and 2297 transitions. Second operand has 33 states, 33 states have (on average 4.818181818181818) internal successors, (159), 30 states have internal predecessors, (159), 18 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (23), 14 states have call predecessors, (23), 16 states have call successors, (23) [2021-12-14 22:41:02,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:02,120 INFO L93 Difference]: Finished difference Result 4126 states and 7002 transitions. [2021-12-14 22:41:02,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-12-14 22:41:02,121 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 4.818181818181818) internal successors, (159), 30 states have internal predecessors, (159), 18 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (23), 14 states have call predecessors, (23), 16 states have call successors, (23) Word has length 495 [2021-12-14 22:41:02,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:02,136 INFO L225 Difference]: With dead ends: 4126 [2021-12-14 22:41:02,137 INFO L226 Difference]: Without dead ends: 2881 [2021-12-14 22:41:02,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1151 GetRequests, 1069 SyntacticMatches, 2 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1482 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1127, Invalid=5515, Unknown=0, NotChecked=0, Total=6642 [2021-12-14 22:41:02,155 INFO L933 BasicCegarLoop]: 58 mSDtfsCounter, 1253 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 1344 mSolverCounterSat, 893 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1253 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 2237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 893 IncrementalHoareTripleChecker+Valid, 1344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:02,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1253 Valid, 598 Invalid, 2237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [893 Valid, 1344 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-14 22:41:02,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2881 states. [2021-12-14 22:41:02,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2881 to 2179. [2021-12-14 22:41:02,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2179 states, 1754 states have (on average 1.0917901938426453) internal successors, (1915), 1744 states have internal predecessors, (1915), 271 states have call successors, (271), 104 states have call predecessors, (271), 151 states have return successors, (580), 330 states have call predecessors, (580), 271 states have call successors, (580) [2021-12-14 22:41:02,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2179 states to 2179 states and 2766 transitions. [2021-12-14 22:41:02,274 INFO L78 Accepts]: Start accepts. Automaton has 2179 states and 2766 transitions. Word has length 495 [2021-12-14 22:41:02,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:02,276 INFO L470 AbstractCegarLoop]: Abstraction has 2179 states and 2766 transitions. [2021-12-14 22:41:02,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.818181818181818) internal successors, (159), 30 states have internal predecessors, (159), 18 states have call successors, (26), 5 states have call predecessors, (26), 7 states have return successors, (23), 14 states have call predecessors, (23), 16 states have call successors, (23) [2021-12-14 22:41:02,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2179 states and 2766 transitions. [2021-12-14 22:41:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2021-12-14 22:41:02,282 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:02,282 INFO L514 BasicCegarLoop]: trace histogram [57, 56, 42, 23, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 18, 18, 15, 15, 15, 14, 14, 14, 14, 14, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2021-12-14 22:41:02,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:02,498 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:02,499 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting partsErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:41:02,499 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:02,499 INFO L85 PathProgramCache]: Analyzing trace with hash -1349692771, now seen corresponding path program 10 times [2021-12-14 22:41:02,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:02,499 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12850485] [2021-12-14 22:41:02,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:02,499 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:41:02,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:41:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 22:41:02,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 22:41:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 22:41:02,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 22:41:02,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:41:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 22:41:02,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:41:02,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 22:41:02,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-14 22:41:02,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:41:02,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-14 22:41:02,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:41:02,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2021-12-14 22:41:02,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:41:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:41:02,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2021-12-14 22:41:02,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2021-12-14 22:41:02,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:41:02,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 22:41:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 487 [2021-12-14 22:41:02,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:41:02,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 524 [2021-12-14 22:41:02,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:02,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:41:02,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 22:41:02,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:02,825 INFO L134 CoverageAnalysis]: Checked inductivity of 9727 backedges. 1501 proven. 32 refuted. 0 times theorem prover too weak. 8194 trivial. 0 not checked. [2021-12-14 22:41:02,825 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12850485] [2021-12-14 22:41:02,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12850485] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:02,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716648977] [2021-12-14 22:41:02,825 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-14 22:41:02,825 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:02,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:02,840 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:02,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-12-14 22:41:02,999 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-14 22:41:02,999 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:03,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-14 22:41:03,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:03,741 INFO L134 CoverageAnalysis]: Checked inductivity of 9727 backedges. 1501 proven. 32 refuted. 0 times theorem prover too weak. 8194 trivial. 0 not checked. [2021-12-14 22:41:03,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 9727 backedges. 1558 proven. 32 refuted. 0 times theorem prover too weak. 8137 trivial. 0 not checked. [2021-12-14 22:41:04,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716648977] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:04,923 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:04,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 10] total 14 [2021-12-14 22:41:04,924 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039423023] [2021-12-14 22:41:04,924 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:04,924 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-14 22:41:04,924 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:04,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-14 22:41:04,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2021-12-14 22:41:04,925 INFO L87 Difference]: Start difference. First operand 2179 states and 2766 transitions. Second operand has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (14), 11 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-14 22:41:05,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:05,103 INFO L93 Difference]: Finished difference Result 2663 states and 3529 transitions. [2021-12-14 22:41:05,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-14 22:41:05,104 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (14), 11 states have call predecessors, (14), 3 states have call successors, (14) Word has length 594 [2021-12-14 22:41:05,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:05,124 INFO L225 Difference]: With dead ends: 2663 [2021-12-14 22:41:05,125 INFO L226 Difference]: Without dead ends: 2662 [2021-12-14 22:41:05,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1327 GetRequests, 1308 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2021-12-14 22:41:05,126 INFO L933 BasicCegarLoop]: 39 mSDtfsCounter, 36 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:05,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 264 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 22:41:05,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2021-12-14 22:41:05,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2484. [2021-12-14 22:41:05,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2484 states, 1994 states have (on average 1.083751253761284) internal successors, (2161), 1968 states have internal predecessors, (2161), 307 states have call successors, (307), 104 states have call predecessors, (307), 180 states have return successors, (797), 411 states have call predecessors, (797), 307 states have call successors, (797) [2021-12-14 22:41:05,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 3265 transitions. [2021-12-14 22:41:05,213 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 3265 transitions. Word has length 594 [2021-12-14 22:41:05,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:05,214 INFO L470 AbstractCegarLoop]: Abstraction has 2484 states and 3265 transitions. [2021-12-14 22:41:05,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.285714285714286) internal successors, (60), 13 states have internal predecessors, (60), 3 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (14), 11 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-14 22:41:05,214 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 3265 transitions. [2021-12-14 22:41:05,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2021-12-14 22:41:05,219 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:05,219 INFO L514 BasicCegarLoop]: trace histogram [51, 48, 38, 21, 18, 18, 18, 18, 17, 16, 16, 16, 16, 16, 16, 16, 16, 15, 14, 14, 13, 13, 13, 13, 13, 13, 4, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2021-12-14 22:41:05,245 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:05,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-12-14 22:41:05,436 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting partsErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:41:05,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:05,436 INFO L85 PathProgramCache]: Analyzing trace with hash -442552651, now seen corresponding path program 3 times [2021-12-14 22:41:05,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:05,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202477444] [2021-12-14 22:41:05,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:05,437 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:41:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:41:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 22:41:05,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 22:41:05,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 22:41:05,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2021-12-14 22:41:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:41:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-14 22:41:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:41:05,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 22:41:05,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-14 22:41:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:05,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:41:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-14 22:41:05,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:05,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:41:05,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-14 22:41:05,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 327 [2021-12-14 22:41:05,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:41:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 22:41:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 421 [2021-12-14 22:41:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 22:41:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:05,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 458 [2021-12-14 22:41:05,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:05,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 22:41:05,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 22:41:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 22:41:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:05,690 INFO L134 CoverageAnalysis]: Checked inductivity of 7578 backedges. 726 proven. 436 refuted. 0 times theorem prover too weak. 6416 trivial. 0 not checked. [2021-12-14 22:41:05,690 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:05,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202477444] [2021-12-14 22:41:05,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202477444] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:05,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225750069] [2021-12-14 22:41:05,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-14 22:41:05,690 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:05,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:05,699 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:05,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-12-14 22:41:05,829 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-12-14 22:41:05,829 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:05,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-14 22:41:05,836 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:06,530 INFO L134 CoverageAnalysis]: Checked inductivity of 7578 backedges. 3921 proven. 26 refuted. 0 times theorem prover too weak. 3631 trivial. 0 not checked. [2021-12-14 22:41:06,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:07,438 INFO L134 CoverageAnalysis]: Checked inductivity of 7578 backedges. 911 proven. 333 refuted. 0 times theorem prover too weak. 6334 trivial. 0 not checked. [2021-12-14 22:41:07,438 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225750069] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:07,438 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:07,438 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 10, 10] total 26 [2021-12-14 22:41:07,438 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503490076] [2021-12-14 22:41:07,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:07,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-14 22:41:07,439 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:07,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-14 22:41:07,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=579, Unknown=0, NotChecked=0, Total=650 [2021-12-14 22:41:07,440 INFO L87 Difference]: Start difference. First operand 2484 states and 3265 transitions. Second operand has 26 states, 26 states have (on average 4.923076923076923) internal successors, (128), 26 states have internal predecessors, (128), 10 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (21), 11 states have call predecessors, (21), 10 states have call successors, (21) [2021-12-14 22:41:08,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 22:41:08,438 INFO L93 Difference]: Finished difference Result 4530 states and 5997 transitions. [2021-12-14 22:41:08,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-12-14 22:41:08,438 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 4.923076923076923) internal successors, (128), 26 states have internal predecessors, (128), 10 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (21), 11 states have call predecessors, (21), 10 states have call successors, (21) Word has length 529 [2021-12-14 22:41:08,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 22:41:08,447 INFO L225 Difference]: With dead ends: 4530 [2021-12-14 22:41:08,447 INFO L226 Difference]: Without dead ends: 2455 [2021-12-14 22:41:08,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1209 GetRequests, 1147 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 768 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=609, Invalid=3423, Unknown=0, NotChecked=0, Total=4032 [2021-12-14 22:41:08,455 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 71 mSDsluCounter, 489 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 1298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-14 22:41:08,455 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 536 Invalid, 1298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-14 22:41:08,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2455 states. [2021-12-14 22:41:08,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2455 to 2409. [2021-12-14 22:41:08,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 1929 states have (on average 1.0813893208916536) internal successors, (2086), 1903 states have internal predecessors, (2086), 297 states have call successors, (297), 104 states have call predecessors, (297), 180 states have return successors, (781), 401 states have call predecessors, (781), 297 states have call successors, (781) [2021-12-14 22:41:08,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3164 transitions. [2021-12-14 22:41:08,551 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3164 transitions. Word has length 529 [2021-12-14 22:41:08,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 22:41:08,551 INFO L470 AbstractCegarLoop]: Abstraction has 2409 states and 3164 transitions. [2021-12-14 22:41:08,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.923076923076923) internal successors, (128), 26 states have internal predecessors, (128), 10 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (21), 11 states have call predecessors, (21), 10 states have call successors, (21) [2021-12-14 22:41:08,552 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3164 transitions. [2021-12-14 22:41:08,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 475 [2021-12-14 22:41:08,554 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 22:41:08,555 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 47, 47, 47, 46, 46, 1, 1, 1, 1, 1, 1] [2021-12-14 22:41:08,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Forceful destruction successful, exit code 0 [2021-12-14 22:41:08,775 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:08,775 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [partsErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, partsErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-14 22:41:08,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 22:41:08,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1091853156, now seen corresponding path program 5 times [2021-12-14 22:41:08,776 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 22:41:08,776 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891421848] [2021-12-14 22:41:08,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 22:41:08,776 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 22:41:08,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 22:41:10,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2021-12-14 22:41:10,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-14 22:41:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 22:41:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 22:41:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2021-12-14 22:41:10,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-12-14 22:41:10,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2021-12-14 22:41:10,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-14 22:41:10,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2021-12-14 22:41:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 22:41:10,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2021-12-14 22:41:10,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 22:41:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2021-12-14 22:41:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 22:41:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-14 22:41:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2021-12-14 22:41:10,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-14 22:41:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-14 22:41:10,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-14 22:41:10,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-14 22:41:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2021-12-14 22:41:10,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2021-12-14 22:41:10,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2021-12-14 22:41:10,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2021-12-14 22:41:10,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 22:41:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-12-14 22:41:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 276 [2021-12-14 22:41:10,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-14 22:41:10,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-14 22:41:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 306 [2021-12-14 22:41:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2021-12-14 22:41:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2021-12-14 22:41:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-14 22:41:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 346 [2021-12-14 22:41:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2021-12-14 22:41:10,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 366 [2021-12-14 22:41:10,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2021-12-14 22:41:10,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 386 [2021-12-14 22:41:10,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2021-12-14 22:41:10,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 406 [2021-12-14 22:41:10,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 416 [2021-12-14 22:41:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 426 [2021-12-14 22:41:10,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 436 [2021-12-14 22:41:10,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 446 [2021-12-14 22:41:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2021-12-14 22:41:10,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 466 [2021-12-14 22:41:10,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 22:41:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 10764 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2021-12-14 22:41:10,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 22:41:10,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891421848] [2021-12-14 22:41:10,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891421848] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 22:41:10,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580968087] [2021-12-14 22:41:10,988 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-14 22:41:10,988 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 22:41:10,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 22:41:10,989 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-14 22:41:10,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-12-14 22:41:11,186 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-14 22:41:11,186 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-14 22:41:11,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 1192 conjuncts, 95 conjunts are in the unsatisfiable core [2021-12-14 22:41:11,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 22:41:11,780 INFO L134 CoverageAnalysis]: Checked inductivity of 10764 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2021-12-14 22:41:11,781 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 22:41:16,743 INFO L134 CoverageAnalysis]: Checked inductivity of 10764 backedges. 0 proven. 6440 refuted. 0 times theorem prover too weak. 4324 trivial. 0 not checked. [2021-12-14 22:41:16,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580968087] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 22:41:16,743 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 22:41:16,744 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95, 95] total 189 [2021-12-14 22:41:16,744 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51325939] [2021-12-14 22:41:16,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 22:41:16,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2021-12-14 22:41:16,745 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 22:41:16,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2021-12-14 22:41:16,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9119, Invalid=26791, Unknown=0, NotChecked=0, Total=35910 [2021-12-14 22:41:16,752 INFO L87 Difference]: Start difference. First operand 2409 states and 3164 transitions. Second operand has 190 states, 189 states have (on average 2.5238095238095237) internal successors, (477), 190 states have internal predecessors, (477), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94)