./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/MenloPark.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/MenloPark.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 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:22:02,643 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:22:02,646 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:22:02,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:22:02,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:22:02,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:22:02,672 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:22:02,674 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:22:02,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:22:02,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:22:02,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:22:02,679 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:22:02,679 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:22:02,680 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:22:02,681 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:22:02,683 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:22:02,683 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:22:02,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:22:02,686 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:22:02,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:22:02,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:22:02,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:22:02,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:22:02,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:22:02,695 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:22:02,696 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:22:02,696 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:22:02,697 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:22:02,697 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:22:02,698 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:22:02,700 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:22:02,701 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:22:02,701 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:22:02,702 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:22:02,706 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:22:02,707 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:22:02,707 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:22:02,708 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:22:02,708 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:22:02,709 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:22:02,710 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:22:02,711 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:22:02,741 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:22:02,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:22:02,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:22:02,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:22:02,743 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:22:02,743 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:22:02,743 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:22:02,744 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:22:02,744 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:22:02,744 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:22:02,744 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:22:02,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:22:02,745 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:22:02,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:22:02,745 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:22:02,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:22:02,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:22:02,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:22:02,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:22:02,747 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:22:02,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:22:02,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:22:02,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:22:02,748 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:22:02,748 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:22:02,748 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:22:02,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:22:02,749 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:22:02,749 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 7c87c9e4b733dad657e6ff9e27a5e9b26a2c3764 [2020-10-20 06:22:02,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:22:03,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:22:03,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:22:03,006 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:22:03,008 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:22:03,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/MenloPark.c [2020-10-20 06:22:03,072 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e350e806/c641377773444a6aa0c43d08b5b19ae9/FLAG9b10955dc [2020-10-20 06:22:03,511 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:22:03,512 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/MenloPark.c [2020-10-20 06:22:03,517 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e350e806/c641377773444a6aa0c43d08b5b19ae9/FLAG9b10955dc [2020-10-20 06:22:03,934 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3e350e806/c641377773444a6aa0c43d08b5b19ae9 [2020-10-20 06:22:03,937 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:22:03,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:22:03,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:22:03,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:22:03,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:22:03,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:22:03" (1/1) ... [2020-10-20 06:22:03,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577edb5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:03, skipping insertion in model container [2020-10-20 06:22:03,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:22:03" (1/1) ... [2020-10-20 06:22:03,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:22:03,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:22:04,242 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:22:04,246 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:22:04,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:22:04,273 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:22:04,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04 WrapperNode [2020-10-20 06:22:04,274 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:22:04,275 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:22:04,275 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:22:04,275 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:22:04,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... [2020-10-20 06:22:04,285 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... [2020-10-20 06:22:04,304 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:22:04,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:22:04,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:22:04,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:22:04,314 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... [2020-10-20 06:22:04,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... [2020-10-20 06:22:04,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... [2020-10-20 06:22:04,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... [2020-10-20 06:22:04,318 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... [2020-10-20 06:22:04,322 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... [2020-10-20 06:22:04,323 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... [2020-10-20 06:22:04,325 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:22:04,326 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:22:04,326 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:22:04,326 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:22:04,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:22:04,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:22:04,404 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:22:04,578 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:22:04,579 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:22:04,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:22:04 BoogieIcfgContainer [2020-10-20 06:22:04,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:22:04,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:22:04,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:22:04,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:22:04,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:22:03" (1/3) ... [2020-10-20 06:22:04,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321e260e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:22:04, skipping insertion in model container [2020-10-20 06:22:04,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:22:04" (2/3) ... [2020-10-20 06:22:04,593 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321e260e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:22:04, skipping insertion in model container [2020-10-20 06:22:04,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:22:04" (3/3) ... [2020-10-20 06:22:04,595 INFO L111 eAbstractionObserver]: Analyzing ICFG MenloPark.c [2020-10-20 06:22:04,609 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:22:04,617 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-10-20 06:22:04,633 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-20 06:22:04,667 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:22:04,668 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:22:04,668 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:22:04,668 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:22:04,669 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:22:04,669 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:22:04,669 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:22:04,670 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:22:04,692 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-10-20 06:22:04,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-10-20 06:22:04,699 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:04,700 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-10-20 06:22:04,701 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:04,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:04,709 INFO L82 PathProgramCache]: Analyzing trace with hash 31073, now seen corresponding path program 1 times [2020-10-20 06:22:04,720 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:04,720 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822388583] [2020-10-20 06:22:04,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:04,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:04,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:04,867 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822388583] [2020-10-20 06:22:04,867 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:22:04,868 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:22:04,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201781682] [2020-10-20 06:22:04,874 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:22:04,875 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:04,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:22:04,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:04,888 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 3 states. [2020-10-20 06:22:04,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:04,956 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2020-10-20 06:22:04,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:22:04,958 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-10-20 06:22:04,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:04,969 INFO L225 Difference]: With dead ends: 30 [2020-10-20 06:22:04,969 INFO L226 Difference]: Without dead ends: 17 [2020-10-20 06:22:04,973 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-10-20 06:22:05,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-10-20 06:22:05,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-10-20 06:22:05,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-10-20 06:22:05,026 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 3 [2020-10-20 06:22:05,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:05,027 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-10-20 06:22:05,027 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:22:05,027 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-10-20 06:22:05,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-20 06:22:05,028 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:05,028 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-20 06:22:05,029 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 06:22:05,030 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:05,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:05,031 INFO L82 PathProgramCache]: Analyzing trace with hash 963307, now seen corresponding path program 1 times [2020-10-20 06:22:05,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:05,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545213239] [2020-10-20 06:22:05,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:05,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:05,064 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545213239] [2020-10-20 06:22:05,064 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:22:05,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 06:22:05,065 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365446713] [2020-10-20 06:22:05,067 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:22:05,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:05,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:22:05,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:22:05,068 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 4 states. [2020-10-20 06:22:05,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:05,133 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-10-20 06:22:05,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:22:05,134 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-10-20 06:22:05,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:05,135 INFO L225 Difference]: With dead ends: 22 [2020-10-20 06:22:05,135 INFO L226 Difference]: Without dead ends: 21 [2020-10-20 06:22:05,137 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:22:05,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-20 06:22:05,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2020-10-20 06:22:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-10-20 06:22:05,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-10-20 06:22:05,142 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 4 [2020-10-20 06:22:05,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:05,143 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-10-20 06:22:05,143 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:22:05,143 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-10-20 06:22:05,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 06:22:05,144 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:05,144 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 06:22:05,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 06:22:05,145 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:05,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:05,146 INFO L82 PathProgramCache]: Analyzing trace with hash 29862563, now seen corresponding path program 1 times [2020-10-20 06:22:05,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:05,146 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89319334] [2020-10-20 06:22:05,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:05,173 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89319334] [2020-10-20 06:22:05,173 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:22:05,173 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:22:05,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192391436] [2020-10-20 06:22:05,174 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:22:05,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:05,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:22:05,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:05,175 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 3 states. [2020-10-20 06:22:05,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:05,213 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-10-20 06:22:05,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:22:05,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 06:22:05,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:05,215 INFO L225 Difference]: With dead ends: 20 [2020-10-20 06:22:05,215 INFO L226 Difference]: Without dead ends: 19 [2020-10-20 06:22:05,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:05,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-20 06:22:05,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2020-10-20 06:22:05,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-20 06:22:05,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-10-20 06:22:05,221 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 5 [2020-10-20 06:22:05,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:05,221 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-10-20 06:22:05,227 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:22:05,227 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-10-20 06:22:05,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-20 06:22:05,228 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:05,228 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-20 06:22:05,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 06:22:05,229 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:05,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:05,230 INFO L82 PathProgramCache]: Analyzing trace with hash 925739501, now seen corresponding path program 1 times [2020-10-20 06:22:05,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:05,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224008437] [2020-10-20 06:22:05,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:05,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:05,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224008437] [2020-10-20 06:22:05,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:22:05,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:22:05,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362140308] [2020-10-20 06:22:05,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:22:05,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:05,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:22:05,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:05,257 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2020-10-20 06:22:05,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:05,297 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2020-10-20 06:22:05,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:22:05,298 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-20 06:22:05,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:05,299 INFO L225 Difference]: With dead ends: 20 [2020-10-20 06:22:05,299 INFO L226 Difference]: Without dead ends: 19 [2020-10-20 06:22:05,300 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:05,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-20 06:22:05,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-10-20 06:22:05,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-10-20 06:22:05,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-10-20 06:22:05,305 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 6 [2020-10-20 06:22:05,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:05,306 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-10-20 06:22:05,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:22:05,306 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-10-20 06:22:05,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 06:22:05,307 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:05,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:22:05,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 06:22:05,308 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:05,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:05,308 INFO L82 PathProgramCache]: Analyzing trace with hash -1366846491, now seen corresponding path program 1 times [2020-10-20 06:22:05,308 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:05,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119285596] [2020-10-20 06:22:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:05,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:05,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119285596] [2020-10-20 06:22:05,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:22:05,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:22:05,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918702779] [2020-10-20 06:22:05,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:22:05,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:05,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:22:05,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:05,339 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2020-10-20 06:22:05,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:05,366 INFO L93 Difference]: Finished difference Result 22 states and 23 transitions. [2020-10-20 06:22:05,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:22:05,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 06:22:05,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:05,367 INFO L225 Difference]: With dead ends: 22 [2020-10-20 06:22:05,368 INFO L226 Difference]: Without dead ends: 21 [2020-10-20 06:22:05,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:05,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-20 06:22:05,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2020-10-20 06:22:05,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-10-20 06:22:05,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2020-10-20 06:22:05,374 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 7 [2020-10-20 06:22:05,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:05,374 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2020-10-20 06:22:05,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:22:05,375 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2020-10-20 06:22:05,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 06:22:05,375 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:05,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:22:05,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 06:22:05,376 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:05,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:05,377 INFO L82 PathProgramCache]: Analyzing trace with hash 577431791, now seen corresponding path program 1 times [2020-10-20 06:22:05,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:05,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988051343] [2020-10-20 06:22:05,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:05,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:05,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:05,402 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988051343] [2020-10-20 06:22:05,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 06:22:05,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 06:22:05,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449179372] [2020-10-20 06:22:05,403 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 06:22:05,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:05,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 06:22:05,404 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:05,404 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand 3 states. [2020-10-20 06:22:05,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:05,426 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2020-10-20 06:22:05,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:22:05,427 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 06:22:05,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:05,428 INFO L225 Difference]: With dead ends: 22 [2020-10-20 06:22:05,428 INFO L226 Difference]: Without dead ends: 21 [2020-10-20 06:22:05,428 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 06:22:05,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-10-20 06:22:05,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-10-20 06:22:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-10-20 06:22:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2020-10-20 06:22:05,434 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 8 [2020-10-20 06:22:05,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:05,434 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2020-10-20 06:22:05,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 06:22:05,435 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-10-20 06:22:05,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 06:22:05,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:05,435 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:22:05,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-20 06:22:05,436 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:05,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:05,437 INFO L82 PathProgramCache]: Analyzing trace with hash 861171249, now seen corresponding path program 1 times [2020-10-20 06:22:05,437 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:05,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246310445] [2020-10-20 06:22:05,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:05,513 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:05,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246310445] [2020-10-20 06:22:05,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572402349] [2020-10-20 06:22:05,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:05,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 06:22:05,558 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:22:05,713 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:05,714 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:22:05,714 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 6 [2020-10-20 06:22:05,714 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670236034] [2020-10-20 06:22:05,715 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 06:22:05,715 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:05,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 06:22:05,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:22:05,716 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 8 states. [2020-10-20 06:22:05,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:05,860 INFO L93 Difference]: Finished difference Result 30 states and 30 transitions. [2020-10-20 06:22:05,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:22:05,861 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-20 06:22:05,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:05,861 INFO L225 Difference]: With dead ends: 30 [2020-10-20 06:22:05,862 INFO L226 Difference]: Without dead ends: 29 [2020-10-20 06:22:05,863 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:22:05,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-10-20 06:22:05,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-10-20 06:22:05,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 06:22:05,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-10-20 06:22:05,871 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 10 [2020-10-20 06:22:05,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:05,871 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-10-20 06:22:05,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 06:22:05,871 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-10-20 06:22:05,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 06:22:05,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:05,872 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 06:22:06,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-10-20 06:22:06,082 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:06,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:06,083 INFO L82 PathProgramCache]: Analyzing trace with hash 926504987, now seen corresponding path program 1 times [2020-10-20 06:22:06,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:06,084 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691177100] [2020-10-20 06:22:06,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:06,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:06,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:06,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691177100] [2020-10-20 06:22:06,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [735860587] [2020-10-20 06:22:06,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:06,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:06,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 5 conjunts are in the unsatisfiable core [2020-10-20 06:22:06,153 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:22:06,191 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:06,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:22:06,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2020-10-20 06:22:06,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084474682] [2020-10-20 06:22:06,192 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:22:06,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:06,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:22:06,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:22:06,193 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 7 states. [2020-10-20 06:22:06,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:06,273 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-10-20 06:22:06,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 06:22:06,273 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-10-20 06:22:06,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:06,274 INFO L225 Difference]: With dead ends: 29 [2020-10-20 06:22:06,274 INFO L226 Difference]: Without dead ends: 28 [2020-10-20 06:22:06,275 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:22:06,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-20 06:22:06,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2020-10-20 06:22:06,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2020-10-20 06:22:06,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2020-10-20 06:22:06,279 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 11 [2020-10-20 06:22:06,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:06,279 INFO L481 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2020-10-20 06:22:06,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:22:06,280 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2020-10-20 06:22:06,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 06:22:06,281 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:06,281 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2020-10-20 06:22:06,492 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:06,493 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:06,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:06,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1343116429, now seen corresponding path program 1 times [2020-10-20 06:22:06,493 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:06,493 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78909956] [2020-10-20 06:22:06,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:06,528 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:06,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78909956] [2020-10-20 06:22:06,529 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718934592] [2020-10-20 06:22:06,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-10-20 06:22:06,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:06,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:22:06,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:06,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:22:06,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-20 06:22:06,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808548515] [2020-10-20 06:22:06,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:22:06,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:06,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:22:06,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:22:06,571 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 5 states. [2020-10-20 06:22:06,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:06,636 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-10-20 06:22:06,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:22:06,636 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-20 06:22:06,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:06,637 INFO L225 Difference]: With dead ends: 24 [2020-10-20 06:22:06,637 INFO L226 Difference]: Without dead ends: 23 [2020-10-20 06:22:06,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:22:06,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-20 06:22:06,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-20 06:22:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-20 06:22:06,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-10-20 06:22:06,641 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 12 [2020-10-20 06:22:06,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:06,641 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-10-20 06:22:06,642 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:22:06,642 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-10-20 06:22:06,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-20 06:22:06,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:06,642 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2020-10-20 06:22:06,852 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:06,853 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:06,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:06,854 INFO L82 PathProgramCache]: Analyzing trace with hash 1313063709, now seen corresponding path program 1 times [2020-10-20 06:22:06,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:06,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928910371] [2020-10-20 06:22:06,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:06,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:06,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928910371] [2020-10-20 06:22:06,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770687078] [2020-10-20 06:22:06,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:06,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 4 conjunts are in the unsatisfiable core [2020-10-20 06:22:06,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:22:06,951 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:06,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:22:06,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2020-10-20 06:22:06,952 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597114412] [2020-10-20 06:22:06,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 06:22:06,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:06,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 06:22:06,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:22:06,953 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 5 states. [2020-10-20 06:22:07,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:07,041 INFO L93 Difference]: Finished difference Result 35 states and 35 transitions. [2020-10-20 06:22:07,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-20 06:22:07,041 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-20 06:22:07,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:07,042 INFO L225 Difference]: With dead ends: 35 [2020-10-20 06:22:07,042 INFO L226 Difference]: Without dead ends: 34 [2020-10-20 06:22:07,043 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-20 06:22:07,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-20 06:22:07,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 30. [2020-10-20 06:22:07,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-10-20 06:22:07,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2020-10-20 06:22:07,048 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 13 [2020-10-20 06:22:07,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:07,048 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2020-10-20 06:22:07,048 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 06:22:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2020-10-20 06:22:07,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 06:22:07,049 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:07,049 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1] [2020-10-20 06:22:07,250 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:07,250 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:07,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:07,251 INFO L82 PathProgramCache]: Analyzing trace with hash 2050269365, now seen corresponding path program 1 times [2020-10-20 06:22:07,251 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:07,252 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926834439] [2020-10-20 06:22:07,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:07,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:07,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:07,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926834439] [2020-10-20 06:22:07,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [17408433] [2020-10-20 06:22:07,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-10-20 06:22:07,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:07,323 INFO L263 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 3 conjunts are in the unsatisfiable core [2020-10-20 06:22:07,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:07,336 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:07,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:22:07,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2] total 2 [2020-10-20 06:22:07,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172373630] [2020-10-20 06:22:07,338 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 06:22:07,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:07,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 06:22:07,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 06:22:07,339 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand 4 states. [2020-10-20 06:22:07,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:07,364 INFO L93 Difference]: Finished difference Result 30 states and 34 transitions. [2020-10-20 06:22:07,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 06:22:07,365 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-20 06:22:07,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:07,366 INFO L225 Difference]: With dead ends: 30 [2020-10-20 06:22:07,366 INFO L226 Difference]: Without dead ends: 28 [2020-10-20 06:22:07,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-20 06:22:07,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-10-20 06:22:07,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-10-20 06:22:07,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-10-20 06:22:07,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2020-10-20 06:22:07,371 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 14 [2020-10-20 06:22:07,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:07,372 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2020-10-20 06:22:07,372 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 06:22:07,372 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2020-10-20 06:22:07,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-20 06:22:07,373 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:07,373 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 1, 1] [2020-10-20 06:22:07,583 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-10-20 06:22:07,584 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:07,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:07,585 INFO L82 PathProgramCache]: Analyzing trace with hash 844787553, now seen corresponding path program 2 times [2020-10-20 06:22:07,585 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:07,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840322606] [2020-10-20 06:22:07,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:07,644 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:07,644 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840322606] [2020-10-20 06:22:07,645 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [977155600] [2020-10-20 06:22:07,645 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:07,675 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 06:22:07,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:22:07,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-20 06:22:07,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:22:07,828 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:07,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:22:07,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 11 [2020-10-20 06:22:07,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586072471] [2020-10-20 06:22:07,830 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 06:22:07,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:07,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 06:22:07,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-20 06:22:07,830 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 13 states. [2020-10-20 06:22:08,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:08,098 INFO L93 Difference]: Finished difference Result 53 states and 58 transitions. [2020-10-20 06:22:08,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 06:22:08,098 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 17 [2020-10-20 06:22:08,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:08,099 INFO L225 Difference]: With dead ends: 53 [2020-10-20 06:22:08,099 INFO L226 Difference]: Without dead ends: 52 [2020-10-20 06:22:08,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2020-10-20 06:22:08,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2020-10-20 06:22:08,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 48. [2020-10-20 06:22:08,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-10-20 06:22:08,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 53 transitions. [2020-10-20 06:22:08,106 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 53 transitions. Word has length 17 [2020-10-20 06:22:08,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:08,106 INFO L481 AbstractCegarLoop]: Abstraction has 48 states and 53 transitions. [2020-10-20 06:22:08,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 06:22:08,107 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 53 transitions. [2020-10-20 06:22:08,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 06:22:08,107 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:08,107 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1] [2020-10-20 06:22:08,310 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:08,311 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:08,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:08,312 INFO L82 PathProgramCache]: Analyzing trace with hash 418610411, now seen corresponding path program 2 times [2020-10-20 06:22:08,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:08,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266959091] [2020-10-20 06:22:08,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:08,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:08,353 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:22:08,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266959091] [2020-10-20 06:22:08,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [264332486] [2020-10-20 06:22:08,354 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:08,376 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 06:22:08,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:22:08,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:22:08,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:22:08,403 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-20 06:22:08,404 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:22:08,404 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-20 06:22:08,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925448194] [2020-10-20 06:22:08,404 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 06:22:08,405 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:08,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 06:22:08,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 06:22:08,405 INFO L87 Difference]: Start difference. First operand 48 states and 53 transitions. Second operand 7 states. [2020-10-20 06:22:08,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:08,465 INFO L93 Difference]: Finished difference Result 48 states and 53 transitions. [2020-10-20 06:22:08,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:22:08,468 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 18 [2020-10-20 06:22:08,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:08,469 INFO L225 Difference]: With dead ends: 48 [2020-10-20 06:22:08,469 INFO L226 Difference]: Without dead ends: 47 [2020-10-20 06:22:08,469 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-20 06:22:08,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-10-20 06:22:08,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2020-10-20 06:22:08,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-10-20 06:22:08,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 49 transitions. [2020-10-20 06:22:08,475 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 49 transitions. Word has length 18 [2020-10-20 06:22:08,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:08,475 INFO L481 AbstractCegarLoop]: Abstraction has 47 states and 49 transitions. [2020-10-20 06:22:08,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 06:22:08,475 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 49 transitions. [2020-10-20 06:22:08,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-10-20 06:22:08,476 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:08,476 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1] [2020-10-20 06:22:08,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:08,689 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:08,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:08,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1442319379, now seen corresponding path program 2 times [2020-10-20 06:22:08,690 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:08,690 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66027456] [2020-10-20 06:22:08,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:08,748 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-20 06:22:08,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66027456] [2020-10-20 06:22:08,748 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1681767404] [2020-10-20 06:22:08,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:08,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-10-20 06:22:08,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:22:08,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-20 06:22:08,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:22:08,817 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:08,818 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:22:08,818 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4 [2020-10-20 06:22:08,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94510334] [2020-10-20 06:22:08,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 06:22:08,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:08,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 06:22:08,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-20 06:22:08,823 INFO L87 Difference]: Start difference. First operand 47 states and 49 transitions. Second operand 6 states. [2020-10-20 06:22:08,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:08,869 INFO L93 Difference]: Finished difference Result 47 states and 49 transitions. [2020-10-20 06:22:08,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 06:22:08,870 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2020-10-20 06:22:08,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:08,871 INFO L225 Difference]: With dead ends: 47 [2020-10-20 06:22:08,871 INFO L226 Difference]: Without dead ends: 46 [2020-10-20 06:22:08,872 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-10-20 06:22:08,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-10-20 06:22:08,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 39. [2020-10-20 06:22:08,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-10-20 06:22:08,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 39 transitions. [2020-10-20 06:22:08,877 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 39 transitions. Word has length 20 [2020-10-20 06:22:08,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:08,878 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 39 transitions. [2020-10-20 06:22:08,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 06:22:08,878 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 39 transitions. [2020-10-20 06:22:08,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-10-20 06:22:08,879 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 06:22:08,879 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 1, 1] [2020-10-20 06:22:09,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-10-20 06:22:09,092 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-10-20 06:22:09,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 06:22:09,093 INFO L82 PathProgramCache]: Analyzing trace with hash 747995697, now seen corresponding path program 3 times [2020-10-20 06:22:09,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 06:22:09,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070493326] [2020-10-20 06:22:09,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 06:22:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 06:22:09,343 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 06:22:09,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070493326] [2020-10-20 06:22:09,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1986293940] [2020-10-20 06:22:09,344 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 06:22:09,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2020-10-20 06:22:09,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-10-20 06:22:09,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 12 conjunts are in the unsatisfiable core [2020-10-20 06:22:09,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 06:22:09,612 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 11 proven. 58 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-20 06:22:09,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 06:22:09,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 7] total 20 [2020-10-20 06:22:09,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067731007] [2020-10-20 06:22:09,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-10-20 06:22:09,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 06:22:09,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-10-20 06:22:09,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=416, Unknown=0, NotChecked=0, Total=462 [2020-10-20 06:22:09,615 INFO L87 Difference]: Start difference. First operand 39 states and 39 transitions. Second operand 22 states. [2020-10-20 06:22:10,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 06:22:10,599 INFO L93 Difference]: Finished difference Result 42 states and 42 transitions. [2020-10-20 06:22:10,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-10-20 06:22:10,600 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 38 [2020-10-20 06:22:10,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 06:22:10,601 INFO L225 Difference]: With dead ends: 42 [2020-10-20 06:22:10,601 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 06:22:10,603 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=249, Invalid=1083, Unknown=0, NotChecked=0, Total=1332 [2020-10-20 06:22:10,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 06:22:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 06:22:10,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 06:22:10,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 06:22:10,604 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2020-10-20 06:22:10,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 06:22:10,604 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 06:22:10,604 INFO L482 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-10-20 06:22:10,604 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 06:22:10,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:22:10,806 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-20 06:22:10,811 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 06:22:10,961 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 27 [2020-10-20 06:22:10,965 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-10-20 06:22:10,965 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 06:22:10,965 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-20 06:22:10,965 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-10-20 06:22:10,965 INFO L277 CegarLoopResult]: At program point L27(lines 16 28) the Hoare annotation is: true [2020-10-20 06:22:10,965 INFO L274 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-20 06:22:10,965 INFO L274 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-10-20 06:22:10,966 INFO L274 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-10-20 06:22:10,966 INFO L274 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-10-20 06:22:10,966 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2020-10-20 06:22:10,966 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-10-20 06:22:10,966 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 06:22:10,966 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2020-10-20 06:22:10,966 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 06:22:10,966 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-10-20 06:22:10,966 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-10-20 06:22:10,967 INFO L270 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (let ((.cse0 (<= 100 ULTIMATE.start_main_~y~0)) (.cse3 (+ ULTIMATE.start_main_~z~0 100)) (.cse1 (<= ULTIMATE.start_main_~z~0 1)) (.cse2 (<= ULTIMATE.start_main_~y~0 100))) (or (and .cse0 (<= ULTIMATE.start_main_~x~0 (+ ULTIMATE.start_main_~y~0 2147483547)) .cse1 (<= 1 ULTIMATE.start_main_~z~0) .cse2) (and (<= .cse3 ULTIMATE.start_main_~y~0) (<= 0 (+ ULTIMATE.start_main_~z~0 1)) (<= ULTIMATE.start_main_~y~0 99) (<= ULTIMATE.start_main_~x~0 2147483547)) (and .cse0 (<= ULTIMATE.start_main_~y~0 .cse3) (<= ULTIMATE.start_main_~x~0 2147483448) .cse1 .cse2))) [2020-10-20 06:22:10,967 INFO L274 CegarLoopResult]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2020-10-20 06:22:10,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:22:10 BoogieIcfgContainer [2020-10-20 06:22:10,986 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:22:10,987 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:22:10,987 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:22:10,987 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:22:10,988 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:22:04" (3/4) ... [2020-10-20 06:22:10,992 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:22:11,002 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-20 06:22:11,003 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 06:22:11,045 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:22:11,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:22:11,047 INFO L168 Benchmark]: Toolchain (without parser) took 7109.29 ms. Allocated memory was 36.2 MB in the beginning and 62.4 MB in the end (delta: 26.2 MB). Free memory was 10.8 MB in the beginning and 21.1 MB in the end (delta: -10.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:22:11,048 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 36.2 MB. Free memory is still 15.7 MB. There was no memory consumed. Max. memory is 14.3 GB. [2020-10-20 06:22:11,049 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.96 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 9.8 MB in the beginning and 29.0 MB in the end (delta: -19.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:22:11,049 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.27 ms. Allocated memory is still 44.6 MB. Free memory was 29.0 MB in the beginning and 27.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:22:11,050 INFO L168 Benchmark]: Boogie Preprocessor took 20.86 ms. Allocated memory is still 44.6 MB. Free memory was 27.5 MB in the beginning and 26.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 06:22:11,050 INFO L168 Benchmark]: RCFGBuilder took 255.05 ms. Allocated memory is still 44.6 MB. Free memory was 26.3 MB in the beginning and 16.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:22:11,051 INFO L168 Benchmark]: TraceAbstraction took 6404.82 ms. Allocated memory was 44.6 MB in the beginning and 62.4 MB in the end (delta: 17.8 MB). Free memory was 15.8 MB in the beginning and 24.0 MB in the end (delta: -8.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 14.3 GB. [2020-10-20 06:22:11,052 INFO L168 Benchmark]: Witness Printer took 58.61 ms. Allocated memory is still 62.4 MB. Free memory was 24.0 MB in the beginning and 21.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. [2020-10-20 06:22:11,055 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 36.2 MB. Free memory is still 15.7 MB. There was no memory consumed. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 330.96 ms. Allocated memory was 36.2 MB in the beginning and 44.6 MB in the end (delta: 8.4 MB). Free memory was 9.8 MB in the beginning and 29.0 MB in the end (delta: -19.1 MB). Peak memory consumption was 7.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 29.27 ms. Allocated memory is still 44.6 MB. Free memory was 29.0 MB in the beginning and 27.5 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 20.86 ms. Allocated memory is still 44.6 MB. Free memory was 27.5 MB in the beginning and 26.3 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 255.05 ms. Allocated memory is still 44.6 MB. Free memory was 26.3 MB in the beginning and 16.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 6404.82 ms. Allocated memory was 44.6 MB in the beginning and 62.4 MB in the end (delta: 17.8 MB). Free memory was 15.8 MB in the beginning and 24.0 MB in the end (delta: -8.2 MB). Peak memory consumption was 23.6 MB. Max. memory is 14.3 GB. * Witness Printer took 58.61 ms. Allocated memory is still 62.4 MB. Free memory was 24.0 MB in the beginning and 21.1 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((100 <= y && x <= y + 2147483547) && z <= 1) && 1 <= z) && y <= 100) || (((z + 100 <= y && 0 <= z + 1) && y <= 99) && x <= 2147483547)) || ((((100 <= y && y <= z + 100) && x <= 2147483448) && z <= 1) && y <= 100) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.1s, OverallIterations: 15, TraceHistogramMax: 6, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 92 SDtfs, 141 SDslu, 48 SDs, 0 SdLazy, 984 SolverSat, 79 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 232 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 15 MinimizatonAttempts, 32 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 9 NumberOfFragments, 55 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 279 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 339 NumberOfCodeBlocks, 339 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 36380 SizeOfPredicates, 8 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 24 InterpolantComputations, 6 PerfectInterpolantSequences, 31/282 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...