./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition03-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version ae007674 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Addition03-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-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 32bit --witnessprinter.graph.data.programhash 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ae00767 [2021-12-28 08:45:23,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 08:45:23,565 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 08:45:23,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 08:45:23,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 08:45:23,596 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 08:45:23,597 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 08:45:23,599 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 08:45:23,600 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 08:45:23,600 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 08:45:23,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 08:45:23,602 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 08:45:23,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 08:45:23,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 08:45:23,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 08:45:23,605 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 08:45:23,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 08:45:23,606 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 08:45:23,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 08:45:23,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 08:45:23,610 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 08:45:23,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 08:45:23,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 08:45:23,612 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 08:45:23,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 08:45:23,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 08:45:23,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 08:45:23,615 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 08:45:23,615 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 08:45:23,616 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 08:45:23,616 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 08:45:23,616 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 08:45:23,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 08:45:23,621 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 08:45:23,622 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 08:45:23,622 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 08:45:23,623 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 08:45:23,623 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 08:45:23,623 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 08:45:23,625 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 08:45:23,625 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 08:45:23,626 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-28 08:45:23,654 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 08:45:23,655 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 08:45:23,655 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 08:45:23,655 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 08:45:23,656 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 08:45:23,656 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 08:45:23,657 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 08:45:23,657 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 08:45:23,657 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 08:45:23,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 08:45:23,658 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-28 08:45:23,658 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-28 08:45:23,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 08:45:23,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-28 08:45:23,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 08:45:23,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 08:45:23,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 08:45:23,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 08:45:23,659 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-28 08:45:23,659 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-28 08:45:23,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 08:45:23,659 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 08:45:23,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 08:45:23,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 08:45:23,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 08:45:23,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 08:45:23,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:45:23,660 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 08:45:23,660 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 08:45:23,661 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 08:45:23,661 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 08:45:23,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 08:45:23,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 08:45:23,661 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b4726bd085117d6d28f7ec87f442bbec9d0d87c17bc39b8147695c8c5a6ec7b [2021-12-28 08:45:23,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 08:45:23,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 08:45:23,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 08:45:23,947 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 08:45:23,948 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 08:45:23,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition03-1.c [2021-12-28 08:45:23,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0879510a3/765b32b3af7b4bfa8367a6f31be80e18/FLAG1b746d507 [2021-12-28 08:45:24,332 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 08:45:24,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c [2021-12-28 08:45:24,340 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0879510a3/765b32b3af7b4bfa8367a6f31be80e18/FLAG1b746d507 [2021-12-28 08:45:24,349 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0879510a3/765b32b3af7b4bfa8367a6f31be80e18 [2021-12-28 08:45:24,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 08:45:24,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 08:45:24,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 08:45:24,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 08:45:24,357 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 08:45:24,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f98372 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24, skipping insertion in model container [2021-12-28 08:45:24,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 08:45:24,372 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 08:45:24,467 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2021-12-28 08:45:24,468 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:45:24,472 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 08:45:24,488 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition03-1.c[840,853] [2021-12-28 08:45:24,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 08:45:24,510 INFO L208 MainTranslator]: Completed translation [2021-12-28 08:45:24,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24 WrapperNode [2021-12-28 08:45:24,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 08:45:24,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 08:45:24,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 08:45:24,512 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 08:45:24,516 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,529 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-12-28 08:45:24,529 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 08:45:24,530 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 08:45:24,530 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 08:45:24,530 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 08:45:24,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,535 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,537 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,538 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,539 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 08:45:24,540 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 08:45:24,540 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 08:45:24,540 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 08:45:24,541 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (1/1) ... [2021-12-28 08:45:24,550 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 08:45:24,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:24,568 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-28 08:45:24,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-28 08:45:24,611 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 08:45:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 08:45:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 08:45:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 08:45:24,612 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-12-28 08:45:24,612 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-12-28 08:45:24,663 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 08:45:24,664 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 08:45:24,741 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 08:45:24,746 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 08:45:24,746 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 08:45:24,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:45:24 BoogieIcfgContainer [2021-12-28 08:45:24,747 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 08:45:24,748 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 08:45:24,748 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 08:45:24,753 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 08:45:24,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 08:45:24" (1/3) ... [2021-12-28 08:45:24,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c103f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:45:24, skipping insertion in model container [2021-12-28 08:45:24,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 08:45:24" (2/3) ... [2021-12-28 08:45:24,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14c103f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 08:45:24, skipping insertion in model container [2021-12-28 08:45:24,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 08:45:24" (3/3) ... [2021-12-28 08:45:24,755 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2021-12-28 08:45:24,759 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 08:45:24,759 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2021-12-28 08:45:24,806 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 08:45:24,812 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-28 08:45:24,813 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-12-28 08:45:24,824 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-28 08:45:24,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-28 08:45:24,831 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:24,832 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:24,833 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:24,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:24,837 INFO L85 PathProgramCache]: Analyzing trace with hash 1845786995, now seen corresponding path program 1 times [2021-12-28 08:45:24,842 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:24,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328299239] [2021-12-28 08:45:24,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:24,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:24,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:24,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:24,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:24,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328299239] [2021-12-28 08:45:24,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328299239] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:45:24,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:45:24,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:45:24,994 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836791260] [2021-12-28 08:45:24,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:45:24,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:45:24,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:25,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:45:25,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:45:25,036 INFO L87 Difference]: Start difference. First operand has 35 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 30 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:25,139 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2021-12-28 08:45:25,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:45:25,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-28 08:45:25,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:25,147 INFO L225 Difference]: With dead ends: 64 [2021-12-28 08:45:25,147 INFO L226 Difference]: Without dead ends: 45 [2021-12-28 08:45:25,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:45:25,154 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 50 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:25,155 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 108 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:45:25,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2021-12-28 08:45:25,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 35. [2021-12-28 08:45:25,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.565217391304348) internal successors, (36), 32 states have internal predecessors, (36), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 40 transitions. [2021-12-28 08:45:25,189 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 40 transitions. Word has length 7 [2021-12-28 08:45:25,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:25,190 INFO L470 AbstractCegarLoop]: Abstraction has 35 states and 40 transitions. [2021-12-28 08:45:25,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,190 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 40 transitions. [2021-12-28 08:45:25,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-28 08:45:25,190 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:25,191 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:25,191 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 08:45:25,192 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:25,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:25,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1384822053, now seen corresponding path program 1 times [2021-12-28 08:45:25,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:25,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708039988] [2021-12-28 08:45:25,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:25,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:25,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:25,260 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:25,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708039988] [2021-12-28 08:45:25,261 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708039988] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:45:25,261 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:45:25,261 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:45:25,261 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772482030] [2021-12-28 08:45:25,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:45:25,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:45:25,262 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:25,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:45:25,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:45:25,263 INFO L87 Difference]: Start difference. First operand 35 states and 40 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:25,318 INFO L93 Difference]: Finished difference Result 67 states and 77 transitions. [2021-12-28 08:45:25,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:45:25,318 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-28 08:45:25,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:25,321 INFO L225 Difference]: With dead ends: 67 [2021-12-28 08:45:25,322 INFO L226 Difference]: Without dead ends: 65 [2021-12-28 08:45:25,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:45:25,326 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 34 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:25,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 72 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:45:25,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2021-12-28 08:45:25,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 53. [2021-12-28 08:45:25,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 40 states have (on average 1.475) internal successors, (59), 48 states have internal predecessors, (59), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2021-12-28 08:45:25,343 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 8 [2021-12-28 08:45:25,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:25,344 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2021-12-28 08:45:25,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,344 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2021-12-28 08:45:25,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-28 08:45:25,345 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:25,347 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:25,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-28 08:45:25,347 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:25,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:25,348 INFO L85 PathProgramCache]: Analyzing trace with hash -20189259, now seen corresponding path program 1 times [2021-12-28 08:45:25,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:25,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614290040] [2021-12-28 08:45:25,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:25,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:25,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:25,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:25,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:25,396 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614290040] [2021-12-28 08:45:25,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614290040] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:45:25,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:45:25,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:45:25,397 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087433312] [2021-12-28 08:45:25,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:45:25,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:45:25,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:25,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:45:25,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:45:25,400 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:25,463 INFO L93 Difference]: Finished difference Result 64 states and 74 transitions. [2021-12-28 08:45:25,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:45:25,464 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-28 08:45:25,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:25,466 INFO L225 Difference]: With dead ends: 64 [2021-12-28 08:45:25,466 INFO L226 Difference]: Without dead ends: 62 [2021-12-28 08:45:25,467 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:45:25,468 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 37 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:25,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 49 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:45:25,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-28 08:45:25,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 52. [2021-12-28 08:45:25,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 40 states have (on average 1.4) internal successors, (56), 47 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 61 transitions. [2021-12-28 08:45:25,474 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 61 transitions. Word has length 9 [2021-12-28 08:45:25,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:25,474 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 61 transitions. [2021-12-28 08:45:25,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,475 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 61 transitions. [2021-12-28 08:45:25,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-28 08:45:25,475 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:25,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:25,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-28 08:45:25,475 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:25,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:25,476 INFO L85 PathProgramCache]: Analyzing trace with hash -625866969, now seen corresponding path program 1 times [2021-12-28 08:45:25,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:25,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580764760] [2021-12-28 08:45:25,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:25,477 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:25,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:25,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:25,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580764760] [2021-12-28 08:45:25,493 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580764760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:45:25,493 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:45:25,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-28 08:45:25,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303417592] [2021-12-28 08:45:25,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:45:25,494 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-28 08:45:25,494 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:25,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-28 08:45:25,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:45:25,495 INFO L87 Difference]: Start difference. First operand 52 states and 61 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:25,508 INFO L93 Difference]: Finished difference Result 52 states and 61 transitions. [2021-12-28 08:45:25,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-28 08:45:25,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-28 08:45:25,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:25,509 INFO L225 Difference]: With dead ends: 52 [2021-12-28 08:45:25,509 INFO L226 Difference]: Without dead ends: 51 [2021-12-28 08:45:25,511 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-28 08:45:25,517 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:25,518 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 30 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:45:25,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-12-28 08:45:25,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-12-28 08:45:25,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.35) internal successors, (54), 46 states have internal predecessors, (54), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 59 transitions. [2021-12-28 08:45:25,524 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 59 transitions. Word has length 10 [2021-12-28 08:45:25,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:25,524 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 59 transitions. [2021-12-28 08:45:25,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,525 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 59 transitions. [2021-12-28 08:45:25,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-28 08:45:25,525 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:25,525 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:25,525 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-28 08:45:25,525 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:25,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:25,526 INFO L85 PathProgramCache]: Analyzing trace with hash -1895634472, now seen corresponding path program 1 times [2021-12-28 08:45:25,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:25,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987472366] [2021-12-28 08:45:25,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:25,526 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:25,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:25,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:25,555 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:25,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987472366] [2021-12-28 08:45:25,555 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987472366] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:45:25,556 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:45:25,556 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:45:25,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625890572] [2021-12-28 08:45:25,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:45:25,557 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:45:25,557 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:25,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:45:25,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:45:25,557 INFO L87 Difference]: Start difference. First operand 51 states and 59 transitions. Second operand has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:25,602 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2021-12-28 08:45:25,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:45:25,603 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-28 08:45:25,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:25,608 INFO L225 Difference]: With dead ends: 63 [2021-12-28 08:45:25,609 INFO L226 Difference]: Without dead ends: 62 [2021-12-28 08:45:25,609 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-28 08:45:25,609 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 32 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:25,610 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 49 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:45:25,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-12-28 08:45:25,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 51. [2021-12-28 08:45:25,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 40 states have (on average 1.325) internal successors, (53), 46 states have internal predecessors, (53), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2021-12-28 08:45:25,614 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 11 [2021-12-28 08:45:25,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:25,614 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2021-12-28 08:45:25,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,614 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2021-12-28 08:45:25,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-28 08:45:25,615 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:25,615 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:25,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-28 08:45:25,615 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:25,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:25,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1032977456, now seen corresponding path program 1 times [2021-12-28 08:45:25,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:25,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163268664] [2021-12-28 08:45:25,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:25,616 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:25,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:25,652 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:25,653 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:25,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163268664] [2021-12-28 08:45:25,653 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163268664] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:25,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [300827383] [2021-12-28 08:45:25,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:25,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:25,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:25,655 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:25,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-28 08:45:25,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:25,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 08:45:25,684 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:25,739 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:25,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:25,816 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:25,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [300827383] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:25,817 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:25,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-28 08:45:25,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013799508] [2021-12-28 08:45:25,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:25,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 08:45:25,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:25,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 08:45:25,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:45:25,819 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:25,942 INFO L93 Difference]: Finished difference Result 162 states and 188 transitions. [2021-12-28 08:45:25,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-28 08:45:25,942 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-12-28 08:45:25,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:25,943 INFO L225 Difference]: With dead ends: 162 [2021-12-28 08:45:25,943 INFO L226 Difference]: Without dead ends: 160 [2021-12-28 08:45:25,944 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-12-28 08:45:25,945 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 216 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:25,945 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 125 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:45:25,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-28 08:45:25,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 120. [2021-12-28 08:45:25,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 101 states have (on average 1.297029702970297) internal successors, (131), 108 states have internal predecessors, (131), 13 states have call successors, (13), 11 states have call predecessors, (13), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 144 transitions. [2021-12-28 08:45:25,970 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 144 transitions. Word has length 15 [2021-12-28 08:45:25,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:25,971 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 144 transitions. [2021-12-28 08:45:25,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:25,971 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 144 transitions. [2021-12-28 08:45:25,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-28 08:45:25,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:25,972 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:26,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:26,187 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-12-28 08:45:26,188 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:26,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:26,188 INFO L85 PathProgramCache]: Analyzing trace with hash -2082106057, now seen corresponding path program 1 times [2021-12-28 08:45:26,188 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:26,188 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972035686] [2021-12-28 08:45:26,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:26,188 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:26,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:26,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:26,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:26,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972035686] [2021-12-28 08:45:26,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972035686] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:26,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [571326326] [2021-12-28 08:45:26,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:26,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:26,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:26,224 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:26,225 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-28 08:45:26,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:26,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 4 conjunts are in the unsatisfiable core [2021-12-28 08:45:26,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:26,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:26,296 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-28 08:45:26,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [571326326] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:45:26,296 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-28 08:45:26,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2021-12-28 08:45:26,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387378775] [2021-12-28 08:45:26,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:45:26,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:45:26,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:26,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:45:26,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-12-28 08:45:26,297 INFO L87 Difference]: Start difference. First operand 120 states and 144 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:26,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:26,338 INFO L93 Difference]: Finished difference Result 165 states and 196 transitions. [2021-12-28 08:45:26,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-28 08:45:26,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-28 08:45:26,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:26,341 INFO L225 Difference]: With dead ends: 165 [2021-12-28 08:45:26,341 INFO L226 Difference]: Without dead ends: 105 [2021-12-28 08:45:26,342 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:45:26,342 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:26,342 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 51 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:45:26,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2021-12-28 08:45:26,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 79. [2021-12-28 08:45:26,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 67 states have (on average 1.1940298507462686) internal successors, (80), 70 states have internal predecessors, (80), 8 states have call successors, (8), 8 states have call predecessors, (8), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:26,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 88 transitions. [2021-12-28 08:45:26,347 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 88 transitions. Word has length 17 [2021-12-28 08:45:26,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:26,348 INFO L470 AbstractCegarLoop]: Abstraction has 79 states and 88 transitions. [2021-12-28 08:45:26,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:26,348 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 88 transitions. [2021-12-28 08:45:26,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-12-28 08:45:26,348 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:26,349 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:26,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:26,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-12-28 08:45:26,563 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:26,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:26,564 INFO L85 PathProgramCache]: Analyzing trace with hash -120438652, now seen corresponding path program 1 times [2021-12-28 08:45:26,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:26,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382846304] [2021-12-28 08:45:26,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:26,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:26,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:26,610 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:26,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:26,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382846304] [2021-12-28 08:45:26,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382846304] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:26,611 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756718950] [2021-12-28 08:45:26,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:26,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:26,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:26,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:26,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-28 08:45:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:26,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-28 08:45:26,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:26,677 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:26,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:26,742 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:26,743 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756718950] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:26,743 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:26,743 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-28 08:45:26,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188084114] [2021-12-28 08:45:26,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:26,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-28 08:45:26,744 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:26,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-28 08:45:26,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-28 08:45:26,745 INFO L87 Difference]: Start difference. First operand 79 states and 88 transitions. Second operand has 12 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:26,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:26,875 INFO L93 Difference]: Finished difference Result 178 states and 198 transitions. [2021-12-28 08:45:26,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-28 08:45:26,875 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-12-28 08:45:26,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:26,876 INFO L225 Difference]: With dead ends: 178 [2021-12-28 08:45:26,876 INFO L226 Difference]: Without dead ends: 177 [2021-12-28 08:45:26,876 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-12-28 08:45:26,877 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 126 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:26,877 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 96 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:45:26,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-12-28 08:45:26,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 160. [2021-12-28 08:45:26,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 139 states have (on average 1.158273381294964) internal successors, (161), 142 states have internal predecessors, (161), 17 states have call successors, (17), 17 states have call predecessors, (17), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:26,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 178 transitions. [2021-12-28 08:45:26,888 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 178 transitions. Word has length 18 [2021-12-28 08:45:26,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:26,888 INFO L470 AbstractCegarLoop]: Abstraction has 160 states and 178 transitions. [2021-12-28 08:45:26,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 8 states have internal predecessors, (31), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:26,889 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 178 transitions. [2021-12-28 08:45:26,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-12-28 08:45:26,889 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:26,889 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-28 08:45:26,908 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:27,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:27,106 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash 40289813, now seen corresponding path program 1 times [2021-12-28 08:45:27,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:27,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628960050] [2021-12-28 08:45:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:27,107 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:27,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:27,136 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:27,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628960050] [2021-12-28 08:45:27,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628960050] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 08:45:27,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 08:45:27,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 08:45:27,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480613846] [2021-12-28 08:45:27,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 08:45:27,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-28 08:45:27,137 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:27,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-28 08:45:27,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-28 08:45:27,137 INFO L87 Difference]: Start difference. First operand 160 states and 178 transitions. Second operand has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:27,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:27,165 INFO L93 Difference]: Finished difference Result 161 states and 178 transitions. [2021-12-28 08:45:27,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-28 08:45:27,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-12-28 08:45:27,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:27,170 INFO L225 Difference]: With dead ends: 161 [2021-12-28 08:45:27,170 INFO L226 Difference]: Without dead ends: 80 [2021-12-28 08:45:27,170 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-28 08:45:27,172 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:27,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 42 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-28 08:45:27,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-12-28 08:45:27,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-12-28 08:45:27,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 69 states have (on average 1.0434782608695652) internal successors, (72), 70 states have internal predecessors, (72), 9 states have call successors, (9), 9 states have call predecessors, (9), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 81 transitions. [2021-12-28 08:45:27,178 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 81 transitions. Word has length 19 [2021-12-28 08:45:27,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:27,178 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 81 transitions. [2021-12-28 08:45:27,178 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.25) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:27,178 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 81 transitions. [2021-12-28 08:45:27,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-28 08:45:27,179 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:27,179 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2021-12-28 08:45:27,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-28 08:45:27,179 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:27,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:27,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1543096729, now seen corresponding path program 2 times [2021-12-28 08:45:27,180 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:27,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280643091] [2021-12-28 08:45:27,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:27,180 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:27,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:27,270 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:27,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280643091] [2021-12-28 08:45:27,270 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280643091] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:27,270 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462176525] [2021-12-28 08:45:27,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:45:27,270 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:27,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:27,271 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:27,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-28 08:45:27,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:45:27,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:27,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-28 08:45:27,315 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:27,388 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:27,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:27,562 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:27,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462176525] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:27,562 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:27,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-28 08:45:27,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513035696] [2021-12-28 08:45:27,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:27,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-28 08:45:27,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:27,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-28 08:45:27,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:45:27,564 INFO L87 Difference]: Start difference. First operand 80 states and 81 transitions. Second operand has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:27,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:27,731 INFO L93 Difference]: Finished difference Result 133 states and 139 transitions. [2021-12-28 08:45:27,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 08:45:27,732 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-12-28 08:45:27,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:27,732 INFO L225 Difference]: With dead ends: 133 [2021-12-28 08:45:27,733 INFO L226 Difference]: Without dead ends: 132 [2021-12-28 08:45:27,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2021-12-28 08:45:27,734 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 280 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:27,734 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [280 Valid, 130 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:45:27,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-12-28 08:45:27,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 128. [2021-12-28 08:45:27,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 111 states have (on average 1.027027027027027) internal successors, (114), 112 states have internal predecessors, (114), 15 states have call successors, (15), 15 states have call predecessors, (15), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:27,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 129 transitions. [2021-12-28 08:45:27,740 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 129 transitions. Word has length 39 [2021-12-28 08:45:27,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:27,741 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 129 transitions. [2021-12-28 08:45:27,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.1904761904761907) internal successors, (67), 14 states have internal predecessors, (67), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:27,741 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 129 transitions. [2021-12-28 08:45:27,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-12-28 08:45:27,742 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:27,742 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1] [2021-12-28 08:45:27,761 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:27,961 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:27,961 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:27,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:27,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1653811754, now seen corresponding path program 2 times [2021-12-28 08:45:27,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:27,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548482310] [2021-12-28 08:45:27,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:27,962 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:27,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:28,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:28,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548482310] [2021-12-28 08:45:28,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548482310] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:28,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284002134] [2021-12-28 08:45:28,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-28 08:45:28,095 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:28,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:28,096 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:28,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-28 08:45:28,123 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-28 08:45:28,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:28,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-28 08:45:28,126 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:28,199 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:28,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:28,358 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:28,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284002134] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:28,359 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:28,359 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-28 08:45:28,361 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127506001] [2021-12-28 08:45:28,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:28,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-28 08:45:28,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:28,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-28 08:45:28,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2021-12-28 08:45:28,362 INFO L87 Difference]: Start difference. First operand 128 states and 129 transitions. Second operand has 24 states, 21 states have (on average 3.761904761904762) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:28,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:28,519 INFO L93 Difference]: Finished difference Result 186 states and 192 transitions. [2021-12-28 08:45:28,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-28 08:45:28,519 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 3.761904761904762) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-12-28 08:45:28,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:28,521 INFO L225 Difference]: With dead ends: 186 [2021-12-28 08:45:28,521 INFO L226 Difference]: Without dead ends: 185 [2021-12-28 08:45:28,522 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2021-12-28 08:45:28,522 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 261 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:28,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [261 Valid, 151 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:45:28,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2021-12-28 08:45:28,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 182. [2021-12-28 08:45:28,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 159 states have (on average 1.0188679245283019) internal successors, (162), 160 states have internal predecessors, (162), 21 states have call successors, (21), 21 states have call predecessors, (21), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:28,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 183 transitions. [2021-12-28 08:45:28,533 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 183 transitions. Word has length 45 [2021-12-28 08:45:28,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:28,533 INFO L470 AbstractCegarLoop]: Abstraction has 182 states and 183 transitions. [2021-12-28 08:45:28,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 3.761904761904762) internal successors, (79), 14 states have internal predecessors, (79), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:28,533 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 183 transitions. [2021-12-28 08:45:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-12-28 08:45:28,538 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:28,538 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2021-12-28 08:45:28,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:28,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-28 08:45:28,754 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:28,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:28,754 INFO L85 PathProgramCache]: Analyzing trace with hash -2009773099, now seen corresponding path program 3 times [2021-12-28 08:45:28,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:28,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078204415] [2021-12-28 08:45:28,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:28,755 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:28,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:28,959 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:28,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:28,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078204415] [2021-12-28 08:45:28,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078204415] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:28,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1936163727] [2021-12-28 08:45:28,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:45:28,960 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:28,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:28,961 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:28,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-28 08:45:29,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-28 08:45:29,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:29,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-28 08:45:29,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:29,145 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:29,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:29,644 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:29,644 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1936163727] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:29,644 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:29,644 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-28 08:45:29,644 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497534760] [2021-12-28 08:45:29,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:29,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-28 08:45:29,645 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:29,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-28 08:45:29,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2021-12-28 08:45:29,646 INFO L87 Difference]: Start difference. First operand 182 states and 183 transitions. Second operand has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:30,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:30,070 INFO L93 Difference]: Finished difference Result 283 states and 295 transitions. [2021-12-28 08:45:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-28 08:45:30,071 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2021-12-28 08:45:30,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:30,072 INFO L225 Difference]: With dead ends: 283 [2021-12-28 08:45:30,072 INFO L226 Difference]: Without dead ends: 282 [2021-12-28 08:45:30,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2021-12-28 08:45:30,074 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 665 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 665 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:30,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [665 Valid, 215 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:45:30,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-12-28 08:45:30,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 278. [2021-12-28 08:45:30,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 278 states, 243 states have (on average 1.0123456790123457) internal successors, (246), 244 states have internal predecessors, (246), 33 states have call successors, (33), 33 states have call predecessors, (33), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:30,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 279 transitions. [2021-12-28 08:45:30,085 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 279 transitions. Word has length 87 [2021-12-28 08:45:30,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:30,086 INFO L470 AbstractCegarLoop]: Abstraction has 278 states and 279 transitions. [2021-12-28 08:45:30,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.3555555555555556) internal successors, (151), 26 states have internal predecessors, (151), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 279 transitions. [2021-12-28 08:45:30,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-12-28 08:45:30,087 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:30,087 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1] [2021-12-28 08:45:30,112 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:30,310 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:30,310 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:30,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:30,311 INFO L85 PathProgramCache]: Analyzing trace with hash -192044778, now seen corresponding path program 3 times [2021-12-28 08:45:30,311 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:30,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326846609] [2021-12-28 08:45:30,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:30,311 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:30,536 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:30,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:30,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326846609] [2021-12-28 08:45:30,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326846609] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:30,536 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607023028] [2021-12-28 08:45:30,537 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-28 08:45:30,537 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:30,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:30,538 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:30,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-28 08:45:30,586 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-28 08:45:30,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:30,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-28 08:45:30,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:30,732 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:30,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:31,304 INFO L134 CoverageAnalysis]: Checked inductivity of 465 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:31,305 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607023028] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:31,305 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:31,305 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-28 08:45:31,305 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702301495] [2021-12-28 08:45:31,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:31,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-28 08:45:31,306 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:31,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-28 08:45:31,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2021-12-28 08:45:31,307 INFO L87 Difference]: Start difference. First operand 278 states and 279 transitions. Second operand has 48 states, 45 states have (on average 3.888888888888889) internal successors, (175), 26 states have internal predecessors, (175), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:31,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:31,722 INFO L93 Difference]: Finished difference Result 390 states and 402 transitions. [2021-12-28 08:45:31,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-28 08:45:31,722 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 3.888888888888889) internal successors, (175), 26 states have internal predecessors, (175), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 99 [2021-12-28 08:45:31,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:31,723 INFO L225 Difference]: With dead ends: 390 [2021-12-28 08:45:31,724 INFO L226 Difference]: Without dead ends: 389 [2021-12-28 08:45:31,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 174 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2021-12-28 08:45:31,725 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 664 mSDsluCounter, 263 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:31,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [664 Valid, 277 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-28 08:45:31,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2021-12-28 08:45:31,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 386. [2021-12-28 08:45:31,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 339 states have (on average 1.008849557522124) internal successors, (342), 340 states have internal predecessors, (342), 45 states have call successors, (45), 45 states have call predecessors, (45), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:31,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 387 transitions. [2021-12-28 08:45:31,748 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 387 transitions. Word has length 99 [2021-12-28 08:45:31,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:31,749 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 387 transitions. [2021-12-28 08:45:31,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 3.888888888888889) internal successors, (175), 26 states have internal predecessors, (175), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:31,749 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 387 transitions. [2021-12-28 08:45:31,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2021-12-28 08:45:31,754 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:31,754 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2021-12-28 08:45:31,770 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:31,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:31,964 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:31,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:31,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1051592015, now seen corresponding path program 4 times [2021-12-28 08:45:31,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:31,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043254116] [2021-12-28 08:45:31,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:31,965 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:32,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:32,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:32,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043254116] [2021-12-28 08:45:32,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043254116] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:32,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077027720] [2021-12-28 08:45:32,666 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:45:32,666 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:32,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:32,667 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:32,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-28 08:45:32,723 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:45:32,724 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:32,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-28 08:45:32,729 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:33,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:33,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:34,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:34,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077027720] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:34,582 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:34,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-28 08:45:34,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516638891] [2021-12-28 08:45:34,583 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:34,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-28 08:45:34,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:34,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-28 08:45:34,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2021-12-28 08:45:34,586 INFO L87 Difference]: Start difference. First operand 386 states and 387 transitions. Second operand has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:35,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:35,908 INFO L93 Difference]: Finished difference Result 583 states and 607 transitions. [2021-12-28 08:45:35,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-28 08:45:35,909 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2021-12-28 08:45:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:35,911 INFO L225 Difference]: With dead ends: 583 [2021-12-28 08:45:35,911 INFO L226 Difference]: Without dead ends: 582 [2021-12-28 08:45:35,914 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 458 GetRequests, 318 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2021-12-28 08:45:35,915 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 1594 mSDsluCounter, 393 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1594 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:35,915 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1594 Valid, 407 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:45:35,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 582 states. [2021-12-28 08:45:35,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 582 to 578. [2021-12-28 08:45:35,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 578 states, 507 states have (on average 1.0059171597633136) internal successors, (510), 508 states have internal predecessors, (510), 69 states have call successors, (69), 69 states have call predecessors, (69), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:35,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 578 states and 579 transitions. [2021-12-28 08:45:35,951 INFO L78 Accepts]: Start accepts. Automaton has 578 states and 579 transitions. Word has length 183 [2021-12-28 08:45:35,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:35,951 INFO L470 AbstractCegarLoop]: Abstraction has 578 states and 579 transitions. [2021-12-28 08:45:35,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.4301075268817205) internal successors, (319), 50 states have internal predecessors, (319), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:35,951 INFO L276 IsEmpty]: Start isEmpty. Operand 578 states and 579 transitions. [2021-12-28 08:45:35,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-12-28 08:45:35,953 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:35,953 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1] [2021-12-28 08:45:35,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-12-28 08:45:36,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-28 08:45:36,168 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:36,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:36,168 INFO L85 PathProgramCache]: Analyzing trace with hash 82864022, now seen corresponding path program 4 times [2021-12-28 08:45:36,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:36,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402389903] [2021-12-28 08:45:36,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:36,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:36,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:36,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:36,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402389903] [2021-12-28 08:45:36,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402389903] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:36,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1306598117] [2021-12-28 08:45:36,877 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-28 08:45:36,877 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:36,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:36,879 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:36,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-28 08:45:36,955 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-28 08:45:36,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:36,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-28 08:45:36,961 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:37,333 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:38,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2211 backedges. 0 proven. 2211 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:38,989 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1306598117] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:38,989 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:38,990 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-28 08:45:38,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939721433] [2021-12-28 08:45:38,991 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:38,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-28 08:45:38,991 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:38,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-28 08:45:38,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2021-12-28 08:45:38,994 INFO L87 Difference]: Start difference. First operand 578 states and 579 transitions. Second operand has 96 states, 93 states have (on average 3.946236559139785) internal successors, (367), 50 states have internal predecessors, (367), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:40,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:40,463 INFO L93 Difference]: Finished difference Result 798 states and 822 transitions. [2021-12-28 08:45:40,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-28 08:45:40,464 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 3.946236559139785) internal successors, (367), 50 states have internal predecessors, (367), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2021-12-28 08:45:40,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:40,466 INFO L225 Difference]: With dead ends: 798 [2021-12-28 08:45:40,466 INFO L226 Difference]: Without dead ends: 797 [2021-12-28 08:45:40,470 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 506 GetRequests, 366 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2021-12-28 08:45:40,470 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 1357 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1357 SdHoareTripleChecker+Valid, 521 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:40,470 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1357 Valid, 521 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-28 08:45:40,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 797 states. [2021-12-28 08:45:40,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 797 to 794. [2021-12-28 08:45:40,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 699 states have (on average 1.0042918454935623) internal successors, (702), 700 states have internal predecessors, (702), 93 states have call successors, (93), 93 states have call predecessors, (93), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:40,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 795 transitions. [2021-12-28 08:45:40,498 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 795 transitions. Word has length 207 [2021-12-28 08:45:40,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:40,499 INFO L470 AbstractCegarLoop]: Abstraction has 794 states and 795 transitions. [2021-12-28 08:45:40,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 3.946236559139785) internal successors, (367), 50 states have internal predecessors, (367), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:40,499 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 795 transitions. [2021-12-28 08:45:40,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-12-28 08:45:40,506 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:40,507 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2021-12-28 08:45:40,524 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-28 08:45:40,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-28 08:45:40,720 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:40,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:40,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1806002281, now seen corresponding path program 5 times [2021-12-28 08:45:40,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:40,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566700360] [2021-12-28 08:45:40,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:40,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:42,960 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:42,960 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:42,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566700360] [2021-12-28 08:45:42,961 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566700360] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:42,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089673986] [2021-12-28 08:45:42,961 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:45:42,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:42,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:42,976 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:42,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-28 08:45:43,125 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-28 08:45:43,125 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:43,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-28 08:45:43,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:43,799 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:43,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:45:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:49,415 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089673986] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:45:49,415 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:45:49,415 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-28 08:45:49,415 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593675296] [2021-12-28 08:45:49,415 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:45:49,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-28 08:45:49,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:45:49,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-28 08:45:49,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2021-12-28 08:45:49,420 INFO L87 Difference]: Start difference. First operand 794 states and 795 transitions. Second operand has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:55,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:45:55,025 INFO L93 Difference]: Finished difference Result 1183 states and 1231 transitions. [2021-12-28 08:45:55,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-28 08:45:55,025 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2021-12-28 08:45:55,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:45:55,028 INFO L225 Difference]: With dead ends: 1183 [2021-12-28 08:45:55,028 INFO L226 Difference]: Without dead ends: 1182 [2021-12-28 08:45:55,032 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 938 GetRequests, 654 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2021-12-28 08:45:55,032 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 3094 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 681 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3094 SdHoareTripleChecker+Valid, 797 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 08:45:55,033 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3094 Valid, 797 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 681 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 08:45:55,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1182 states. [2021-12-28 08:45:55,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1182 to 1178. [2021-12-28 08:45:55,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1178 states, 1035 states have (on average 1.0028985507246377) internal successors, (1038), 1036 states have internal predecessors, (1038), 141 states have call successors, (141), 141 states have call predecessors, (141), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:55,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1178 states to 1178 states and 1179 transitions. [2021-12-28 08:45:55,072 INFO L78 Accepts]: Start accepts. Automaton has 1178 states and 1179 transitions. Word has length 375 [2021-12-28 08:45:55,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:45:55,073 INFO L470 AbstractCegarLoop]: Abstraction has 1178 states and 1179 transitions. [2021-12-28 08:45:55,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.4656084656084656) internal successors, (655), 98 states have internal predecessors, (655), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:45:55,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1178 states and 1179 transitions. [2021-12-28 08:45:55,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 424 [2021-12-28 08:45:55,079 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:45:55,080 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 47, 47, 46, 46, 46, 46, 1, 1, 1, 1] [2021-12-28 08:45:55,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2021-12-28 08:45:55,300 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-12-28 08:45:55,300 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:45:55,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:45:55,300 INFO L85 PathProgramCache]: Analyzing trace with hash 1533719702, now seen corresponding path program 5 times [2021-12-28 08:45:55,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:45:55,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919991618] [2021-12-28 08:45:55,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:45:55,301 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:45:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:45:57,613 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:57,614 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:45:57,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919991618] [2021-12-28 08:45:57,614 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919991618] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:45:57,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301704301] [2021-12-28 08:45:57,614 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-28 08:45:57,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:45:57,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:45:57,615 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:45:57,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-28 08:45:57,779 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-28 08:45:57,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:45:57,784 INFO L263 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-28 08:45:57,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:45:58,419 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:45:58,420 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-28 08:46:04,240 INFO L134 CoverageAnalysis]: Checked inductivity of 9591 backedges. 0 proven. 9591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:46:04,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301704301] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-28 08:46:04,241 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-28 08:46:04,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-28 08:46:04,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029246330] [2021-12-28 08:46:04,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-28 08:46:04,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-28 08:46:04,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 08:46:04,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-28 08:46:04,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2021-12-28 08:46:04,246 INFO L87 Difference]: Start difference. First operand 1178 states and 1179 transitions. Second operand has 192 states, 189 states have (on average 3.9735449735449735) internal successors, (751), 98 states have internal predecessors, (751), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:46:10,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 08:46:10,564 INFO L93 Difference]: Finished difference Result 1614 states and 1662 transitions. [2021-12-28 08:46:10,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-28 08:46:10,564 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 3.9735449735449735) internal successors, (751), 98 states have internal predecessors, (751), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 423 [2021-12-28 08:46:10,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 08:46:10,569 INFO L225 Difference]: With dead ends: 1614 [2021-12-28 08:46:10,569 INFO L226 Difference]: Without dead ends: 1613 [2021-12-28 08:46:10,572 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1034 GetRequests, 750 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2021-12-28 08:46:10,573 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 3651 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 689 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3651 SdHoareTripleChecker+Valid, 1015 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 689 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-28 08:46:10,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3651 Valid, 1015 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 689 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-28 08:46:10,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2021-12-28 08:46:10,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1610. [2021-12-28 08:46:10,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1419 states have (on average 1.0021141649048626) internal successors, (1422), 1420 states have internal predecessors, (1422), 189 states have call successors, (189), 189 states have call predecessors, (189), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:46:10,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 1611 transitions. [2021-12-28 08:46:10,624 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 1611 transitions. Word has length 423 [2021-12-28 08:46:10,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 08:46:10,625 INFO L470 AbstractCegarLoop]: Abstraction has 1610 states and 1611 transitions. [2021-12-28 08:46:10,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 3.9735449735449735) internal successors, (751), 98 states have internal predecessors, (751), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-28 08:46:10,625 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 1611 transitions. [2021-12-28 08:46:10,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 760 [2021-12-28 08:46:10,631 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 08:46:10,631 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2021-12-28 08:46:10,648 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-28 08:46:10,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-12-28 08:46:10,835 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 5 more)] === [2021-12-28 08:46:10,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 08:46:10,836 INFO L85 PathProgramCache]: Analyzing trace with hash -910916647, now seen corresponding path program 6 times [2021-12-28 08:46:10,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 08:46:10,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213504078] [2021-12-28 08:46:10,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 08:46:10,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 08:46:11,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 08:46:19,002 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:46:19,002 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 08:46:19,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213504078] [2021-12-28 08:46:19,002 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213504078] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-28 08:46:19,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127587532] [2021-12-28 08:46:19,003 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-28 08:46:19,003 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-28 08:46:19,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 08:46:19,004 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-28 08:46:19,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-28 08:46:19,397 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-28 08:46:19,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-28 08:46:19,409 INFO L263 TraceCheckSpWp]: Trace formula consists of 1546 conjuncts, 192 conjunts are in the unsatisfiable core [2021-12-28 08:46:19,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-28 08:46:20,538 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-28 08:46:20,539 INFO L328 TraceCheckSpWp]: Computing backward predicates...