./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 20ed64ec 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/loop-zilu/benchmark23_conjunctive.i -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 becf68b1b41bf8f9c75117f82605e436bc8d5a41 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Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 11:30:30,508 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 11:30:30,510 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 11:30:30,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 11:30:30,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 11:30:30,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 11:30:30,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 11:30:30,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 11:30:30,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 11:30:30,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 11:30:30,556 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 11:30:30,565 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 11:30:30,565 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 11:30:30,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 11:30:30,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 11:30:30,571 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 11:30:30,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 11:30:30,576 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 11:30:30,578 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 11:30:30,580 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 11:30:30,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 11:30:30,586 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 11:30:30,587 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 11:30:30,588 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 11:30:30,593 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 11:30:30,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 11:30:30,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 11:30:30,597 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 11:30:30,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 11:30:30,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 11:30:30,599 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 11:30:30,600 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 11:30:30,601 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 11:30:30,602 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 11:30:30,603 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 11:30:30,603 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 11:30:30,604 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 11:30:30,604 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 11:30:30,604 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 11:30:30,606 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 11:30:30,606 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 11:30:30,607 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-27 11:30:30,639 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 11:30:30,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 11:30:30,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 11:30:30,641 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 11:30:30,643 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 11:30:30,643 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 11:30:30,643 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 11:30:30,644 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 11:30:30,644 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 11:30:30,644 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 11:30:30,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 11:30:30,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 11:30:30,645 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 11:30:30,645 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-27 11:30:30,646 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 11:30:30,646 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-27 11:30:30,646 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-27 11:30:30,646 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 11:30:30,646 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 11:30:30,646 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 11:30:30,647 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-27 11:30:30,647 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 11:30:30,647 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 11:30:30,647 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 11:30:30,648 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:30:30,648 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 11:30:30,648 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 11:30:30,648 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-27 11:30:30,648 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 11:30:30,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 11:30:30,649 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-27 11:30:30,649 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 11:30:30,649 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> becf68b1b41bf8f9c75117f82605e436bc8d5a41 [2021-08-27 11:30:30,960 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 11:30:30,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 11:30:30,988 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 11:30:30,989 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 11:30:30,990 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 11:30:30,991 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-08-27 11:30:31,053 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b90cb11aa/961ee9970ea04b6181bd97f3eaba8bbe/FLAGdb084122a [2021-08-27 11:30:31,487 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 11:30:31,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i [2021-08-27 11:30:31,495 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b90cb11aa/961ee9970ea04b6181bd97f3eaba8bbe/FLAGdb084122a [2021-08-27 11:30:31,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b90cb11aa/961ee9970ea04b6181bd97f3eaba8bbe [2021-08-27 11:30:31,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 11:30:31,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 11:30:31,911 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 11:30:31,911 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 11:30:31,914 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 11:30:31,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:30:31" (1/1) ... [2021-08-27 11:30:31,916 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4af8187c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:31, skipping insertion in model container [2021-08-27 11:30:31,916 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 11:30:31" (1/1) ... [2021-08-27 11:30:31,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 11:30:31,936 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 11:30:32,075 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-08-27 11:30:32,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:30:32,090 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 11:30:32,100 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark23_conjunctive.i[873,886] [2021-08-27 11:30:32,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 11:30:32,113 INFO L208 MainTranslator]: Completed translation [2021-08-27 11:30:32,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32 WrapperNode [2021-08-27 11:30:32,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 11:30:32,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 11:30:32,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 11:30:32,114 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 11:30:32,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,147 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 11:30:32,148 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 11:30:32,148 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 11:30:32,148 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 11:30:32,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,166 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,171 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,180 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 11:30:32,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 11:30:32,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 11:30:32,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 11:30:32,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (1/1) ... [2021-08-27 11:30:32,191 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 11:30:32,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:32,214 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) [2021-08-27 11:30:32,276 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 [2021-08-27 11:30:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 11:30:32,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 11:30:32,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 11:30:32,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 11:30:32,518 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 11:30:32,518 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-27 11:30:32,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:30:32 BoogieIcfgContainer [2021-08-27 11:30:32,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 11:30:32,521 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 11:30:32,521 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 11:30:32,524 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 11:30:32,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 11:30:31" (1/3) ... [2021-08-27 11:30:32,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11328250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:30:32, skipping insertion in model container [2021-08-27 11:30:32,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 11:30:32" (2/3) ... [2021-08-27 11:30:32,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11328250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 11:30:32, skipping insertion in model container [2021-08-27 11:30:32,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:30:32" (3/3) ... [2021-08-27 11:30:32,526 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark23_conjunctive.i [2021-08-27 11:30:32,530 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 11:30:32,531 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-27 11:30:32,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 11:30:32,591 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, mConcurrency=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 [2021-08-27 11:30:32,592 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-27 11:30:32,602 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:32,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-27 11:30:32,605 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:32,606 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-27 11:30:32,606 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:32,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:32,621 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-08-27 11:30:32,628 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:32,629 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836849762] [2021-08-27 11:30:32,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:32,630 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:32,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:32,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:32,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836849762] [2021-08-27 11:30:32,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836849762] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:30:32,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:30:32,851 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:30:32,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977525627] [2021-08-27 11:30:32,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:30:32,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:32,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:30:32,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:30:32,882 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.6153846153846154) internal successors, (21), 17 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:32,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:32,927 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2021-08-27 11:30:32,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:30:32,929 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-27 11:30:32,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:32,934 INFO L225 Difference]: With dead ends: 34 [2021-08-27 11:30:32,935 INFO L226 Difference]: Without dead ends: 15 [2021-08-27 11:30:32,938 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:30:32,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-08-27 11:30:32,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2021-08-27 11:30:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:32,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-08-27 11:30:32,967 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 5 [2021-08-27 11:30:32,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:32,968 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-08-27 11:30:32,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:32,968 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-08-27 11:30:32,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-27 11:30:32,969 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:32,969 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-27 11:30:32,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 11:30:32,970 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:32,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:32,972 INFO L82 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-08-27 11:30:32,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:32,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782584132] [2021-08-27 11:30:32,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:32,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:33,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:33,026 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:33,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782584132] [2021-08-27 11:30:33,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782584132] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:30:33,026 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:30:33,027 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 11:30:33,027 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853683656] [2021-08-27 11:30:33,028 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 11:30:33,028 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:33,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 11:30:33,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:30:33,029 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:33,036 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2021-08-27 11:30:33,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 11:30:33,037 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-08-27 11:30:33,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:33,038 INFO L225 Difference]: With dead ends: 14 [2021-08-27 11:30:33,038 INFO L226 Difference]: Without dead ends: 13 [2021-08-27 11:30:33,038 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 11:30:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-08-27 11:30:33,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-08-27 11:30:33,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.3) internal successors, (13), 12 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2021-08-27 11:30:33,041 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 6 [2021-08-27 11:30:33,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:33,041 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2021-08-27 11:30:33,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,042 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2021-08-27 11:30:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-27 11:30:33,042 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:33,042 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:30:33,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 11:30:33,043 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:33,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:33,044 INFO L82 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2021-08-27 11:30:33,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:33,044 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076860848] [2021-08-27 11:30:33,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:33,044 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:33,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:33,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:33,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:33,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076860848] [2021-08-27 11:30:33,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076860848] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:30:33,082 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:30:33,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:30:33,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191133719] [2021-08-27 11:30:33,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:30:33,084 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:33,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:30:33,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:30:33,085 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:33,123 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-08-27 11:30:33,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:30:33,124 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-27 11:30:33,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:33,126 INFO L225 Difference]: With dead ends: 18 [2021-08-27 11:30:33,126 INFO L226 Difference]: Without dead ends: 16 [2021-08-27 11:30:33,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:30:33,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-08-27 11:30:33,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-27 11:30:33,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-08-27 11:30:33,134 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2021-08-27 11:30:33,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:33,134 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-08-27 11:30:33,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,135 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-08-27 11:30:33,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-27 11:30:33,136 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:33,136 INFO L512 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 11:30:33,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-27 11:30:33,136 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:33,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:33,137 INFO L82 PathProgramCache]: Analyzing trace with hash 47508593, now seen corresponding path program 1 times [2021-08-27 11:30:33,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:33,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974915580] [2021-08-27 11:30:33,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:33,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:33,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:33,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:33,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974915580] [2021-08-27 11:30:33,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974915580] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:33,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612115826] [2021-08-27 11:30:33,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:33,202 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:33,202 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:33,209 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) [2021-08-27 11:30:33,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-27 11:30:33,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:33,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-27 11:30:33,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:33,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [612115826] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:33,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:33,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2021-08-27 11:30:33,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170905957] [2021-08-27 11:30:33,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:30:33,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:33,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:30:33,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:30:33,345 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:33,361 INFO L93 Difference]: Finished difference Result 20 states and 20 transitions. [2021-08-27 11:30:33,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:30:33,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-27 11:30:33,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:33,362 INFO L225 Difference]: With dead ends: 20 [2021-08-27 11:30:33,362 INFO L226 Difference]: Without dead ends: 19 [2021-08-27 11:30:33,363 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.5ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:30:33,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-08-27 11:30:33,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2021-08-27 11:30:33,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2021-08-27 11:30:33,368 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 10 [2021-08-27 11:30:33,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:33,369 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2021-08-27 11:30:33,369 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,369 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2021-08-27 11:30:33,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-27 11:30:33,370 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:33,370 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-08-27 11:30:33,397 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:33,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:33,587 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:33,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:33,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1588880781, now seen corresponding path program 1 times [2021-08-27 11:30:33,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:33,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387401313] [2021-08-27 11:30:33,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:33,588 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:33,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:33,629 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 11:30:33,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:33,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387401313] [2021-08-27 11:30:33,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387401313] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:30:33,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 11:30:33,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 11:30:33,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652935879] [2021-08-27 11:30:33,632 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-27 11:30:33,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:33,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-27 11:30:33,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-27 11:30:33,634 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:33,653 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2021-08-27 11:30:33,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-27 11:30:33,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-27 11:30:33,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:33,654 INFO L225 Difference]: With dead ends: 18 [2021-08-27 11:30:33,654 INFO L226 Difference]: Without dead ends: 17 [2021-08-27 11:30:33,655 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.8ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:30:33,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-08-27 11:30:33,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-08-27 11:30:33,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 15 states have (on average 1.1333333333333333) internal successors, (17), 16 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2021-08-27 11:30:33,662 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 12 [2021-08-27 11:30:33,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:33,662 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2021-08-27 11:30:33,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,663 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2021-08-27 11:30:33,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-27 11:30:33,663 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:33,663 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-08-27 11:30:33,663 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-27 11:30:33,664 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:33,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:33,666 INFO L82 PathProgramCache]: Analyzing trace with hash -2010663901, now seen corresponding path program 1 times [2021-08-27 11:30:33,666 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:33,670 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036699202] [2021-08-27 11:30:33,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:33,671 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:33,728 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:33,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:33,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036699202] [2021-08-27 11:30:33,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036699202] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:33,729 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152218173] [2021-08-27 11:30:33,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:33,730 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:33,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:33,731 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) [2021-08-27 11:30:33,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-27 11:30:33,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:33,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 11:30:33,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:33,873 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:33,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152218173] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:30:33,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 11:30:33,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-08-27 11:30:33,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710317744] [2021-08-27 11:30:33,874 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 11:30:33,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:33,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 11:30:33,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:30:33,876 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:33,913 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-08-27 11:30:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 11:30:33,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-27 11:30:33,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:33,915 INFO L225 Difference]: With dead ends: 17 [2021-08-27 11:30:33,916 INFO L226 Difference]: Without dead ends: 16 [2021-08-27 11:30:33,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 45.4ms TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-08-27 11:30:33,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-08-27 11:30:33,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-27 11:30:33,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-08-27 11:30:33,927 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 13 [2021-08-27 11:30:33,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:33,927 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-08-27 11:30:33,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:33,927 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-08-27 11:30:33,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-27 11:30:33,928 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:33,928 INFO L512 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1] [2021-08-27 11:30:33,948 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-27 11:30:34,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-08-27 11:30:34,137 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:34,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:34,138 INFO L82 PathProgramCache]: Analyzing trace with hash 487275813, now seen corresponding path program 2 times [2021-08-27 11:30:34,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:34,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935187645] [2021-08-27 11:30:34,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:34,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:34,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:34,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935187645] [2021-08-27 11:30:34,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935187645] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:34,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982398052] [2021-08-27 11:30:34,178 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:30:34,178 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:34,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:34,180 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) [2021-08-27 11:30:34,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-27 11:30:34,229 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:30:34,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:34,230 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 11:30:34,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:34,301 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:34,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982398052] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:34,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:34,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-08-27 11:30:34,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712970572] [2021-08-27 11:30:34,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 11:30:34,304 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:34,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 11:30:34,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:30:34,305 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:34,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:34,328 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2021-08-27 11:30:34,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 11:30:34,328 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-27 11:30:34,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:34,329 INFO L225 Difference]: With dead ends: 23 [2021-08-27 11:30:34,329 INFO L226 Difference]: Without dead ends: 22 [2021-08-27 11:30:34,330 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.9ms TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-08-27 11:30:34,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-08-27 11:30:34,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-08-27 11:30:34,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.05) internal successors, (21), 20 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:34,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2021-08-27 11:30:34,339 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 15 [2021-08-27 11:30:34,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:34,339 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2021-08-27 11:30:34,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:34,340 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2021-08-27 11:30:34,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 11:30:34,340 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:34,340 INFO L512 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 1, 1, 1, 1] [2021-08-27 11:30:34,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:34,545 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:34,545 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:34,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:34,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1418773263, now seen corresponding path program 3 times [2021-08-27 11:30:34,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:34,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185131471] [2021-08-27 11:30:34,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:34,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:34,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:34,590 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:34,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:34,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185131471] [2021-08-27 11:30:34,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185131471] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:34,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1788080403] [2021-08-27 11:30:34,605 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:30:34,605 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:34,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:34,609 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) [2021-08-27 11:30:34,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-27 11:30:34,668 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-08-27 11:30:34,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:34,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-27 11:30:34,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:34,744 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:34,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1788080403] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:34,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:34,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-08-27 11:30:34,745 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104841753] [2021-08-27 11:30:34,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-27 11:30:34,746 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:34,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-27 11:30:34,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 11:30:34,747 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:34,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:34,764 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2021-08-27 11:30:34,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-27 11:30:34,765 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-27 11:30:34,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:34,765 INFO L225 Difference]: With dead ends: 28 [2021-08-27 11:30:34,766 INFO L226 Difference]: Without dead ends: 27 [2021-08-27 11:30:34,766 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.6ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-27 11:30:34,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-08-27 11:30:34,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2021-08-27 11:30:34,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.04) internal successors, (26), 25 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:34,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 26 transitions. [2021-08-27 11:30:34,769 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 26 transitions. Word has length 20 [2021-08-27 11:30:34,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:34,769 INFO L470 AbstractCegarLoop]: Abstraction has 26 states and 26 transitions. [2021-08-27 11:30:34,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:34,769 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2021-08-27 11:30:34,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 11:30:34,770 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:34,770 INFO L512 BasicCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1] [2021-08-27 11:30:34,799 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:34,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:34,986 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:34,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:34,987 INFO L82 PathProgramCache]: Analyzing trace with hash 584006821, now seen corresponding path program 4 times [2021-08-27 11:30:34,987 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:34,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550169353] [2021-08-27 11:30:34,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:34,987 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:35,037 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:35,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:35,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550169353] [2021-08-27 11:30:35,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550169353] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:35,038 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1878321395] [2021-08-27 11:30:35,038 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:30:35,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:35,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:35,041 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) [2021-08-27 11:30:35,042 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-27 11:30:35,111 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:30:35,111 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:35,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 11:30:35,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:35,211 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:35,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1878321395] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:35,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:35,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-08-27 11:30:35,212 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218412872] [2021-08-27 11:30:35,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-27 11:30:35,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:35,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-27 11:30:35,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 11:30:35,214 INFO L87 Difference]: Start difference. First operand 26 states and 26 transitions. Second operand has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:35,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:35,242 INFO L93 Difference]: Finished difference Result 33 states and 33 transitions. [2021-08-27 11:30:35,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-27 11:30:35,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-27 11:30:35,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:35,243 INFO L225 Difference]: With dead ends: 33 [2021-08-27 11:30:35,243 INFO L226 Difference]: Without dead ends: 32 [2021-08-27 11:30:35,244 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.6ms TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2021-08-27 11:30:35,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2021-08-27 11:30:35,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 31. [2021-08-27 11:30:35,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:35,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 31 transitions. [2021-08-27 11:30:35,251 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 31 transitions. Word has length 25 [2021-08-27 11:30:35,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:35,251 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 31 transitions. [2021-08-27 11:30:35,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.166666666666667) internal successors, (25), 7 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:35,252 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 31 transitions. [2021-08-27 11:30:35,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-27 11:30:35,252 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:35,252 INFO L512 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 1, 1, 1, 1] [2021-08-27 11:30:35,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:35,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:35,453 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:35,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:35,454 INFO L82 PathProgramCache]: Analyzing trace with hash -977343119, now seen corresponding path program 5 times [2021-08-27 11:30:35,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:35,454 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602524813] [2021-08-27 11:30:35,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:35,455 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:35,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:35,538 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:35,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:35,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602524813] [2021-08-27 11:30:35,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602524813] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:35,539 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866321412] [2021-08-27 11:30:35,539 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:30:35,539 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:35,539 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:35,540 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) [2021-08-27 11:30:35,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-27 11:30:35,655 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-27 11:30:35,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:35,657 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 11:30:35,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:35,767 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:35,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866321412] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:35,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:35,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-08-27 11:30:35,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387168881] [2021-08-27 11:30:35,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-27 11:30:35,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:35,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-27 11:30:35,769 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:30:35,769 INFO L87 Difference]: Start difference. First operand 31 states and 31 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:35,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:35,795 INFO L93 Difference]: Finished difference Result 38 states and 38 transitions. [2021-08-27 11:30:35,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-27 11:30:35,796 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-08-27 11:30:35,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:35,796 INFO L225 Difference]: With dead ends: 38 [2021-08-27 11:30:35,797 INFO L226 Difference]: Without dead ends: 37 [2021-08-27 11:30:35,797 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.8ms TimeCoverageRelationStatistics Valid=28, Invalid=28, Unknown=0, NotChecked=0, Total=56 [2021-08-27 11:30:35,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-27 11:30:35,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 36. [2021-08-27 11:30:35,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.0285714285714285) internal successors, (36), 35 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:35,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 36 transitions. [2021-08-27 11:30:35,800 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 36 transitions. Word has length 30 [2021-08-27 11:30:35,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:35,801 INFO L470 AbstractCegarLoop]: Abstraction has 36 states and 36 transitions. [2021-08-27 11:30:35,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 8 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:35,801 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 36 transitions. [2021-08-27 11:30:35,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-08-27 11:30:35,802 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:35,802 INFO L512 BasicCegarLoop]: trace histogram [7, 6, 6, 6, 6, 1, 1, 1, 1] [2021-08-27 11:30:35,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:36,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:36,017 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:36,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:36,018 INFO L82 PathProgramCache]: Analyzing trace with hash 1362746405, now seen corresponding path program 6 times [2021-08-27 11:30:36,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:36,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76363684] [2021-08-27 11:30:36,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:36,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:36,103 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:36,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76363684] [2021-08-27 11:30:36,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76363684] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:36,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685947539] [2021-08-27 11:30:36,103 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:30:36,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:36,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:36,104 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) [2021-08-27 11:30:36,105 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-27 11:30:36,209 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-08-27 11:30:36,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:36,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-27 11:30:36,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:36,342 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 87 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:36,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685947539] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:36,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:36,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2021-08-27 11:30:36,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208525750] [2021-08-27 11:30:36,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-27 11:30:36,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:36,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-27 11:30:36,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 11:30:36,344 INFO L87 Difference]: Start difference. First operand 36 states and 36 transitions. Second operand has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:36,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:36,373 INFO L93 Difference]: Finished difference Result 43 states and 43 transitions. [2021-08-27 11:30:36,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-27 11:30:36,373 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-08-27 11:30:36,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:36,374 INFO L225 Difference]: With dead ends: 43 [2021-08-27 11:30:36,374 INFO L226 Difference]: Without dead ends: 42 [2021-08-27 11:30:36,374 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.8ms TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2021-08-27 11:30:36,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-08-27 11:30:36,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2021-08-27 11:30:36,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:36,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 41 transitions. [2021-08-27 11:30:36,378 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 41 transitions. Word has length 35 [2021-08-27 11:30:36,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:36,378 INFO L470 AbstractCegarLoop]: Abstraction has 41 states and 41 transitions. [2021-08-27 11:30:36,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.375) internal successors, (35), 9 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:36,379 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 41 transitions. [2021-08-27 11:30:36,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-08-27 11:30:36,379 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:36,379 INFO L512 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 1, 1, 1, 1] [2021-08-27 11:30:36,402 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-08-27 11:30:36,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:36,593 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:36,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:36,593 INFO L82 PathProgramCache]: Analyzing trace with hash 915144177, now seen corresponding path program 7 times [2021-08-27 11:30:36,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:36,593 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190001087] [2021-08-27 11:30:36,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:36,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:36,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:36,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190001087] [2021-08-27 11:30:36,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190001087] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:36,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1536693173] [2021-08-27 11:30:36,686 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:30:36,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:36,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:36,687 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) [2021-08-27 11:30:36,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-27 11:30:36,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:36,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-27 11:30:36,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:36,956 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 0 proven. 119 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:36,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1536693173] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:36,956 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:36,956 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2021-08-27 11:30:36,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085287350] [2021-08-27 11:30:36,957 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 11:30:36,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:36,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 11:30:36,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 11:30:36,958 INFO L87 Difference]: Start difference. First operand 41 states and 41 transitions. Second operand has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:36,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:36,989 INFO L93 Difference]: Finished difference Result 48 states and 48 transitions. [2021-08-27 11:30:36,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 11:30:36,997 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2021-08-27 11:30:36,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:36,998 INFO L225 Difference]: With dead ends: 48 [2021-08-27 11:30:36,998 INFO L226 Difference]: Without dead ends: 47 [2021-08-27 11:30:36,998 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 42.0ms TimeCoverageRelationStatistics Valid=45, Invalid=45, Unknown=0, NotChecked=0, Total=90 [2021-08-27 11:30:37,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-08-27 11:30:37,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 46. [2021-08-27 11:30:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.0222222222222221) internal successors, (46), 45 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:37,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 46 transitions. [2021-08-27 11:30:37,003 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 46 transitions. Word has length 40 [2021-08-27 11:30:37,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:37,004 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 46 transitions. [2021-08-27 11:30:37,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:37,004 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 46 transitions. [2021-08-27 11:30:37,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-08-27 11:30:37,005 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:37,005 INFO L512 BasicCegarLoop]: trace histogram [9, 8, 8, 8, 8, 1, 1, 1, 1] [2021-08-27 11:30:37,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:37,213 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,SelfDestructingSolverStorable11 [2021-08-27 11:30:37,214 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:37,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:37,214 INFO L82 PathProgramCache]: Analyzing trace with hash -2138891355, now seen corresponding path program 8 times [2021-08-27 11:30:37,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:37,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367771153] [2021-08-27 11:30:37,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:37,215 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:37,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:37,311 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:37,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:37,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367771153] [2021-08-27 11:30:37,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367771153] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:37,311 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1445830114] [2021-08-27 11:30:37,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:30:37,312 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:37,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:37,312 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) [2021-08-27 11:30:37,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-27 11:30:37,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:30:37,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:37,420 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-27 11:30:37,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:37,586 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:37,587 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1445830114] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:37,587 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:37,587 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 10 [2021-08-27 11:30:37,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184878223] [2021-08-27 11:30:37,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-27 11:30:37,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:37,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-27 11:30:37,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 11:30:37,588 INFO L87 Difference]: Start difference. First operand 46 states and 46 transitions. Second operand has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:37,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:37,620 INFO L93 Difference]: Finished difference Result 53 states and 53 transitions. [2021-08-27 11:30:37,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-27 11:30:37,621 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-08-27 11:30:37,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:37,621 INFO L225 Difference]: With dead ends: 53 [2021-08-27 11:30:37,621 INFO L226 Difference]: Without dead ends: 52 [2021-08-27 11:30:37,622 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 50.4ms TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2021-08-27 11:30:37,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-08-27 11:30:37,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2021-08-27 11:30:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.02) internal successors, (51), 50 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:37,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 51 transitions. [2021-08-27 11:30:37,625 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 51 transitions. Word has length 45 [2021-08-27 11:30:37,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:37,625 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 51 transitions. [2021-08-27 11:30:37,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 4.5) internal successors, (45), 11 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:37,626 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 51 transitions. [2021-08-27 11:30:37,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-08-27 11:30:37,626 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:37,626 INFO L512 BasicCegarLoop]: trace histogram [10, 9, 9, 9, 9, 1, 1, 1, 1] [2021-08-27 11:30:37,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-08-27 11:30:37,828 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,SelfDestructingSolverStorable12 [2021-08-27 11:30:37,829 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:37,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:37,829 INFO L82 PathProgramCache]: Analyzing trace with hash -2002882959, now seen corresponding path program 9 times [2021-08-27 11:30:37,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:37,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627247444] [2021-08-27 11:30:37,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:37,830 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:37,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:37,937 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:37,937 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:37,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627247444] [2021-08-27 11:30:37,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627247444] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:37,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392066586] [2021-08-27 11:30:37,938 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:30:37,938 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:37,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:37,939 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) [2021-08-27 11:30:37,940 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-27 11:30:38,071 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-08-27 11:30:38,071 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:38,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-27 11:30:38,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:38,251 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:38,252 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392066586] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:38,252 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:38,252 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 11 [2021-08-27 11:30:38,253 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222580283] [2021-08-27 11:30:38,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-27 11:30:38,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:38,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-27 11:30:38,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 11:30:38,255 INFO L87 Difference]: Start difference. First operand 51 states and 51 transitions. Second operand has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:38,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:38,297 INFO L93 Difference]: Finished difference Result 58 states and 58 transitions. [2021-08-27 11:30:38,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-27 11:30:38,298 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-08-27 11:30:38,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:38,299 INFO L225 Difference]: With dead ends: 58 [2021-08-27 11:30:38,300 INFO L226 Difference]: Without dead ends: 57 [2021-08-27 11:30:38,300 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.4ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-08-27 11:30:38,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-08-27 11:30:38,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2021-08-27 11:30:38,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.018181818181818) internal successors, (56), 55 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:38,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 56 transitions. [2021-08-27 11:30:38,313 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 56 transitions. Word has length 50 [2021-08-27 11:30:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:38,313 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 56 transitions. [2021-08-27 11:30:38,313 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.545454545454546) internal successors, (50), 12 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:38,313 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 56 transitions. [2021-08-27 11:30:38,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-27 11:30:38,315 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:38,315 INFO L512 BasicCegarLoop]: trace histogram [11, 10, 10, 10, 10, 1, 1, 1, 1] [2021-08-27 11:30:38,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:38,528 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,SelfDestructingSolverStorable13 [2021-08-27 11:30:38,529 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:38,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:38,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1562182875, now seen corresponding path program 10 times [2021-08-27 11:30:38,529 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:38,529 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217943460] [2021-08-27 11:30:38,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:38,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:38,646 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:38,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:38,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217943460] [2021-08-27 11:30:38,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217943460] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:38,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127118383] [2021-08-27 11:30:38,647 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:30:38,647 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:38,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:38,648 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) [2021-08-27 11:30:38,649 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-27 11:30:38,810 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:30:38,810 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:38,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-27 11:30:38,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:39,010 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 245 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:39,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127118383] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:39,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:39,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 12 [2021-08-27 11:30:39,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798936585] [2021-08-27 11:30:39,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-08-27 11:30:39,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:39,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-08-27 11:30:39,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-08-27 11:30:39,012 INFO L87 Difference]: Start difference. First operand 56 states and 56 transitions. Second operand has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:39,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:39,058 INFO L93 Difference]: Finished difference Result 63 states and 63 transitions. [2021-08-27 11:30:39,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-27 11:30:39,059 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-08-27 11:30:39,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:39,059 INFO L225 Difference]: With dead ends: 63 [2021-08-27 11:30:39,060 INFO L226 Difference]: Without dead ends: 62 [2021-08-27 11:30:39,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 70.6ms TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2021-08-27 11:30:39,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2021-08-27 11:30:39,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2021-08-27 11:30:39,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 60 states have (on average 1.0166666666666666) internal successors, (61), 60 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:39,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 61 transitions. [2021-08-27 11:30:39,067 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 61 transitions. Word has length 55 [2021-08-27 11:30:39,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:39,067 INFO L470 AbstractCegarLoop]: Abstraction has 61 states and 61 transitions. [2021-08-27 11:30:39,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.583333333333333) internal successors, (55), 13 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:39,067 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 61 transitions. [2021-08-27 11:30:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-08-27 11:30:39,072 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:39,072 INFO L512 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 1, 1, 1, 1] [2021-08-27 11:30:39,099 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:39,296 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,SelfDestructingSolverStorable14 [2021-08-27 11:30:39,297 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:39,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:39,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1824407281, now seen corresponding path program 11 times [2021-08-27 11:30:39,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:39,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390832142] [2021-08-27 11:30:39,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:39,297 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:39,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:39,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:39,421 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390832142] [2021-08-27 11:30:39,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390832142] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:39,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534557648] [2021-08-27 11:30:39,422 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:30:39,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:39,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:39,423 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) [2021-08-27 11:30:39,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-27 11:30:39,595 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2021-08-27 11:30:39,596 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:39,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-27 11:30:39,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:39,812 INFO L134 CoverageAnalysis]: Checked inductivity of 297 backedges. 0 proven. 297 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:39,812 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534557648] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:39,812 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:39,812 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 13 [2021-08-27 11:30:39,813 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423415321] [2021-08-27 11:30:39,813 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-08-27 11:30:39,813 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:39,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-08-27 11:30:39,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-08-27 11:30:39,814 INFO L87 Difference]: Start difference. First operand 61 states and 61 transitions. Second operand has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:39,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:39,856 INFO L93 Difference]: Finished difference Result 68 states and 68 transitions. [2021-08-27 11:30:39,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-27 11:30:39,857 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-08-27 11:30:39,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:39,857 INFO L225 Difference]: With dead ends: 68 [2021-08-27 11:30:39,858 INFO L226 Difference]: Without dead ends: 67 [2021-08-27 11:30:39,858 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 76.4ms TimeCoverageRelationStatistics Valid=91, Invalid=91, Unknown=0, NotChecked=0, Total=182 [2021-08-27 11:30:39,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2021-08-27 11:30:39,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 66. [2021-08-27 11:30:39,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.0153846153846153) internal successors, (66), 65 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:39,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 66 transitions. [2021-08-27 11:30:39,862 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 66 transitions. Word has length 60 [2021-08-27 11:30:39,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:39,862 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 66 transitions. [2021-08-27 11:30:39,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.615384615384615) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:39,863 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 66 transitions. [2021-08-27 11:30:39,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-08-27 11:30:39,863 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:39,863 INFO L512 BasicCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1] [2021-08-27 11:30:39,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:40,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-08-27 11:30:40,077 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:40,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:40,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1150384805, now seen corresponding path program 12 times [2021-08-27 11:30:40,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:40,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730950988] [2021-08-27 11:30:40,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:40,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:40,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:40,286 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:40,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:40,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730950988] [2021-08-27 11:30:40,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730950988] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:40,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [37514178] [2021-08-27 11:30:40,287 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:30:40,287 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:40,287 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:40,288 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:40,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-08-27 11:30:40,521 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2021-08-27 11:30:40,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:40,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-27 11:30:40,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:40,749 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:40,749 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [37514178] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:40,750 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:40,750 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 14 [2021-08-27 11:30:40,750 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628664399] [2021-08-27 11:30:40,750 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-08-27 11:30:40,750 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:40,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-08-27 11:30:40,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-08-27 11:30:40,751 INFO L87 Difference]: Start difference. First operand 66 states and 66 transitions. Second operand has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:40,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:40,790 INFO L93 Difference]: Finished difference Result 73 states and 73 transitions. [2021-08-27 11:30:40,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-08-27 11:30:40,791 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2021-08-27 11:30:40,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:40,792 INFO L225 Difference]: With dead ends: 73 [2021-08-27 11:30:40,792 INFO L226 Difference]: Without dead ends: 72 [2021-08-27 11:30:40,792 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 139.6ms TimeCoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2021-08-27 11:30:40,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2021-08-27 11:30:40,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 71. [2021-08-27 11:30:40,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:40,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 71 transitions. [2021-08-27 11:30:40,796 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 71 transitions. Word has length 65 [2021-08-27 11:30:40,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:40,796 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 71 transitions. [2021-08-27 11:30:40,796 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 4.642857142857143) internal successors, (65), 15 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:40,797 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 71 transitions. [2021-08-27 11:30:40,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2021-08-27 11:30:40,797 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:40,797 INFO L512 BasicCegarLoop]: trace histogram [14, 13, 13, 13, 13, 1, 1, 1, 1] [2021-08-27 11:30:40,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:41,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-08-27 11:30:41,017 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:41,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:41,017 INFO L82 PathProgramCache]: Analyzing trace with hash 968060785, now seen corresponding path program 13 times [2021-08-27 11:30:41,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:41,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899541487] [2021-08-27 11:30:41,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:41,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:41,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:41,173 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:41,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:41,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899541487] [2021-08-27 11:30:41,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899541487] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:41,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051438630] [2021-08-27 11:30:41,174 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:30:41,174 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:41,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:41,175 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:41,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-08-27 11:30:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:41,426 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 15 conjunts are in the unsatisfiable core [2021-08-27 11:30:41,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:41,664 INFO L134 CoverageAnalysis]: Checked inductivity of 416 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:41,665 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051438630] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:41,665 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:41,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2021-08-27 11:30:41,665 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890387732] [2021-08-27 11:30:41,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-08-27 11:30:41,666 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:41,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-08-27 11:30:41,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-08-27 11:30:41,667 INFO L87 Difference]: Start difference. First operand 71 states and 71 transitions. Second operand has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:41,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:41,712 INFO L93 Difference]: Finished difference Result 78 states and 78 transitions. [2021-08-27 11:30:41,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-27 11:30:41,712 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2021-08-27 11:30:41,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:41,713 INFO L225 Difference]: With dead ends: 78 [2021-08-27 11:30:41,713 INFO L226 Difference]: Without dead ends: 77 [2021-08-27 11:30:41,713 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 101.4ms TimeCoverageRelationStatistics Valid=120, Invalid=120, Unknown=0, NotChecked=0, Total=240 [2021-08-27 11:30:41,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2021-08-27 11:30:41,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 76. [2021-08-27 11:30:41,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.0133333333333334) internal successors, (76), 75 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:41,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 76 transitions. [2021-08-27 11:30:41,729 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 76 transitions. Word has length 70 [2021-08-27 11:30:41,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:41,730 INFO L470 AbstractCegarLoop]: Abstraction has 76 states and 76 transitions. [2021-08-27 11:30:41,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.666666666666667) internal successors, (70), 16 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:41,730 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 76 transitions. [2021-08-27 11:30:41,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-08-27 11:30:41,731 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:41,731 INFO L512 BasicCegarLoop]: trace histogram [15, 14, 14, 14, 14, 1, 1, 1, 1] [2021-08-27 11:30:41,759 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:41,954 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:41,954 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:41,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:41,955 INFO L82 PathProgramCache]: Analyzing trace with hash 197564965, now seen corresponding path program 14 times [2021-08-27 11:30:41,955 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:41,955 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938472214] [2021-08-27 11:30:41,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:41,955 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:41,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:42,156 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:42,156 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:42,156 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938472214] [2021-08-27 11:30:42,157 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938472214] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:42,157 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1804496181] [2021-08-27 11:30:42,157 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:30:42,157 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:42,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:42,161 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:42,177 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-08-27 11:30:42,419 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:30:42,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:42,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-27 11:30:42,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:42,663 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 0 proven. 483 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:42,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1804496181] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:42,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:42,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 16 [2021-08-27 11:30:42,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499819093] [2021-08-27 11:30:42,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-27 11:30:42,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:42,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-27 11:30:42,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-08-27 11:30:42,664 INFO L87 Difference]: Start difference. First operand 76 states and 76 transitions. Second operand has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:42,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:42,719 INFO L93 Difference]: Finished difference Result 83 states and 83 transitions. [2021-08-27 11:30:42,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-27 11:30:42,719 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2021-08-27 11:30:42,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:42,720 INFO L225 Difference]: With dead ends: 83 [2021-08-27 11:30:42,720 INFO L226 Difference]: Without dead ends: 82 [2021-08-27 11:30:42,720 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 119.9ms TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2021-08-27 11:30:42,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2021-08-27 11:30:42,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 81. [2021-08-27 11:30:42,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.0125) internal successors, (81), 80 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:42,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 81 transitions. [2021-08-27 11:30:42,723 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 81 transitions. Word has length 75 [2021-08-27 11:30:42,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:42,724 INFO L470 AbstractCegarLoop]: Abstraction has 81 states and 81 transitions. [2021-08-27 11:30:42,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:42,724 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 81 transitions. [2021-08-27 11:30:42,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-08-27 11:30:42,724 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:42,724 INFO L512 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 1, 1, 1, 1] [2021-08-27 11:30:42,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:42,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:42,948 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:42,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:42,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1816526833, now seen corresponding path program 15 times [2021-08-27 11:30:42,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:42,949 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902872744] [2021-08-27 11:30:42,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:42,949 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:43,128 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:43,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:43,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902872744] [2021-08-27 11:30:43,129 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902872744] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:43,129 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59706828] [2021-08-27 11:30:43,129 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:30:43,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:43,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:43,133 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:43,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-08-27 11:30:43,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2021-08-27 11:30:43,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:43,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-27 11:30:43,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:43,767 INFO L134 CoverageAnalysis]: Checked inductivity of 555 backedges. 0 proven. 555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:43,767 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [59706828] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:43,767 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:43,767 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 17 [2021-08-27 11:30:43,767 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260831860] [2021-08-27 11:30:43,768 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-08-27 11:30:43,768 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:43,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-08-27 11:30:43,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-08-27 11:30:43,768 INFO L87 Difference]: Start difference. First operand 81 states and 81 transitions. Second operand has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:43,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:43,811 INFO L93 Difference]: Finished difference Result 88 states and 88 transitions. [2021-08-27 11:30:43,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-08-27 11:30:43,811 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 80 [2021-08-27 11:30:43,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:43,812 INFO L225 Difference]: With dead ends: 88 [2021-08-27 11:30:43,812 INFO L226 Difference]: Without dead ends: 87 [2021-08-27 11:30:43,812 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 126.3ms TimeCoverageRelationStatistics Valid=153, Invalid=153, Unknown=0, NotChecked=0, Total=306 [2021-08-27 11:30:43,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2021-08-27 11:30:43,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 86. [2021-08-27 11:30:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.011764705882353) internal successors, (86), 85 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 86 transitions. [2021-08-27 11:30:43,815 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 86 transitions. Word has length 80 [2021-08-27 11:30:43,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:43,815 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 86 transitions. [2021-08-27 11:30:43,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.705882352941177) internal successors, (80), 18 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:43,815 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 86 transitions. [2021-08-27 11:30:43,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-08-27 11:30:43,816 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:43,816 INFO L512 BasicCegarLoop]: trace histogram [17, 16, 16, 16, 16, 1, 1, 1, 1] [2021-08-27 11:30:43,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:44,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:44,040 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:44,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:44,040 INFO L82 PathProgramCache]: Analyzing trace with hash 951736741, now seen corresponding path program 16 times [2021-08-27 11:30:44,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:44,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071858528] [2021-08-27 11:30:44,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:44,041 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:44,254 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:44,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:44,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071858528] [2021-08-27 11:30:44,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071858528] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:44,254 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1056398326] [2021-08-27 11:30:44,254 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:30:44,255 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:44,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:44,257 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:44,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-08-27 11:30:44,639 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:30:44,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:44,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-27 11:30:44,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 0 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:44,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1056398326] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:44,927 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:44,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18] total 18 [2021-08-27 11:30:44,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631534564] [2021-08-27 11:30:44,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-27 11:30:44,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:44,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-27 11:30:44,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-08-27 11:30:44,930 INFO L87 Difference]: Start difference. First operand 86 states and 86 transitions. Second operand has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:44,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:44,982 INFO L93 Difference]: Finished difference Result 93 states and 93 transitions. [2021-08-27 11:30:44,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-27 11:30:44,982 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2021-08-27 11:30:44,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:44,983 INFO L225 Difference]: With dead ends: 93 [2021-08-27 11:30:44,983 INFO L226 Difference]: Without dead ends: 92 [2021-08-27 11:30:44,984 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 152.6ms TimeCoverageRelationStatistics Valid=171, Invalid=171, Unknown=0, NotChecked=0, Total=342 [2021-08-27 11:30:44,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2021-08-27 11:30:44,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 91. [2021-08-27 11:30:44,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.011111111111111) internal successors, (91), 90 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:44,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 91 transitions. [2021-08-27 11:30:44,986 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 91 transitions. Word has length 85 [2021-08-27 11:30:44,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:44,987 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 91 transitions. [2021-08-27 11:30:44,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.722222222222222) internal successors, (85), 19 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:44,987 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 91 transitions. [2021-08-27 11:30:44,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-08-27 11:30:44,988 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:44,988 INFO L512 BasicCegarLoop]: trace histogram [18, 17, 17, 17, 17, 1, 1, 1, 1] [2021-08-27 11:30:45,023 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:45,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:45,202 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:45,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:45,202 INFO L82 PathProgramCache]: Analyzing trace with hash 658370673, now seen corresponding path program 17 times [2021-08-27 11:30:45,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:45,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300486982] [2021-08-27 11:30:45,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:45,203 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:45,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:45,418 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:45,418 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:45,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300486982] [2021-08-27 11:30:45,419 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300486982] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:45,419 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098152534] [2021-08-27 11:30:45,419 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:30:45,419 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:45,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:45,420 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:45,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-08-27 11:30:45,763 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s) [2021-08-27 11:30:45,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:45,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 19 conjunts are in the unsatisfiable core [2021-08-27 11:30:45,766 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:46,051 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 0 proven. 714 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:46,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098152534] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:46,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:46,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 19 [2021-08-27 11:30:46,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754082091] [2021-08-27 11:30:46,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-27 11:30:46,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:46,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-27 11:30:46,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-08-27 11:30:46,053 INFO L87 Difference]: Start difference. First operand 91 states and 91 transitions. Second operand has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:46,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:46,105 INFO L93 Difference]: Finished difference Result 98 states and 98 transitions. [2021-08-27 11:30:46,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-27 11:30:46,107 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2021-08-27 11:30:46,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:46,108 INFO L225 Difference]: With dead ends: 98 [2021-08-27 11:30:46,108 INFO L226 Difference]: Without dead ends: 97 [2021-08-27 11:30:46,108 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 151.9ms TimeCoverageRelationStatistics Valid=190, Invalid=190, Unknown=0, NotChecked=0, Total=380 [2021-08-27 11:30:46,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-08-27 11:30:46,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 96. [2021-08-27 11:30:46,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:46,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2021-08-27 11:30:46,111 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 90 [2021-08-27 11:30:46,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:46,112 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2021-08-27 11:30:46,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 4.7368421052631575) internal successors, (90), 20 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:46,112 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2021-08-27 11:30:46,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-08-27 11:30:46,113 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:46,113 INFO L512 BasicCegarLoop]: trace histogram [19, 18, 18, 18, 18, 1, 1, 1, 1] [2021-08-27 11:30:46,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:46,334 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:46,335 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:46,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:46,335 INFO L82 PathProgramCache]: Analyzing trace with hash 631552293, now seen corresponding path program 18 times [2021-08-27 11:30:46,335 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:46,335 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524246468] [2021-08-27 11:30:46,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:46,336 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:46,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:46,569 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:46,569 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:46,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524246468] [2021-08-27 11:30:46,569 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524246468] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:46,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1079887167] [2021-08-27 11:30:46,569 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:30:46,570 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:46,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:46,570 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:46,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-08-27 11:30:46,961 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-08-27 11:30:46,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:46,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-27 11:30:46,964 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:47,253 INFO L134 CoverageAnalysis]: Checked inductivity of 801 backedges. 0 proven. 801 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:47,253 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1079887167] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:47,253 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:47,254 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20] total 20 [2021-08-27 11:30:47,254 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655880750] [2021-08-27 11:30:47,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-27 11:30:47,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:47,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-27 11:30:47,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-08-27 11:30:47,255 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:47,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:47,302 INFO L93 Difference]: Finished difference Result 103 states and 103 transitions. [2021-08-27 11:30:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-27 11:30:47,303 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2021-08-27 11:30:47,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:47,303 INFO L225 Difference]: With dead ends: 103 [2021-08-27 11:30:47,304 INFO L226 Difference]: Without dead ends: 102 [2021-08-27 11:30:47,304 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 169.3ms TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2021-08-27 11:30:47,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2021-08-27 11:30:47,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 101. [2021-08-27 11:30:47,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 100 states have (on average 1.01) internal successors, (101), 100 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 101 transitions. [2021-08-27 11:30:47,308 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 101 transitions. Word has length 95 [2021-08-27 11:30:47,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:47,308 INFO L470 AbstractCegarLoop]: Abstraction has 101 states and 101 transitions. [2021-08-27 11:30:47,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 4.75) internal successors, (95), 21 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:47,309 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 101 transitions. [2021-08-27 11:30:47,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2021-08-27 11:30:47,309 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:47,309 INFO L512 BasicCegarLoop]: trace histogram [20, 19, 19, 19, 19, 1, 1, 1, 1] [2021-08-27 11:30:47,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:47,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:47,525 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:47,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:47,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1285340943, now seen corresponding path program 19 times [2021-08-27 11:30:47,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:47,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328565764] [2021-08-27 11:30:47,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:47,526 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:47,795 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:47,795 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:47,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328565764] [2021-08-27 11:30:47,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328565764] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:47,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525951986] [2021-08-27 11:30:47,796 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:30:47,796 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:47,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:47,801 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:47,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-08-27 11:30:48,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:48,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-27 11:30:48,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:48,584 INFO L134 CoverageAnalysis]: Checked inductivity of 893 backedges. 0 proven. 893 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:48,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525951986] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:48,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:48,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 21 [2021-08-27 11:30:48,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590102272] [2021-08-27 11:30:48,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-27 11:30:48,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:48,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-27 11:30:48,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-08-27 11:30:48,586 INFO L87 Difference]: Start difference. First operand 101 states and 101 transitions. Second operand has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:48,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:48,643 INFO L93 Difference]: Finished difference Result 108 states and 108 transitions. [2021-08-27 11:30:48,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-27 11:30:48,643 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2021-08-27 11:30:48,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:48,644 INFO L225 Difference]: With dead ends: 108 [2021-08-27 11:30:48,644 INFO L226 Difference]: Without dead ends: 107 [2021-08-27 11:30:48,644 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 206.0ms TimeCoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2021-08-27 11:30:48,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-08-27 11:30:48,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 106. [2021-08-27 11:30:48,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.0095238095238095) internal successors, (106), 105 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:48,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 106 transitions. [2021-08-27 11:30:48,647 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 106 transitions. Word has length 100 [2021-08-27 11:30:48,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:48,648 INFO L470 AbstractCegarLoop]: Abstraction has 106 states and 106 transitions. [2021-08-27 11:30:48,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 4.761904761904762) internal successors, (100), 22 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:48,648 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 106 transitions. [2021-08-27 11:30:48,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-08-27 11:30:48,649 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:48,649 INFO L512 BasicCegarLoop]: trace histogram [21, 20, 20, 20, 20, 1, 1, 1, 1] [2021-08-27 11:30:48,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:48,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-08-27 11:30:48,857 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:48,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:48,858 INFO L82 PathProgramCache]: Analyzing trace with hash -960644955, now seen corresponding path program 20 times [2021-08-27 11:30:48,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:48,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059922878] [2021-08-27 11:30:48,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:48,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:48,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:49,172 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:49,173 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:49,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059922878] [2021-08-27 11:30:49,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059922878] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:49,173 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916175357] [2021-08-27 11:30:49,173 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:30:49,173 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:49,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:49,221 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:49,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-08-27 11:30:49,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:30:49,725 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:49,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-27 11:30:49,727 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 990 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:50,039 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916175357] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:50,039 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:50,040 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 22 [2021-08-27 11:30:50,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046521891] [2021-08-27 11:30:50,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2021-08-27 11:30:50,040 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:50,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-08-27 11:30:50,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-08-27 11:30:50,041 INFO L87 Difference]: Start difference. First operand 106 states and 106 transitions. Second operand has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:50,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:50,114 INFO L93 Difference]: Finished difference Result 113 states and 113 transitions. [2021-08-27 11:30:50,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-08-27 11:30:50,114 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-08-27 11:30:50,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:50,115 INFO L225 Difference]: With dead ends: 113 [2021-08-27 11:30:50,115 INFO L226 Difference]: Without dead ends: 112 [2021-08-27 11:30:50,116 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 217.4ms TimeCoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2021-08-27 11:30:50,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2021-08-27 11:30:50,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 111. [2021-08-27 11:30:50,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.009090909090909) internal successors, (111), 110 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:50,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 111 transitions. [2021-08-27 11:30:50,120 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 111 transitions. Word has length 105 [2021-08-27 11:30:50,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:50,120 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 111 transitions. [2021-08-27 11:30:50,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 4.7727272727272725) internal successors, (105), 23 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:50,126 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 111 transitions. [2021-08-27 11:30:50,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2021-08-27 11:30:50,127 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:50,127 INFO L512 BasicCegarLoop]: trace histogram [22, 21, 21, 21, 21, 1, 1, 1, 1] [2021-08-27 11:30:50,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:50,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-08-27 11:30:50,352 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:50,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:50,352 INFO L82 PathProgramCache]: Analyzing trace with hash -8523407, now seen corresponding path program 21 times [2021-08-27 11:30:50,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:50,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997999901] [2021-08-27 11:30:50,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:50,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:50,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:50,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:50,651 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997999901] [2021-08-27 11:30:50,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997999901] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:50,652 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491797743] [2021-08-27 11:30:50,652 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:30:50,652 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:50,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:50,653 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:50,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-08-27 11:30:51,254 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2021-08-27 11:30:51,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:51,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 23 conjunts are in the unsatisfiable core [2021-08-27 11:30:51,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:51,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 0 proven. 1092 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:51,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491797743] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:51,582 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:51,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23] total 23 [2021-08-27 11:30:51,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569521174] [2021-08-27 11:30:51,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-08-27 11:30:51,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:51,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-27 11:30:51,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-08-27 11:30:51,584 INFO L87 Difference]: Start difference. First operand 111 states and 111 transitions. Second operand has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:51,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:51,642 INFO L93 Difference]: Finished difference Result 118 states and 118 transitions. [2021-08-27 11:30:51,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-08-27 11:30:51,642 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 110 [2021-08-27 11:30:51,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:51,643 INFO L225 Difference]: With dead ends: 118 [2021-08-27 11:30:51,643 INFO L226 Difference]: Without dead ends: 117 [2021-08-27 11:30:51,643 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 227.2ms TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-08-27 11:30:51,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-08-27 11:30:51,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 116. [2021-08-27 11:30:51,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.008695652173913) internal successors, (116), 115 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:51,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 116 transitions. [2021-08-27 11:30:51,646 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 116 transitions. Word has length 110 [2021-08-27 11:30:51,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:51,647 INFO L470 AbstractCegarLoop]: Abstraction has 116 states and 116 transitions. [2021-08-27 11:30:51,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 4.782608695652174) internal successors, (110), 24 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:51,647 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 116 transitions. [2021-08-27 11:30:51,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2021-08-27 11:30:51,647 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:51,647 INFO L512 BasicCegarLoop]: trace histogram [23, 22, 22, 22, 22, 1, 1, 1, 1] [2021-08-27 11:30:51,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-08-27 11:30:51,848 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-08-27 11:30:51,848 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:51,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:51,848 INFO L82 PathProgramCache]: Analyzing trace with hash 708663333, now seen corresponding path program 22 times [2021-08-27 11:30:51,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:51,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289725613] [2021-08-27 11:30:51,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:51,849 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:51,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:52,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:52,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:52,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289725613] [2021-08-27 11:30:52,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289725613] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:52,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307468362] [2021-08-27 11:30:52,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:30:52,186 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:52,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:52,189 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:52,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-08-27 11:30:52,769 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:30:52,770 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:52,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 281 conjuncts, 24 conjunts are in the unsatisfiable core [2021-08-27 11:30:52,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:53,161 INFO L134 CoverageAnalysis]: Checked inductivity of 1199 backedges. 0 proven. 1199 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:53,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307468362] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:53,163 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:53,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 24 [2021-08-27 11:30:53,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034290503] [2021-08-27 11:30:53,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-08-27 11:30:53,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:53,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-08-27 11:30:53,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-08-27 11:30:53,165 INFO L87 Difference]: Start difference. First operand 116 states and 116 transitions. Second operand has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:53,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:53,219 INFO L93 Difference]: Finished difference Result 123 states and 123 transitions. [2021-08-27 11:30:53,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-27 11:30:53,219 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2021-08-27 11:30:53,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:53,220 INFO L225 Difference]: With dead ends: 123 [2021-08-27 11:30:53,220 INFO L226 Difference]: Without dead ends: 122 [2021-08-27 11:30:53,221 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 237.3ms TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2021-08-27 11:30:53,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2021-08-27 11:30:53,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 121. [2021-08-27 11:30:53,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.0083333333333333) internal successors, (121), 120 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:53,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 121 transitions. [2021-08-27 11:30:53,223 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 121 transitions. Word has length 115 [2021-08-27 11:30:53,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:53,223 INFO L470 AbstractCegarLoop]: Abstraction has 121 states and 121 transitions. [2021-08-27 11:30:53,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 4.791666666666667) internal successors, (115), 25 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:53,223 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 121 transitions. [2021-08-27 11:30:53,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-08-27 11:30:53,224 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:53,224 INFO L512 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 1, 1, 1, 1] [2021-08-27 11:30:53,242 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2021-08-27 11:30:53,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:53,425 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:53,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:53,425 INFO L82 PathProgramCache]: Analyzing trace with hash 542507505, now seen corresponding path program 23 times [2021-08-27 11:30:53,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:53,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177434087] [2021-08-27 11:30:53,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:53,426 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:53,753 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:53,754 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:53,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177434087] [2021-08-27 11:30:53,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177434087] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:53,754 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874438175] [2021-08-27 11:30:53,754 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:30:53,754 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:53,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:53,755 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:53,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-08-27 11:30:54,391 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2021-08-27 11:30:54,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:54,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 25 conjunts are in the unsatisfiable core [2021-08-27 11:30:54,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:54,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1311 backedges. 0 proven. 1311 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:54,748 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874438175] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:54,748 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:54,748 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 25 [2021-08-27 11:30:54,748 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116369939] [2021-08-27 11:30:54,749 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-27 11:30:54,749 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:54,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-27 11:30:54,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-08-27 11:30:54,749 INFO L87 Difference]: Start difference. First operand 121 states and 121 transitions. Second operand has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:54,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:54,822 INFO L93 Difference]: Finished difference Result 128 states and 128 transitions. [2021-08-27 11:30:54,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-27 11:30:54,822 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2021-08-27 11:30:54,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:54,823 INFO L225 Difference]: With dead ends: 128 [2021-08-27 11:30:54,823 INFO L226 Difference]: Without dead ends: 127 [2021-08-27 11:30:54,824 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 249.1ms TimeCoverageRelationStatistics Valid=325, Invalid=325, Unknown=0, NotChecked=0, Total=650 [2021-08-27 11:30:54,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-08-27 11:30:54,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 126. [2021-08-27 11:30:54,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 1.008) internal successors, (126), 125 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:54,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 126 transitions. [2021-08-27 11:30:54,827 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 126 transitions. Word has length 120 [2021-08-27 11:30:54,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:54,827 INFO L470 AbstractCegarLoop]: Abstraction has 126 states and 126 transitions. [2021-08-27 11:30:54,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.8) internal successors, (120), 26 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:54,827 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 126 transitions. [2021-08-27 11:30:54,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2021-08-27 11:30:54,828 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:54,828 INFO L512 BasicCegarLoop]: trace histogram [25, 24, 24, 24, 24, 1, 1, 1, 1] [2021-08-27 11:30:54,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:55,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-08-27 11:30:55,045 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:55,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:55,045 INFO L82 PathProgramCache]: Analyzing trace with hash -128215131, now seen corresponding path program 24 times [2021-08-27 11:30:55,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:55,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066130848] [2021-08-27 11:30:55,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:55,046 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:55,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:55,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:55,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066130848] [2021-08-27 11:30:55,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066130848] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:55,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1108328834] [2021-08-27 11:30:55,401 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:30:55,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:55,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:55,402 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:55,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-08-27 11:30:56,053 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2021-08-27 11:30:56,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:56,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 26 conjunts are in the unsatisfiable core [2021-08-27 11:30:56,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:56,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1428 backedges. 0 proven. 1428 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:56,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1108328834] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:56,410 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:56,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 26 [2021-08-27 11:30:56,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419681553] [2021-08-27 11:30:56,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-08-27 11:30:56,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:56,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-08-27 11:30:56,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-08-27 11:30:56,412 INFO L87 Difference]: Start difference. First operand 126 states and 126 transitions. Second operand has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:56,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:56,499 INFO L93 Difference]: Finished difference Result 133 states and 133 transitions. [2021-08-27 11:30:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-08-27 11:30:56,500 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 125 [2021-08-27 11:30:56,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:56,501 INFO L225 Difference]: With dead ends: 133 [2021-08-27 11:30:56,501 INFO L226 Difference]: Without dead ends: 132 [2021-08-27 11:30:56,501 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 275.4ms TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2021-08-27 11:30:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2021-08-27 11:30:56,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 131. [2021-08-27 11:30:56,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 130 states have (on average 1.0076923076923077) internal successors, (131), 130 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:56,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 131 transitions. [2021-08-27 11:30:56,504 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 131 transitions. Word has length 125 [2021-08-27 11:30:56,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:56,505 INFO L470 AbstractCegarLoop]: Abstraction has 131 states and 131 transitions. [2021-08-27 11:30:56,505 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 4.8076923076923075) internal successors, (125), 27 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:56,505 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 131 transitions. [2021-08-27 11:30:56,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2021-08-27 11:30:56,506 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:56,506 INFO L512 BasicCegarLoop]: trace histogram [26, 25, 25, 25, 25, 1, 1, 1, 1] [2021-08-27 11:30:56,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-08-27 11:30:56,716 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-08-27 11:30:56,717 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:56,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:56,718 INFO L82 PathProgramCache]: Analyzing trace with hash -793546127, now seen corresponding path program 25 times [2021-08-27 11:30:56,718 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:56,718 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355383226] [2021-08-27 11:30:56,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:56,718 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1550 backedges. 0 proven. 1550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:57,080 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:57,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355383226] [2021-08-27 11:30:57,080 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355383226] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:57,080 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681873087] [2021-08-27 11:30:57,080 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:30:57,080 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:57,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:57,083 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:57,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-08-27 11:30:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:57,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 27 conjunts are in the unsatisfiable core [2021-08-27 11:30:57,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:58,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1550 backedges. 0 proven. 1550 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:58,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681873087] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:58,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:58,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27] total 27 [2021-08-27 11:30:58,106 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969809712] [2021-08-27 11:30:58,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-08-27 11:30:58,107 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:58,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-08-27 11:30:58,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-08-27 11:30:58,107 INFO L87 Difference]: Start difference. First operand 131 states and 131 transitions. Second operand has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:58,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:30:58,182 INFO L93 Difference]: Finished difference Result 138 states and 138 transitions. [2021-08-27 11:30:58,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-27 11:30:58,182 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 130 [2021-08-27 11:30:58,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:30:58,183 INFO L225 Difference]: With dead ends: 138 [2021-08-27 11:30:58,183 INFO L226 Difference]: Without dead ends: 137 [2021-08-27 11:30:58,183 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 287.4ms TimeCoverageRelationStatistics Valid=378, Invalid=378, Unknown=0, NotChecked=0, Total=756 [2021-08-27 11:30:58,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2021-08-27 11:30:58,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 136. [2021-08-27 11:30:58,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 1.0074074074074073) internal successors, (136), 135 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:58,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 136 transitions. [2021-08-27 11:30:58,186 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 136 transitions. Word has length 130 [2021-08-27 11:30:58,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:30:58,187 INFO L470 AbstractCegarLoop]: Abstraction has 136 states and 136 transitions. [2021-08-27 11:30:58,187 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 27 states have (on average 4.814814814814815) internal successors, (130), 28 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:30:58,187 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 136 transitions. [2021-08-27 11:30:58,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-08-27 11:30:58,187 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:30:58,187 INFO L512 BasicCegarLoop]: trace histogram [27, 26, 26, 26, 26, 1, 1, 1, 1] [2021-08-27 11:30:58,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-08-27 11:30:58,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:58,388 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:30:58,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:30:58,388 INFO L82 PathProgramCache]: Analyzing trace with hash -212830427, now seen corresponding path program 26 times [2021-08-27 11:30:58,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:30:58,388 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548377325] [2021-08-27 11:30:58,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:30:58,389 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:30:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:30:58,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 0 proven. 1677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:58,811 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:30:58,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548377325] [2021-08-27 11:30:58,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548377325] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:58,811 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623711627] [2021-08-27 11:30:58,811 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:30:58,811 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:30:58,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:30:58,812 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:30:58,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-08-27 11:30:59,528 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:30:59,528 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:30:59,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 28 conjunts are in the unsatisfiable core [2021-08-27 11:30:59,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:30:59,967 INFO L134 CoverageAnalysis]: Checked inductivity of 1677 backedges. 0 proven. 1677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:30:59,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623711627] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:30:59,967 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:30:59,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28] total 28 [2021-08-27 11:30:59,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500569735] [2021-08-27 11:30:59,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2021-08-27 11:30:59,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:30:59,968 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2021-08-27 11:30:59,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-08-27 11:30:59,968 INFO L87 Difference]: Start difference. First operand 136 states and 136 transitions. Second operand has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:00,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:00,047 INFO L93 Difference]: Finished difference Result 143 states and 143 transitions. [2021-08-27 11:31:00,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-27 11:31:00,048 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2021-08-27 11:31:00,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:00,048 INFO L225 Difference]: With dead ends: 143 [2021-08-27 11:31:00,048 INFO L226 Difference]: Without dead ends: 142 [2021-08-27 11:31:00,049 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 341.2ms TimeCoverageRelationStatistics Valid=406, Invalid=406, Unknown=0, NotChecked=0, Total=812 [2021-08-27 11:31:00,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2021-08-27 11:31:00,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 141. [2021-08-27 11:31:00,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 1.0071428571428571) internal successors, (141), 140 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:00,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 141 transitions. [2021-08-27 11:31:00,051 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 141 transitions. Word has length 135 [2021-08-27 11:31:00,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:00,052 INFO L470 AbstractCegarLoop]: Abstraction has 141 states and 141 transitions. [2021-08-27 11:31:00,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 4.821428571428571) internal successors, (135), 29 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:00,052 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 141 transitions. [2021-08-27 11:31:00,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-08-27 11:31:00,052 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:00,053 INFO L512 BasicCegarLoop]: trace histogram [28, 27, 27, 27, 27, 1, 1, 1, 1] [2021-08-27 11:31:00,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:00,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:00,265 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:00,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:00,265 INFO L82 PathProgramCache]: Analyzing trace with hash -245480719, now seen corresponding path program 27 times [2021-08-27 11:31:00,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:00,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952953803] [2021-08-27 11:31:00,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:00,265 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:00,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:00,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 1809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:00,696 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:00,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952953803] [2021-08-27 11:31:00,696 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952953803] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:00,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1839553881] [2021-08-27 11:31:00,696 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:31:00,696 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:00,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:00,697 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:00,722 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-08-27 11:31:01,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2021-08-27 11:31:01,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:01,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 29 conjunts are in the unsatisfiable core [2021-08-27 11:31:01,524 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 1809 backedges. 0 proven. 1809 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:01,912 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1839553881] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:01,912 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:01,912 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29] total 29 [2021-08-27 11:31:01,912 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118498128] [2021-08-27 11:31:01,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-27 11:31:01,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:01,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-27 11:31:01,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-08-27 11:31:01,913 INFO L87 Difference]: Start difference. First operand 141 states and 141 transitions. Second operand has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:01,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:01,984 INFO L93 Difference]: Finished difference Result 148 states and 148 transitions. [2021-08-27 11:31:01,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-27 11:31:01,985 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2021-08-27 11:31:01,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:01,985 INFO L225 Difference]: With dead ends: 148 [2021-08-27 11:31:01,985 INFO L226 Difference]: Without dead ends: 147 [2021-08-27 11:31:01,986 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 348.0ms TimeCoverageRelationStatistics Valid=435, Invalid=435, Unknown=0, NotChecked=0, Total=870 [2021-08-27 11:31:01,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2021-08-27 11:31:01,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 146. [2021-08-27 11:31:01,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 145 states have (on average 1.006896551724138) internal successors, (146), 145 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:01,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 146 transitions. [2021-08-27 11:31:01,988 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 146 transitions. Word has length 140 [2021-08-27 11:31:01,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:01,989 INFO L470 AbstractCegarLoop]: Abstraction has 146 states and 146 transitions. [2021-08-27 11:31:01,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 4.827586206896552) internal successors, (140), 30 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:01,989 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 146 transitions. [2021-08-27 11:31:01,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-08-27 11:31:01,989 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:01,989 INFO L512 BasicCegarLoop]: trace histogram [29, 28, 28, 28, 28, 1, 1, 1, 1] [2021-08-27 11:31:02,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2021-08-27 11:31:02,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:02,190 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:02,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:02,190 INFO L82 PathProgramCache]: Analyzing trace with hash 2001991333, now seen corresponding path program 28 times [2021-08-27 11:31:02,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:02,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784433097] [2021-08-27 11:31:02,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:02,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:02,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 0 proven. 1946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:02,667 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:02,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784433097] [2021-08-27 11:31:02,667 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784433097] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:02,667 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627321564] [2021-08-27 11:31:02,667 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:31:02,667 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:02,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:02,668 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:02,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-08-27 11:31:03,502 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:31:03,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:03,504 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 30 conjunts are in the unsatisfiable core [2021-08-27 11:31:03,505 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:03,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1946 backedges. 0 proven. 1946 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:03,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1627321564] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:03,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:03,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 30 [2021-08-27 11:31:03,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595546265] [2021-08-27 11:31:03,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-08-27 11:31:03,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:03,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-08-27 11:31:03,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-08-27 11:31:03,916 INFO L87 Difference]: Start difference. First operand 146 states and 146 transitions. Second operand has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:03,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:03,989 INFO L93 Difference]: Finished difference Result 153 states and 153 transitions. [2021-08-27 11:31:03,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-08-27 11:31:03,989 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2021-08-27 11:31:03,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:03,990 INFO L225 Difference]: With dead ends: 153 [2021-08-27 11:31:03,990 INFO L226 Difference]: Without dead ends: 152 [2021-08-27 11:31:03,990 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 392.4ms TimeCoverageRelationStatistics Valid=465, Invalid=465, Unknown=0, NotChecked=0, Total=930 [2021-08-27 11:31:03,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-08-27 11:31:03,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 151. [2021-08-27 11:31:03,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.0066666666666666) internal successors, (151), 150 states have internal predecessors, (151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:03,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 151 transitions. [2021-08-27 11:31:03,994 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 151 transitions. Word has length 145 [2021-08-27 11:31:03,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:03,995 INFO L470 AbstractCegarLoop]: Abstraction has 151 states and 151 transitions. [2021-08-27 11:31:03,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 4.833333333333333) internal successors, (145), 31 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 151 transitions. [2021-08-27 11:31:03,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-08-27 11:31:03,996 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:03,996 INFO L512 BasicCegarLoop]: trace histogram [30, 29, 29, 29, 29, 1, 1, 1, 1] [2021-08-27 11:31:04,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2021-08-27 11:31:04,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:04,203 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:04,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:04,203 INFO L82 PathProgramCache]: Analyzing trace with hash 152990577, now seen corresponding path program 29 times [2021-08-27 11:31:04,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:04,204 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589271683] [2021-08-27 11:31:04,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:04,204 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:04,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:04,677 INFO L134 CoverageAnalysis]: Checked inductivity of 2088 backedges. 0 proven. 2088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:04,677 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:04,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589271683] [2021-08-27 11:31:04,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589271683] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:04,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1115843789] [2021-08-27 11:31:04,678 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:31:04,678 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:04,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:04,681 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:04,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2021-08-27 11:31:05,602 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 30 check-sat command(s) [2021-08-27 11:31:05,602 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:05,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 31 conjunts are in the unsatisfiable core [2021-08-27 11:31:05,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:06,022 INFO L134 CoverageAnalysis]: Checked inductivity of 2088 backedges. 0 proven. 2088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:06,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1115843789] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:06,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:06,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31] total 31 [2021-08-27 11:31:06,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914877721] [2021-08-27 11:31:06,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2021-08-27 11:31:06,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:06,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2021-08-27 11:31:06,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-08-27 11:31:06,024 INFO L87 Difference]: Start difference. First operand 151 states and 151 transitions. Second operand has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:06,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:06,088 INFO L93 Difference]: Finished difference Result 158 states and 158 transitions. [2021-08-27 11:31:06,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-27 11:31:06,088 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 150 [2021-08-27 11:31:06,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:06,089 INFO L225 Difference]: With dead ends: 158 [2021-08-27 11:31:06,089 INFO L226 Difference]: Without dead ends: 157 [2021-08-27 11:31:06,090 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 375.2ms TimeCoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2021-08-27 11:31:06,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2021-08-27 11:31:06,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 156. [2021-08-27 11:31:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 1.0064516129032257) internal successors, (156), 155 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 156 transitions. [2021-08-27 11:31:06,093 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 156 transitions. Word has length 150 [2021-08-27 11:31:06,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:06,094 INFO L470 AbstractCegarLoop]: Abstraction has 156 states and 156 transitions. [2021-08-27 11:31:06,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 4.838709677419355) internal successors, (150), 32 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:06,094 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 156 transitions. [2021-08-27 11:31:06,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2021-08-27 11:31:06,095 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:06,095 INFO L512 BasicCegarLoop]: trace histogram [31, 30, 30, 30, 30, 1, 1, 1, 1] [2021-08-27 11:31:06,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2021-08-27 11:31:06,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2021-08-27 11:31:06,297 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:06,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:06,297 INFO L82 PathProgramCache]: Analyzing trace with hash -90302939, now seen corresponding path program 30 times [2021-08-27 11:31:06,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:06,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70554005] [2021-08-27 11:31:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:06,298 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:06,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:06,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:06,807 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:06,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70554005] [2021-08-27 11:31:06,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70554005] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:06,808 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206856185] [2021-08-27 11:31:06,808 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:31:06,808 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:06,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:06,809 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:06,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2021-08-27 11:31:07,798 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 31 check-sat command(s) [2021-08-27 11:31:07,798 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:07,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-27 11:31:07,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 2235 backedges. 0 proven. 2235 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:08,214 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206856185] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:08,214 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:08,214 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 32] total 32 [2021-08-27 11:31:08,214 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168210066] [2021-08-27 11:31:08,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-08-27 11:31:08,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:08,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-08-27 11:31:08,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-08-27 11:31:08,215 INFO L87 Difference]: Start difference. First operand 156 states and 156 transitions. Second operand has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:08,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:08,306 INFO L93 Difference]: Finished difference Result 163 states and 163 transitions. [2021-08-27 11:31:08,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-27 11:31:08,306 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2021-08-27 11:31:08,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:08,307 INFO L225 Difference]: With dead ends: 163 [2021-08-27 11:31:08,307 INFO L226 Difference]: Without dead ends: 162 [2021-08-27 11:31:08,308 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 420.0ms TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2021-08-27 11:31:08,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2021-08-27 11:31:08,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 161. [2021-08-27 11:31:08,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.00625) internal successors, (161), 160 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:08,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 161 transitions. [2021-08-27 11:31:08,311 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 161 transitions. Word has length 155 [2021-08-27 11:31:08,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:08,312 INFO L470 AbstractCegarLoop]: Abstraction has 161 states and 161 transitions. [2021-08-27 11:31:08,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 4.84375) internal successors, (155), 33 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:08,312 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 161 transitions. [2021-08-27 11:31:08,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-08-27 11:31:08,313 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:08,313 INFO L512 BasicCegarLoop]: trace histogram [32, 31, 31, 31, 31, 1, 1, 1, 1] [2021-08-27 11:31:08,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2021-08-27 11:31:08,530 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:08,531 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:08,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:08,531 INFO L82 PathProgramCache]: Analyzing trace with hash -994311183, now seen corresponding path program 31 times [2021-08-27 11:31:08,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:08,531 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639254313] [2021-08-27 11:31:08,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:08,531 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:08,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:09,086 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:09,087 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:09,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639254313] [2021-08-27 11:31:09,087 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639254313] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:09,087 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309272886] [2021-08-27 11:31:09,087 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:31:09,088 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:09,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:09,089 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:09,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2021-08-27 11:31:10,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:10,114 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 33 conjunts are in the unsatisfiable core [2021-08-27 11:31:10,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 2387 backedges. 0 proven. 2387 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:10,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309272886] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:10,537 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:10,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33] total 33 [2021-08-27 11:31:10,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941788192] [2021-08-27 11:31:10,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-08-27 11:31:10,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:10,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-08-27 11:31:10,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 11:31:10,539 INFO L87 Difference]: Start difference. First operand 161 states and 161 transitions. Second operand has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:10,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:10,615 INFO L93 Difference]: Finished difference Result 168 states and 168 transitions. [2021-08-27 11:31:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-08-27 11:31:10,616 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-08-27 11:31:10,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:10,617 INFO L225 Difference]: With dead ends: 168 [2021-08-27 11:31:10,617 INFO L226 Difference]: Without dead ends: 167 [2021-08-27 11:31:10,617 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 465.4ms TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2021-08-27 11:31:10,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-08-27 11:31:10,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 166. [2021-08-27 11:31:10,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.006060606060606) internal successors, (166), 165 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:10,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 166 transitions. [2021-08-27 11:31:10,621 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 166 transitions. Word has length 160 [2021-08-27 11:31:10,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:10,622 INFO L470 AbstractCegarLoop]: Abstraction has 166 states and 166 transitions. [2021-08-27 11:31:10,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 4.848484848484849) internal successors, (160), 34 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:10,622 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 166 transitions. [2021-08-27 11:31:10,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2021-08-27 11:31:10,623 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:10,623 INFO L512 BasicCegarLoop]: trace histogram [33, 32, 32, 32, 32, 1, 1, 1, 1] [2021-08-27 11:31:10,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:10,836 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:10,837 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:10,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:10,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1922640475, now seen corresponding path program 32 times [2021-08-27 11:31:10,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:10,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680572232] [2021-08-27 11:31:10,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:10,838 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:10,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:11,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2544 backedges. 0 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:11,397 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:11,397 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680572232] [2021-08-27 11:31:11,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680572232] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:11,398 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021210605] [2021-08-27 11:31:11,398 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:31:11,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:11,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:11,400 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:11,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2021-08-27 11:31:12,473 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:31:12,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:12,475 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-27 11:31:12,477 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:12,947 INFO L134 CoverageAnalysis]: Checked inductivity of 2544 backedges. 0 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:12,947 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021210605] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:12,947 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:12,947 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34] total 34 [2021-08-27 11:31:12,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568050753] [2021-08-27 11:31:12,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2021-08-27 11:31:12,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:12,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-08-27 11:31:12,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-08-27 11:31:12,949 INFO L87 Difference]: Start difference. First operand 166 states and 166 transitions. Second operand has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:13,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:13,044 INFO L93 Difference]: Finished difference Result 173 states and 173 transitions. [2021-08-27 11:31:13,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-27 11:31:13,045 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 165 [2021-08-27 11:31:13,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:13,046 INFO L225 Difference]: With dead ends: 173 [2021-08-27 11:31:13,046 INFO L226 Difference]: Without dead ends: 172 [2021-08-27 11:31:13,046 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 453.6ms TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2021-08-27 11:31:13,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2021-08-27 11:31:13,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 171. [2021-08-27 11:31:13,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 1.0058823529411764) internal successors, (171), 170 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:13,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 171 transitions. [2021-08-27 11:31:13,050 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 171 transitions. Word has length 165 [2021-08-27 11:31:13,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:13,050 INFO L470 AbstractCegarLoop]: Abstraction has 171 states and 171 transitions. [2021-08-27 11:31:13,051 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 4.852941176470588) internal successors, (165), 35 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:13,051 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 171 transitions. [2021-08-27 11:31:13,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2021-08-27 11:31:13,051 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:13,051 INFO L512 BasicCegarLoop]: trace histogram [34, 33, 33, 33, 33, 1, 1, 1, 1] [2021-08-27 11:31:13,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:13,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 34 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-08-27 11:31:13,276 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:13,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:13,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1996420209, now seen corresponding path program 33 times [2021-08-27 11:31:13,277 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:13,277 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560421026] [2021-08-27 11:31:13,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:13,277 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:13,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:13,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2706 backedges. 0 proven. 2706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:13,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:13,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560421026] [2021-08-27 11:31:13,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560421026] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:13,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337112641] [2021-08-27 11:31:13,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:31:13,878 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:13,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:13,879 INFO L229 MonitoredProcess]: Starting monitored process 35 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:13,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Waiting until timeout for monitored process [2021-08-27 11:31:15,019 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 34 check-sat command(s) [2021-08-27 11:31:15,019 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:15,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 35 conjunts are in the unsatisfiable core [2021-08-27 11:31:15,022 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:15,481 INFO L134 CoverageAnalysis]: Checked inductivity of 2706 backedges. 0 proven. 2706 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:15,482 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1337112641] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:15,482 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:15,482 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35] total 35 [2021-08-27 11:31:15,482 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996213900] [2021-08-27 11:31:15,482 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2021-08-27 11:31:15,482 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:15,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2021-08-27 11:31:15,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-08-27 11:31:15,483 INFO L87 Difference]: Start difference. First operand 171 states and 171 transitions. Second operand has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:15,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:15,560 INFO L93 Difference]: Finished difference Result 178 states and 178 transitions. [2021-08-27 11:31:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-27 11:31:15,560 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 170 [2021-08-27 11:31:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:15,561 INFO L225 Difference]: With dead ends: 178 [2021-08-27 11:31:15,561 INFO L226 Difference]: Without dead ends: 177 [2021-08-27 11:31:15,562 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 495.8ms TimeCoverageRelationStatistics Valid=630, Invalid=630, Unknown=0, NotChecked=0, Total=1260 [2021-08-27 11:31:15,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2021-08-27 11:31:15,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 176. [2021-08-27 11:31:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 1.0057142857142858) internal successors, (176), 175 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:15,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 176 transitions. [2021-08-27 11:31:15,565 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 176 transitions. Word has length 170 [2021-08-27 11:31:15,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:15,566 INFO L470 AbstractCegarLoop]: Abstraction has 176 states and 176 transitions. [2021-08-27 11:31:15,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 4.857142857142857) internal successors, (170), 36 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:15,566 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 176 transitions. [2021-08-27 11:31:15,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-08-27 11:31:15,566 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:15,567 INFO L512 BasicCegarLoop]: trace histogram [35, 34, 34, 34, 34, 1, 1, 1, 1] [2021-08-27 11:31:15,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (35)] Ended with exit code 0 [2021-08-27 11:31:15,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2021-08-27 11:31:15,769 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:15,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:15,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1508259109, now seen corresponding path program 34 times [2021-08-27 11:31:15,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:15,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106189316] [2021-08-27 11:31:15,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:15,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:16,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2873 backedges. 0 proven. 2873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:16,393 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:16,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106189316] [2021-08-27 11:31:16,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106189316] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:16,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674463882] [2021-08-27 11:31:16,393 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:31:16,394 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:16,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:16,397 INFO L229 MonitoredProcess]: Starting monitored process 36 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:16,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Waiting until timeout for monitored process [2021-08-27 11:31:17,586 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:31:17,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:17,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-27 11:31:17,590 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:18,109 INFO L134 CoverageAnalysis]: Checked inductivity of 2873 backedges. 0 proven. 2873 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:18,110 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674463882] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:18,110 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:18,110 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36] total 36 [2021-08-27 11:31:18,111 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207228958] [2021-08-27 11:31:18,111 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-08-27 11:31:18,111 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:18,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-27 11:31:18,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-08-27 11:31:18,114 INFO L87 Difference]: Start difference. First operand 176 states and 176 transitions. Second operand has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:18,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:18,196 INFO L93 Difference]: Finished difference Result 183 states and 183 transitions. [2021-08-27 11:31:18,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-27 11:31:18,198 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2021-08-27 11:31:18,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:18,199 INFO L225 Difference]: With dead ends: 183 [2021-08-27 11:31:18,199 INFO L226 Difference]: Without dead ends: 182 [2021-08-27 11:31:18,199 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 518.0ms TimeCoverageRelationStatistics Valid=666, Invalid=666, Unknown=0, NotChecked=0, Total=1332 [2021-08-27 11:31:18,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2021-08-27 11:31:18,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 181. [2021-08-27 11:31:18,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 1.0055555555555555) internal successors, (181), 180 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:18,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 181 transitions. [2021-08-27 11:31:18,204 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 181 transitions. Word has length 175 [2021-08-27 11:31:18,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:18,204 INFO L470 AbstractCegarLoop]: Abstraction has 181 states and 181 transitions. [2021-08-27 11:31:18,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 4.861111111111111) internal successors, (175), 37 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:18,205 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 181 transitions. [2021-08-27 11:31:18,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2021-08-27 11:31:18,205 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:18,205 INFO L512 BasicCegarLoop]: trace histogram [36, 35, 35, 35, 35, 1, 1, 1, 1] [2021-08-27 11:31:18,232 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (36)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:18,431 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 36 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-08-27 11:31:18,432 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:18,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:18,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1733344015, now seen corresponding path program 35 times [2021-08-27 11:31:18,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:18,432 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230713060] [2021-08-27 11:31:18,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:18,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:19,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3045 backedges. 0 proven. 3045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:19,061 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:19,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230713060] [2021-08-27 11:31:19,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230713060] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:19,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [633553757] [2021-08-27 11:31:19,062 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:31:19,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:19,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:19,063 INFO L229 MonitoredProcess]: Starting monitored process 37 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:19,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Waiting until timeout for monitored process [2021-08-27 11:31:20,332 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2021-08-27 11:31:20,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:20,334 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 37 conjunts are in the unsatisfiable core [2021-08-27 11:31:20,335 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:20,865 INFO L134 CoverageAnalysis]: Checked inductivity of 3045 backedges. 0 proven. 3045 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:20,865 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [633553757] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:20,865 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:20,865 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37] total 37 [2021-08-27 11:31:20,865 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272767788] [2021-08-27 11:31:20,865 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2021-08-27 11:31:20,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:20,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2021-08-27 11:31:20,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-08-27 11:31:20,867 INFO L87 Difference]: Start difference. First operand 181 states and 181 transitions. Second operand has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:20,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:20,960 INFO L93 Difference]: Finished difference Result 188 states and 188 transitions. [2021-08-27 11:31:20,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2021-08-27 11:31:20,961 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 180 [2021-08-27 11:31:20,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:20,962 INFO L225 Difference]: With dead ends: 188 [2021-08-27 11:31:20,962 INFO L226 Difference]: Without dead ends: 187 [2021-08-27 11:31:20,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 528.5ms TimeCoverageRelationStatistics Valid=703, Invalid=703, Unknown=0, NotChecked=0, Total=1406 [2021-08-27 11:31:20,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-08-27 11:31:20,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2021-08-27 11:31:20,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 1.0054054054054054) internal successors, (186), 185 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:20,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2021-08-27 11:31:20,965 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 180 [2021-08-27 11:31:20,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:20,966 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2021-08-27 11:31:20,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 4.864864864864865) internal successors, (180), 38 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:20,966 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2021-08-27 11:31:20,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-08-27 11:31:20,967 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:20,967 INFO L512 BasicCegarLoop]: trace histogram [37, 36, 36, 36, 36, 1, 1, 1, 1] [2021-08-27 11:31:21,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (37)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:21,180 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-08-27 11:31:21,181 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:21,181 INFO L82 PathProgramCache]: Analyzing trace with hash 609498277, now seen corresponding path program 36 times [2021-08-27 11:31:21,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:21,181 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782457409] [2021-08-27 11:31:21,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:21,181 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:21,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:21,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 0 proven. 3222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:21,855 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:21,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782457409] [2021-08-27 11:31:21,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782457409] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:21,855 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289589533] [2021-08-27 11:31:21,856 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:31:21,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:21,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:21,857 INFO L229 MonitoredProcess]: Starting monitored process 38 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:21,883 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Waiting until timeout for monitored process [2021-08-27 11:31:23,272 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 37 check-sat command(s) [2021-08-27 11:31:23,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:23,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 38 conjunts are in the unsatisfiable core [2021-08-27 11:31:23,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:23,801 INFO L134 CoverageAnalysis]: Checked inductivity of 3222 backedges. 0 proven. 3222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:23,802 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289589533] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:23,802 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:23,802 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38] total 38 [2021-08-27 11:31:23,802 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727857390] [2021-08-27 11:31:23,802 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2021-08-27 11:31:23,802 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:23,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2021-08-27 11:31:23,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-08-27 11:31:23,803 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:23,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:23,907 INFO L93 Difference]: Finished difference Result 193 states and 193 transitions. [2021-08-27 11:31:23,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-08-27 11:31:23,907 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-08-27 11:31:23,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:23,908 INFO L225 Difference]: With dead ends: 193 [2021-08-27 11:31:23,909 INFO L226 Difference]: Without dead ends: 192 [2021-08-27 11:31:23,909 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 185 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 571.6ms TimeCoverageRelationStatistics Valid=741, Invalid=741, Unknown=0, NotChecked=0, Total=1482 [2021-08-27 11:31:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-08-27 11:31:23,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2021-08-27 11:31:23,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 190 states have (on average 1.0052631578947369) internal successors, (191), 190 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:23,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 191 transitions. [2021-08-27 11:31:23,913 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 191 transitions. Word has length 185 [2021-08-27 11:31:23,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:23,914 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 191 transitions. [2021-08-27 11:31:23,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 4.868421052631579) internal successors, (185), 39 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:23,914 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 191 transitions. [2021-08-27 11:31:23,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2021-08-27 11:31:23,915 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:23,915 INFO L512 BasicCegarLoop]: trace histogram [38, 37, 37, 37, 37, 1, 1, 1, 1] [2021-08-27 11:31:23,943 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (38)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:24,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,38 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:24,141 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:24,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:24,141 INFO L82 PathProgramCache]: Analyzing trace with hash 1217721713, now seen corresponding path program 37 times [2021-08-27 11:31:24,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:24,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439261203] [2021-08-27 11:31:24,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:24,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:24,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:24,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3404 backedges. 0 proven. 3404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:24,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:24,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439261203] [2021-08-27 11:31:24,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439261203] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:24,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127671989] [2021-08-27 11:31:24,845 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:31:24,845 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:24,845 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:24,846 INFO L229 MonitoredProcess]: Starting monitored process 39 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:24,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Waiting until timeout for monitored process [2021-08-27 11:31:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:26,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 39 conjunts are in the unsatisfiable core [2021-08-27 11:31:26,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:26,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3404 backedges. 0 proven. 3404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:26,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127671989] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:26,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:26,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 39] total 39 [2021-08-27 11:31:26,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843395195] [2021-08-27 11:31:26,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-08-27 11:31:26,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:26,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-08-27 11:31:26,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-08-27 11:31:26,870 INFO L87 Difference]: Start difference. First operand 191 states and 191 transitions. Second operand has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:26,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:26,965 INFO L93 Difference]: Finished difference Result 198 states and 198 transitions. [2021-08-27 11:31:26,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2021-08-27 11:31:26,966 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 190 [2021-08-27 11:31:26,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:26,967 INFO L225 Difference]: With dead ends: 198 [2021-08-27 11:31:26,967 INFO L226 Difference]: Without dead ends: 197 [2021-08-27 11:31:26,967 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 596.3ms TimeCoverageRelationStatistics Valid=780, Invalid=780, Unknown=0, NotChecked=0, Total=1560 [2021-08-27 11:31:26,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-08-27 11:31:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 196. [2021-08-27 11:31:26,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 1.005128205128205) internal successors, (196), 195 states have internal predecessors, (196), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:26,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 196 transitions. [2021-08-27 11:31:26,971 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 196 transitions. Word has length 190 [2021-08-27 11:31:26,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:26,972 INFO L470 AbstractCegarLoop]: Abstraction has 196 states and 196 transitions. [2021-08-27 11:31:26,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 39 states have (on average 4.871794871794871) internal successors, (190), 40 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 196 transitions. [2021-08-27 11:31:26,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-08-27 11:31:26,973 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:26,973 INFO L512 BasicCegarLoop]: trace histogram [39, 38, 38, 38, 38, 1, 1, 1, 1] [2021-08-27 11:31:27,004 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (39)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:27,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2021-08-27 11:31:27,201 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:27,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:27,201 INFO L82 PathProgramCache]: Analyzing trace with hash -890711003, now seen corresponding path program 38 times [2021-08-27 11:31:27,202 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:27,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622127890] [2021-08-27 11:31:27,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:27,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:27,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 0 proven. 3591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:27,932 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:27,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622127890] [2021-08-27 11:31:27,932 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622127890] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:27,932 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773201595] [2021-08-27 11:31:27,932 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:31:27,932 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:27,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:27,933 INFO L229 MonitoredProcess]: Starting monitored process 40 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:27,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Waiting until timeout for monitored process [2021-08-27 11:31:29,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:31:29,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:29,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 40 conjunts are in the unsatisfiable core [2021-08-27 11:31:29,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:29,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 0 proven. 3591 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:29,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773201595] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:29,988 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:29,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 40 [2021-08-27 11:31:29,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36780731] [2021-08-27 11:31:29,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2021-08-27 11:31:29,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:29,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2021-08-27 11:31:29,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-08-27 11:31:29,989 INFO L87 Difference]: Start difference. First operand 196 states and 196 transitions. Second operand has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:30,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:30,073 INFO L93 Difference]: Finished difference Result 203 states and 203 transitions. [2021-08-27 11:31:30,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-08-27 11:31:30,073 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2021-08-27 11:31:30,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:30,074 INFO L225 Difference]: With dead ends: 203 [2021-08-27 11:31:30,074 INFO L226 Difference]: Without dead ends: 202 [2021-08-27 11:31:30,075 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 619.0ms TimeCoverageRelationStatistics Valid=820, Invalid=820, Unknown=0, NotChecked=0, Total=1640 [2021-08-27 11:31:30,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2021-08-27 11:31:30,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 201. [2021-08-27 11:31:30,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 201 states, 200 states have (on average 1.005) internal successors, (201), 200 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:30,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 201 transitions. [2021-08-27 11:31:30,078 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 201 transitions. Word has length 195 [2021-08-27 11:31:30,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:30,078 INFO L470 AbstractCegarLoop]: Abstraction has 201 states and 201 transitions. [2021-08-27 11:31:30,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 4.875) internal successors, (195), 41 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:30,078 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 201 transitions. [2021-08-27 11:31:30,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-08-27 11:31:30,079 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:30,079 INFO L512 BasicCegarLoop]: trace histogram [40, 39, 39, 39, 39, 1, 1, 1, 1] [2021-08-27 11:31:30,115 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (40)] Ended with exit code 0 [2021-08-27 11:31:30,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable42 [2021-08-27 11:31:30,293 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:30,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:30,293 INFO L82 PathProgramCache]: Analyzing trace with hash -881326607, now seen corresponding path program 39 times [2021-08-27 11:31:30,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:30,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159073248] [2021-08-27 11:31:30,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:30,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:31,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 0 proven. 3783 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:31,028 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:31,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159073248] [2021-08-27 11:31:31,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159073248] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:31,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1749908447] [2021-08-27 11:31:31,029 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:31:31,029 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:31,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:31,037 INFO L229 MonitoredProcess]: Starting monitored process 41 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:31,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Waiting until timeout for monitored process [2021-08-27 11:31:32,631 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 40 check-sat command(s) [2021-08-27 11:31:32,631 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:32,633 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 41 conjunts are in the unsatisfiable core [2021-08-27 11:31:32,635 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 0 proven. 3783 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:33,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1749908447] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:33,167 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:33,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 41] total 41 [2021-08-27 11:31:33,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328348530] [2021-08-27 11:31:33,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-08-27 11:31:33,168 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:33,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-08-27 11:31:33,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-08-27 11:31:33,169 INFO L87 Difference]: Start difference. First operand 201 states and 201 transitions. Second operand has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:33,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:33,278 INFO L93 Difference]: Finished difference Result 208 states and 208 transitions. [2021-08-27 11:31:33,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2021-08-27 11:31:33,278 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 200 [2021-08-27 11:31:33,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:33,279 INFO L225 Difference]: With dead ends: 208 [2021-08-27 11:31:33,280 INFO L226 Difference]: Without dead ends: 207 [2021-08-27 11:31:33,281 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 200 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 630.2ms TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2021-08-27 11:31:33,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2021-08-27 11:31:33,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 206. [2021-08-27 11:31:33,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 1.0048780487804878) internal successors, (206), 205 states have internal predecessors, (206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:33,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 206 transitions. [2021-08-27 11:31:33,284 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 206 transitions. Word has length 200 [2021-08-27 11:31:33,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:33,285 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 206 transitions. [2021-08-27 11:31:33,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 4.878048780487805) internal successors, (200), 42 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:33,289 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 206 transitions. [2021-08-27 11:31:33,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-08-27 11:31:33,290 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:33,290 INFO L512 BasicCegarLoop]: trace histogram [41, 40, 40, 40, 40, 1, 1, 1, 1] [2021-08-27 11:31:33,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (41)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:33,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 41 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable43 [2021-08-27 11:31:33,517 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:33,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:33,517 INFO L82 PathProgramCache]: Analyzing trace with hash -975432795, now seen corresponding path program 40 times [2021-08-27 11:31:33,517 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:33,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799581430] [2021-08-27 11:31:33,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:33,517 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:33,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:34,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3980 backedges. 0 proven. 3980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:34,321 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:34,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799581430] [2021-08-27 11:31:34,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799581430] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:34,322 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126396052] [2021-08-27 11:31:34,322 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:31:34,322 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:34,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:34,325 INFO L229 MonitoredProcess]: Starting monitored process 42 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:34,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Waiting until timeout for monitored process [2021-08-27 11:31:36,039 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:31:36,040 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:36,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 42 conjunts are in the unsatisfiable core [2021-08-27 11:31:36,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:36,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3980 backedges. 0 proven. 3980 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:36,611 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126396052] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:36,611 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:36,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42] total 42 [2021-08-27 11:31:36,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211415471] [2021-08-27 11:31:36,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2021-08-27 11:31:36,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:36,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2021-08-27 11:31:36,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-08-27 11:31:36,613 INFO L87 Difference]: Start difference. First operand 206 states and 206 transitions. Second operand has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:36,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:36,701 INFO L93 Difference]: Finished difference Result 213 states and 213 transitions. [2021-08-27 11:31:36,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2021-08-27 11:31:36,701 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 205 [2021-08-27 11:31:36,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:36,702 INFO L225 Difference]: With dead ends: 213 [2021-08-27 11:31:36,702 INFO L226 Difference]: Without dead ends: 212 [2021-08-27 11:31:36,703 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 697.0ms TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2021-08-27 11:31:36,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2021-08-27 11:31:36,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 211. [2021-08-27 11:31:36,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 210 states have (on average 1.0047619047619047) internal successors, (211), 210 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:36,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 211 transitions. [2021-08-27 11:31:36,706 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 211 transitions. Word has length 205 [2021-08-27 11:31:36,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:36,706 INFO L470 AbstractCegarLoop]: Abstraction has 211 states and 211 transitions. [2021-08-27 11:31:36,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 4.880952380952381) internal successors, (205), 43 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:36,707 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 211 transitions. [2021-08-27 11:31:36,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2021-08-27 11:31:36,708 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:36,708 INFO L512 BasicCegarLoop]: trace histogram [42, 41, 41, 41, 41, 1, 1, 1, 1] [2021-08-27 11:31:36,732 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (42)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:36,916 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,42 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:36,917 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:36,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:36,917 INFO L82 PathProgramCache]: Analyzing trace with hash 203454065, now seen corresponding path program 41 times [2021-08-27 11:31:36,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:36,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130686558] [2021-08-27 11:31:36,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:36,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:37,817 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 0 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:37,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:37,817 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130686558] [2021-08-27 11:31:37,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130686558] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:37,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840214235] [2021-08-27 11:31:37,818 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:31:37,818 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:37,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:37,819 INFO L229 MonitoredProcess]: Starting monitored process 43 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:37,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Waiting until timeout for monitored process [2021-08-27 11:31:39,582 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-08-27 11:31:39,582 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:39,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 43 conjunts are in the unsatisfiable core [2021-08-27 11:31:39,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:40,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4182 backedges. 0 proven. 4182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:40,237 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840214235] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:40,237 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:40,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43] total 43 [2021-08-27 11:31:40,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982122729] [2021-08-27 11:31:40,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2021-08-27 11:31:40,238 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:40,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2021-08-27 11:31:40,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-08-27 11:31:40,239 INFO L87 Difference]: Start difference. First operand 211 states and 211 transitions. Second operand has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:40,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:40,328 INFO L93 Difference]: Finished difference Result 218 states and 218 transitions. [2021-08-27 11:31:40,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2021-08-27 11:31:40,328 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 210 [2021-08-27 11:31:40,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:40,329 INFO L225 Difference]: With dead ends: 218 [2021-08-27 11:31:40,329 INFO L226 Difference]: Without dead ends: 217 [2021-08-27 11:31:40,330 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 776.8ms TimeCoverageRelationStatistics Valid=946, Invalid=946, Unknown=0, NotChecked=0, Total=1892 [2021-08-27 11:31:40,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2021-08-27 11:31:40,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 216. [2021-08-27 11:31:40,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.0046511627906978) internal successors, (216), 215 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:40,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 216 transitions. [2021-08-27 11:31:40,334 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 216 transitions. Word has length 210 [2021-08-27 11:31:40,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:40,334 INFO L470 AbstractCegarLoop]: Abstraction has 216 states and 216 transitions. [2021-08-27 11:31:40,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 4.883720930232558) internal successors, (210), 44 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:40,334 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 216 transitions. [2021-08-27 11:31:40,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2021-08-27 11:31:40,335 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:40,335 INFO L512 BasicCegarLoop]: trace histogram [43, 42, 42, 42, 42, 1, 1, 1, 1] [2021-08-27 11:31:40,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (43)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:40,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,43 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:40,549 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:40,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:40,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1486490843, now seen corresponding path program 42 times [2021-08-27 11:31:40,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:40,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612027938] [2021-08-27 11:31:40,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:40,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:40,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:41,396 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 0 proven. 4389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:41,396 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:41,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612027938] [2021-08-27 11:31:41,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612027938] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:41,396 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451969371] [2021-08-27 11:31:41,396 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:31:41,396 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:41,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:41,397 INFO L229 MonitoredProcess]: Starting monitored process 44 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:41,398 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Waiting until timeout for monitored process [2021-08-27 11:31:43,205 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-08-27 11:31:43,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:43,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 44 conjunts are in the unsatisfiable core [2021-08-27 11:31:43,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 4389 backedges. 0 proven. 4389 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:43,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451969371] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:43,823 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:43,823 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 44] total 44 [2021-08-27 11:31:43,823 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694884718] [2021-08-27 11:31:43,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-08-27 11:31:43,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:43,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-08-27 11:31:43,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-08-27 11:31:43,824 INFO L87 Difference]: Start difference. First operand 216 states and 216 transitions. Second operand has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:43,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:43,915 INFO L93 Difference]: Finished difference Result 223 states and 223 transitions. [2021-08-27 11:31:43,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-08-27 11:31:43,915 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2021-08-27 11:31:43,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:43,916 INFO L225 Difference]: With dead ends: 223 [2021-08-27 11:31:43,916 INFO L226 Difference]: Without dead ends: 222 [2021-08-27 11:31:43,918 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 734.0ms TimeCoverageRelationStatistics Valid=990, Invalid=990, Unknown=0, NotChecked=0, Total=1980 [2021-08-27 11:31:43,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2021-08-27 11:31:43,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 221. [2021-08-27 11:31:43,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 1.0045454545454546) internal successors, (221), 220 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:43,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 221 transitions. [2021-08-27 11:31:43,922 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 221 transitions. Word has length 215 [2021-08-27 11:31:43,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:43,922 INFO L470 AbstractCegarLoop]: Abstraction has 221 states and 221 transitions. [2021-08-27 11:31:43,922 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 4.886363636363637) internal successors, (215), 45 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:43,923 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 221 transitions. [2021-08-27 11:31:43,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2021-08-27 11:31:43,924 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:43,924 INFO L512 BasicCegarLoop]: trace histogram [44, 43, 43, 43, 43, 1, 1, 1, 1] [2021-08-27 11:31:43,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (44)] Ended with exit code 0 [2021-08-27 11:31:44,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable46 [2021-08-27 11:31:44,137 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:44,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:44,137 INFO L82 PathProgramCache]: Analyzing trace with hash 458639089, now seen corresponding path program 43 times [2021-08-27 11:31:44,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:44,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736263382] [2021-08-27 11:31:44,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:44,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:44,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:45,001 INFO L134 CoverageAnalysis]: Checked inductivity of 4601 backedges. 0 proven. 4601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:45,001 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:45,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736263382] [2021-08-27 11:31:45,001 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736263382] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:45,001 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149569631] [2021-08-27 11:31:45,001 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:31:45,001 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:45,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:45,002 INFO L229 MonitoredProcess]: Starting monitored process 45 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:45,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Waiting until timeout for monitored process [2021-08-27 11:31:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:46,870 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 45 conjunts are in the unsatisfiable core [2021-08-27 11:31:46,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:47,504 INFO L134 CoverageAnalysis]: Checked inductivity of 4601 backedges. 0 proven. 4601 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:47,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149569631] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:47,505 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:47,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 45] total 45 [2021-08-27 11:31:47,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373577057] [2021-08-27 11:31:47,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-08-27 11:31:47,505 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:47,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-08-27 11:31:47,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-08-27 11:31:47,506 INFO L87 Difference]: Start difference. First operand 221 states and 221 transitions. Second operand has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:47,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:47,596 INFO L93 Difference]: Finished difference Result 228 states and 228 transitions. [2021-08-27 11:31:47,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-08-27 11:31:47,596 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2021-08-27 11:31:47,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:47,597 INFO L225 Difference]: With dead ends: 228 [2021-08-27 11:31:47,597 INFO L226 Difference]: Without dead ends: 227 [2021-08-27 11:31:47,597 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 220 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 756.2ms TimeCoverageRelationStatistics Valid=1035, Invalid=1035, Unknown=0, NotChecked=0, Total=2070 [2021-08-27 11:31:47,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2021-08-27 11:31:47,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 226. [2021-08-27 11:31:47,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 1.0044444444444445) internal successors, (226), 225 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:47,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 226 transitions. [2021-08-27 11:31:47,601 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 226 transitions. Word has length 220 [2021-08-27 11:31:47,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:47,602 INFO L470 AbstractCegarLoop]: Abstraction has 226 states and 226 transitions. [2021-08-27 11:31:47,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 4.888888888888889) internal successors, (220), 46 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:47,602 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 226 transitions. [2021-08-27 11:31:47,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2021-08-27 11:31:47,603 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:47,603 INFO L512 BasicCegarLoop]: trace histogram [45, 44, 44, 44, 44, 1, 1, 1, 1] [2021-08-27 11:31:47,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (45)] Ended with exit code 0 [2021-08-27 11:31:47,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable47 [2021-08-27 11:31:47,809 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:47,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:47,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1682017627, now seen corresponding path program 44 times [2021-08-27 11:31:47,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:47,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686380087] [2021-08-27 11:31:47,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:47,810 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:48,713 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 0 proven. 4818 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:48,713 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:48,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686380087] [2021-08-27 11:31:48,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686380087] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:48,713 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912871214] [2021-08-27 11:31:48,714 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:31:48,714 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:48,714 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:48,714 INFO L229 MonitoredProcess]: Starting monitored process 46 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:48,715 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Waiting until timeout for monitored process [2021-08-27 11:31:50,653 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:31:50,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:50,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 46 conjunts are in the unsatisfiable core [2021-08-27 11:31:50,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:51,266 INFO L134 CoverageAnalysis]: Checked inductivity of 4818 backedges. 0 proven. 4818 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:51,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912871214] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:51,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:51,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 46 [2021-08-27 11:31:51,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1343770631] [2021-08-27 11:31:51,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2021-08-27 11:31:51,267 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:51,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2021-08-27 11:31:51,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-08-27 11:31:51,268 INFO L87 Difference]: Start difference. First operand 226 states and 226 transitions. Second operand has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:51,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:51,364 INFO L93 Difference]: Finished difference Result 233 states and 233 transitions. [2021-08-27 11:31:51,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-08-27 11:31:51,364 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 225 [2021-08-27 11:31:51,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:51,365 INFO L225 Difference]: With dead ends: 233 [2021-08-27 11:31:51,365 INFO L226 Difference]: Without dead ends: 232 [2021-08-27 11:31:51,365 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 225 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 791.0ms TimeCoverageRelationStatistics Valid=1081, Invalid=1081, Unknown=0, NotChecked=0, Total=2162 [2021-08-27 11:31:51,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2021-08-27 11:31:51,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 231. [2021-08-27 11:31:51,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 230 states have (on average 1.0043478260869565) internal successors, (231), 230 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:51,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 231 transitions. [2021-08-27 11:31:51,369 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 231 transitions. Word has length 225 [2021-08-27 11:31:51,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:51,370 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 231 transitions. [2021-08-27 11:31:51,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 46 states have (on average 4.891304347826087) internal successors, (225), 47 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:51,370 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 231 transitions. [2021-08-27 11:31:51,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2021-08-27 11:31:51,371 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:51,371 INFO L512 BasicCegarLoop]: trace histogram [46, 45, 45, 45, 45, 1, 1, 1, 1] [2021-08-27 11:31:51,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (46)] Ended with exit code 0 [2021-08-27 11:31:51,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable48 [2021-08-27 11:31:51,581 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:51,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:51,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1344178319, now seen corresponding path program 45 times [2021-08-27 11:31:51,582 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:51,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223407421] [2021-08-27 11:31:51,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:51,582 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:51,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:52,533 INFO L134 CoverageAnalysis]: Checked inductivity of 5040 backedges. 0 proven. 5040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:52,533 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:52,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223407421] [2021-08-27 11:31:52,533 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223407421] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:52,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236453144] [2021-08-27 11:31:52,533 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:31:52,534 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:52,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:52,534 INFO L229 MonitoredProcess]: Starting monitored process 47 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:52,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Waiting until timeout for monitored process [2021-08-27 11:31:54,660 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2021-08-27 11:31:54,660 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:54,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 47 conjunts are in the unsatisfiable core [2021-08-27 11:31:54,665 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:55,328 INFO L134 CoverageAnalysis]: Checked inductivity of 5040 backedges. 0 proven. 5040 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:55,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236453144] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:55,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:55,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 47 [2021-08-27 11:31:55,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758257902] [2021-08-27 11:31:55,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-08-27 11:31:55,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:55,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-08-27 11:31:55,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-08-27 11:31:55,329 INFO L87 Difference]: Start difference. First operand 231 states and 231 transitions. Second operand has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:55,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:55,427 INFO L93 Difference]: Finished difference Result 238 states and 238 transitions. [2021-08-27 11:31:55,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-08-27 11:31:55,427 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 230 [2021-08-27 11:31:55,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:55,428 INFO L225 Difference]: With dead ends: 238 [2021-08-27 11:31:55,429 INFO L226 Difference]: Without dead ends: 237 [2021-08-27 11:31:55,429 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 276 GetRequests, 230 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 831.4ms TimeCoverageRelationStatistics Valid=1128, Invalid=1128, Unknown=0, NotChecked=0, Total=2256 [2021-08-27 11:31:55,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-08-27 11:31:55,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 236. [2021-08-27 11:31:55,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 235 states have (on average 1.004255319148936) internal successors, (236), 235 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:55,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 236 transitions. [2021-08-27 11:31:55,433 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 236 transitions. Word has length 230 [2021-08-27 11:31:55,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:55,433 INFO L470 AbstractCegarLoop]: Abstraction has 236 states and 236 transitions. [2021-08-27 11:31:55,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 4.8936170212765955) internal successors, (230), 48 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:55,434 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 236 transitions. [2021-08-27 11:31:55,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-08-27 11:31:55,435 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:55,435 INFO L512 BasicCegarLoop]: trace histogram [47, 46, 46, 46, 46, 1, 1, 1, 1] [2021-08-27 11:31:55,462 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (47)] Ended with exit code 0 [2021-08-27 11:31:55,648 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49,47 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:55,649 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:55,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:55,649 INFO L82 PathProgramCache]: Analyzing trace with hash -383938011, now seen corresponding path program 46 times [2021-08-27 11:31:55,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:55,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673505540] [2021-08-27 11:31:55,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:55,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:55,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:31:56,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:56,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:31:56,620 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673505540] [2021-08-27 11:31:56,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673505540] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:56,621 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266236661] [2021-08-27 11:31:56,621 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:31:56,621 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:56,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:31:56,622 INFO L229 MonitoredProcess]: Starting monitored process 48 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:31:56,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Waiting until timeout for monitored process [2021-08-27 11:31:58,737 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:31:58,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:31:58,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 545 conjuncts, 48 conjunts are in the unsatisfiable core [2021-08-27 11:31:58,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:31:59,420 INFO L134 CoverageAnalysis]: Checked inductivity of 5267 backedges. 0 proven. 5267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:31:59,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266236661] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:31:59,421 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:31:59,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 48 [2021-08-27 11:31:59,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928886258] [2021-08-27 11:31:59,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-08-27 11:31:59,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:31:59,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-08-27 11:31:59,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-08-27 11:31:59,422 INFO L87 Difference]: Start difference. First operand 236 states and 236 transitions. Second operand has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:59,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:31:59,520 INFO L93 Difference]: Finished difference Result 243 states and 243 transitions. [2021-08-27 11:31:59,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-27 11:31:59,520 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 235 [2021-08-27 11:31:59,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:31:59,522 INFO L225 Difference]: With dead ends: 243 [2021-08-27 11:31:59,522 INFO L226 Difference]: Without dead ends: 242 [2021-08-27 11:31:59,522 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 845.2ms TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2021-08-27 11:31:59,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2021-08-27 11:31:59,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 241. [2021-08-27 11:31:59,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.0041666666666667) internal successors, (241), 240 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:59,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 241 transitions. [2021-08-27 11:31:59,526 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 241 transitions. Word has length 235 [2021-08-27 11:31:59,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:31:59,527 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 241 transitions. [2021-08-27 11:31:59,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 4.895833333333333) internal successors, (235), 49 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:31:59,527 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 241 transitions. [2021-08-27 11:31:59,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2021-08-27 11:31:59,558 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:31:59,558 INFO L512 BasicCegarLoop]: trace histogram [48, 47, 47, 47, 47, 1, 1, 1, 1] [2021-08-27 11:31:59,587 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (48)] Forceful destruction successful, exit code 0 [2021-08-27 11:31:59,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,48 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:31:59,771 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:31:59,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:31:59,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1500903439, now seen corresponding path program 47 times [2021-08-27 11:31:59,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:31:59,772 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052195322] [2021-08-27 11:31:59,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:31:59,772 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:31:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:00,774 INFO L134 CoverageAnalysis]: Checked inductivity of 5499 backedges. 0 proven. 5499 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:00,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:00,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052195322] [2021-08-27 11:32:00,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052195322] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:00,776 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72267841] [2021-08-27 11:32:00,776 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:32:00,776 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:00,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:00,777 INFO L229 MonitoredProcess]: Starting monitored process 49 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:00,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Waiting until timeout for monitored process [2021-08-27 11:32:03,012 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 48 check-sat command(s) [2021-08-27 11:32:03,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:03,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 49 conjunts are in the unsatisfiable core [2021-08-27 11:32:03,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 5499 backedges. 0 proven. 5499 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:03,663 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72267841] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:03,663 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:03,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49] total 49 [2021-08-27 11:32:03,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58176162] [2021-08-27 11:32:03,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-08-27 11:32:03,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:03,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-08-27 11:32:03,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-08-27 11:32:03,665 INFO L87 Difference]: Start difference. First operand 241 states and 241 transitions. Second operand has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:03,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:03,767 INFO L93 Difference]: Finished difference Result 248 states and 248 transitions. [2021-08-27 11:32:03,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-08-27 11:32:03,767 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 240 [2021-08-27 11:32:03,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:03,768 INFO L225 Difference]: With dead ends: 248 [2021-08-27 11:32:03,768 INFO L226 Difference]: Without dead ends: 247 [2021-08-27 11:32:03,768 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 886.9ms TimeCoverageRelationStatistics Valid=1225, Invalid=1225, Unknown=0, NotChecked=0, Total=2450 [2021-08-27 11:32:03,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-08-27 11:32:03,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 246. [2021-08-27 11:32:03,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.0040816326530613) internal successors, (246), 245 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:03,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 246 transitions. [2021-08-27 11:32:03,773 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 246 transitions. Word has length 240 [2021-08-27 11:32:03,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:03,773 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 246 transitions. [2021-08-27 11:32:03,773 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 49 states have (on average 4.8979591836734695) internal successors, (240), 50 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:03,773 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 246 transitions. [2021-08-27 11:32:03,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-08-27 11:32:03,774 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:03,775 INFO L512 BasicCegarLoop]: trace histogram [49, 48, 48, 48, 48, 1, 1, 1, 1] [2021-08-27 11:32:03,814 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (49)] Ended with exit code 0 [2021-08-27 11:32:03,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51,49 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:03,993 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:03,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:03,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1874547109, now seen corresponding path program 48 times [2021-08-27 11:32:03,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:03,994 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775007281] [2021-08-27 11:32:03,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:03,994 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:05,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5736 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:05,074 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:05,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775007281] [2021-08-27 11:32:05,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775007281] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:05,074 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919558225] [2021-08-27 11:32:05,074 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:32:05,075 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:05,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:05,075 INFO L229 MonitoredProcess]: Starting monitored process 50 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:05,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Waiting until timeout for monitored process [2021-08-27 11:32:07,428 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 49 check-sat command(s) [2021-08-27 11:32:07,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:07,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 567 conjuncts, 50 conjunts are in the unsatisfiable core [2021-08-27 11:32:07,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 5736 backedges. 0 proven. 5736 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:08,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919558225] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:08,081 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:08,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50] total 50 [2021-08-27 11:32:08,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239067] [2021-08-27 11:32:08,082 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2021-08-27 11:32:08,082 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:08,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2021-08-27 11:32:08,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-08-27 11:32:08,082 INFO L87 Difference]: Start difference. First operand 246 states and 246 transitions. Second operand has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:08,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:08,190 INFO L93 Difference]: Finished difference Result 253 states and 253 transitions. [2021-08-27 11:32:08,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2021-08-27 11:32:08,191 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2021-08-27 11:32:08,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:08,191 INFO L225 Difference]: With dead ends: 253 [2021-08-27 11:32:08,191 INFO L226 Difference]: Without dead ends: 252 [2021-08-27 11:32:08,192 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 294 GetRequests, 245 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 927.2ms TimeCoverageRelationStatistics Valid=1275, Invalid=1275, Unknown=0, NotChecked=0, Total=2550 [2021-08-27 11:32:08,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2021-08-27 11:32:08,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 251. [2021-08-27 11:32:08,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.004) internal successors, (251), 250 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:08,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 251 transitions. [2021-08-27 11:32:08,196 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 251 transitions. Word has length 245 [2021-08-27 11:32:08,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:08,196 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 251 transitions. [2021-08-27 11:32:08,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 50 states have (on average 4.9) internal successors, (245), 51 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:08,197 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 251 transitions. [2021-08-27 11:32:08,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2021-08-27 11:32:08,198 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:08,198 INFO L512 BasicCegarLoop]: trace histogram [50, 49, 49, 49, 49, 1, 1, 1, 1] [2021-08-27 11:32:08,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (50)] Forceful destruction successful, exit code 0 [2021-08-27 11:32:08,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 50 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2021-08-27 11:32:08,425 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:08,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:08,425 INFO L82 PathProgramCache]: Analyzing trace with hash -2112358287, now seen corresponding path program 49 times [2021-08-27 11:32:08,425 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:08,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322485976] [2021-08-27 11:32:08,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:08,425 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 5978 backedges. 0 proven. 5978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:09,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:09,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322485976] [2021-08-27 11:32:09,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322485976] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:09,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2070242449] [2021-08-27 11:32:09,526 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:32:09,526 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:09,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:09,527 INFO L229 MonitoredProcess]: Starting monitored process 51 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:09,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Waiting until timeout for monitored process [2021-08-27 11:32:11,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:11,997 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 51 conjunts are in the unsatisfiable core [2021-08-27 11:32:11,999 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:12,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5978 backedges. 0 proven. 5978 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:12,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2070242449] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:12,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:12,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51, 51] total 51 [2021-08-27 11:32:12,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228425670] [2021-08-27 11:32:12,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2021-08-27 11:32:12,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:12,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2021-08-27 11:32:12,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-08-27 11:32:12,643 INFO L87 Difference]: Start difference. First operand 251 states and 251 transitions. Second operand has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:12,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:12,749 INFO L93 Difference]: Finished difference Result 258 states and 258 transitions. [2021-08-27 11:32:12,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-27 11:32:12,750 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 250 [2021-08-27 11:32:12,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:12,750 INFO L225 Difference]: With dead ends: 258 [2021-08-27 11:32:12,751 INFO L226 Difference]: Without dead ends: 257 [2021-08-27 11:32:12,751 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 250 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 955.9ms TimeCoverageRelationStatistics Valid=1326, Invalid=1326, Unknown=0, NotChecked=0, Total=2652 [2021-08-27 11:32:12,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2021-08-27 11:32:12,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 256. [2021-08-27 11:32:12,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.003921568627451) internal successors, (256), 255 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:12,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 256 transitions. [2021-08-27 11:32:12,755 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 256 transitions. Word has length 250 [2021-08-27 11:32:12,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:12,755 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 256 transitions. [2021-08-27 11:32:12,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 51 states have (on average 4.901960784313726) internal successors, (250), 52 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 256 transitions. [2021-08-27 11:32:12,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2021-08-27 11:32:12,757 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:12,757 INFO L512 BasicCegarLoop]: trace histogram [51, 50, 50, 50, 50, 1, 1, 1, 1] [2021-08-27 11:32:12,782 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (51)] Ended with exit code 0 [2021-08-27 11:32:12,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable53 [2021-08-27 11:32:12,969 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:12,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:12,969 INFO L82 PathProgramCache]: Analyzing trace with hash 701477157, now seen corresponding path program 50 times [2021-08-27 11:32:12,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:12,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52940371] [2021-08-27 11:32:12,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:12,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:12,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:14,102 INFO L134 CoverageAnalysis]: Checked inductivity of 6225 backedges. 0 proven. 6225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:14,102 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:14,102 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52940371] [2021-08-27 11:32:14,103 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52940371] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:14,103 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836227154] [2021-08-27 11:32:14,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:32:14,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:14,103 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:14,106 INFO L229 MonitoredProcess]: Starting monitored process 52 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:14,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Waiting until timeout for monitored process [2021-08-27 11:32:16,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:32:16,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:16,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 52 conjunts are in the unsatisfiable core [2021-08-27 11:32:16,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:17,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6225 backedges. 0 proven. 6225 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:17,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836227154] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:17,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:17,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 52] total 52 [2021-08-27 11:32:17,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882746222] [2021-08-27 11:32:17,297 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-08-27 11:32:17,297 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:17,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-08-27 11:32:17,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-08-27 11:32:17,298 INFO L87 Difference]: Start difference. First operand 256 states and 256 transitions. Second operand has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:17,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:17,403 INFO L93 Difference]: Finished difference Result 263 states and 263 transitions. [2021-08-27 11:32:17,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-08-27 11:32:17,404 INFO L78 Accepts]: Start accepts. Automaton has has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2021-08-27 11:32:17,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:17,404 INFO L225 Difference]: With dead ends: 263 [2021-08-27 11:32:17,404 INFO L226 Difference]: Without dead ends: 262 [2021-08-27 11:32:17,405 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 306 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 987.7ms TimeCoverageRelationStatistics Valid=1378, Invalid=1378, Unknown=0, NotChecked=0, Total=2756 [2021-08-27 11:32:17,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2021-08-27 11:32:17,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 261. [2021-08-27 11:32:17,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 261 states, 260 states have (on average 1.0038461538461538) internal successors, (261), 260 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:17,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 261 states and 261 transitions. [2021-08-27 11:32:17,408 INFO L78 Accepts]: Start accepts. Automaton has 261 states and 261 transitions. Word has length 255 [2021-08-27 11:32:17,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:17,409 INFO L470 AbstractCegarLoop]: Abstraction has 261 states and 261 transitions. [2021-08-27 11:32:17,409 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 52 states have (on average 4.903846153846154) internal successors, (255), 53 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:17,409 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 261 transitions. [2021-08-27 11:32:17,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-08-27 11:32:17,410 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:17,410 INFO L512 BasicCegarLoop]: trace histogram [52, 51, 51, 51, 51, 1, 1, 1, 1] [2021-08-27 11:32:17,433 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (52)] Forceful destruction successful, exit code 0 [2021-08-27 11:32:17,610 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54,52 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:17,611 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:17,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:17,611 INFO L82 PathProgramCache]: Analyzing trace with hash -346863375, now seen corresponding path program 51 times [2021-08-27 11:32:17,611 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:17,611 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692928174] [2021-08-27 11:32:17,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:17,611 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:17,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:18,796 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 0 proven. 6477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:18,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:18,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692928174] [2021-08-27 11:32:18,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692928174] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:18,797 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [969501797] [2021-08-27 11:32:18,797 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:32:18,797 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:18,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:18,798 INFO L229 MonitoredProcess]: Starting monitored process 53 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:18,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Waiting until timeout for monitored process [2021-08-27 11:32:21,463 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 52 check-sat command(s) [2021-08-27 11:32:21,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:21,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 53 conjunts are in the unsatisfiable core [2021-08-27 11:32:21,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:22,188 INFO L134 CoverageAnalysis]: Checked inductivity of 6477 backedges. 0 proven. 6477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:22,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [969501797] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:22,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:22,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [53, 53] total 53 [2021-08-27 11:32:22,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609500243] [2021-08-27 11:32:22,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2021-08-27 11:32:22,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:22,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2021-08-27 11:32:22,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-08-27 11:32:22,190 INFO L87 Difference]: Start difference. First operand 261 states and 261 transitions. Second operand has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:22,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:22,303 INFO L93 Difference]: Finished difference Result 268 states and 268 transitions. [2021-08-27 11:32:22,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-08-27 11:32:22,304 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 260 [2021-08-27 11:32:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:22,305 INFO L225 Difference]: With dead ends: 268 [2021-08-27 11:32:22,305 INFO L226 Difference]: Without dead ends: 267 [2021-08-27 11:32:22,305 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 312 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1063.9ms TimeCoverageRelationStatistics Valid=1431, Invalid=1431, Unknown=0, NotChecked=0, Total=2862 [2021-08-27 11:32:22,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2021-08-27 11:32:22,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 266. [2021-08-27 11:32:22,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.0037735849056604) internal successors, (266), 265 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:22,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 266 transitions. [2021-08-27 11:32:22,308 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 266 transitions. Word has length 260 [2021-08-27 11:32:22,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:22,308 INFO L470 AbstractCegarLoop]: Abstraction has 266 states and 266 transitions. [2021-08-27 11:32:22,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 4.90566037735849) internal successors, (260), 54 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:22,308 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 266 transitions. [2021-08-27 11:32:22,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-08-27 11:32:22,310 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:22,310 INFO L512 BasicCegarLoop]: trace histogram [53, 52, 52, 52, 52, 1, 1, 1, 1] [2021-08-27 11:32:22,333 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (53)] Forceful destruction successful, exit code 0 [2021-08-27 11:32:22,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable55 [2021-08-27 11:32:22,513 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:22,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:22,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1416449883, now seen corresponding path program 52 times [2021-08-27 11:32:22,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:22,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817185206] [2021-08-27 11:32:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:22,513 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:22,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:23,707 INFO L134 CoverageAnalysis]: Checked inductivity of 6734 backedges. 0 proven. 6734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:23,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:23,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817185206] [2021-08-27 11:32:23,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817185206] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:23,707 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898034470] [2021-08-27 11:32:23,707 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:32:23,707 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:23,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:23,708 INFO L229 MonitoredProcess]: Starting monitored process 54 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:23,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Waiting until timeout for monitored process [2021-08-27 11:32:26,428 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:32:26,428 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:26,430 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 54 conjunts are in the unsatisfiable core [2021-08-27 11:32:26,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:27,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6734 backedges. 0 proven. 6734 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:27,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898034470] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:27,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:27,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 54 [2021-08-27 11:32:27,197 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101702409] [2021-08-27 11:32:27,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2021-08-27 11:32:27,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:27,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2021-08-27 11:32:27,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-08-27 11:32:27,199 INFO L87 Difference]: Start difference. First operand 266 states and 266 transitions. Second operand has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:27,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:27,332 INFO L93 Difference]: Finished difference Result 273 states and 273 transitions. [2021-08-27 11:32:27,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2021-08-27 11:32:27,339 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 265 [2021-08-27 11:32:27,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:27,339 INFO L225 Difference]: With dead ends: 273 [2021-08-27 11:32:27,340 INFO L226 Difference]: Without dead ends: 272 [2021-08-27 11:32:27,340 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 265 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1073.3ms TimeCoverageRelationStatistics Valid=1485, Invalid=1485, Unknown=0, NotChecked=0, Total=2970 [2021-08-27 11:32:27,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2021-08-27 11:32:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 271. [2021-08-27 11:32:27,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 1.0037037037037038) internal successors, (271), 270 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:27,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 271 transitions. [2021-08-27 11:32:27,345 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 271 transitions. Word has length 265 [2021-08-27 11:32:27,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:27,345 INFO L470 AbstractCegarLoop]: Abstraction has 271 states and 271 transitions. [2021-08-27 11:32:27,345 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 4.907407407407407) internal successors, (265), 55 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:27,346 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 271 transitions. [2021-08-27 11:32:27,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-08-27 11:32:27,347 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:27,347 INFO L512 BasicCegarLoop]: trace histogram [54, 53, 53, 53, 53, 1, 1, 1, 1] [2021-08-27 11:32:27,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (54)] Forceful destruction successful, exit code 0 [2021-08-27 11:32:27,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable56 [2021-08-27 11:32:27,573 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:27,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:27,573 INFO L82 PathProgramCache]: Analyzing trace with hash 822344049, now seen corresponding path program 53 times [2021-08-27 11:32:27,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:27,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587350920] [2021-08-27 11:32:27,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:27,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:27,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:28,815 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 0 proven. 6996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:28,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:28,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587350920] [2021-08-27 11:32:28,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587350920] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:28,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99243337] [2021-08-27 11:32:28,816 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:32:28,816 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:28,816 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:28,817 INFO L229 MonitoredProcess]: Starting monitored process 55 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:28,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Waiting until timeout for monitored process [2021-08-27 11:32:31,651 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 54 check-sat command(s) [2021-08-27 11:32:31,651 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:31,654 INFO L263 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 55 conjunts are in the unsatisfiable core [2021-08-27 11:32:31,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:32,416 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 0 proven. 6996 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:32,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99243337] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:32,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:32,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 55] total 55 [2021-08-27 11:32:32,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416348119] [2021-08-27 11:32:32,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2021-08-27 11:32:32,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:32,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2021-08-27 11:32:32,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-08-27 11:32:32,418 INFO L87 Difference]: Start difference. First operand 271 states and 271 transitions. Second operand has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:32,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:32,540 INFO L93 Difference]: Finished difference Result 278 states and 278 transitions. [2021-08-27 11:32:32,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-08-27 11:32:32,541 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 270 [2021-08-27 11:32:32,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:32,542 INFO L225 Difference]: With dead ends: 278 [2021-08-27 11:32:32,542 INFO L226 Difference]: Without dead ends: 277 [2021-08-27 11:32:32,542 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 324 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1115.2ms TimeCoverageRelationStatistics Valid=1540, Invalid=1540, Unknown=0, NotChecked=0, Total=3080 [2021-08-27 11:32:32,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2021-08-27 11:32:32,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 276. [2021-08-27 11:32:32,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 275 states have (on average 1.0036363636363637) internal successors, (276), 275 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:32,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 276 transitions. [2021-08-27 11:32:32,546 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 276 transitions. Word has length 270 [2021-08-27 11:32:32,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:32,546 INFO L470 AbstractCegarLoop]: Abstraction has 276 states and 276 transitions. [2021-08-27 11:32:32,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 55 states have (on average 4.909090909090909) internal successors, (270), 56 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:32,547 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 276 transitions. [2021-08-27 11:32:32,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2021-08-27 11:32:32,548 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:32,548 INFO L512 BasicCegarLoop]: trace histogram [55, 54, 54, 54, 54, 1, 1, 1, 1] [2021-08-27 11:32:32,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (55)] Forceful destruction successful, exit code 0 [2021-08-27 11:32:32,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57,55 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:32,777 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:32,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:32,777 INFO L82 PathProgramCache]: Analyzing trace with hash -1556328411, now seen corresponding path program 54 times [2021-08-27 11:32:32,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:32,777 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485920021] [2021-08-27 11:32:32,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:32,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:34,061 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 0 proven. 7263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:34,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:34,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485920021] [2021-08-27 11:32:34,062 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485920021] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:34,062 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73775973] [2021-08-27 11:32:34,062 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:32:34,062 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:34,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:34,063 INFO L229 MonitoredProcess]: Starting monitored process 56 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:34,063 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Waiting until timeout for monitored process [2021-08-27 11:32:37,028 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 55 check-sat command(s) [2021-08-27 11:32:37,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:37,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 56 conjunts are in the unsatisfiable core [2021-08-27 11:32:37,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:37,773 INFO L134 CoverageAnalysis]: Checked inductivity of 7263 backedges. 0 proven. 7263 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:37,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73775973] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:37,773 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:37,773 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 56] total 56 [2021-08-27 11:32:37,773 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843135019] [2021-08-27 11:32:37,774 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2021-08-27 11:32:37,774 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:37,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2021-08-27 11:32:37,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-08-27 11:32:37,774 INFO L87 Difference]: Start difference. First operand 276 states and 276 transitions. Second operand has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:37,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:37,895 INFO L93 Difference]: Finished difference Result 283 states and 283 transitions. [2021-08-27 11:32:37,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-08-27 11:32:37,896 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 275 [2021-08-27 11:32:37,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:37,896 INFO L225 Difference]: With dead ends: 283 [2021-08-27 11:32:37,896 INFO L226 Difference]: Without dead ends: 282 [2021-08-27 11:32:37,897 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 275 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1151.8ms TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2021-08-27 11:32:37,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2021-08-27 11:32:37,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 281. [2021-08-27 11:32:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.0035714285714286) internal successors, (281), 280 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 281 transitions. [2021-08-27 11:32:37,899 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 281 transitions. Word has length 275 [2021-08-27 11:32:37,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:37,900 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 281 transitions. [2021-08-27 11:32:37,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 56 states have (on average 4.910714285714286) internal successors, (275), 57 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:37,900 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 281 transitions. [2021-08-27 11:32:37,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2021-08-27 11:32:37,901 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:37,901 INFO L512 BasicCegarLoop]: trace histogram [56, 55, 55, 55, 55, 1, 1, 1, 1] [2021-08-27 11:32:37,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (56)] Forceful destruction successful, exit code 0 [2021-08-27 11:32:38,101 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58,56 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:38,102 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:38,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:38,102 INFO L82 PathProgramCache]: Analyzing trace with hash -940439055, now seen corresponding path program 55 times [2021-08-27 11:32:38,102 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:38,102 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107491616] [2021-08-27 11:32:38,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:38,102 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:39,430 INFO L134 CoverageAnalysis]: Checked inductivity of 7535 backedges. 0 proven. 7535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:39,431 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:39,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107491616] [2021-08-27 11:32:39,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107491616] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:39,431 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607873149] [2021-08-27 11:32:39,431 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:32:39,431 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:39,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:39,432 INFO L229 MonitoredProcess]: Starting monitored process 57 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:39,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Waiting until timeout for monitored process [2021-08-27 11:32:42,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:42,459 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 57 conjunts are in the unsatisfiable core [2021-08-27 11:32:42,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:43,179 INFO L134 CoverageAnalysis]: Checked inductivity of 7535 backedges. 0 proven. 7535 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:43,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607873149] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:43,180 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:43,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57] total 57 [2021-08-27 11:32:43,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736638004] [2021-08-27 11:32:43,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2021-08-27 11:32:43,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:43,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2021-08-27 11:32:43,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-08-27 11:32:43,181 INFO L87 Difference]: Start difference. First operand 281 states and 281 transitions. Second operand has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:43,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:43,309 INFO L93 Difference]: Finished difference Result 288 states and 288 transitions. [2021-08-27 11:32:43,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2021-08-27 11:32:43,309 INFO L78 Accepts]: Start accepts. Automaton has has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 280 [2021-08-27 11:32:43,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:43,310 INFO L225 Difference]: With dead ends: 288 [2021-08-27 11:32:43,310 INFO L226 Difference]: Without dead ends: 287 [2021-08-27 11:32:43,311 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 336 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1190.8ms TimeCoverageRelationStatistics Valid=1653, Invalid=1653, Unknown=0, NotChecked=0, Total=3306 [2021-08-27 11:32:43,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-08-27 11:32:43,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 286. [2021-08-27 11:32:43,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 1.0035087719298246) internal successors, (286), 285 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:43,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 286 transitions. [2021-08-27 11:32:43,313 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 286 transitions. Word has length 280 [2021-08-27 11:32:43,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:43,313 INFO L470 AbstractCegarLoop]: Abstraction has 286 states and 286 transitions. [2021-08-27 11:32:43,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 57 states have (on average 4.912280701754386) internal successors, (280), 58 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:43,314 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 286 transitions. [2021-08-27 11:32:43,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2021-08-27 11:32:43,315 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:43,315 INFO L512 BasicCegarLoop]: trace histogram [57, 56, 56, 56, 56, 1, 1, 1, 1] [2021-08-27 11:32:43,340 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (57)] Ended with exit code 0 [2021-08-27 11:32:43,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 57 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable59 [2021-08-27 11:32:43,516 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:43,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:43,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1493471141, now seen corresponding path program 56 times [2021-08-27 11:32:43,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:43,516 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739401833] [2021-08-27 11:32:43,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:43,516 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:43,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:44,903 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:44,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:44,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739401833] [2021-08-27 11:32:44,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739401833] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:44,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097329172] [2021-08-27 11:32:44,904 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:32:44,904 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:44,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:44,905 INFO L229 MonitoredProcess]: Starting monitored process 58 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:44,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Waiting until timeout for monitored process [2021-08-27 11:32:48,017 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:32:48,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:48,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 655 conjuncts, 58 conjunts are in the unsatisfiable core [2021-08-27 11:32:48,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:48,755 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 7812 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:48,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097329172] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:48,755 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:48,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58] total 58 [2021-08-27 11:32:48,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723842206] [2021-08-27 11:32:48,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2021-08-27 11:32:48,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:48,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2021-08-27 11:32:48,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-08-27 11:32:48,757 INFO L87 Difference]: Start difference. First operand 286 states and 286 transitions. Second operand has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:48,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:48,875 INFO L93 Difference]: Finished difference Result 293 states and 293 transitions. [2021-08-27 11:32:48,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-08-27 11:32:48,875 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 285 [2021-08-27 11:32:48,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:48,876 INFO L225 Difference]: With dead ends: 293 [2021-08-27 11:32:48,876 INFO L226 Difference]: Without dead ends: 292 [2021-08-27 11:32:48,877 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1258.0ms TimeCoverageRelationStatistics Valid=1711, Invalid=1711, Unknown=0, NotChecked=0, Total=3422 [2021-08-27 11:32:48,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2021-08-27 11:32:48,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 291. [2021-08-27 11:32:48,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 290 states have (on average 1.0034482758620689) internal successors, (291), 290 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:48,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 291 transitions. [2021-08-27 11:32:48,881 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 291 transitions. Word has length 285 [2021-08-27 11:32:48,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:48,881 INFO L470 AbstractCegarLoop]: Abstraction has 291 states and 291 transitions. [2021-08-27 11:32:48,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 4.913793103448276) internal successors, (285), 59 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:48,881 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 291 transitions. [2021-08-27 11:32:48,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2021-08-27 11:32:48,883 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:48,883 INFO L512 BasicCegarLoop]: trace histogram [58, 57, 57, 57, 57, 1, 1, 1, 1] [2021-08-27 11:32:48,914 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (58)] Ended with exit code 0 [2021-08-27 11:32:49,104 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60,58 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:49,105 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:49,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:49,105 INFO L82 PathProgramCache]: Analyzing trace with hash -890930575, now seen corresponding path program 57 times [2021-08-27 11:32:49,105 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:49,105 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761697353] [2021-08-27 11:32:49,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:49,106 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:49,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:50,542 INFO L134 CoverageAnalysis]: Checked inductivity of 8094 backedges. 0 proven. 8094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:50,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:50,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761697353] [2021-08-27 11:32:50,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761697353] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:50,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606502096] [2021-08-27 11:32:50,542 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:32:50,542 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:50,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:50,543 INFO L229 MonitoredProcess]: Starting monitored process 59 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:50,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Waiting until timeout for monitored process [2021-08-27 11:32:53,809 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 58 check-sat command(s) [2021-08-27 11:32:53,809 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:53,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 666 conjuncts, 59 conjunts are in the unsatisfiable core [2021-08-27 11:32:53,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:32:54,567 INFO L134 CoverageAnalysis]: Checked inductivity of 8094 backedges. 0 proven. 8094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:54,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606502096] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:54,567 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:32:54,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 59] total 59 [2021-08-27 11:32:54,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166282091] [2021-08-27 11:32:54,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2021-08-27 11:32:54,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:32:54,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2021-08-27 11:32:54,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-08-27 11:32:54,569 INFO L87 Difference]: Start difference. First operand 291 states and 291 transitions. Second operand has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:54,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:32:54,689 INFO L93 Difference]: Finished difference Result 298 states and 298 transitions. [2021-08-27 11:32:54,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2021-08-27 11:32:54,689 INFO L78 Accepts]: Start accepts. Automaton has has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2021-08-27 11:32:54,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:32:54,690 INFO L225 Difference]: With dead ends: 298 [2021-08-27 11:32:54,690 INFO L226 Difference]: Without dead ends: 297 [2021-08-27 11:32:54,691 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 348 GetRequests, 290 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1295.6ms TimeCoverageRelationStatistics Valid=1770, Invalid=1770, Unknown=0, NotChecked=0, Total=3540 [2021-08-27 11:32:54,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-08-27 11:32:54,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 296. [2021-08-27 11:32:54,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.0033898305084745) internal successors, (296), 295 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:54,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 296 transitions. [2021-08-27 11:32:54,696 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 296 transitions. Word has length 290 [2021-08-27 11:32:54,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:32:54,696 INFO L470 AbstractCegarLoop]: Abstraction has 296 states and 296 transitions. [2021-08-27 11:32:54,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 59 states have (on average 4.915254237288136) internal successors, (290), 60 states have internal predecessors, (290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:32:54,696 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 296 transitions. [2021-08-27 11:32:54,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2021-08-27 11:32:54,698 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:32:54,698 INFO L512 BasicCegarLoop]: trace histogram [59, 58, 58, 58, 58, 1, 1, 1, 1] [2021-08-27 11:32:54,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (59)] Forceful destruction successful, exit code 0 [2021-08-27 11:32:54,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 59 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable61 [2021-08-27 11:32:54,913 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:32:54,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:32:54,913 INFO L82 PathProgramCache]: Analyzing trace with hash 790851365, now seen corresponding path program 58 times [2021-08-27 11:32:54,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:32:54,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123685987] [2021-08-27 11:32:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:32:54,913 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:32:55,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:32:56,477 INFO L134 CoverageAnalysis]: Checked inductivity of 8381 backedges. 0 proven. 8381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:32:56,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:32:56,477 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123685987] [2021-08-27 11:32:56,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123685987] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:32:56,478 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762004535] [2021-08-27 11:32:56,478 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:32:56,478 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:32:56,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:32:56,478 INFO L229 MonitoredProcess]: Starting monitored process 60 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:32:56,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Waiting until timeout for monitored process [2021-08-27 11:32:59,788 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:32:59,788 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:32:59,791 INFO L263 TraceCheckSpWp]: Trace formula consists of 677 conjuncts, 60 conjunts are in the unsatisfiable core [2021-08-27 11:32:59,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:33:00,623 INFO L134 CoverageAnalysis]: Checked inductivity of 8381 backedges. 0 proven. 8381 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:00,623 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762004535] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:00,623 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:33:00,623 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 60] total 60 [2021-08-27 11:33:00,624 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331642436] [2021-08-27 11:33:00,624 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-08-27 11:33:00,624 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:33:00,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-08-27 11:33:00,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-08-27 11:33:00,625 INFO L87 Difference]: Start difference. First operand 296 states and 296 transitions. Second operand has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:00,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:33:00,774 INFO L93 Difference]: Finished difference Result 303 states and 303 transitions. [2021-08-27 11:33:00,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-08-27 11:33:00,775 INFO L78 Accepts]: Start accepts. Automaton has has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 295 [2021-08-27 11:33:00,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:33:00,776 INFO L225 Difference]: With dead ends: 303 [2021-08-27 11:33:00,776 INFO L226 Difference]: Without dead ends: 302 [2021-08-27 11:33:00,776 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1360.7ms TimeCoverageRelationStatistics Valid=1830, Invalid=1830, Unknown=0, NotChecked=0, Total=3660 [2021-08-27 11:33:00,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2021-08-27 11:33:00,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 301. [2021-08-27 11:33:00,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 300 states have (on average 1.0033333333333334) internal successors, (301), 300 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:00,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 301 transitions. [2021-08-27 11:33:00,779 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 301 transitions. Word has length 295 [2021-08-27 11:33:00,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:33:00,780 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 301 transitions. [2021-08-27 11:33:00,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 60 states have (on average 4.916666666666667) internal successors, (295), 61 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:00,780 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 301 transitions. [2021-08-27 11:33:00,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 301 [2021-08-27 11:33:00,781 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:33:00,781 INFO L512 BasicCegarLoop]: trace histogram [60, 59, 59, 59, 59, 1, 1, 1, 1] [2021-08-27 11:33:00,806 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (60)] Ended with exit code 0 [2021-08-27 11:33:00,981 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 60 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable62 [2021-08-27 11:33:00,982 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:33:00,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:33:00,982 INFO L82 PathProgramCache]: Analyzing trace with hash 2057718513, now seen corresponding path program 59 times [2021-08-27 11:33:00,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:33:00,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137957427] [2021-08-27 11:33:00,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:33:00,982 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:33:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:02,502 INFO L134 CoverageAnalysis]: Checked inductivity of 8673 backedges. 0 proven. 8673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:02,502 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:33:02,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137957427] [2021-08-27 11:33:02,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137957427] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:02,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9700391] [2021-08-27 11:33:02,502 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:33:02,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:02,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:33:02,503 INFO L229 MonitoredProcess]: Starting monitored process 61 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:33:02,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Waiting until timeout for monitored process [2021-08-27 11:33:06,030 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 60 check-sat command(s) [2021-08-27 11:33:06,031 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:33:06,034 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 61 conjunts are in the unsatisfiable core [2021-08-27 11:33:06,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:33:06,813 INFO L134 CoverageAnalysis]: Checked inductivity of 8673 backedges. 0 proven. 8673 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:06,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9700391] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:06,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:33:06,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 61] total 61 [2021-08-27 11:33:06,814 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115275475] [2021-08-27 11:33:06,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-08-27 11:33:06,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:33:06,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-08-27 11:33:06,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-08-27 11:33:06,815 INFO L87 Difference]: Start difference. First operand 301 states and 301 transitions. Second operand has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:06,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:33:06,945 INFO L93 Difference]: Finished difference Result 308 states and 308 transitions. [2021-08-27 11:33:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-08-27 11:33:06,946 INFO L78 Accepts]: Start accepts. Automaton has has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 300 [2021-08-27 11:33:06,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:33:06,947 INFO L225 Difference]: With dead ends: 308 [2021-08-27 11:33:06,947 INFO L226 Difference]: Without dead ends: 307 [2021-08-27 11:33:06,947 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 360 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1368.2ms TimeCoverageRelationStatistics Valid=1891, Invalid=1891, Unknown=0, NotChecked=0, Total=3782 [2021-08-27 11:33:06,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-08-27 11:33:06,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 306. [2021-08-27 11:33:06,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 305 states have (on average 1.0032786885245901) internal successors, (306), 305 states have internal predecessors, (306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:06,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 306 transitions. [2021-08-27 11:33:06,951 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 306 transitions. Word has length 300 [2021-08-27 11:33:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:33:06,952 INFO L470 AbstractCegarLoop]: Abstraction has 306 states and 306 transitions. [2021-08-27 11:33:06,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 61 states have (on average 4.918032786885246) internal successors, (300), 62 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:06,952 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 306 transitions. [2021-08-27 11:33:06,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 306 [2021-08-27 11:33:06,953 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:33:06,954 INFO L512 BasicCegarLoop]: trace histogram [61, 60, 60, 60, 60, 1, 1, 1, 1] [2021-08-27 11:33:06,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (61)] Forceful destruction successful, exit code 0 [2021-08-27 11:33:07,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63,61 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:07,165 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:33:07,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:33:07,165 INFO L82 PathProgramCache]: Analyzing trace with hash 567340709, now seen corresponding path program 60 times [2021-08-27 11:33:07,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:33:07,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588576840] [2021-08-27 11:33:07,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:33:07,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:33:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:08,730 INFO L134 CoverageAnalysis]: Checked inductivity of 8970 backedges. 0 proven. 8970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:08,730 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:33:08,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588576840] [2021-08-27 11:33:08,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588576840] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:08,731 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1655592898] [2021-08-27 11:33:08,731 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:33:08,731 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:08,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:33:08,732 INFO L229 MonitoredProcess]: Starting monitored process 62 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:33:08,732 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Waiting until timeout for monitored process [2021-08-27 11:33:12,336 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2021-08-27 11:33:12,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:33:12,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 699 conjuncts, 62 conjunts are in the unsatisfiable core [2021-08-27 11:33:12,341 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:33:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 8970 backedges. 0 proven. 8970 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:13,216 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1655592898] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:13,216 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:33:13,216 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [62, 62] total 62 [2021-08-27 11:33:13,216 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971762032] [2021-08-27 11:33:13,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-08-27 11:33:13,216 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:33:13,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-08-27 11:33:13,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-08-27 11:33:13,217 INFO L87 Difference]: Start difference. First operand 306 states and 306 transitions. Second operand has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:13,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:33:13,351 INFO L93 Difference]: Finished difference Result 313 states and 313 transitions. [2021-08-27 11:33:13,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-27 11:33:13,352 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 305 [2021-08-27 11:33:13,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:33:13,353 INFO L225 Difference]: With dead ends: 313 [2021-08-27 11:33:13,353 INFO L226 Difference]: Without dead ends: 312 [2021-08-27 11:33:13,353 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 305 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1421.6ms TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2021-08-27 11:33:13,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2021-08-27 11:33:13,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 311. [2021-08-27 11:33:13,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 310 states have (on average 1.0032258064516129) internal successors, (311), 310 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:13,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 311 transitions. [2021-08-27 11:33:13,357 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 311 transitions. Word has length 305 [2021-08-27 11:33:13,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:33:13,358 INFO L470 AbstractCegarLoop]: Abstraction has 311 states and 311 transitions. [2021-08-27 11:33:13,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 62 states have (on average 4.919354838709677) internal successors, (305), 63 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:13,358 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 311 transitions. [2021-08-27 11:33:13,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-08-27 11:33:13,359 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:33:13,360 INFO L512 BasicCegarLoop]: trace histogram [62, 61, 61, 61, 61, 1, 1, 1, 1] [2021-08-27 11:33:13,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (62)] Ended with exit code 0 [2021-08-27 11:33:13,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64,62 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:13,575 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:33:13,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:33:13,575 INFO L82 PathProgramCache]: Analyzing trace with hash -1107526799, now seen corresponding path program 61 times [2021-08-27 11:33:13,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:33:13,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321106602] [2021-08-27 11:33:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:33:13,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:33:13,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 9272 backedges. 0 proven. 9272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:15,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:33:15,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321106602] [2021-08-27 11:33:15,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321106602] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:15,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [253854449] [2021-08-27 11:33:15,176 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:33:15,176 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:15,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:33:15,178 INFO L229 MonitoredProcess]: Starting monitored process 63 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:33:15,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Waiting until timeout for monitored process [2021-08-27 11:33:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:18,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 63 conjunts are in the unsatisfiable core [2021-08-27 11:33:18,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:33:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 9272 backedges. 0 proven. 9272 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:19,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [253854449] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:19,848 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:33:19,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 63] total 63 [2021-08-27 11:33:19,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172121053] [2021-08-27 11:33:19,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2021-08-27 11:33:19,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:33:19,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2021-08-27 11:33:19,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-08-27 11:33:19,849 INFO L87 Difference]: Start difference. First operand 311 states and 311 transitions. Second operand has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:19,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:33:19,987 INFO L93 Difference]: Finished difference Result 318 states and 318 transitions. [2021-08-27 11:33:19,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-08-27 11:33:19,988 INFO L78 Accepts]: Start accepts. Automaton has has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 310 [2021-08-27 11:33:19,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:33:19,989 INFO L225 Difference]: With dead ends: 318 [2021-08-27 11:33:19,989 INFO L226 Difference]: Without dead ends: 317 [2021-08-27 11:33:19,989 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 310 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1452.5ms TimeCoverageRelationStatistics Valid=2016, Invalid=2016, Unknown=0, NotChecked=0, Total=4032 [2021-08-27 11:33:19,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-08-27 11:33:19,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 316. [2021-08-27 11:33:19,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 315 states have (on average 1.0031746031746032) internal successors, (316), 315 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:19,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 316 transitions. [2021-08-27 11:33:19,992 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 316 transitions. Word has length 310 [2021-08-27 11:33:19,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:33:19,992 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 316 transitions. [2021-08-27 11:33:19,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 63 states have (on average 4.920634920634921) internal successors, (310), 64 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:19,993 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 316 transitions. [2021-08-27 11:33:19,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 316 [2021-08-27 11:33:19,994 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:33:19,994 INFO L512 BasicCegarLoop]: trace histogram [63, 62, 62, 62, 62, 1, 1, 1, 1] [2021-08-27 11:33:20,020 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (63)] Ended with exit code 0 [2021-08-27 11:33:20,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable65 [2021-08-27 11:33:20,195 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:33:20,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:33:20,195 INFO L82 PathProgramCache]: Analyzing trace with hash 1195707941, now seen corresponding path program 62 times [2021-08-27 11:33:20,195 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:33:20,195 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119097084] [2021-08-27 11:33:20,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:33:20,196 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:33:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 9579 backedges. 0 proven. 9579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:21,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:33:21,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119097084] [2021-08-27 11:33:21,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119097084] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:21,840 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162585501] [2021-08-27 11:33:21,840 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:33:21,840 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:21,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:33:21,841 INFO L229 MonitoredProcess]: Starting monitored process 64 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:33:21,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Waiting until timeout for monitored process [2021-08-27 11:33:25,668 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:33:25,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:33:25,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 721 conjuncts, 64 conjunts are in the unsatisfiable core [2021-08-27 11:33:25,673 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:33:26,490 INFO L134 CoverageAnalysis]: Checked inductivity of 9579 backedges. 0 proven. 9579 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:26,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162585501] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:26,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:33:26,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 64] total 64 [2021-08-27 11:33:26,490 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076802091] [2021-08-27 11:33:26,491 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2021-08-27 11:33:26,491 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:33:26,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2021-08-27 11:33:26,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-08-27 11:33:26,492 INFO L87 Difference]: Start difference. First operand 316 states and 316 transitions. Second operand has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:26,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:33:26,668 INFO L93 Difference]: Finished difference Result 323 states and 323 transitions. [2021-08-27 11:33:26,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2021-08-27 11:33:26,668 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 315 [2021-08-27 11:33:26,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:33:26,670 INFO L225 Difference]: With dead ends: 323 [2021-08-27 11:33:26,670 INFO L226 Difference]: Without dead ends: 322 [2021-08-27 11:33:26,670 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 378 GetRequests, 315 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1495.2ms TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2021-08-27 11:33:26,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2021-08-27 11:33:26,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 321. [2021-08-27 11:33:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 320 states have (on average 1.003125) internal successors, (321), 320 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 321 transitions. [2021-08-27 11:33:26,675 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 321 transitions. Word has length 315 [2021-08-27 11:33:26,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:33:26,675 INFO L470 AbstractCegarLoop]: Abstraction has 321 states and 321 transitions. [2021-08-27 11:33:26,675 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 4.921875) internal successors, (315), 65 states have internal predecessors, (315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:26,675 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 321 transitions. [2021-08-27 11:33:26,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2021-08-27 11:33:26,677 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:33:26,677 INFO L512 BasicCegarLoop]: trace histogram [64, 63, 63, 63, 63, 1, 1, 1, 1] [2021-08-27 11:33:26,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (64)] Forceful destruction successful, exit code 0 [2021-08-27 11:33:26,904 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 64 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable66 [2021-08-27 11:33:26,905 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:33:26,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:33:26,905 INFO L82 PathProgramCache]: Analyzing trace with hash -1582298127, now seen corresponding path program 63 times [2021-08-27 11:33:26,905 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:33:26,905 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561102889] [2021-08-27 11:33:26,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:33:26,905 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:33:26,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:28,639 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:28,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:33:28,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561102889] [2021-08-27 11:33:28,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561102889] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:28,640 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2093163052] [2021-08-27 11:33:28,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:33:28,640 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:28,640 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:33:28,641 INFO L229 MonitoredProcess]: Starting monitored process 65 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:33:28,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Waiting until timeout for monitored process [2021-08-27 11:33:32,626 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 64 check-sat command(s) [2021-08-27 11:33:32,627 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:33:32,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 732 conjuncts, 65 conjunts are in the unsatisfiable core [2021-08-27 11:33:32,631 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:33:33,445 INFO L134 CoverageAnalysis]: Checked inductivity of 9891 backedges. 0 proven. 9891 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:33,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2093163052] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:33,446 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:33:33,446 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65] total 65 [2021-08-27 11:33:33,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281339509] [2021-08-27 11:33:33,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2021-08-27 11:33:33,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:33:33,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2021-08-27 11:33:33,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-08-27 11:33:33,447 INFO L87 Difference]: Start difference. First operand 321 states and 321 transitions. Second operand has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:33,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:33:33,587 INFO L93 Difference]: Finished difference Result 328 states and 328 transitions. [2021-08-27 11:33:33,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-08-27 11:33:33,588 INFO L78 Accepts]: Start accepts. Automaton has has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 320 [2021-08-27 11:33:33,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:33:33,588 INFO L225 Difference]: With dead ends: 328 [2021-08-27 11:33:33,589 INFO L226 Difference]: Without dead ends: 327 [2021-08-27 11:33:33,589 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 320 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1568.3ms TimeCoverageRelationStatistics Valid=2145, Invalid=2145, Unknown=0, NotChecked=0, Total=4290 [2021-08-27 11:33:33,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2021-08-27 11:33:33,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 326. [2021-08-27 11:33:33,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 1.003076923076923) internal successors, (326), 325 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:33,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 326 transitions. [2021-08-27 11:33:33,593 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 326 transitions. Word has length 320 [2021-08-27 11:33:33,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:33:33,593 INFO L470 AbstractCegarLoop]: Abstraction has 326 states and 326 transitions. [2021-08-27 11:33:33,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 65 states have (on average 4.923076923076923) internal successors, (320), 66 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:33,594 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 326 transitions. [2021-08-27 11:33:33,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-08-27 11:33:33,595 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:33:33,595 INFO L512 BasicCegarLoop]: trace histogram [65, 64, 64, 64, 64, 1, 1, 1, 1] [2021-08-27 11:33:33,633 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (65)] Forceful destruction successful, exit code 0 [2021-08-27 11:33:33,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67,65 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:33,809 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:33:33,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:33:33,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1337445797, now seen corresponding path program 64 times [2021-08-27 11:33:33,809 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:33:33,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212887871] [2021-08-27 11:33:33,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:33:33,809 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:33:33,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 10208 backedges. 0 proven. 10208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:35,597 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:33:35,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212887871] [2021-08-27 11:33:35,597 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212887871] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:35,597 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311878400] [2021-08-27 11:33:35,598 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:33:35,598 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:35,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:33:35,605 INFO L229 MonitoredProcess]: Starting monitored process 66 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:33:35,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Waiting until timeout for monitored process [2021-08-27 11:33:39,637 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:33:39,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:33:39,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 743 conjuncts, 66 conjunts are in the unsatisfiable core [2021-08-27 11:33:39,642 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:33:40,486 INFO L134 CoverageAnalysis]: Checked inductivity of 10208 backedges. 0 proven. 10208 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:40,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311878400] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:40,486 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:33:40,487 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 66] total 66 [2021-08-27 11:33:40,487 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13506589] [2021-08-27 11:33:40,487 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-08-27 11:33:40,487 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:33:40,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-08-27 11:33:40,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-08-27 11:33:40,488 INFO L87 Difference]: Start difference. First operand 326 states and 326 transitions. Second operand has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:40,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:33:40,655 INFO L93 Difference]: Finished difference Result 333 states and 333 transitions. [2021-08-27 11:33:40,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-08-27 11:33:40,655 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2021-08-27 11:33:40,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:33:40,656 INFO L225 Difference]: With dead ends: 333 [2021-08-27 11:33:40,656 INFO L226 Difference]: Without dead ends: 332 [2021-08-27 11:33:40,657 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1621.7ms TimeCoverageRelationStatistics Valid=2211, Invalid=2211, Unknown=0, NotChecked=0, Total=4422 [2021-08-27 11:33:40,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2021-08-27 11:33:40,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 331. [2021-08-27 11:33:40,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 330 states have (on average 1.003030303030303) internal successors, (331), 330 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:40,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 331 transitions. [2021-08-27 11:33:40,660 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 331 transitions. Word has length 325 [2021-08-27 11:33:40,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:33:40,660 INFO L470 AbstractCegarLoop]: Abstraction has 331 states and 331 transitions. [2021-08-27 11:33:40,660 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 4.924242424242424) internal successors, (325), 67 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:40,660 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 331 transitions. [2021-08-27 11:33:40,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 331 [2021-08-27 11:33:40,661 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:33:40,661 INFO L512 BasicCegarLoop]: trace histogram [66, 65, 65, 65, 65, 1, 1, 1, 1] [2021-08-27 11:33:40,689 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (66)] Ended with exit code 0 [2021-08-27 11:33:40,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable68 [2021-08-27 11:33:40,862 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:33:40,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:33:40,862 INFO L82 PathProgramCache]: Analyzing trace with hash -662111119, now seen corresponding path program 65 times [2021-08-27 11:33:40,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:33:40,863 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989910727] [2021-08-27 11:33:40,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:33:40,863 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:33:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:42,640 INFO L134 CoverageAnalysis]: Checked inductivity of 10530 backedges. 0 proven. 10530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:42,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:33:42,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989910727] [2021-08-27 11:33:42,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989910727] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:42,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416785897] [2021-08-27 11:33:42,641 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:33:42,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:42,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:33:42,642 INFO L229 MonitoredProcess]: Starting monitored process 67 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:33:42,642 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Waiting until timeout for monitored process [2021-08-27 11:33:46,915 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 66 check-sat command(s) [2021-08-27 11:33:46,915 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:33:46,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 67 conjunts are in the unsatisfiable core [2021-08-27 11:33:46,920 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:33:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 10530 backedges. 0 proven. 10530 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:47,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416785897] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:47,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:33:47,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 67] total 67 [2021-08-27 11:33:47,792 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104501944] [2021-08-27 11:33:47,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2021-08-27 11:33:47,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:33:47,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2021-08-27 11:33:47,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-08-27 11:33:47,794 INFO L87 Difference]: Start difference. First operand 331 states and 331 transitions. Second operand has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:47,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:33:47,944 INFO L93 Difference]: Finished difference Result 338 states and 338 transitions. [2021-08-27 11:33:47,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2021-08-27 11:33:47,944 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 330 [2021-08-27 11:33:47,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:33:47,945 INFO L225 Difference]: With dead ends: 338 [2021-08-27 11:33:47,945 INFO L226 Difference]: Without dead ends: 337 [2021-08-27 11:33:47,946 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 330 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1627.4ms TimeCoverageRelationStatistics Valid=2278, Invalid=2278, Unknown=0, NotChecked=0, Total=4556 [2021-08-27 11:33:47,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2021-08-27 11:33:47,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 336. [2021-08-27 11:33:47,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 335 states have (on average 1.0029850746268656) internal successors, (336), 335 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:47,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 336 transitions. [2021-08-27 11:33:47,949 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 336 transitions. Word has length 330 [2021-08-27 11:33:47,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:33:47,949 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 336 transitions. [2021-08-27 11:33:47,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 67 states have (on average 4.925373134328358) internal successors, (330), 68 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:47,949 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 336 transitions. [2021-08-27 11:33:47,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2021-08-27 11:33:47,950 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:33:47,950 INFO L512 BasicCegarLoop]: trace histogram [67, 66, 66, 66, 66, 1, 1, 1, 1] [2021-08-27 11:33:47,978 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (67)] Ended with exit code 0 [2021-08-27 11:33:48,151 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable69 [2021-08-27 11:33:48,151 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:33:48,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:33:48,151 INFO L82 PathProgramCache]: Analyzing trace with hash 90254629, now seen corresponding path program 66 times [2021-08-27 11:33:48,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:33:48,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154093125] [2021-08-27 11:33:48,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:33:48,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:33:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:50,012 INFO L134 CoverageAnalysis]: Checked inductivity of 10857 backedges. 0 proven. 10857 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:50,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:33:50,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154093125] [2021-08-27 11:33:50,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154093125] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:50,013 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2088870588] [2021-08-27 11:33:50,013 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:33:50,013 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:50,013 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:33:50,014 INFO L229 MonitoredProcess]: Starting monitored process 68 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:33:50,016 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Waiting until timeout for monitored process [2021-08-27 11:33:54,432 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 67 check-sat command(s) [2021-08-27 11:33:54,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:33:54,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 68 conjunts are in the unsatisfiable core [2021-08-27 11:33:54,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:33:55,301 INFO L134 CoverageAnalysis]: Checked inductivity of 10857 backedges. 0 proven. 10857 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:55,302 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2088870588] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:55,302 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:33:55,302 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [68, 68] total 68 [2021-08-27 11:33:55,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307585961] [2021-08-27 11:33:55,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2021-08-27 11:33:55,302 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:33:55,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2021-08-27 11:33:55,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-08-27 11:33:55,303 INFO L87 Difference]: Start difference. First operand 336 states and 336 transitions. Second operand has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:55,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:33:55,492 INFO L93 Difference]: Finished difference Result 343 states and 343 transitions. [2021-08-27 11:33:55,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-08-27 11:33:55,493 INFO L78 Accepts]: Start accepts. Automaton has has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 335 [2021-08-27 11:33:55,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:33:55,494 INFO L225 Difference]: With dead ends: 343 [2021-08-27 11:33:55,494 INFO L226 Difference]: Without dead ends: 342 [2021-08-27 11:33:55,495 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 335 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1691.1ms TimeCoverageRelationStatistics Valid=2346, Invalid=2346, Unknown=0, NotChecked=0, Total=4692 [2021-08-27 11:33:55,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-08-27 11:33:55,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 341. [2021-08-27 11:33:55,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.0029411764705882) internal successors, (341), 340 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:55,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 341 transitions. [2021-08-27 11:33:55,499 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 341 transitions. Word has length 335 [2021-08-27 11:33:55,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:33:55,500 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 341 transitions. [2021-08-27 11:33:55,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 68 states have (on average 4.926470588235294) internal successors, (335), 69 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:33:55,500 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 341 transitions. [2021-08-27 11:33:55,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2021-08-27 11:33:55,501 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:33:55,502 INFO L512 BasicCegarLoop]: trace histogram [68, 67, 67, 67, 67, 1, 1, 1, 1] [2021-08-27 11:33:55,543 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (68)] Forceful destruction successful, exit code 0 [2021-08-27 11:33:55,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70,68 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:55,729 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:33:55,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:33:55,729 INFO L82 PathProgramCache]: Analyzing trace with hash 995052785, now seen corresponding path program 67 times [2021-08-27 11:33:55,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:33:55,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840659916] [2021-08-27 11:33:55,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:33:55,729 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:33:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:33:57,698 INFO L134 CoverageAnalysis]: Checked inductivity of 11189 backedges. 0 proven. 11189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:33:57,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:33:57,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840659916] [2021-08-27 11:33:57,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840659916] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:33:57,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578266617] [2021-08-27 11:33:57,698 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:33:57,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:33:57,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:33:57,699 INFO L229 MonitoredProcess]: Starting monitored process 69 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:33:57,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Waiting until timeout for monitored process [2021-08-27 11:34:02,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:34:02,126 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 69 conjunts are in the unsatisfiable core [2021-08-27 11:34:02,128 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:34:03,048 INFO L134 CoverageAnalysis]: Checked inductivity of 11189 backedges. 0 proven. 11189 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:03,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578266617] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:03,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:34:03,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [69, 69] total 69 [2021-08-27 11:34:03,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337058589] [2021-08-27 11:34:03,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-08-27 11:34:03,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:34:03,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-08-27 11:34:03,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-08-27 11:34:03,050 INFO L87 Difference]: Start difference. First operand 341 states and 341 transitions. Second operand has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:03,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:34:03,205 INFO L93 Difference]: Finished difference Result 348 states and 348 transitions. [2021-08-27 11:34:03,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2021-08-27 11:34:03,205 INFO L78 Accepts]: Start accepts. Automaton has has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 340 [2021-08-27 11:34:03,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:34:03,206 INFO L225 Difference]: With dead ends: 348 [2021-08-27 11:34:03,206 INFO L226 Difference]: Without dead ends: 347 [2021-08-27 11:34:03,206 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 408 GetRequests, 340 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1732.9ms TimeCoverageRelationStatistics Valid=2415, Invalid=2415, Unknown=0, NotChecked=0, Total=4830 [2021-08-27 11:34:03,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2021-08-27 11:34:03,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 346. [2021-08-27 11:34:03,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 1.0028985507246377) internal successors, (346), 345 states have internal predecessors, (346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:03,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 346 transitions. [2021-08-27 11:34:03,209 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 346 transitions. Word has length 340 [2021-08-27 11:34:03,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:34:03,210 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 346 transitions. [2021-08-27 11:34:03,210 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 69 states have (on average 4.927536231884058) internal successors, (340), 70 states have internal predecessors, (340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:03,210 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 346 transitions. [2021-08-27 11:34:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2021-08-27 11:34:03,211 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:34:03,211 INFO L512 BasicCegarLoop]: trace histogram [69, 68, 68, 68, 68, 1, 1, 1, 1] [2021-08-27 11:34:03,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (69)] Forceful destruction successful, exit code 0 [2021-08-27 11:34:03,411 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable71 [2021-08-27 11:34:03,412 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:34:03,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:34:03,412 INFO L82 PathProgramCache]: Analyzing trace with hash -864473947, now seen corresponding path program 68 times [2021-08-27 11:34:03,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:34:03,412 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990906074] [2021-08-27 11:34:03,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:34:03,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:34:03,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:34:05,361 INFO L134 CoverageAnalysis]: Checked inductivity of 11526 backedges. 0 proven. 11526 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:05,361 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:34:05,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990906074] [2021-08-27 11:34:05,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990906074] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:05,362 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [940413443] [2021-08-27 11:34:05,362 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:34:05,362 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:05,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:34:05,363 INFO L229 MonitoredProcess]: Starting monitored process 70 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:34:05,409 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Waiting until timeout for monitored process [2021-08-27 11:34:09,964 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:34:09,964 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:34:09,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 787 conjuncts, 70 conjunts are in the unsatisfiable core [2021-08-27 11:34:09,969 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:34:10,872 INFO L134 CoverageAnalysis]: Checked inductivity of 11526 backedges. 0 proven. 11526 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:10,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [940413443] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:10,873 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:34:10,873 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [70, 70] total 70 [2021-08-27 11:34:10,873 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932204312] [2021-08-27 11:34:10,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2021-08-27 11:34:10,873 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:34:10,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2021-08-27 11:34:10,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-08-27 11:34:10,874 INFO L87 Difference]: Start difference. First operand 346 states and 346 transitions. Second operand has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:11,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:34:11,025 INFO L93 Difference]: Finished difference Result 353 states and 353 transitions. [2021-08-27 11:34:11,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-08-27 11:34:11,025 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 345 [2021-08-27 11:34:11,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:34:11,026 INFO L225 Difference]: With dead ends: 353 [2021-08-27 11:34:11,026 INFO L226 Difference]: Without dead ends: 352 [2021-08-27 11:34:11,027 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 414 GetRequests, 345 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1790.1ms TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2021-08-27 11:34:11,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2021-08-27 11:34:11,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 351. [2021-08-27 11:34:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 351 states, 350 states have (on average 1.002857142857143) internal successors, (351), 350 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:11,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 351 states and 351 transitions. [2021-08-27 11:34:11,030 INFO L78 Accepts]: Start accepts. Automaton has 351 states and 351 transitions. Word has length 345 [2021-08-27 11:34:11,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:34:11,030 INFO L470 AbstractCegarLoop]: Abstraction has 351 states and 351 transitions. [2021-08-27 11:34:11,030 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 4.928571428571429) internal successors, (345), 71 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:11,030 INFO L276 IsEmpty]: Start isEmpty. Operand 351 states and 351 transitions. [2021-08-27 11:34:11,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2021-08-27 11:34:11,031 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:34:11,031 INFO L512 BasicCegarLoop]: trace histogram [70, 69, 69, 69, 69, 1, 1, 1, 1] [2021-08-27 11:34:11,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (70)] Forceful destruction successful, exit code 0 [2021-08-27 11:34:11,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72,70 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:11,233 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:34:11,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:34:11,233 INFO L82 PathProgramCache]: Analyzing trace with hash 1221262705, now seen corresponding path program 69 times [2021-08-27 11:34:11,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:34:11,233 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832750558] [2021-08-27 11:34:11,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:34:11,234 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:34:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:34:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 11868 backedges. 0 proven. 11868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:13,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:34:13,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832750558] [2021-08-27 11:34:13,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832750558] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:13,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35515672] [2021-08-27 11:34:13,224 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:34:13,224 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:13,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:34:13,225 INFO L229 MonitoredProcess]: Starting monitored process 71 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:34:13,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Waiting until timeout for monitored process [2021-08-27 11:34:18,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 70 check-sat command(s) [2021-08-27 11:34:18,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:34:18,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 71 conjunts are in the unsatisfiable core [2021-08-27 11:34:18,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:34:18,950 INFO L134 CoverageAnalysis]: Checked inductivity of 11868 backedges. 0 proven. 11868 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:18,951 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35515672] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:18,951 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:34:18,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71] total 71 [2021-08-27 11:34:18,951 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603343009] [2021-08-27 11:34:18,951 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 72 states [2021-08-27 11:34:18,952 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:34:18,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 72 interpolants. [2021-08-27 11:34:18,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2021-08-27 11:34:18,953 INFO L87 Difference]: Start difference. First operand 351 states and 351 transitions. Second operand has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:19,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:34:19,117 INFO L93 Difference]: Finished difference Result 358 states and 358 transitions. [2021-08-27 11:34:19,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-08-27 11:34:19,117 INFO L78 Accepts]: Start accepts. Automaton has has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 350 [2021-08-27 11:34:19,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:34:19,118 INFO L225 Difference]: With dead ends: 358 [2021-08-27 11:34:19,118 INFO L226 Difference]: Without dead ends: 357 [2021-08-27 11:34:19,119 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 350 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1831.3ms TimeCoverageRelationStatistics Valid=2556, Invalid=2556, Unknown=0, NotChecked=0, Total=5112 [2021-08-27 11:34:19,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2021-08-27 11:34:19,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 356. [2021-08-27 11:34:19,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 356 states, 355 states have (on average 1.0028169014084507) internal successors, (356), 355 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:19,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 356 states and 356 transitions. [2021-08-27 11:34:19,122 INFO L78 Accepts]: Start accepts. Automaton has 356 states and 356 transitions. Word has length 350 [2021-08-27 11:34:19,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:34:19,122 INFO L470 AbstractCegarLoop]: Abstraction has 356 states and 356 transitions. [2021-08-27 11:34:19,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 72 states, 71 states have (on average 4.929577464788732) internal successors, (350), 72 states have internal predecessors, (350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:19,122 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 356 transitions. [2021-08-27 11:34:19,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2021-08-27 11:34:19,124 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:34:19,124 INFO L512 BasicCegarLoop]: trace histogram [71, 70, 70, 70, 70, 1, 1, 1, 1] [2021-08-27 11:34:19,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (71)] Forceful destruction successful, exit code 0 [2021-08-27 11:34:19,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73,71 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:19,349 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:34:19,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:34:19,349 INFO L82 PathProgramCache]: Analyzing trace with hash 590859301, now seen corresponding path program 70 times [2021-08-27 11:34:19,349 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:34:19,349 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054070374] [2021-08-27 11:34:19,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:34:19,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:34:19,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:34:21,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12215 backedges. 0 proven. 12215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:21,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:34:21,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054070374] [2021-08-27 11:34:21,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054070374] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:21,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [287821880] [2021-08-27 11:34:21,455 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:34:21,455 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:21,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:34:21,464 INFO L229 MonitoredProcess]: Starting monitored process 72 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:34:21,465 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Waiting until timeout for monitored process [2021-08-27 11:34:26,407 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:34:26,407 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:34:26,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 72 conjunts are in the unsatisfiable core [2021-08-27 11:34:26,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:34:27,324 INFO L134 CoverageAnalysis]: Checked inductivity of 12215 backedges. 0 proven. 12215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:27,325 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [287821880] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:27,325 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:34:27,325 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 72] total 72 [2021-08-27 11:34:27,325 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297560674] [2021-08-27 11:34:27,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2021-08-27 11:34:27,325 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:34:27,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2021-08-27 11:34:27,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2021-08-27 11:34:27,326 INFO L87 Difference]: Start difference. First operand 356 states and 356 transitions. Second operand has 73 states, 72 states have (on average 4.930555555555555) internal successors, (355), 73 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:27,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:34:27,513 INFO L93 Difference]: Finished difference Result 363 states and 363 transitions. [2021-08-27 11:34:27,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-08-27 11:34:27,514 INFO L78 Accepts]: Start accepts. Automaton has has 73 states, 72 states have (on average 4.930555555555555) internal successors, (355), 73 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 355 [2021-08-27 11:34:27,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:34:27,515 INFO L225 Difference]: With dead ends: 363 [2021-08-27 11:34:27,515 INFO L226 Difference]: Without dead ends: 362 [2021-08-27 11:34:27,515 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1893.5ms TimeCoverageRelationStatistics Valid=2628, Invalid=2628, Unknown=0, NotChecked=0, Total=5256 [2021-08-27 11:34:27,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-08-27 11:34:27,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 361. [2021-08-27 11:34:27,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.0027777777777778) internal successors, (361), 360 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:27,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 361 transitions. [2021-08-27 11:34:27,518 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 361 transitions. Word has length 355 [2021-08-27 11:34:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:34:27,518 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 361 transitions. [2021-08-27 11:34:27,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 72 states have (on average 4.930555555555555) internal successors, (355), 73 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:27,519 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 361 transitions. [2021-08-27 11:34:27,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-08-27 11:34:27,520 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:34:27,520 INFO L512 BasicCegarLoop]: trace histogram [72, 71, 71, 71, 71, 1, 1, 1, 1] [2021-08-27 11:34:27,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (72)] Forceful destruction successful, exit code 0 [2021-08-27 11:34:27,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74,72 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:27,721 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:34:27,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:34:27,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1513878031, now seen corresponding path program 71 times [2021-08-27 11:34:27,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:34:27,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640381016] [2021-08-27 11:34:27,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:34:27,722 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:34:27,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:34:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 12567 backedges. 0 proven. 12567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:29,907 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:34:29,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640381016] [2021-08-27 11:34:29,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640381016] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:29,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1898667493] [2021-08-27 11:34:29,907 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:34:29,907 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:29,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:34:29,908 INFO L229 MonitoredProcess]: Starting monitored process 73 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:34:29,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Waiting until timeout for monitored process [2021-08-27 11:34:34,956 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 72 check-sat command(s) [2021-08-27 11:34:34,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:34:34,960 INFO L263 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 73 conjunts are in the unsatisfiable core [2021-08-27 11:34:34,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:34:35,903 INFO L134 CoverageAnalysis]: Checked inductivity of 12567 backedges. 0 proven. 12567 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:35,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1898667493] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:35,904 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:34:35,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73] total 73 [2021-08-27 11:34:35,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96125911] [2021-08-27 11:34:35,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2021-08-27 11:34:35,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:34:35,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-08-27 11:34:35,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2021-08-27 11:34:35,906 INFO L87 Difference]: Start difference. First operand 361 states and 361 transitions. Second operand has 74 states, 73 states have (on average 4.931506849315069) internal successors, (360), 74 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:36,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:34:36,083 INFO L93 Difference]: Finished difference Result 368 states and 368 transitions. [2021-08-27 11:34:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2021-08-27 11:34:36,083 INFO L78 Accepts]: Start accepts. Automaton has has 74 states, 73 states have (on average 4.931506849315069) internal successors, (360), 74 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 360 [2021-08-27 11:34:36,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:34:36,084 INFO L225 Difference]: With dead ends: 368 [2021-08-27 11:34:36,085 INFO L226 Difference]: Without dead ends: 367 [2021-08-27 11:34:36,085 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 360 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1997.7ms TimeCoverageRelationStatistics Valid=2701, Invalid=2701, Unknown=0, NotChecked=0, Total=5402 [2021-08-27 11:34:36,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2021-08-27 11:34:36,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 366. [2021-08-27 11:34:36,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 365 states have (on average 1.0027397260273974) internal successors, (366), 365 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:36,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 366 transitions. [2021-08-27 11:34:36,089 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 366 transitions. Word has length 360 [2021-08-27 11:34:36,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:34:36,090 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 366 transitions. [2021-08-27 11:34:36,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 73 states have (on average 4.931506849315069) internal successors, (360), 74 states have internal predecessors, (360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:36,090 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 366 transitions. [2021-08-27 11:34:36,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 366 [2021-08-27 11:34:36,092 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:34:36,092 INFO L512 BasicCegarLoop]: trace histogram [73, 72, 72, 72, 72, 1, 1, 1, 1] [2021-08-27 11:34:36,130 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (73)] Forceful destruction successful, exit code 0 [2021-08-27 11:34:36,316 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 73 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable75 [2021-08-27 11:34:36,317 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:34:36,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:34:36,317 INFO L82 PathProgramCache]: Analyzing trace with hash 567610277, now seen corresponding path program 72 times [2021-08-27 11:34:36,317 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:34:36,317 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551391937] [2021-08-27 11:34:36,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:34:36,317 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:34:36,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:34:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 12924 backedges. 0 proven. 12924 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:38,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:34:38,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551391937] [2021-08-27 11:34:38,531 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551391937] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:38,531 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494658158] [2021-08-27 11:34:38,531 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:34:38,531 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:38,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:34:38,532 INFO L229 MonitoredProcess]: Starting monitored process 74 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:34:38,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Waiting until timeout for monitored process [2021-08-27 11:34:43,760 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 73 check-sat command(s) [2021-08-27 11:34:43,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:34:43,764 INFO L263 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 74 conjunts are in the unsatisfiable core [2021-08-27 11:34:43,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:34:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 12924 backedges. 0 proven. 12924 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:44,742 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494658158] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:44,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:34:44,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [74, 74] total 74 [2021-08-27 11:34:44,743 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459533334] [2021-08-27 11:34:44,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2021-08-27 11:34:44,743 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:34:44,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2021-08-27 11:34:44,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2021-08-27 11:34:44,744 INFO L87 Difference]: Start difference. First operand 366 states and 366 transitions. Second operand has 75 states, 74 states have (on average 4.9324324324324325) internal successors, (365), 75 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:44,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:34:44,935 INFO L93 Difference]: Finished difference Result 373 states and 373 transitions. [2021-08-27 11:34:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 75 states. [2021-08-27 11:34:44,935 INFO L78 Accepts]: Start accepts. Automaton has has 75 states, 74 states have (on average 4.9324324324324325) internal successors, (365), 75 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 365 [2021-08-27 11:34:44,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:34:44,936 INFO L225 Difference]: With dead ends: 373 [2021-08-27 11:34:44,936 INFO L226 Difference]: Without dead ends: 372 [2021-08-27 11:34:44,937 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 365 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2043.0ms TimeCoverageRelationStatistics Valid=2775, Invalid=2775, Unknown=0, NotChecked=0, Total=5550 [2021-08-27 11:34:44,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-08-27 11:34:44,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 371. [2021-08-27 11:34:44,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.0027027027027027) internal successors, (371), 370 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:44,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 371 transitions. [2021-08-27 11:34:44,940 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 371 transitions. Word has length 365 [2021-08-27 11:34:44,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:34:44,940 INFO L470 AbstractCegarLoop]: Abstraction has 371 states and 371 transitions. [2021-08-27 11:34:44,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 74 states have (on average 4.9324324324324325) internal successors, (365), 75 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:44,940 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 371 transitions. [2021-08-27 11:34:44,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2021-08-27 11:34:44,942 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:34:44,942 INFO L512 BasicCegarLoop]: trace histogram [74, 73, 73, 73, 73, 1, 1, 1, 1] [2021-08-27 11:34:44,987 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (74)] Forceful destruction successful, exit code 0 [2021-08-27 11:34:45,168 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,74 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:45,169 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:34:45,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:34:45,169 INFO L82 PathProgramCache]: Analyzing trace with hash -1660780943, now seen corresponding path program 73 times [2021-08-27 11:34:45,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:34:45,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438095600] [2021-08-27 11:34:45,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:34:45,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:34:45,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:34:47,385 INFO L134 CoverageAnalysis]: Checked inductivity of 13286 backedges. 0 proven. 13286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:47,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:34:47,385 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438095600] [2021-08-27 11:34:47,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438095600] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:47,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104779550] [2021-08-27 11:34:47,386 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:34:47,386 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:47,386 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:34:47,387 INFO L229 MonitoredProcess]: Starting monitored process 75 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:34:47,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Waiting until timeout for monitored process [2021-08-27 11:34:52,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:34:52,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 842 conjuncts, 75 conjunts are in the unsatisfiable core [2021-08-27 11:34:52,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:34:53,605 INFO L134 CoverageAnalysis]: Checked inductivity of 13286 backedges. 0 proven. 13286 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:53,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104779550] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:53,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:34:53,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [75, 75] total 75 [2021-08-27 11:34:53,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980262934] [2021-08-27 11:34:53,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2021-08-27 11:34:53,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:34:53,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2021-08-27 11:34:53,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-08-27 11:34:53,607 INFO L87 Difference]: Start difference. First operand 371 states and 371 transitions. Second operand has 76 states, 75 states have (on average 4.933333333333334) internal successors, (370), 76 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:53,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:34:53,788 INFO L93 Difference]: Finished difference Result 378 states and 378 transitions. [2021-08-27 11:34:53,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2021-08-27 11:34:53,788 INFO L78 Accepts]: Start accepts. Automaton has has 76 states, 75 states have (on average 4.933333333333334) internal successors, (370), 76 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 370 [2021-08-27 11:34:53,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:34:53,789 INFO L225 Difference]: With dead ends: 378 [2021-08-27 11:34:53,789 INFO L226 Difference]: Without dead ends: 377 [2021-08-27 11:34:53,790 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 444 GetRequests, 370 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2043.9ms TimeCoverageRelationStatistics Valid=2850, Invalid=2850, Unknown=0, NotChecked=0, Total=5700 [2021-08-27 11:34:53,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2021-08-27 11:34:53,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 376. [2021-08-27 11:34:53,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.0026666666666666) internal successors, (376), 375 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:53,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 376 transitions. [2021-08-27 11:34:53,795 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 376 transitions. Word has length 370 [2021-08-27 11:34:53,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:34:53,795 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 376 transitions. [2021-08-27 11:34:53,795 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 75 states have (on average 4.933333333333334) internal successors, (370), 76 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:34:53,795 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 376 transitions. [2021-08-27 11:34:53,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 376 [2021-08-27 11:34:53,797 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:34:53,797 INFO L512 BasicCegarLoop]: trace histogram [75, 74, 74, 74, 74, 1, 1, 1, 1] [2021-08-27 11:34:53,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (75)] Ended with exit code 0 [2021-08-27 11:34:54,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77,75 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:54,005 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:34:54,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:34:54,005 INFO L82 PathProgramCache]: Analyzing trace with hash -91690203, now seen corresponding path program 74 times [2021-08-27 11:34:54,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:34:54,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960369013] [2021-08-27 11:34:54,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:34:54,005 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:34:54,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:34:56,365 INFO L134 CoverageAnalysis]: Checked inductivity of 13653 backedges. 0 proven. 13653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:34:56,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:34:56,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960369013] [2021-08-27 11:34:56,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960369013] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:34:56,365 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776218365] [2021-08-27 11:34:56,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:34:56,365 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:34:56,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:34:56,368 INFO L229 MonitoredProcess]: Starting monitored process 76 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:34:56,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Waiting until timeout for monitored process [2021-08-27 11:35:01,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:35:01,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:35:01,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 853 conjuncts, 76 conjunts are in the unsatisfiable core [2021-08-27 11:35:01,878 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:35:02,877 INFO L134 CoverageAnalysis]: Checked inductivity of 13653 backedges. 0 proven. 13653 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:02,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776218365] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:02,878 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:35:02,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76] total 76 [2021-08-27 11:35:02,878 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048338134] [2021-08-27 11:35:02,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2021-08-27 11:35:02,878 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:35:02,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2021-08-27 11:35:02,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-08-27 11:35:02,879 INFO L87 Difference]: Start difference. First operand 376 states and 376 transitions. Second operand has 77 states, 76 states have (on average 4.934210526315789) internal successors, (375), 77 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:03,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:35:03,062 INFO L93 Difference]: Finished difference Result 383 states and 383 transitions. [2021-08-27 11:35:03,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2021-08-27 11:35:03,062 INFO L78 Accepts]: Start accepts. Automaton has has 77 states, 76 states have (on average 4.934210526315789) internal successors, (375), 77 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 375 [2021-08-27 11:35:03,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:35:03,063 INFO L225 Difference]: With dead ends: 383 [2021-08-27 11:35:03,063 INFO L226 Difference]: Without dead ends: 382 [2021-08-27 11:35:03,064 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 450 GetRequests, 375 SyntacticMatches, 0 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2172.6ms TimeCoverageRelationStatistics Valid=2926, Invalid=2926, Unknown=0, NotChecked=0, Total=5852 [2021-08-27 11:35:03,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-08-27 11:35:03,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 381. [2021-08-27 11:35:03,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.0026315789473683) internal successors, (381), 380 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 381 transitions. [2021-08-27 11:35:03,067 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 381 transitions. Word has length 375 [2021-08-27 11:35:03,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:35:03,067 INFO L470 AbstractCegarLoop]: Abstraction has 381 states and 381 transitions. [2021-08-27 11:35:03,068 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 76 states have (on average 4.934210526315789) internal successors, (375), 77 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:03,068 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 381 transitions. [2021-08-27 11:35:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2021-08-27 11:35:03,069 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:35:03,069 INFO L512 BasicCegarLoop]: trace histogram [76, 75, 75, 75, 75, 1, 1, 1, 1] [2021-08-27 11:35:03,100 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (76)] Ended with exit code 0 [2021-08-27 11:35:03,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 76 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable78 [2021-08-27 11:35:03,270 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:35:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:35:03,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1622257935, now seen corresponding path program 75 times [2021-08-27 11:35:03,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:35:03,270 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228607097] [2021-08-27 11:35:03,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:35:03,270 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:35:03,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:35:05,727 INFO L134 CoverageAnalysis]: Checked inductivity of 14025 backedges. 0 proven. 14025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:05,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:35:05,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228607097] [2021-08-27 11:35:05,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228607097] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:05,728 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897764439] [2021-08-27 11:35:05,728 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:35:05,728 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:35:05,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:35:05,729 INFO L229 MonitoredProcess]: Starting monitored process 77 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:35:05,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Waiting until timeout for monitored process [2021-08-27 11:35:11,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 76 check-sat command(s) [2021-08-27 11:35:11,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:35:11,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 864 conjuncts, 77 conjunts are in the unsatisfiable core [2021-08-27 11:35:11,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:35:12,472 INFO L134 CoverageAnalysis]: Checked inductivity of 14025 backedges. 0 proven. 14025 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:12,473 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897764439] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:12,473 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:35:12,473 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 77] total 77 [2021-08-27 11:35:12,473 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576888516] [2021-08-27 11:35:12,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-08-27 11:35:12,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:35:12,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-08-27 11:35:12,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-08-27 11:35:12,476 INFO L87 Difference]: Start difference. First operand 381 states and 381 transitions. Second operand has 78 states, 77 states have (on average 4.935064935064935) internal successors, (380), 78 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:12,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:35:12,642 INFO L93 Difference]: Finished difference Result 388 states and 388 transitions. [2021-08-27 11:35:12,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2021-08-27 11:35:12,643 INFO L78 Accepts]: Start accepts. Automaton has has 78 states, 77 states have (on average 4.935064935064935) internal successors, (380), 78 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 380 [2021-08-27 11:35:12,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:35:12,644 INFO L225 Difference]: With dead ends: 388 [2021-08-27 11:35:12,644 INFO L226 Difference]: Without dead ends: 387 [2021-08-27 11:35:12,644 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2246.9ms TimeCoverageRelationStatistics Valid=3003, Invalid=3003, Unknown=0, NotChecked=0, Total=6006 [2021-08-27 11:35:12,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2021-08-27 11:35:12,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 386. [2021-08-27 11:35:12,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 1.0025974025974025) internal successors, (386), 385 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 386 transitions. [2021-08-27 11:35:12,648 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 386 transitions. Word has length 380 [2021-08-27 11:35:12,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:35:12,648 INFO L470 AbstractCegarLoop]: Abstraction has 386 states and 386 transitions. [2021-08-27 11:35:12,648 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 77 states have (on average 4.935064935064935) internal successors, (380), 78 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:12,648 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 386 transitions. [2021-08-27 11:35:12,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2021-08-27 11:35:12,649 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:35:12,650 INFO L512 BasicCegarLoop]: trace histogram [77, 76, 76, 76, 76, 1, 1, 1, 1] [2021-08-27 11:35:12,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (77)] Forceful destruction successful, exit code 0 [2021-08-27 11:35:12,856 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 77 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable79 [2021-08-27 11:35:12,857 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:35:12,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:35:12,857 INFO L82 PathProgramCache]: Analyzing trace with hash 2039179941, now seen corresponding path program 76 times [2021-08-27 11:35:12,857 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:35:12,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685210914] [2021-08-27 11:35:12,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:35:12,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:35:12,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:35:15,304 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:15,304 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:35:15,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685210914] [2021-08-27 11:35:15,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685210914] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:15,304 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [827102869] [2021-08-27 11:35:15,304 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:35:15,305 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:35:15,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:35:15,306 INFO L229 MonitoredProcess]: Starting monitored process 78 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:35:15,307 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Waiting until timeout for monitored process [2021-08-27 11:35:21,077 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:35:21,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:35:21,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 875 conjuncts, 78 conjunts are in the unsatisfiable core [2021-08-27 11:35:21,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:35:22,116 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14402 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:22,117 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [827102869] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:22,117 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:35:22,117 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78] total 78 [2021-08-27 11:35:22,117 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699727033] [2021-08-27 11:35:22,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-08-27 11:35:22,118 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:35:22,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-08-27 11:35:22,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-08-27 11:35:22,119 INFO L87 Difference]: Start difference. First operand 386 states and 386 transitions. Second operand has 79 states, 78 states have (on average 4.935897435897436) internal successors, (385), 79 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:22,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:35:22,311 INFO L93 Difference]: Finished difference Result 393 states and 393 transitions. [2021-08-27 11:35:22,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-08-27 11:35:22,312 INFO L78 Accepts]: Start accepts. Automaton has has 79 states, 78 states have (on average 4.935897435897436) internal successors, (385), 79 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2021-08-27 11:35:22,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:35:22,313 INFO L225 Difference]: With dead ends: 393 [2021-08-27 11:35:22,313 INFO L226 Difference]: Without dead ends: 392 [2021-08-27 11:35:22,313 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 385 SyntacticMatches, 0 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2254.5ms TimeCoverageRelationStatistics Valid=3081, Invalid=3081, Unknown=0, NotChecked=0, Total=6162 [2021-08-27 11:35:22,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2021-08-27 11:35:22,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 391. [2021-08-27 11:35:22,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 391 states, 390 states have (on average 1.0025641025641026) internal successors, (391), 390 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 391 transitions. [2021-08-27 11:35:22,317 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 391 transitions. Word has length 385 [2021-08-27 11:35:22,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:35:22,317 INFO L470 AbstractCegarLoop]: Abstraction has 391 states and 391 transitions. [2021-08-27 11:35:22,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 78 states have (on average 4.935897435897436) internal successors, (385), 79 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:22,317 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 391 transitions. [2021-08-27 11:35:22,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2021-08-27 11:35:22,318 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:35:22,319 INFO L512 BasicCegarLoop]: trace histogram [78, 77, 77, 77, 77, 1, 1, 1, 1] [2021-08-27 11:35:22,351 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (78)] Forceful destruction successful, exit code 0 [2021-08-27 11:35:22,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,78 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:35:22,519 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:35:22,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:35:22,521 INFO L82 PathProgramCache]: Analyzing trace with hash -1016103055, now seen corresponding path program 77 times [2021-08-27 11:35:22,521 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:35:22,521 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716822254] [2021-08-27 11:35:22,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:35:22,521 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:35:22,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:35:25,060 INFO L134 CoverageAnalysis]: Checked inductivity of 14784 backedges. 0 proven. 14784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:25,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:35:25,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716822254] [2021-08-27 11:35:25,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716822254] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:25,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643649739] [2021-08-27 11:35:25,060 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:35:25,060 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:35:25,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:35:25,061 INFO L229 MonitoredProcess]: Starting monitored process 79 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:35:25,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Waiting until timeout for monitored process [2021-08-27 11:35:30,996 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 78 check-sat command(s) [2021-08-27 11:35:30,996 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:35:31,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 79 conjunts are in the unsatisfiable core [2021-08-27 11:35:31,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:35:32,048 INFO L134 CoverageAnalysis]: Checked inductivity of 14784 backedges. 0 proven. 14784 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:32,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643649739] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:32,048 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:35:32,048 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [79, 79] total 79 [2021-08-27 11:35:32,048 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677136580] [2021-08-27 11:35:32,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2021-08-27 11:35:32,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:35:32,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2021-08-27 11:35:32,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-08-27 11:35:32,050 INFO L87 Difference]: Start difference. First operand 391 states and 391 transitions. Second operand has 80 states, 79 states have (on average 4.936708860759493) internal successors, (390), 80 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:32,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:35:32,237 INFO L93 Difference]: Finished difference Result 398 states and 398 transitions. [2021-08-27 11:35:32,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2021-08-27 11:35:32,238 INFO L78 Accepts]: Start accepts. Automaton has has 80 states, 79 states have (on average 4.936708860759493) internal successors, (390), 80 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2021-08-27 11:35:32,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:35:32,239 INFO L225 Difference]: With dead ends: 398 [2021-08-27 11:35:32,239 INFO L226 Difference]: Without dead ends: 397 [2021-08-27 11:35:32,239 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 468 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2339.8ms TimeCoverageRelationStatistics Valid=3160, Invalid=3160, Unknown=0, NotChecked=0, Total=6320 [2021-08-27 11:35:32,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2021-08-27 11:35:32,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 396. [2021-08-27 11:35:32,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 395 states have (on average 1.0025316455696203) internal successors, (396), 395 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:32,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 396 transitions. [2021-08-27 11:35:32,243 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 396 transitions. Word has length 390 [2021-08-27 11:35:32,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:35:32,243 INFO L470 AbstractCegarLoop]: Abstraction has 396 states and 396 transitions. [2021-08-27 11:35:32,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 79 states have (on average 4.936708860759493) internal successors, (390), 80 states have internal predecessors, (390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:32,243 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 396 transitions. [2021-08-27 11:35:32,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2021-08-27 11:35:32,244 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:35:32,244 INFO L512 BasicCegarLoop]: trace histogram [79, 78, 78, 78, 78, 1, 1, 1, 1] [2021-08-27 11:35:32,276 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (79)] Ended with exit code 0 [2021-08-27 11:35:32,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81,79 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:35:32,445 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:35:32,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:35:32,445 INFO L82 PathProgramCache]: Analyzing trace with hash -2062251483, now seen corresponding path program 78 times [2021-08-27 11:35:32,445 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:35:32,445 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666886120] [2021-08-27 11:35:32,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:35:32,446 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:35:32,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:35:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 15171 backedges. 0 proven. 15171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:34,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:35:34,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666886120] [2021-08-27 11:35:34,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666886120] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:34,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474019151] [2021-08-27 11:35:34,955 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:35:34,955 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:35:34,955 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:35:34,956 INFO L229 MonitoredProcess]: Starting monitored process 80 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:35:34,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Waiting until timeout for monitored process [2021-08-27 11:35:41,117 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 79 check-sat command(s) [2021-08-27 11:35:41,117 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:35:41,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 897 conjuncts, 80 conjunts are in the unsatisfiable core [2021-08-27 11:35:41,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:35:42,189 INFO L134 CoverageAnalysis]: Checked inductivity of 15171 backedges. 0 proven. 15171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:42,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474019151] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:42,189 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:35:42,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [80, 80] total 80 [2021-08-27 11:35:42,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097935936] [2021-08-27 11:35:42,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2021-08-27 11:35:42,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:35:42,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2021-08-27 11:35:42,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2021-08-27 11:35:42,192 INFO L87 Difference]: Start difference. First operand 396 states and 396 transitions. Second operand has 81 states, 80 states have (on average 4.9375) internal successors, (395), 81 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:42,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:35:42,435 INFO L93 Difference]: Finished difference Result 403 states and 403 transitions. [2021-08-27 11:35:42,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2021-08-27 11:35:42,436 INFO L78 Accepts]: Start accepts. Automaton has has 81 states, 80 states have (on average 4.9375) internal successors, (395), 81 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 395 [2021-08-27 11:35:42,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:35:42,437 INFO L225 Difference]: With dead ends: 403 [2021-08-27 11:35:42,437 INFO L226 Difference]: Without dead ends: 402 [2021-08-27 11:35:42,438 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 474 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2321.6ms TimeCoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2021-08-27 11:35:42,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-08-27 11:35:42,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 401. [2021-08-27 11:35:42,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.0025) internal successors, (401), 400 states have internal predecessors, (401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:42,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 401 transitions. [2021-08-27 11:35:42,443 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 401 transitions. Word has length 395 [2021-08-27 11:35:42,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:35:42,443 INFO L470 AbstractCegarLoop]: Abstraction has 401 states and 401 transitions. [2021-08-27 11:35:42,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 80 states have (on average 4.9375) internal successors, (395), 81 states have internal predecessors, (395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:42,444 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 401 transitions. [2021-08-27 11:35:42,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2021-08-27 11:35:42,446 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:35:42,446 INFO L512 BasicCegarLoop]: trace histogram [80, 79, 79, 79, 79, 1, 1, 1, 1] [2021-08-27 11:35:42,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (80)] Forceful destruction successful, exit code 0 [2021-08-27 11:35:42,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 80 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable82 [2021-08-27 11:35:42,659 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:35:42,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:35:42,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1177423857, now seen corresponding path program 79 times [2021-08-27 11:35:42,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:35:42,659 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169856343] [2021-08-27 11:35:42,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:35:42,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:35:42,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:35:45,313 INFO L134 CoverageAnalysis]: Checked inductivity of 15563 backedges. 0 proven. 15563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:45,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:35:45,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169856343] [2021-08-27 11:35:45,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1169856343] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:45,314 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [498986969] [2021-08-27 11:35:45,314 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:35:45,314 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:35:45,314 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:35:45,315 INFO L229 MonitoredProcess]: Starting monitored process 81 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:35:45,316 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Waiting until timeout for monitored process [2021-08-27 11:35:51,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:35:51,442 INFO L263 TraceCheckSpWp]: Trace formula consists of 908 conjuncts, 81 conjunts are in the unsatisfiable core [2021-08-27 11:35:51,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:35:52,494 INFO L134 CoverageAnalysis]: Checked inductivity of 15563 backedges. 0 proven. 15563 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:52,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [498986969] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:52,494 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:35:52,494 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81] total 81 [2021-08-27 11:35:52,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368600686] [2021-08-27 11:35:52,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2021-08-27 11:35:52,495 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:35:52,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-08-27 11:35:52,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2021-08-27 11:35:52,496 INFO L87 Difference]: Start difference. First operand 401 states and 401 transitions. Second operand has 82 states, 81 states have (on average 4.938271604938271) internal successors, (400), 82 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:52,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:35:52,681 INFO L93 Difference]: Finished difference Result 408 states and 408 transitions. [2021-08-27 11:35:52,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-08-27 11:35:52,682 INFO L78 Accepts]: Start accepts. Automaton has has 82 states, 81 states have (on average 4.938271604938271) internal successors, (400), 82 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 400 [2021-08-27 11:35:52,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:35:52,683 INFO L225 Difference]: With dead ends: 408 [2021-08-27 11:35:52,683 INFO L226 Difference]: Without dead ends: 407 [2021-08-27 11:35:52,683 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 480 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2466.9ms TimeCoverageRelationStatistics Valid=3321, Invalid=3321, Unknown=0, NotChecked=0, Total=6642 [2021-08-27 11:35:52,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2021-08-27 11:35:52,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 406. [2021-08-27 11:35:52,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 1.002469135802469) internal successors, (406), 405 states have internal predecessors, (406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:52,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 406 transitions. [2021-08-27 11:35:52,687 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 406 transitions. Word has length 400 [2021-08-27 11:35:52,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:35:52,687 INFO L470 AbstractCegarLoop]: Abstraction has 406 states and 406 transitions. [2021-08-27 11:35:52,688 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 81 states have (on average 4.938271604938271) internal successors, (400), 82 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:35:52,688 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 406 transitions. [2021-08-27 11:35:52,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2021-08-27 11:35:52,689 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:35:52,689 INFO L512 BasicCegarLoop]: trace histogram [81, 80, 80, 80, 80, 1, 1, 1, 1] [2021-08-27 11:35:52,740 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (81)] Ended with exit code 0 [2021-08-27 11:35:52,889 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83,81 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:35:52,890 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:35:52,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:35:52,891 INFO L82 PathProgramCache]: Analyzing trace with hash -1654896219, now seen corresponding path program 80 times [2021-08-27 11:35:52,891 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:35:52,891 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667822817] [2021-08-27 11:35:52,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:35:52,891 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:35:52,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:35:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 15960 backedges. 0 proven. 15960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:35:55,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:35:55,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667822817] [2021-08-27 11:35:55,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667822817] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:35:55,565 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318851818] [2021-08-27 11:35:55,565 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:35:55,565 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:35:55,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:35:55,566 INFO L229 MonitoredProcess]: Starting monitored process 82 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:35:55,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Waiting until timeout for monitored process [2021-08-27 11:36:01,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:36:01,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:36:01,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 919 conjuncts, 82 conjunts are in the unsatisfiable core [2021-08-27 11:36:01,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:36:03,078 INFO L134 CoverageAnalysis]: Checked inductivity of 15960 backedges. 0 proven. 15960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:03,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318851818] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:03,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:36:03,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [82, 82] total 82 [2021-08-27 11:36:03,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635476531] [2021-08-27 11:36:03,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2021-08-27 11:36:03,079 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:36:03,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2021-08-27 11:36:03,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2021-08-27 11:36:03,080 INFO L87 Difference]: Start difference. First operand 406 states and 406 transitions. Second operand has 83 states, 82 states have (on average 4.939024390243903) internal successors, (405), 83 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:03,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:36:03,282 INFO L93 Difference]: Finished difference Result 413 states and 413 transitions. [2021-08-27 11:36:03,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 83 states. [2021-08-27 11:36:03,282 INFO L78 Accepts]: Start accepts. Automaton has has 83 states, 82 states have (on average 4.939024390243903) internal successors, (405), 83 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 405 [2021-08-27 11:36:03,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:36:03,283 INFO L225 Difference]: With dead ends: 413 [2021-08-27 11:36:03,283 INFO L226 Difference]: Without dead ends: 412 [2021-08-27 11:36:03,284 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 405 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2477.5ms TimeCoverageRelationStatistics Valid=3403, Invalid=3403, Unknown=0, NotChecked=0, Total=6806 [2021-08-27 11:36:03,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2021-08-27 11:36:03,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 411. [2021-08-27 11:36:03,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 410 states have (on average 1.002439024390244) internal successors, (411), 410 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:03,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 411 transitions. [2021-08-27 11:36:03,288 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 411 transitions. Word has length 405 [2021-08-27 11:36:03,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:36:03,288 INFO L470 AbstractCegarLoop]: Abstraction has 411 states and 411 transitions. [2021-08-27 11:36:03,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 82 states have (on average 4.939024390243903) internal successors, (405), 83 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:03,289 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 411 transitions. [2021-08-27 11:36:03,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2021-08-27 11:36:03,290 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:36:03,290 INFO L512 BasicCegarLoop]: trace histogram [82, 81, 81, 81, 81, 1, 1, 1, 1] [2021-08-27 11:36:03,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (82)] Ended with exit code 0 [2021-08-27 11:36:03,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84,82 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:36:03,491 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:36:03,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:36:03,491 INFO L82 PathProgramCache]: Analyzing trace with hash 173146225, now seen corresponding path program 81 times [2021-08-27 11:36:03,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:36:03,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743324542] [2021-08-27 11:36:03,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:36:03,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:36:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:36:06,299 INFO L134 CoverageAnalysis]: Checked inductivity of 16362 backedges. 0 proven. 16362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:06,299 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:36:06,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743324542] [2021-08-27 11:36:06,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743324542] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:06,299 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782365799] [2021-08-27 11:36:06,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:36:06,299 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:36:06,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:36:06,300 INFO L229 MonitoredProcess]: Starting monitored process 83 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:36:06,301 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Waiting until timeout for monitored process [2021-08-27 11:36:12,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 82 check-sat command(s) [2021-08-27 11:36:12,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:36:12,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 930 conjuncts, 83 conjunts are in the unsatisfiable core [2021-08-27 11:36:12,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:36:13,866 INFO L134 CoverageAnalysis]: Checked inductivity of 16362 backedges. 0 proven. 16362 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:13,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782365799] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:13,866 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:36:13,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [83, 83] total 83 [2021-08-27 11:36:13,867 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351780982] [2021-08-27 11:36:13,867 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2021-08-27 11:36:13,867 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:36:13,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2021-08-27 11:36:13,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2021-08-27 11:36:13,868 INFO L87 Difference]: Start difference. First operand 411 states and 411 transitions. Second operand has 84 states, 83 states have (on average 4.9397590361445785) internal successors, (410), 84 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:14,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:36:14,058 INFO L93 Difference]: Finished difference Result 418 states and 418 transitions. [2021-08-27 11:36:14,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-08-27 11:36:14,060 INFO L78 Accepts]: Start accepts. Automaton has has 84 states, 83 states have (on average 4.9397590361445785) internal successors, (410), 84 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 410 [2021-08-27 11:36:14,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:36:14,061 INFO L225 Difference]: With dead ends: 418 [2021-08-27 11:36:14,061 INFO L226 Difference]: Without dead ends: 417 [2021-08-27 11:36:14,062 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2607.0ms TimeCoverageRelationStatistics Valid=3486, Invalid=3486, Unknown=0, NotChecked=0, Total=6972 [2021-08-27 11:36:14,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2021-08-27 11:36:14,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 416. [2021-08-27 11:36:14,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 1.002409638554217) internal successors, (416), 415 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:14,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 416 transitions. [2021-08-27 11:36:14,066 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 416 transitions. Word has length 410 [2021-08-27 11:36:14,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:36:14,066 INFO L470 AbstractCegarLoop]: Abstraction has 416 states and 416 transitions. [2021-08-27 11:36:14,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 83 states have (on average 4.9397590361445785) internal successors, (410), 84 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:14,066 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 416 transitions. [2021-08-27 11:36:14,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 416 [2021-08-27 11:36:14,068 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:36:14,068 INFO L512 BasicCegarLoop]: trace histogram [83, 82, 82, 82, 82, 1, 1, 1, 1] [2021-08-27 11:36:14,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (83)] Ended with exit code 0 [2021-08-27 11:36:14,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable85 [2021-08-27 11:36:14,268 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:36:14,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:36:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1553639717, now seen corresponding path program 82 times [2021-08-27 11:36:14,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:36:14,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744696612] [2021-08-27 11:36:14,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:36:14,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:36:14,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:36:17,036 INFO L134 CoverageAnalysis]: Checked inductivity of 16769 backedges. 0 proven. 16769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:17,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:36:17,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744696612] [2021-08-27 11:36:17,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744696612] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:17,037 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499678472] [2021-08-27 11:36:17,038 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:36:17,038 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:36:17,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:36:17,039 INFO L229 MonitoredProcess]: Starting monitored process 84 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:36:17,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Waiting until timeout for monitored process [2021-08-27 11:36:23,697 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:36:23,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:36:23,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 941 conjuncts, 84 conjunts are in the unsatisfiable core [2021-08-27 11:36:23,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:36:24,789 INFO L134 CoverageAnalysis]: Checked inductivity of 16769 backedges. 0 proven. 16769 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:24,789 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499678472] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:24,789 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:36:24,789 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 84] total 84 [2021-08-27 11:36:24,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071507351] [2021-08-27 11:36:24,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 85 states [2021-08-27 11:36:24,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:36:24,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 85 interpolants. [2021-08-27 11:36:24,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2021-08-27 11:36:24,791 INFO L87 Difference]: Start difference. First operand 416 states and 416 transitions. Second operand has 85 states, 84 states have (on average 4.940476190476191) internal successors, (415), 85 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:24,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:36:24,977 INFO L93 Difference]: Finished difference Result 423 states and 423 transitions. [2021-08-27 11:36:24,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2021-08-27 11:36:24,977 INFO L78 Accepts]: Start accepts. Automaton has has 85 states, 84 states have (on average 4.940476190476191) internal successors, (415), 85 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 415 [2021-08-27 11:36:24,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:36:24,978 INFO L225 Difference]: With dead ends: 423 [2021-08-27 11:36:24,978 INFO L226 Difference]: Without dead ends: 422 [2021-08-27 11:36:24,979 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 498 GetRequests, 415 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2569.6ms TimeCoverageRelationStatistics Valid=3570, Invalid=3570, Unknown=0, NotChecked=0, Total=7140 [2021-08-27 11:36:24,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2021-08-27 11:36:24,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 421. [2021-08-27 11:36:24,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.0023809523809524) internal successors, (421), 420 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:24,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 421 transitions. [2021-08-27 11:36:24,982 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 421 transitions. Word has length 415 [2021-08-27 11:36:24,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:36:24,983 INFO L470 AbstractCegarLoop]: Abstraction has 421 states and 421 transitions. [2021-08-27 11:36:24,983 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 85 states, 84 states have (on average 4.940476190476191) internal successors, (415), 85 states have internal predecessors, (415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:24,983 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 421 transitions. [2021-08-27 11:36:24,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2021-08-27 11:36:24,984 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:36:24,984 INFO L512 BasicCegarLoop]: trace histogram [84, 83, 83, 83, 83, 1, 1, 1, 1] [2021-08-27 11:36:25,021 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (84)] Ended with exit code 0 [2021-08-27 11:36:25,185 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86,84 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:36:25,185 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:36:25,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:36:25,185 INFO L82 PathProgramCache]: Analyzing trace with hash 413356273, now seen corresponding path program 83 times [2021-08-27 11:36:25,185 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:36:25,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600382649] [2021-08-27 11:36:25,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:36:25,186 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:36:25,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:36:28,070 INFO L134 CoverageAnalysis]: Checked inductivity of 17181 backedges. 0 proven. 17181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:28,070 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:36:28,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600382649] [2021-08-27 11:36:28,070 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1600382649] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:28,070 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [341501195] [2021-08-27 11:36:28,070 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:36:28,070 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:36:28,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:36:28,072 INFO L229 MonitoredProcess]: Starting monitored process 85 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:36:28,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Waiting until timeout for monitored process [2021-08-27 11:36:34,933 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2021-08-27 11:36:34,933 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:36:34,938 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 85 conjunts are in the unsatisfiable core [2021-08-27 11:36:34,940 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:36:36,015 INFO L134 CoverageAnalysis]: Checked inductivity of 17181 backedges. 0 proven. 17181 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:36,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [341501195] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:36,016 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:36:36,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [85, 85] total 85 [2021-08-27 11:36:36,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663263318] [2021-08-27 11:36:36,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2021-08-27 11:36:36,016 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:36:36,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2021-08-27 11:36:36,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2021-08-27 11:36:36,017 INFO L87 Difference]: Start difference. First operand 421 states and 421 transitions. Second operand has 86 states, 85 states have (on average 4.9411764705882355) internal successors, (420), 86 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:36,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:36:36,212 INFO L93 Difference]: Finished difference Result 428 states and 428 transitions. [2021-08-27 11:36:36,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-08-27 11:36:36,212 INFO L78 Accepts]: Start accepts. Automaton has has 86 states, 85 states have (on average 4.9411764705882355) internal successors, (420), 86 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 420 [2021-08-27 11:36:36,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:36:36,213 INFO L225 Difference]: With dead ends: 428 [2021-08-27 11:36:36,213 INFO L226 Difference]: Without dead ends: 427 [2021-08-27 11:36:36,214 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 420 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2680.5ms TimeCoverageRelationStatistics Valid=3655, Invalid=3655, Unknown=0, NotChecked=0, Total=7310 [2021-08-27 11:36:36,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2021-08-27 11:36:36,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2021-08-27 11:36:36,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 1.0023529411764707) internal successors, (426), 425 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 426 transitions. [2021-08-27 11:36:36,218 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 426 transitions. Word has length 420 [2021-08-27 11:36:36,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:36:36,218 INFO L470 AbstractCegarLoop]: Abstraction has 426 states and 426 transitions. [2021-08-27 11:36:36,218 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 85 states have (on average 4.9411764705882355) internal successors, (420), 86 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 426 transitions. [2021-08-27 11:36:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 426 [2021-08-27 11:36:36,219 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:36:36,219 INFO L512 BasicCegarLoop]: trace histogram [85, 84, 84, 84, 84, 1, 1, 1, 1] [2021-08-27 11:36:36,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (85)] Ended with exit code 0 [2021-08-27 11:36:36,420 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87,85 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:36:36,420 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:36:36,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:36:36,420 INFO L82 PathProgramCache]: Analyzing trace with hash -150493019, now seen corresponding path program 84 times [2021-08-27 11:36:36,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:36:36,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725886266] [2021-08-27 11:36:36,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:36:36,421 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:36:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:36:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 17598 backedges. 0 proven. 17598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:39,401 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:36:39,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725886266] [2021-08-27 11:36:39,401 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725886266] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:39,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534746965] [2021-08-27 11:36:39,401 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:36:39,401 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:36:39,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:36:39,403 INFO L229 MonitoredProcess]: Starting monitored process 86 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:36:39,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Waiting until timeout for monitored process [2021-08-27 11:36:46,452 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 85 check-sat command(s) [2021-08-27 11:36:46,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:36:46,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 86 conjunts are in the unsatisfiable core [2021-08-27 11:36:46,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:36:47,567 INFO L134 CoverageAnalysis]: Checked inductivity of 17598 backedges. 0 proven. 17598 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:47,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534746965] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:47,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:36:47,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 86] total 86 [2021-08-27 11:36:47,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314237043] [2021-08-27 11:36:47,568 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2021-08-27 11:36:47,568 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:36:47,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2021-08-27 11:36:47,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2021-08-27 11:36:47,569 INFO L87 Difference]: Start difference. First operand 426 states and 426 transitions. Second operand has 87 states, 86 states have (on average 4.941860465116279) internal successors, (425), 87 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:47,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:36:47,760 INFO L93 Difference]: Finished difference Result 433 states and 433 transitions. [2021-08-27 11:36:47,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states. [2021-08-27 11:36:47,760 INFO L78 Accepts]: Start accepts. Automaton has has 87 states, 86 states have (on average 4.941860465116279) internal successors, (425), 87 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 425 [2021-08-27 11:36:47,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:36:47,761 INFO L225 Difference]: With dead ends: 433 [2021-08-27 11:36:47,761 INFO L226 Difference]: Without dead ends: 432 [2021-08-27 11:36:47,762 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2758.8ms TimeCoverageRelationStatistics Valid=3741, Invalid=3741, Unknown=0, NotChecked=0, Total=7482 [2021-08-27 11:36:47,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2021-08-27 11:36:47,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 431. [2021-08-27 11:36:47,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.0023255813953489) internal successors, (431), 430 states have internal predecessors, (431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:47,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 431 transitions. [2021-08-27 11:36:47,765 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 431 transitions. Word has length 425 [2021-08-27 11:36:47,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:36:47,766 INFO L470 AbstractCegarLoop]: Abstraction has 431 states and 431 transitions. [2021-08-27 11:36:47,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 86 states have (on average 4.941860465116279) internal successors, (425), 87 states have internal predecessors, (425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:47,766 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 431 transitions. [2021-08-27 11:36:47,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 431 [2021-08-27 11:36:47,767 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:36:47,767 INFO L512 BasicCegarLoop]: trace histogram [86, 85, 85, 85, 85, 1, 1, 1, 1] [2021-08-27 11:36:47,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (86)] Ended with exit code 0 [2021-08-27 11:36:47,968 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable88 [2021-08-27 11:36:47,968 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:36:47,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:36:47,968 INFO L82 PathProgramCache]: Analyzing trace with hash 535429489, now seen corresponding path program 85 times [2021-08-27 11:36:47,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:36:47,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357373510] [2021-08-27 11:36:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:36:47,969 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:36:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:36:50,987 INFO L134 CoverageAnalysis]: Checked inductivity of 18020 backedges. 0 proven. 18020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:50,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:36:50,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357373510] [2021-08-27 11:36:50,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357373510] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:50,988 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996794824] [2021-08-27 11:36:50,988 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:36:50,988 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:36:50,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:36:50,989 INFO L229 MonitoredProcess]: Starting monitored process 87 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:36:50,989 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Waiting until timeout for monitored process [2021-08-27 11:36:58,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:36:58,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 87 conjunts are in the unsatisfiable core [2021-08-27 11:36:58,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:36:59,163 INFO L134 CoverageAnalysis]: Checked inductivity of 18020 backedges. 0 proven. 18020 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:36:59,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996794824] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:36:59,164 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:36:59,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87] total 87 [2021-08-27 11:36:59,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653698763] [2021-08-27 11:36:59,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2021-08-27 11:36:59,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:36:59,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2021-08-27 11:36:59,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2021-08-27 11:36:59,165 INFO L87 Difference]: Start difference. First operand 431 states and 431 transitions. Second operand has 88 states, 87 states have (on average 4.942528735632184) internal successors, (430), 88 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:59,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:36:59,368 INFO L93 Difference]: Finished difference Result 438 states and 438 transitions. [2021-08-27 11:36:59,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-08-27 11:36:59,369 INFO L78 Accepts]: Start accepts. Automaton has has 88 states, 87 states have (on average 4.942528735632184) internal successors, (430), 88 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 430 [2021-08-27 11:36:59,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:36:59,370 INFO L225 Difference]: With dead ends: 438 [2021-08-27 11:36:59,370 INFO L226 Difference]: Without dead ends: 437 [2021-08-27 11:36:59,371 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2812.6ms TimeCoverageRelationStatistics Valid=3828, Invalid=3828, Unknown=0, NotChecked=0, Total=7656 [2021-08-27 11:36:59,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2021-08-27 11:36:59,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 436. [2021-08-27 11:36:59,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 1.0022988505747126) internal successors, (436), 435 states have internal predecessors, (436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:59,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 436 transitions. [2021-08-27 11:36:59,397 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 436 transitions. Word has length 430 [2021-08-27 11:36:59,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:36:59,398 INFO L470 AbstractCegarLoop]: Abstraction has 436 states and 436 transitions. [2021-08-27 11:36:59,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 87 states have (on average 4.942528735632184) internal successors, (430), 88 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:36:59,398 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 436 transitions. [2021-08-27 11:36:59,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2021-08-27 11:36:59,399 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:36:59,400 INFO L512 BasicCegarLoop]: trace histogram [87, 86, 86, 86, 86, 1, 1, 1, 1] [2021-08-27 11:36:59,437 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (87)] Ended with exit code 0 [2021-08-27 11:36:59,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89,87 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:36:59,600 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:36:59,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:36:59,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1160034267, now seen corresponding path program 86 times [2021-08-27 11:36:59,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:36:59,601 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164558518] [2021-08-27 11:36:59,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:36:59,601 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:36:59,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:37:02,628 INFO L134 CoverageAnalysis]: Checked inductivity of 18447 backedges. 0 proven. 18447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:37:02,628 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:37:02,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164558518] [2021-08-27 11:37:02,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164558518] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:37:02,629 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663949583] [2021-08-27 11:37:02,629 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:37:02,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:37:02,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:37:02,630 INFO L229 MonitoredProcess]: Starting monitored process 88 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:37:02,630 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Waiting until timeout for monitored process [2021-08-27 11:37:09,968 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:37:09,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:37:09,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 88 conjunts are in the unsatisfiable core [2021-08-27 11:37:09,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:37:11,109 INFO L134 CoverageAnalysis]: Checked inductivity of 18447 backedges. 0 proven. 18447 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:37:11,109 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [663949583] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:37:11,109 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:37:11,109 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [88, 88] total 88 [2021-08-27 11:37:11,109 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281104196] [2021-08-27 11:37:11,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2021-08-27 11:37:11,110 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:37:11,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2021-08-27 11:37:11,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2021-08-27 11:37:11,111 INFO L87 Difference]: Start difference. First operand 436 states and 436 transitions. Second operand has 89 states, 88 states have (on average 4.943181818181818) internal successors, (435), 89 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:11,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:37:11,321 INFO L93 Difference]: Finished difference Result 443 states and 443 transitions. [2021-08-27 11:37:11,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2021-08-27 11:37:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 89 states, 88 states have (on average 4.943181818181818) internal successors, (435), 89 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 435 [2021-08-27 11:37:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:37:11,323 INFO L225 Difference]: With dead ends: 443 [2021-08-27 11:37:11,323 INFO L226 Difference]: Without dead ends: 442 [2021-08-27 11:37:11,323 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2818.2ms TimeCoverageRelationStatistics Valid=3916, Invalid=3916, Unknown=0, NotChecked=0, Total=7832 [2021-08-27 11:37:11,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2021-08-27 11:37:11,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 441. [2021-08-27 11:37:11,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 441 states, 440 states have (on average 1.0022727272727272) internal successors, (441), 440 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:11,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 441 transitions. [2021-08-27 11:37:11,327 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 441 transitions. Word has length 435 [2021-08-27 11:37:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:37:11,327 INFO L470 AbstractCegarLoop]: Abstraction has 441 states and 441 transitions. [2021-08-27 11:37:11,327 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 88 states have (on average 4.943181818181818) internal successors, (435), 89 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 441 transitions. [2021-08-27 11:37:11,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2021-08-27 11:37:11,329 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:37:11,329 INFO L512 BasicCegarLoop]: trace histogram [88, 87, 87, 87, 87, 1, 1, 1, 1] [2021-08-27 11:37:11,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (88)] Ended with exit code 0 [2021-08-27 11:37:11,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,88 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:37:11,530 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:37:11,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:37:11,530 INFO L82 PathProgramCache]: Analyzing trace with hash -185724431, now seen corresponding path program 87 times [2021-08-27 11:37:11,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:37:11,530 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870563809] [2021-08-27 11:37:11,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:37:11,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:37:11,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:37:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 18879 backedges. 0 proven. 18879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:37:14,685 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:37:14,685 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870563809] [2021-08-27 11:37:14,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870563809] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:37:14,686 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617841015] [2021-08-27 11:37:14,686 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:37:14,686 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:37:14,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:37:14,686 INFO L229 MonitoredProcess]: Starting monitored process 89 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:37:14,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Waiting until timeout for monitored process [2021-08-27 11:37:22,313 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 88 check-sat command(s) [2021-08-27 11:37:22,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:37:22,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 89 conjunts are in the unsatisfiable core [2021-08-27 11:37:22,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:37:23,464 INFO L134 CoverageAnalysis]: Checked inductivity of 18879 backedges. 0 proven. 18879 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:37:23,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617841015] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:37:23,464 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:37:23,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 89] total 89 [2021-08-27 11:37:23,465 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161485860] [2021-08-27 11:37:23,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2021-08-27 11:37:23,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:37:23,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-08-27 11:37:23,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2021-08-27 11:37:23,466 INFO L87 Difference]: Start difference. First operand 441 states and 441 transitions. Second operand has 90 states, 89 states have (on average 4.943820224719101) internal successors, (440), 90 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:23,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:37:23,697 INFO L93 Difference]: Finished difference Result 448 states and 448 transitions. [2021-08-27 11:37:23,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 90 states. [2021-08-27 11:37:23,698 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 89 states have (on average 4.943820224719101) internal successors, (440), 90 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 440 [2021-08-27 11:37:23,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:37:23,699 INFO L225 Difference]: With dead ends: 448 [2021-08-27 11:37:23,699 INFO L226 Difference]: Without dead ends: 447 [2021-08-27 11:37:23,700 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 440 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2942.4ms TimeCoverageRelationStatistics Valid=4005, Invalid=4005, Unknown=0, NotChecked=0, Total=8010 [2021-08-27 11:37:23,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2021-08-27 11:37:23,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 446. [2021-08-27 11:37:23,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.002247191011236) internal successors, (446), 445 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:23,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 446 transitions. [2021-08-27 11:37:23,703 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 446 transitions. Word has length 440 [2021-08-27 11:37:23,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:37:23,704 INFO L470 AbstractCegarLoop]: Abstraction has 446 states and 446 transitions. [2021-08-27 11:37:23,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 89 states have (on average 4.943820224719101) internal successors, (440), 90 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:23,704 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 446 transitions. [2021-08-27 11:37:23,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2021-08-27 11:37:23,705 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:37:23,706 INFO L512 BasicCegarLoop]: trace histogram [89, 88, 88, 88, 88, 1, 1, 1, 1] [2021-08-27 11:37:23,743 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (89)] Ended with exit code 0 [2021-08-27 11:37:23,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91,89 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:37:23,906 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:37:23,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:37:23,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1873967195, now seen corresponding path program 88 times [2021-08-27 11:37:23,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:37:23,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037009566] [2021-08-27 11:37:23,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:37:23,907 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:37:23,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:37:27,127 INFO L134 CoverageAnalysis]: Checked inductivity of 19316 backedges. 0 proven. 19316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:37:27,128 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:37:27,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037009566] [2021-08-27 11:37:27,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037009566] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:37:27,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282978335] [2021-08-27 11:37:27,128 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:37:27,128 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:37:27,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:37:27,129 INFO L229 MonitoredProcess]: Starting monitored process 90 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:37:27,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Waiting until timeout for monitored process [2021-08-27 11:37:34,754 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:37:34,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:37:34,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 1007 conjuncts, 90 conjunts are in the unsatisfiable core [2021-08-27 11:37:34,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:37:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 19316 backedges. 0 proven. 19316 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:37:35,938 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282978335] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:37:35,938 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:37:35,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 90] total 90 [2021-08-27 11:37:35,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617569999] [2021-08-27 11:37:35,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 91 states [2021-08-27 11:37:35,939 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:37:35,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 91 interpolants. [2021-08-27 11:37:35,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2021-08-27 11:37:35,940 INFO L87 Difference]: Start difference. First operand 446 states and 446 transitions. Second operand has 91 states, 90 states have (on average 4.944444444444445) internal successors, (445), 91 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:36,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:37:36,164 INFO L93 Difference]: Finished difference Result 453 states and 453 transitions. [2021-08-27 11:37:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-08-27 11:37:36,164 INFO L78 Accepts]: Start accepts. Automaton has has 91 states, 90 states have (on average 4.944444444444445) internal successors, (445), 91 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 445 [2021-08-27 11:37:36,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:37:36,165 INFO L225 Difference]: With dead ends: 453 [2021-08-27 11:37:36,165 INFO L226 Difference]: Without dead ends: 452 [2021-08-27 11:37:36,166 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 89 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3002.9ms TimeCoverageRelationStatistics Valid=4095, Invalid=4095, Unknown=0, NotChecked=0, Total=8190 [2021-08-27 11:37:36,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452 states. [2021-08-27 11:37:36,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452 to 451. [2021-08-27 11:37:36,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 1.0022222222222221) internal successors, (451), 450 states have internal predecessors, (451), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:36,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 451 transitions. [2021-08-27 11:37:36,170 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 451 transitions. Word has length 445 [2021-08-27 11:37:36,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:37:36,170 INFO L470 AbstractCegarLoop]: Abstraction has 451 states and 451 transitions. [2021-08-27 11:37:36,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 91 states, 90 states have (on average 4.944444444444445) internal successors, (445), 91 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:36,170 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 451 transitions. [2021-08-27 11:37:36,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 451 [2021-08-27 11:37:36,172 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:37:36,172 INFO L512 BasicCegarLoop]: trace histogram [90, 89, 89, 89, 89, 1, 1, 1, 1] [2021-08-27 11:37:36,208 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (90)] Ended with exit code 0 [2021-08-27 11:37:36,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 90 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable92 [2021-08-27 11:37:36,373 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:37:36,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:37:36,373 INFO L82 PathProgramCache]: Analyzing trace with hash 309822065, now seen corresponding path program 89 times [2021-08-27 11:37:36,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:37:36,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405878323] [2021-08-27 11:37:36,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:37:36,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:37:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:37:39,665 INFO L134 CoverageAnalysis]: Checked inductivity of 19758 backedges. 0 proven. 19758 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:37:39,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:37:39,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405878323] [2021-08-27 11:37:39,669 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405878323] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:37:39,669 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2127345085] [2021-08-27 11:37:39,669 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:37:39,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:37:39,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:37:39,670 INFO L229 MonitoredProcess]: Starting monitored process 91 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:37:39,680 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Waiting until timeout for monitored process [2021-08-27 11:37:47,580 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 90 check-sat command(s) [2021-08-27 11:37:47,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:37:47,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 1018 conjuncts, 91 conjunts are in the unsatisfiable core [2021-08-27 11:37:47,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:37:48,779 INFO L134 CoverageAnalysis]: Checked inductivity of 19758 backedges. 0 proven. 19758 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:37:48,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2127345085] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:37:48,780 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:37:48,780 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91] total 91 [2021-08-27 11:37:48,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824337443] [2021-08-27 11:37:48,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-08-27 11:37:48,781 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:37:48,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-08-27 11:37:48,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-08-27 11:37:48,782 INFO L87 Difference]: Start difference. First operand 451 states and 451 transitions. Second operand has 92 states, 91 states have (on average 4.945054945054945) internal successors, (450), 92 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:49,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:37:49,006 INFO L93 Difference]: Finished difference Result 458 states and 458 transitions. [2021-08-27 11:37:49,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-27 11:37:49,007 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 4.945054945054945) internal successors, (450), 92 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 450 [2021-08-27 11:37:49,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:37:49,008 INFO L225 Difference]: With dead ends: 458 [2021-08-27 11:37:49,008 INFO L226 Difference]: Without dead ends: 457 [2021-08-27 11:37:49,009 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 540 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3004.6ms TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-08-27 11:37:49,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 457 states. [2021-08-27 11:37:49,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 457 to 456. [2021-08-27 11:37:49,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 1.0021978021978022) internal successors, (456), 455 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:49,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 456 transitions. [2021-08-27 11:37:49,013 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 456 transitions. Word has length 450 [2021-08-27 11:37:49,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:37:49,013 INFO L470 AbstractCegarLoop]: Abstraction has 456 states and 456 transitions. [2021-08-27 11:37:49,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 4.945054945054945) internal successors, (450), 92 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:37:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 456 transitions. [2021-08-27 11:37:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2021-08-27 11:37:49,014 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:37:49,015 INFO L512 BasicCegarLoop]: trace histogram [91, 90, 90, 90, 90, 1, 1, 1, 1] [2021-08-27 11:37:49,052 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (91)] Ended with exit code 0 [2021-08-27 11:37:49,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93,91 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:37:49,215 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:37:49,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:37:49,215 INFO L82 PathProgramCache]: Analyzing trace with hash 2039899941, now seen corresponding path program 90 times [2021-08-27 11:37:49,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:37:49,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285167184] [2021-08-27 11:37:49,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:37:49,216 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:37:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:37:52,527 INFO L134 CoverageAnalysis]: Checked inductivity of 20205 backedges. 0 proven. 20205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:37:52,527 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:37:52,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285167184] [2021-08-27 11:37:52,527 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285167184] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:37:52,527 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1912588369] [2021-08-27 11:37:52,527 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:37:52,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:37:52,528 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:37:52,528 INFO L229 MonitoredProcess]: Starting monitored process 92 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:37:52,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Waiting until timeout for monitored process [2021-08-27 11:38:00,690 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 91 check-sat command(s) [2021-08-27 11:38:00,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:38:00,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 92 conjunts are in the unsatisfiable core [2021-08-27 11:38:00,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:38:01,968 INFO L134 CoverageAnalysis]: Checked inductivity of 20205 backedges. 0 proven. 20205 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:38:01,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1912588369] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:38:01,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:38:01,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [92, 92] total 92 [2021-08-27 11:38:01,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295079938] [2021-08-27 11:38:01,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2021-08-27 11:38:01,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:38:01,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-08-27 11:38:01,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2021-08-27 11:38:01,971 INFO L87 Difference]: Start difference. First operand 456 states and 456 transitions. Second operand has 93 states, 92 states have (on average 4.945652173913044) internal successors, (455), 93 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:02,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:38:02,207 INFO L93 Difference]: Finished difference Result 463 states and 463 transitions. [2021-08-27 11:38:02,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-08-27 11:38:02,208 INFO L78 Accepts]: Start accepts. Automaton has has 93 states, 92 states have (on average 4.945652173913044) internal successors, (455), 93 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 455 [2021-08-27 11:38:02,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:38:02,209 INFO L225 Difference]: With dead ends: 463 [2021-08-27 11:38:02,209 INFO L226 Difference]: Without dead ends: 462 [2021-08-27 11:38:02,209 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 455 SyntacticMatches, 0 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3083.8ms TimeCoverageRelationStatistics Valid=4278, Invalid=4278, Unknown=0, NotChecked=0, Total=8556 [2021-08-27 11:38:02,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2021-08-27 11:38:02,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 461. [2021-08-27 11:38:02,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 460 states have (on average 1.0021739130434784) internal successors, (461), 460 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:02,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 461 transitions. [2021-08-27 11:38:02,213 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 461 transitions. Word has length 455 [2021-08-27 11:38:02,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:38:02,214 INFO L470 AbstractCegarLoop]: Abstraction has 461 states and 461 transitions. [2021-08-27 11:38:02,214 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 92 states have (on average 4.945652173913044) internal successors, (455), 93 states have internal predecessors, (455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:02,214 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 461 transitions. [2021-08-27 11:38:02,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-08-27 11:38:02,215 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:38:02,215 INFO L512 BasicCegarLoop]: trace histogram [92, 91, 91, 91, 91, 1, 1, 1, 1] [2021-08-27 11:38:02,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (92)] Ended with exit code 0 [2021-08-27 11:38:02,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94,92 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:38:02,416 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:38:02,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:38:02,416 INFO L82 PathProgramCache]: Analyzing trace with hash 424563441, now seen corresponding path program 91 times [2021-08-27 11:38:02,416 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:38:02,416 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163266480] [2021-08-27 11:38:02,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:38:02,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:38:02,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:38:05,858 INFO L134 CoverageAnalysis]: Checked inductivity of 20657 backedges. 0 proven. 20657 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:38:05,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:38:05,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163266480] [2021-08-27 11:38:05,859 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163266480] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:38:05,859 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [677307186] [2021-08-27 11:38:05,859 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:38:05,859 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:38:05,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:38:05,860 INFO L229 MonitoredProcess]: Starting monitored process 93 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:38:05,860 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Waiting until timeout for monitored process [2021-08-27 11:38:13,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:38:13,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 1040 conjuncts, 93 conjunts are in the unsatisfiable core [2021-08-27 11:38:13,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:38:15,159 INFO L134 CoverageAnalysis]: Checked inductivity of 20657 backedges. 0 proven. 20657 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:38:15,159 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [677307186] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:38:15,159 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:38:15,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 93 [2021-08-27 11:38:15,160 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640693224] [2021-08-27 11:38:15,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 94 states [2021-08-27 11:38:15,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:38:15,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 94 interpolants. [2021-08-27 11:38:15,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2021-08-27 11:38:15,161 INFO L87 Difference]: Start difference. First operand 461 states and 461 transitions. Second operand has 94 states, 93 states have (on average 4.946236559139785) internal successors, (460), 94 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:15,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:38:15,385 INFO L93 Difference]: Finished difference Result 468 states and 468 transitions. [2021-08-27 11:38:15,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2021-08-27 11:38:15,386 INFO L78 Accepts]: Start accepts. Automaton has has 94 states, 93 states have (on average 4.946236559139785) internal successors, (460), 94 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 460 [2021-08-27 11:38:15,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:38:15,387 INFO L225 Difference]: With dead ends: 468 [2021-08-27 11:38:15,387 INFO L226 Difference]: Without dead ends: 467 [2021-08-27 11:38:15,388 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 552 GetRequests, 460 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3213.6ms TimeCoverageRelationStatistics Valid=4371, Invalid=4371, Unknown=0, NotChecked=0, Total=8742 [2021-08-27 11:38:15,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-08-27 11:38:15,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 466. [2021-08-27 11:38:15,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 465 states have (on average 1.0021505376344086) internal successors, (466), 465 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:15,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 466 transitions. [2021-08-27 11:38:15,392 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 466 transitions. Word has length 460 [2021-08-27 11:38:15,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:38:15,392 INFO L470 AbstractCegarLoop]: Abstraction has 466 states and 466 transitions. [2021-08-27 11:38:15,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 94 states, 93 states have (on average 4.946236559139785) internal successors, (460), 94 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:15,393 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 466 transitions. [2021-08-27 11:38:15,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2021-08-27 11:38:15,394 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:38:15,395 INFO L512 BasicCegarLoop]: trace histogram [93, 92, 92, 92, 92, 1, 1, 1, 1] [2021-08-27 11:38:15,434 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (93)] Forceful destruction successful, exit code 0 [2021-08-27 11:38:15,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95,93 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:38:15,595 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:38:15,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:38:15,596 INFO L82 PathProgramCache]: Analyzing trace with hash 317580965, now seen corresponding path program 92 times [2021-08-27 11:38:15,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:38:15,596 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963060909] [2021-08-27 11:38:15,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:38:15,596 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:38:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:38:19,121 INFO L134 CoverageAnalysis]: Checked inductivity of 21114 backedges. 0 proven. 21114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:38:19,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:38:19,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963060909] [2021-08-27 11:38:19,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963060909] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:38:19,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779424199] [2021-08-27 11:38:19,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:38:19,122 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:38:19,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:38:19,122 INFO L229 MonitoredProcess]: Starting monitored process 94 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:38:19,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Waiting until timeout for monitored process [2021-08-27 11:38:27,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:38:27,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:38:27,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 1051 conjuncts, 94 conjunts are in the unsatisfiable core [2021-08-27 11:38:27,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:38:28,619 INFO L134 CoverageAnalysis]: Checked inductivity of 21114 backedges. 0 proven. 21114 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:38:28,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779424199] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:38:28,619 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:38:28,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 94] total 94 [2021-08-27 11:38:28,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325984393] [2021-08-27 11:38:28,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2021-08-27 11:38:28,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:38:28,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2021-08-27 11:38:28,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2021-08-27 11:38:28,621 INFO L87 Difference]: Start difference. First operand 466 states and 466 transitions. Second operand has 95 states, 94 states have (on average 4.946808510638298) internal successors, (465), 95 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:28,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:38:28,854 INFO L93 Difference]: Finished difference Result 473 states and 473 transitions. [2021-08-27 11:38:28,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2021-08-27 11:38:28,855 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 94 states have (on average 4.946808510638298) internal successors, (465), 95 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 465 [2021-08-27 11:38:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:38:28,856 INFO L225 Difference]: With dead ends: 473 [2021-08-27 11:38:28,856 INFO L226 Difference]: Without dead ends: 472 [2021-08-27 11:38:28,857 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 558 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3295.3ms TimeCoverageRelationStatistics Valid=4465, Invalid=4465, Unknown=0, NotChecked=0, Total=8930 [2021-08-27 11:38:28,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 472 states. [2021-08-27 11:38:28,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 472 to 471. [2021-08-27 11:38:28,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 471 states, 470 states have (on average 1.0021276595744681) internal successors, (471), 470 states have internal predecessors, (471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:28,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 471 states to 471 states and 471 transitions. [2021-08-27 11:38:28,861 INFO L78 Accepts]: Start accepts. Automaton has 471 states and 471 transitions. Word has length 465 [2021-08-27 11:38:28,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:38:28,861 INFO L470 AbstractCegarLoop]: Abstraction has 471 states and 471 transitions. [2021-08-27 11:38:28,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 94 states have (on average 4.946808510638298) internal successors, (465), 95 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:28,862 INFO L276 IsEmpty]: Start isEmpty. Operand 471 states and 471 transitions. [2021-08-27 11:38:28,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 471 [2021-08-27 11:38:28,864 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:38:28,864 INFO L512 BasicCegarLoop]: trace histogram [94, 93, 93, 93, 93, 1, 1, 1, 1] [2021-08-27 11:38:28,904 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (94)] Ended with exit code 0 [2021-08-27 11:38:29,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96,94 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:38:29,065 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:38:29,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:38:29,065 INFO L82 PathProgramCache]: Analyzing trace with hash 1346012017, now seen corresponding path program 93 times [2021-08-27 11:38:29,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:38:29,065 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255749400] [2021-08-27 11:38:29,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:38:29,065 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:38:29,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:38:32,655 INFO L134 CoverageAnalysis]: Checked inductivity of 21576 backedges. 0 proven. 21576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:38:32,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:38:32,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255749400] [2021-08-27 11:38:32,655 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255749400] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:38:32,655 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [454950022] [2021-08-27 11:38:32,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:38:32,655 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:38:32,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:38:32,659 INFO L229 MonitoredProcess]: Starting monitored process 95 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:38:32,660 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Waiting until timeout for monitored process [2021-08-27 11:38:41,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 94 check-sat command(s) [2021-08-27 11:38:41,293 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:38:41,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 1062 conjuncts, 95 conjunts are in the unsatisfiable core [2021-08-27 11:38:41,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:38:42,505 INFO L134 CoverageAnalysis]: Checked inductivity of 21576 backedges. 0 proven. 21576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:38:42,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [454950022] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:38:42,506 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:38:42,506 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 95] total 95 [2021-08-27 11:38:42,506 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168525819] [2021-08-27 11:38:42,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-08-27 11:38:42,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:38:42,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-08-27 11:38:42,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-08-27 11:38:42,507 INFO L87 Difference]: Start difference. First operand 471 states and 471 transitions. Second operand has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:42,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:38:42,757 INFO L93 Difference]: Finished difference Result 478 states and 478 transitions. [2021-08-27 11:38:42,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-08-27 11:38:42,757 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 470 [2021-08-27 11:38:42,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:38:42,759 INFO L225 Difference]: With dead ends: 478 [2021-08-27 11:38:42,759 INFO L226 Difference]: Without dead ends: 477 [2021-08-27 11:38:42,759 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 470 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3355.0ms TimeCoverageRelationStatistics Valid=4560, Invalid=4560, Unknown=0, NotChecked=0, Total=9120 [2021-08-27 11:38:42,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2021-08-27 11:38:42,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 476. [2021-08-27 11:38:42,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 476 states, 475 states have (on average 1.0021052631578948) internal successors, (476), 475 states have internal predecessors, (476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:42,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 476 transitions. [2021-08-27 11:38:42,763 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 476 transitions. Word has length 470 [2021-08-27 11:38:42,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:38:42,763 INFO L470 AbstractCegarLoop]: Abstraction has 476 states and 476 transitions. [2021-08-27 11:38:42,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 4.947368421052632) internal successors, (470), 96 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:42,764 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 476 transitions. [2021-08-27 11:38:42,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 476 [2021-08-27 11:38:42,765 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:38:42,765 INFO L512 BasicCegarLoop]: trace histogram [95, 94, 94, 94, 94, 1, 1, 1, 1] [2021-08-27 11:38:42,805 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (95)] Ended with exit code 0 [2021-08-27 11:38:42,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 95 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable97 [2021-08-27 11:38:42,966 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:38:42,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:38:42,966 INFO L82 PathProgramCache]: Analyzing trace with hash 311166501, now seen corresponding path program 94 times [2021-08-27 11:38:42,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:38:42,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521394166] [2021-08-27 11:38:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:38:42,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:38:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:38:46,656 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:38:46,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:38:46,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521394166] [2021-08-27 11:38:46,657 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521394166] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:38:46,657 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443933565] [2021-08-27 11:38:46,657 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:38:46,657 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:38:46,657 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:38:46,658 INFO L229 MonitoredProcess]: Starting monitored process 96 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:38:46,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Waiting until timeout for monitored process [2021-08-27 11:38:55,291 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:38:55,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:38:55,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 1073 conjuncts, 96 conjunts are in the unsatisfiable core [2021-08-27 11:38:55,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:38:56,524 INFO L134 CoverageAnalysis]: Checked inductivity of 22043 backedges. 0 proven. 22043 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:38:56,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443933565] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:38:56,524 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:38:56,524 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96] total 96 [2021-08-27 11:38:56,524 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733080060] [2021-08-27 11:38:56,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2021-08-27 11:38:56,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:38:56,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2021-08-27 11:38:56,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2021-08-27 11:38:56,526 INFO L87 Difference]: Start difference. First operand 476 states and 476 transitions. Second operand has 97 states, 96 states have (on average 4.947916666666667) internal successors, (475), 97 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:56,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:38:56,757 INFO L93 Difference]: Finished difference Result 483 states and 483 transitions. [2021-08-27 11:38:56,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-27 11:38:56,757 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 96 states have (on average 4.947916666666667) internal successors, (475), 97 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 475 [2021-08-27 11:38:56,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:38:56,758 INFO L225 Difference]: With dead ends: 483 [2021-08-27 11:38:56,758 INFO L226 Difference]: Without dead ends: 482 [2021-08-27 11:38:56,759 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 570 GetRequests, 475 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3373.6ms TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2021-08-27 11:38:56,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2021-08-27 11:38:56,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 481. [2021-08-27 11:38:56,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 1.0020833333333334) internal successors, (481), 480 states have internal predecessors, (481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:56,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 481 transitions. [2021-08-27 11:38:56,763 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 481 transitions. Word has length 475 [2021-08-27 11:38:56,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:38:56,763 INFO L470 AbstractCegarLoop]: Abstraction has 481 states and 481 transitions. [2021-08-27 11:38:56,763 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 96 states have (on average 4.947916666666667) internal successors, (475), 97 states have internal predecessors, (475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:38:56,763 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 481 transitions. [2021-08-27 11:38:56,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-08-27 11:38:56,765 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:38:56,765 INFO L512 BasicCegarLoop]: trace histogram [96, 95, 95, 95, 95, 1, 1, 1, 1] [2021-08-27 11:38:56,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (96)] Forceful destruction successful, exit code 0 [2021-08-27 11:38:56,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 96 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable98 [2021-08-27 11:38:56,966 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:38:56,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:38:56,966 INFO L82 PathProgramCache]: Analyzing trace with hash 604247025, now seen corresponding path program 95 times [2021-08-27 11:38:56,966 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:38:56,966 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59288331] [2021-08-27 11:38:56,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:38:56,966 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:38:57,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:39:00,743 INFO L134 CoverageAnalysis]: Checked inductivity of 22515 backedges. 0 proven. 22515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:39:00,743 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:39:00,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59288331] [2021-08-27 11:39:00,744 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59288331] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:39:00,744 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828036304] [2021-08-27 11:39:00,744 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:39:00,744 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:39:00,744 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:39:00,745 INFO L229 MonitoredProcess]: Starting monitored process 97 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:39:00,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Waiting until timeout for monitored process [2021-08-27 11:39:09,731 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 96 check-sat command(s) [2021-08-27 11:39:09,731 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:39:09,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 97 conjunts are in the unsatisfiable core [2021-08-27 11:39:09,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:39:10,983 INFO L134 CoverageAnalysis]: Checked inductivity of 22515 backedges. 0 proven. 22515 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:39:10,983 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828036304] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:39:10,983 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:39:10,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 97 [2021-08-27 11:39:10,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181921310] [2021-08-27 11:39:10,984 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2021-08-27 11:39:10,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:39:10,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-08-27 11:39:10,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2021-08-27 11:39:10,986 INFO L87 Difference]: Start difference. First operand 481 states and 481 transitions. Second operand has 98 states, 97 states have (on average 4.948453608247423) internal successors, (480), 98 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:11,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:39:11,223 INFO L93 Difference]: Finished difference Result 488 states and 488 transitions. [2021-08-27 11:39:11,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2021-08-27 11:39:11,224 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 4.948453608247423) internal successors, (480), 98 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 480 [2021-08-27 11:39:11,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:39:11,225 INFO L225 Difference]: With dead ends: 488 [2021-08-27 11:39:11,225 INFO L226 Difference]: Without dead ends: 487 [2021-08-27 11:39:11,226 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3500.1ms TimeCoverageRelationStatistics Valid=4753, Invalid=4753, Unknown=0, NotChecked=0, Total=9506 [2021-08-27 11:39:11,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2021-08-27 11:39:11,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 486. [2021-08-27 11:39:11,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 485 states have (on average 1.002061855670103) internal successors, (486), 485 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:11,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 486 transitions. [2021-08-27 11:39:11,232 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 486 transitions. Word has length 480 [2021-08-27 11:39:11,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:39:11,232 INFO L470 AbstractCegarLoop]: Abstraction has 486 states and 486 transitions. [2021-08-27 11:39:11,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 4.948453608247423) internal successors, (480), 98 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:11,233 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 486 transitions. [2021-08-27 11:39:11,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2021-08-27 11:39:11,236 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:39:11,236 INFO L512 BasicCegarLoop]: trace histogram [97, 96, 96, 96, 96, 1, 1, 1, 1] [2021-08-27 11:39:11,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (97)] Forceful destruction successful, exit code 0 [2021-08-27 11:39:11,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable99 [2021-08-27 11:39:11,441 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:39:11,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:39:11,441 INFO L82 PathProgramCache]: Analyzing trace with hash -928463451, now seen corresponding path program 96 times [2021-08-27 11:39:11,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:39:11,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439326932] [2021-08-27 11:39:11,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:39:11,441 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:39:11,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:39:15,344 INFO L134 CoverageAnalysis]: Checked inductivity of 22992 backedges. 0 proven. 22992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:39:15,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:39:15,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439326932] [2021-08-27 11:39:15,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439326932] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:39:15,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852841933] [2021-08-27 11:39:15,345 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-27 11:39:15,345 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:39:15,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:39:15,345 INFO L229 MonitoredProcess]: Starting monitored process 98 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:39:15,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Waiting until timeout for monitored process [2021-08-27 11:39:24,434 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 97 check-sat command(s) [2021-08-27 11:39:24,435 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:39:24,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 1095 conjuncts, 98 conjunts are in the unsatisfiable core [2021-08-27 11:39:24,441 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:39:25,717 INFO L134 CoverageAnalysis]: Checked inductivity of 22992 backedges. 0 proven. 22992 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:39:25,717 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852841933] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:39:25,717 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:39:25,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [98, 98] total 98 [2021-08-27 11:39:25,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495493035] [2021-08-27 11:39:25,718 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2021-08-27 11:39:25,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:39:25,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2021-08-27 11:39:25,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2021-08-27 11:39:25,720 INFO L87 Difference]: Start difference. First operand 486 states and 486 transitions. Second operand has 99 states, 98 states have (on average 4.948979591836735) internal successors, (485), 99 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:26,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:39:26,000 INFO L93 Difference]: Finished difference Result 493 states and 493 transitions. [2021-08-27 11:39:26,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-08-27 11:39:26,001 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 98 states have (on average 4.948979591836735) internal successors, (485), 99 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 485 [2021-08-27 11:39:26,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:39:26,002 INFO L225 Difference]: With dead ends: 493 [2021-08-27 11:39:26,002 INFO L226 Difference]: Without dead ends: 492 [2021-08-27 11:39:26,003 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 485 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3631.2ms TimeCoverageRelationStatistics Valid=4851, Invalid=4851, Unknown=0, NotChecked=0, Total=9702 [2021-08-27 11:39:26,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 492 states. [2021-08-27 11:39:26,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 492 to 491. [2021-08-27 11:39:26,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 491 states, 490 states have (on average 1.0020408163265306) internal successors, (491), 490 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:26,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 491 transitions. [2021-08-27 11:39:26,007 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 491 transitions. Word has length 485 [2021-08-27 11:39:26,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:39:26,007 INFO L470 AbstractCegarLoop]: Abstraction has 491 states and 491 transitions. [2021-08-27 11:39:26,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 98 states have (on average 4.948979591836735) internal successors, (485), 99 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:26,007 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 491 transitions. [2021-08-27 11:39:26,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 491 [2021-08-27 11:39:26,009 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:39:26,009 INFO L512 BasicCegarLoop]: trace histogram [98, 97, 97, 97, 97, 1, 1, 1, 1] [2021-08-27 11:39:26,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (98)] Forceful destruction successful, exit code 0 [2021-08-27 11:39:26,209 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100,98 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:39:26,210 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:39:26,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:39:26,210 INFO L82 PathProgramCache]: Analyzing trace with hash -1485634447, now seen corresponding path program 97 times [2021-08-27 11:39:26,210 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:39:26,210 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470420515] [2021-08-27 11:39:26,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:39:26,210 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:39:26,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:39:30,151 INFO L134 CoverageAnalysis]: Checked inductivity of 23474 backedges. 0 proven. 23474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:39:30,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:39:30,151 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470420515] [2021-08-27 11:39:30,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470420515] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:39:30,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156998886] [2021-08-27 11:39:30,152 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-27 11:39:30,152 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:39:30,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:39:30,153 INFO L229 MonitoredProcess]: Starting monitored process 99 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:39:30,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Waiting until timeout for monitored process [2021-08-27 11:39:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:39:39,275 INFO L263 TraceCheckSpWp]: Trace formula consists of 1106 conjuncts, 99 conjunts are in the unsatisfiable core [2021-08-27 11:39:39,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:39:40,568 INFO L134 CoverageAnalysis]: Checked inductivity of 23474 backedges. 0 proven. 23474 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:39:40,568 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156998886] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:39:40,568 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:39:40,568 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99] total 99 [2021-08-27 11:39:40,568 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242379218] [2021-08-27 11:39:40,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2021-08-27 11:39:40,569 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:39:40,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-08-27 11:39:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2021-08-27 11:39:40,570 INFO L87 Difference]: Start difference. First operand 491 states and 491 transitions. Second operand has 100 states, 99 states have (on average 4.94949494949495) internal successors, (490), 100 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:40,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:39:40,817 INFO L93 Difference]: Finished difference Result 498 states and 498 transitions. [2021-08-27 11:39:40,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-08-27 11:39:40,818 INFO L78 Accepts]: Start accepts. Automaton has has 100 states, 99 states have (on average 4.94949494949495) internal successors, (490), 100 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 490 [2021-08-27 11:39:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:39:40,819 INFO L225 Difference]: With dead ends: 498 [2021-08-27 11:39:40,819 INFO L226 Difference]: Without dead ends: 497 [2021-08-27 11:39:40,820 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 588 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3678.3ms TimeCoverageRelationStatistics Valid=4950, Invalid=4950, Unknown=0, NotChecked=0, Total=9900 [2021-08-27 11:39:40,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2021-08-27 11:39:40,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 496. [2021-08-27 11:39:40,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 496 states, 495 states have (on average 1.002020202020202) internal successors, (496), 495 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:40,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 496 states to 496 states and 496 transitions. [2021-08-27 11:39:40,825 INFO L78 Accepts]: Start accepts. Automaton has 496 states and 496 transitions. Word has length 490 [2021-08-27 11:39:40,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:39:40,825 INFO L470 AbstractCegarLoop]: Abstraction has 496 states and 496 transitions. [2021-08-27 11:39:40,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 100 states, 99 states have (on average 4.94949494949495) internal successors, (490), 100 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:40,826 INFO L276 IsEmpty]: Start isEmpty. Operand 496 states and 496 transitions. [2021-08-27 11:39:40,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2021-08-27 11:39:40,827 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:39:40,828 INFO L512 BasicCegarLoop]: trace histogram [99, 98, 98, 98, 98, 1, 1, 1, 1] [2021-08-27 11:39:40,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (99)] Ended with exit code 0 [2021-08-27 11:39:41,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 99 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable101 [2021-08-27 11:39:41,028 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:39:41,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:39:41,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1619253979, now seen corresponding path program 98 times [2021-08-27 11:39:41,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:39:41,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573007029] [2021-08-27 11:39:41,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:39:41,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:39:41,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:39:45,078 INFO L134 CoverageAnalysis]: Checked inductivity of 23961 backedges. 0 proven. 23961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:39:45,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:39:45,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573007029] [2021-08-27 11:39:45,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1573007029] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:39:45,079 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192740713] [2021-08-27 11:39:45,079 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-27 11:39:45,079 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:39:45,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:39:45,080 INFO L229 MonitoredProcess]: Starting monitored process 100 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:39:45,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Waiting until timeout for monitored process [2021-08-27 11:39:54,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-27 11:39:54,465 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:39:54,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 1117 conjuncts, 100 conjunts are in the unsatisfiable core [2021-08-27 11:39:54,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:39:55,763 INFO L134 CoverageAnalysis]: Checked inductivity of 23961 backedges. 0 proven. 23961 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:39:55,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192740713] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:39:55,763 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:39:55,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [100, 100] total 100 [2021-08-27 11:39:55,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080790862] [2021-08-27 11:39:55,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2021-08-27 11:39:55,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:39:55,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2021-08-27 11:39:55,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2021-08-27 11:39:55,766 INFO L87 Difference]: Start difference. First operand 496 states and 496 transitions. Second operand has 101 states, 100 states have (on average 4.95) internal successors, (495), 101 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:56,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:39:56,018 INFO L93 Difference]: Finished difference Result 503 states and 503 transitions. [2021-08-27 11:39:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2021-08-27 11:39:56,019 INFO L78 Accepts]: Start accepts. Automaton has has 101 states, 100 states have (on average 4.95) internal successors, (495), 101 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 495 [2021-08-27 11:39:56,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:39:56,020 INFO L225 Difference]: With dead ends: 503 [2021-08-27 11:39:56,020 INFO L226 Difference]: Without dead ends: 502 [2021-08-27 11:39:56,020 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 495 SyntacticMatches, 0 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3709.8ms TimeCoverageRelationStatistics Valid=5050, Invalid=5050, Unknown=0, NotChecked=0, Total=10100 [2021-08-27 11:39:56,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2021-08-27 11:39:56,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 501. [2021-08-27 11:39:56,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.002) internal successors, (501), 500 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:56,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 501 transitions. [2021-08-27 11:39:56,025 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 501 transitions. Word has length 495 [2021-08-27 11:39:56,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:39:56,026 INFO L470 AbstractCegarLoop]: Abstraction has 501 states and 501 transitions. [2021-08-27 11:39:56,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 100 states have (on average 4.95) internal successors, (495), 101 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:39:56,026 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 501 transitions. [2021-08-27 11:39:56,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 501 [2021-08-27 11:39:56,027 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:39:56,028 INFO L512 BasicCegarLoop]: trace histogram [100, 99, 99, 99, 99, 1, 1, 1, 1] [2021-08-27 11:39:56,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (100)] Ended with exit code 0 [2021-08-27 11:39:56,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102,100 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:39:56,228 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:39:56,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:39:56,229 INFO L82 PathProgramCache]: Analyzing trace with hash 323966193, now seen corresponding path program 99 times [2021-08-27 11:39:56,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:39:56,229 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473147215] [2021-08-27 11:39:56,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:39:56,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:39:56,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:40:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 24453 backedges. 0 proven. 24453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:40:00,373 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:40:00,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473147215] [2021-08-27 11:40:00,373 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473147215] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:40:00,373 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379660149] [2021-08-27 11:40:00,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-27 11:40:00,373 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:40:00,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:40:00,374 INFO L229 MonitoredProcess]: Starting monitored process 101 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:40:00,375 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Waiting until timeout for monitored process [2021-08-27 11:40:10,145 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 100 check-sat command(s) [2021-08-27 11:40:10,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:40:10,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 1128 conjuncts, 101 conjunts are in the unsatisfiable core [2021-08-27 11:40:10,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:40:11,475 INFO L134 CoverageAnalysis]: Checked inductivity of 24453 backedges. 0 proven. 24453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:40:11,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379660149] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:40:11,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:40:11,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101] total 101 [2021-08-27 11:40:11,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539836381] [2021-08-27 11:40:11,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2021-08-27 11:40:11,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:40:11,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2021-08-27 11:40:11,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2021-08-27 11:40:11,477 INFO L87 Difference]: Start difference. First operand 501 states and 501 transitions. Second operand has 102 states, 101 states have (on average 4.9504950495049505) internal successors, (500), 102 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:40:11,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:40:11,729 INFO L93 Difference]: Finished difference Result 508 states and 508 transitions. [2021-08-27 11:40:11,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2021-08-27 11:40:11,730 INFO L78 Accepts]: Start accepts. Automaton has has 102 states, 101 states have (on average 4.9504950495049505) internal successors, (500), 102 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 500 [2021-08-27 11:40:11,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:40:11,731 INFO L225 Difference]: With dead ends: 508 [2021-08-27 11:40:11,731 INFO L226 Difference]: Without dead ends: 507 [2021-08-27 11:40:11,732 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 600 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3800.9ms TimeCoverageRelationStatistics Valid=5151, Invalid=5151, Unknown=0, NotChecked=0, Total=10302 [2021-08-27 11:40:11,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2021-08-27 11:40:11,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 506. [2021-08-27 11:40:11,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.001980198019802) internal successors, (506), 505 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:40:11,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 506 transitions. [2021-08-27 11:40:11,738 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 506 transitions. Word has length 500 [2021-08-27 11:40:11,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:40:11,739 INFO L470 AbstractCegarLoop]: Abstraction has 506 states and 506 transitions. [2021-08-27 11:40:11,739 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 101 states have (on average 4.9504950495049505) internal successors, (500), 102 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:40:11,739 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 506 transitions. [2021-08-27 11:40:11,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 506 [2021-08-27 11:40:11,741 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:40:11,742 INFO L512 BasicCegarLoop]: trace histogram [101, 100, 100, 100, 100, 1, 1, 1, 1] [2021-08-27 11:40:11,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (101)] Forceful destruction successful, exit code 0 [2021-08-27 11:40:11,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 101 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable103 [2021-08-27 11:40:11,961 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:40:11,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:40:11,961 INFO L82 PathProgramCache]: Analyzing trace with hash -1690426203, now seen corresponding path program 100 times [2021-08-27 11:40:11,961 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:40:11,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410367515] [2021-08-27 11:40:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:40:11,962 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:40:12,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:40:16,280 INFO L134 CoverageAnalysis]: Checked inductivity of 24950 backedges. 0 proven. 24950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:40:16,280 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:40:16,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410367515] [2021-08-27 11:40:16,280 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410367515] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:40:16,280 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882367854] [2021-08-27 11:40:16,280 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-27 11:40:16,280 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:40:16,280 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:40:16,281 INFO L229 MonitoredProcess]: Starting monitored process 102 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:40:16,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Waiting until timeout for monitored process [2021-08-27 11:40:26,212 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-27 11:40:26,212 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:40:26,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 1139 conjuncts, 102 conjunts are in the unsatisfiable core [2021-08-27 11:40:26,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:40:27,547 INFO L134 CoverageAnalysis]: Checked inductivity of 24950 backedges. 0 proven. 24950 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:40:27,547 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882367854] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:40:27,547 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-27 11:40:27,547 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 102] total 102 [2021-08-27 11:40:27,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200333224] [2021-08-27 11:40:27,548 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 103 states [2021-08-27 11:40:27,548 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:40:27,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 103 interpolants. [2021-08-27 11:40:27,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2021-08-27 11:40:27,549 INFO L87 Difference]: Start difference. First operand 506 states and 506 transitions. Second operand has 103 states, 102 states have (on average 4.950980392156863) internal successors, (505), 103 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:40:27,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:40:27,874 INFO L93 Difference]: Finished difference Result 513 states and 513 transitions. [2021-08-27 11:40:27,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-27 11:40:27,874 INFO L78 Accepts]: Start accepts. Automaton has has 103 states, 102 states have (on average 4.950980392156863) internal successors, (505), 103 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 505 [2021-08-27 11:40:27,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:40:27,875 INFO L225 Difference]: With dead ends: 513 [2021-08-27 11:40:27,875 INFO L226 Difference]: Without dead ends: 512 [2021-08-27 11:40:27,876 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 606 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4016.3ms TimeCoverageRelationStatistics Valid=5253, Invalid=5253, Unknown=0, NotChecked=0, Total=10506 [2021-08-27 11:40:27,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states. [2021-08-27 11:40:27,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 511. [2021-08-27 11:40:27,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 511 states, 510 states have (on average 1.0019607843137255) internal successors, (511), 510 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:40:27,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 511 states and 511 transitions. [2021-08-27 11:40:27,880 INFO L78 Accepts]: Start accepts. Automaton has 511 states and 511 transitions. Word has length 505 [2021-08-27 11:40:27,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:40:27,880 INFO L470 AbstractCegarLoop]: Abstraction has 511 states and 511 transitions. [2021-08-27 11:40:27,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 103 states, 102 states have (on average 4.950980392156863) internal successors, (505), 103 states have internal predecessors, (505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:40:27,881 INFO L276 IsEmpty]: Start isEmpty. Operand 511 states and 511 transitions. [2021-08-27 11:40:27,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2021-08-27 11:40:27,882 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 11:40:27,882 INFO L512 BasicCegarLoop]: trace histogram [102, 101, 101, 101, 101, 1, 1, 1, 1] [2021-08-27 11:40:27,928 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (102)] Forceful destruction successful, exit code 0 [2021-08-27 11:40:28,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104,102 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:40:28,083 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 11:40:28,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 11:40:28,083 INFO L82 PathProgramCache]: Analyzing trace with hash 1180763505, now seen corresponding path program 101 times [2021-08-27 11:40:28,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 11:40:28,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157369901] [2021-08-27 11:40:28,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 11:40:28,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 11:40:28,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 11:40:32,248 INFO L134 CoverageAnalysis]: Checked inductivity of 25452 backedges. 0 proven. 25452 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 11:40:32,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 11:40:32,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157369901] [2021-08-27 11:40:32,248 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157369901] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-27 11:40:32,248 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247018191] [2021-08-27 11:40:32,248 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-27 11:40:32,248 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-27 11:40:32,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 11:40:32,249 INFO L229 MonitoredProcess]: Starting monitored process 103 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-27 11:40:32,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Waiting until timeout for monitored process [2021-08-27 11:40:42,698 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 102 check-sat command(s) [2021-08-27 11:40:42,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-27 11:40:42,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 202 conjunts are in the unsatisfiable core [2021-08-27 11:40:42,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 11:41:03,771 INFO L134 CoverageAnalysis]: Checked inductivity of 25452 backedges. 25451 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 11:41:03,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247018191] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 11:41:03,772 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-27 11:41:03,772 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [203] imperfect sequences [103] total 305 [2021-08-27 11:41:03,772 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855444067] [2021-08-27 11:41:03,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 203 states [2021-08-27 11:41:03,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 11:41:03,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 203 interpolants. [2021-08-27 11:41:03,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15758, Invalid=76962, Unknown=0, NotChecked=0, Total=92720 [2021-08-27 11:41:03,781 INFO L87 Difference]: Start difference. First operand 511 states and 511 transitions. Second operand has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:13,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 11:41:13,111 INFO L93 Difference]: Finished difference Result 511 states and 511 transitions. [2021-08-27 11:41:13,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 203 states. [2021-08-27 11:41:13,112 INFO L78 Accepts]: Start accepts. Automaton has has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 510 [2021-08-27 11:41:13,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 11:41:13,115 INFO L225 Difference]: With dead ends: 511 [2021-08-27 11:41:13,115 INFO L226 Difference]: Without dead ends: 0 [2021-08-27 11:41:13,123 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 712 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 403 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40002 ImplicationChecksByTransitivity, 29902.6ms TimeCoverageRelationStatistics Valid=31008, Invalid=132612, Unknown=0, NotChecked=0, Total=163620 [2021-08-27 11:41:13,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-27 11:41:13,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-27 11:41:13,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:13,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 11:41:13,124 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 510 [2021-08-27 11:41:13,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 11:41:13,124 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 11:41:13,125 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 203 states, 203 states have (on average 2.5123152709359604) internal successors, (510), 203 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 11:41:13,125 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-27 11:41:13,125 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-27 11:41:13,127 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:13,127 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:13,128 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:13,128 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 11:41:13,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (103)] Forceful destruction successful, exit code 0 [2021-08-27 11:41:13,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 103 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable105 [2021-08-27 11:41:13,334 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-27 11:41:13,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:13,471 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 11:41:15,766 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-08-27 11:41:15,766 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-27 11:41:15,767 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-08-27 11:41:15,767 INFO L857 garLoopResultBuilder]: For program point L25(line 25) no Hoare annotation was computed. [2021-08-27 11:41:15,767 INFO L857 garLoopResultBuilder]: For program point L25-1(line 25) no Hoare annotation was computed. [2021-08-27 11:41:15,768 INFO L853 garLoopResultBuilder]: At program point L23-2(lines 23 26) the Hoare annotation is: (let ((.cse0 (<= 0 ULTIMATE.start_main_~j~0))) (or (and (<= 41 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 82) .cse0) (and (<= 45 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 90) .cse0) (and (<= ULTIMATE.start_main_~j~0 172) (<= 86 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 198) (<= 99 ULTIMATE.start_main_~i~0) .cse0) (and (<= 38 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 76) .cse0) (and (<= 88 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 176) .cse0) (and (<= ULTIMATE.start_main_~j~0 180) (<= 90 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 116) (<= 58 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 168) (<= 84 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 92) .cse0 (<= 46 ULTIMATE.start_main_~i~0)) (and (<= 6 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 12) .cse0) (and (<= 66 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 132) .cse0) (and (<= ULTIMATE.start_main_~j~0 100) (<= 50 ULTIMATE.start_main_~i~0) .cse0) (and (<= 75 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 150) .cse0) (and (<= ULTIMATE.start_main_~j~0 138) (<= 69 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 156) (<= 78 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 108) (<= 54 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 20) (<= 10 ULTIMATE.start_main_~i~0) .cse0) (and (<= 27 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 54) .cse0) (and (<= ULTIMATE.start_main_~j~0 188) (<= 94 ULTIMATE.start_main_~i~0) .cse0) (and (<= 49 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 98) .cse0) (and (<= ULTIMATE.start_main_~j~0 128) (<= 64 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 152) (<= 76 ULTIMATE.start_main_~i~0) .cse0) (and (<= 59 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 118) .cse0) (and (<= 34 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 68) .cse0) (and (<= ULTIMATE.start_main_~j~0 38) (<= 19 ULTIMATE.start_main_~i~0) .cse0) (and (<= 87 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 174) .cse0) (and (<= ULTIMATE.start_main_~j~0 104) (<= 52 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 58) (<= 29 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 96) (<= 48 ULTIMATE.start_main_~i~0) .cse0) (and (<= 56 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 112) .cse0) (and .cse0 (<= ULTIMATE.start_main_~j~0 192) (<= 96 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 102) (<= 51 ULTIMATE.start_main_~i~0) .cse0) (and (<= 5 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 10) .cse0) (and (<= 65 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 130) .cse0) (and (<= ULTIMATE.start_main_~j~0 88) (<= 44 ULTIMATE.start_main_~i~0) .cse0) (and (<= 77 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 154) .cse0) (and (<= ULTIMATE.start_main_~j~0 64) .cse0 (<= 32 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 66) (<= 33 ULTIMATE.start_main_~i~0) .cse0) (and (<= 36 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 72) .cse0) (and (<= ULTIMATE.start_main_~j~0 44) (<= 22 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 0) (= ULTIMATE.start_main_~i~0 0) .cse0) (and (<= 28 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 56) .cse0) (and (<= ULTIMATE.start_main_~j~0 32) .cse0 (<= 16 ULTIMATE.start_main_~i~0)) (and (<= ULTIMATE.start_main_~j~0 22) (<= 11 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 178) (<= 89 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 52) (<= 26 ULTIMATE.start_main_~i~0) .cse0) (and (<= 8 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 16) .cse0) (and (<= ULTIMATE.start_main_~j~0 86) (<= 43 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 80) (<= 40 ULTIMATE.start_main_~i~0) .cse0) (and (<= 39 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 78) .cse0) (and (<= 70 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 140) .cse0) (and (<= ULTIMATE.start_main_~j~0 186) (<= 93 ULTIMATE.start_main_~i~0) .cse0) (and (<= 4 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 8) .cse0) (and (<= 14 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 28) .cse0) (and (<= 81 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 162) .cse0) (and (<= 1 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 2) .cse0) (and (<= 60 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 120) .cse0) (and (<= ULTIMATE.start_main_~j~0 46) (<= 23 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 122) (<= 61 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 194) (<= 97 ULTIMATE.start_main_~i~0) .cse0) (and (<= 98 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 196)) (and (<= 57 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 114) .cse0) (and (<= ULTIMATE.start_main_~j~0 110) (<= 55 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 144) (<= 72 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 84) (<= 42 ULTIMATE.start_main_~i~0) .cse0) (and (<= 3 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 6) .cse0) (and (<= 30 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 60) .cse0) (and (<= ULTIMATE.start_main_~j~0 62) (<= 31 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 24) (<= 12 ULTIMATE.start_main_~i~0) .cse0) (and (<= 73 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 146) .cse0) (and (<= 15 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 30) .cse0) (and (<= 79 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 158) .cse0) (and (<= ULTIMATE.start_main_~j~0 42) (<= 21 ULTIMATE.start_main_~i~0) .cse0) (and (<= 82 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 164) .cse0) (and (<= ULTIMATE.start_main_~j~0 106) (<= 53 ULTIMATE.start_main_~i~0) .cse0) (and (<= 91 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 182) .cse0) (and (<= ULTIMATE.start_main_~j~0 184) (<= 92 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 126) (<= 63 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 74) (<= 37 ULTIMATE.start_main_~i~0) .cse0) (and (<= 47 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 94) .cse0) (and (<= 9 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 18) .cse0) (and (<= 62 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 124) .cse0) (and (<= ULTIMATE.start_main_~j~0 142) (<= 71 ULTIMATE.start_main_~i~0) .cse0) (and (<= 95 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 190) .cse0) (and (<= 100 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 200) .cse0) (and (<= 80 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 160) .cse0) (and (<= ULTIMATE.start_main_~j~0 26) (<= 13 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 14) (<= 7 ULTIMATE.start_main_~i~0) .cse0) (and (<= 83 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 166) .cse0) (and (<= ULTIMATE.start_main_~j~0 170) (<= 85 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 34) (<= 17 ULTIMATE.start_main_~i~0) .cse0) (and (<= 2 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 4) .cse0) (and (<= 68 ULTIMATE.start_main_~i~0) .cse0 (<= ULTIMATE.start_main_~j~0 136)) (and (<= ULTIMATE.start_main_~j~0 148) (<= 74 ULTIMATE.start_main_~i~0) .cse0) (and (<= 20 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 40) .cse0) (and (<= ULTIMATE.start_main_~j~0 70) (<= 35 ULTIMATE.start_main_~i~0) .cse0) (and (<= ULTIMATE.start_main_~j~0 48) (<= 24 ULTIMATE.start_main_~i~0) .cse0) (and (<= 67 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 134) .cse0) (and (<= 18 ULTIMATE.start_main_~i~0) (<= ULTIMATE.start_main_~j~0 36) .cse0) (and (<= ULTIMATE.start_main_~j~0 50) (<= 25 ULTIMATE.start_main_~i~0) .cse0))) [2021-08-27 11:41:15,768 INFO L857 garLoopResultBuilder]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2021-08-27 11:41:15,768 INFO L857 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2021-08-27 11:41:15,768 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-27 11:41:15,768 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2021-08-27 11:41:15,769 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 25) no Hoare annotation was computed. [2021-08-27 11:41:15,769 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-27 11:41:15,769 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-27 11:41:15,769 INFO L860 garLoopResultBuilder]: At program point L28(lines 19 29) the Hoare annotation is: true [2021-08-27 11:41:15,769 INFO L857 garLoopResultBuilder]: For program point L24(line 24) no Hoare annotation was computed. [2021-08-27 11:41:15,769 INFO L857 garLoopResultBuilder]: For program point L24-1(line 24) no Hoare annotation was computed. [2021-08-27 11:41:15,769 INFO L857 garLoopResultBuilder]: For program point L22(line 22) no Hoare annotation was computed. [2021-08-27 11:41:15,770 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-08-27 11:41:15,773 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 11:41:15,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 11:41:15 BoogieIcfgContainer [2021-08-27 11:41:15,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 11:41:15,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 11:41:15,802 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 11:41:15,803 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 11:41:15,803 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 11:30:32" (3/4) ... [2021-08-27 11:41:15,806 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-27 11:41:15,813 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-08-27 11:41:15,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-08-27 11:41:15,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-27 11:41:15,814 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-27 11:41:15,843 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 11:41:15,844 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 11:41:15,845 INFO L168 Benchmark]: Toolchain (without parser) took 643934.74 ms. Allocated memory was 56.6 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 34.9 MB in the beginning and 580.9 MB in the end (delta: -546.1 MB). Peak memory consumption was 2.1 GB. Max. memory is 16.1 GB. [2021-08-27 11:41:15,845 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 38.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:41:15,846 INFO L168 Benchmark]: CACSL2BoogieTranslator took 202.86 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.2 MB in the end (delta: -4.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:15,846 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.41 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 37.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 11:41:15,846 INFO L168 Benchmark]: Boogie Preprocessor took 33.97 ms. Allocated memory is still 56.6 MB. Free memory was 37.9 MB in the beginning and 36.9 MB in the end (delta: 945.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:15,846 INFO L168 Benchmark]: RCFGBuilder took 336.71 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 36.7 MB in the beginning and 57.2 MB in the end (delta: -20.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:15,847 INFO L168 Benchmark]: TraceAbstraction took 643280.82 ms. Allocated memory was 75.5 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 56.9 MB in the beginning and 583.0 MB in the end (delta: -526.2 MB). Peak memory consumption was 2.0 GB. Max. memory is 16.1 GB. [2021-08-27 11:41:15,847 INFO L168 Benchmark]: Witness Printer took 41.30 ms. Allocated memory is still 2.7 GB. Free memory was 583.0 MB in the beginning and 580.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 11:41:15,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 56.6 MB. Free memory was 38.9 MB in the beginning and 38.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 202.86 ms. Allocated memory is still 56.6 MB. Free memory was 34.8 MB in the beginning and 39.2 MB in the end (delta: -4.4 MB). Peak memory consumption was 11.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.41 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 37.9 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.97 ms. Allocated memory is still 56.6 MB. Free memory was 37.9 MB in the beginning and 36.9 MB in the end (delta: 945.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 336.71 ms. Allocated memory was 56.6 MB in the beginning and 75.5 MB in the end (delta: 18.9 MB). Free memory was 36.7 MB in the beginning and 57.2 MB in the end (delta: -20.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 643280.82 ms. Allocated memory was 75.5 MB in the beginning and 2.7 GB in the end (delta: 2.6 GB). Free memory was 56.9 MB in the beginning and 583.0 MB in the end (delta: -526.2 MB). Peak memory consumption was 2.0 GB. Max. memory is 16.1 GB. * Witness Printer took 41.30 ms. Allocated memory is still 2.7 GB. Free memory was 583.0 MB in the beginning and 580.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 25]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 643188.0ms, OverallIterations: 106, TraceHistogramMax: 102, EmptinessCheckTime: 150.5ms, AutomataDifference: 22639.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 2432.9ms, InitialAbstractionConstructionTime: 7.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 848 SDtfs, 5377 SDslu, 16858 SDs, 0 SdLazy, 15298 SolverSat, 418 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8482.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31644 GetRequests, 26075 SyntacticMatches, 0 SemanticMatches, 5569 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40003 ImplicationChecksByTransitivity, 164239.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=511occurred in iteration=105, InterpolantAutomatonStates: 5573, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 457.0ms AutomataMinimizationTime, 106 MinimizatonAttempts, 101 StatesRemovedByMinimization, 101 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 105 NumberOfFragments, 1012 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 136.1ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 303 FormulaSimplificationTreeSizeReductionInter, 2288.2ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1862.2ms SsaConstructionTime, 11991.4ms SatisfiabilityAnalysisTime, 240521.1ms InterpolantComputationTime, 52576 NumberOfCodeBlocks, 52576 NumberOfCodeBlocksAsserted, 2826 NumberOfCheckSat, 52368 ConstructedInterpolants, 0 QuantifiedInterpolants, 156248 SizeOfPredicates, 102 NumberOfNonLiveVariables, 60657 ConjunctsInSsa, 5457 ConjunctsInUnsatCore, 208 InterpolantComputations, 6 PerfectInterpolantSequences, 25461/1737618 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 23]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((((41 <= i && j <= 82) && 0 <= j) || ((45 <= i && j <= 90) && 0 <= j)) || ((j <= 172 && 86 <= i) && 0 <= j)) || ((j <= 198 && 99 <= i) && 0 <= j)) || ((38 <= i && j <= 76) && 0 <= j)) || ((88 <= i && j <= 176) && 0 <= j)) || ((j <= 180 && 90 <= i) && 0 <= j)) || ((j <= 116 && 58 <= i) && 0 <= j)) || ((j <= 168 && 84 <= i) && 0 <= j)) || ((j <= 92 && 0 <= j) && 46 <= i)) || ((6 <= i && j <= 12) && 0 <= j)) || ((66 <= i && j <= 132) && 0 <= j)) || ((j <= 100 && 50 <= i) && 0 <= j)) || ((75 <= i && j <= 150) && 0 <= j)) || ((j <= 138 && 69 <= i) && 0 <= j)) || ((j <= 156 && 78 <= i) && 0 <= j)) || ((j <= 108 && 54 <= i) && 0 <= j)) || ((j <= 20 && 10 <= i) && 0 <= j)) || ((27 <= i && j <= 54) && 0 <= j)) || ((j <= 188 && 94 <= i) && 0 <= j)) || ((49 <= i && j <= 98) && 0 <= j)) || ((j <= 128 && 64 <= i) && 0 <= j)) || ((j <= 152 && 76 <= i) && 0 <= j)) || ((59 <= i && j <= 118) && 0 <= j)) || ((34 <= i && j <= 68) && 0 <= j)) || ((j <= 38 && 19 <= i) && 0 <= j)) || ((87 <= i && j <= 174) && 0 <= j)) || ((j <= 104 && 52 <= i) && 0 <= j)) || ((j <= 58 && 29 <= i) && 0 <= j)) || ((j <= 96 && 48 <= i) && 0 <= j)) || ((56 <= i && j <= 112) && 0 <= j)) || ((0 <= j && j <= 192) && 96 <= i)) || ((j <= 102 && 51 <= i) && 0 <= j)) || ((5 <= i && j <= 10) && 0 <= j)) || ((65 <= i && j <= 130) && 0 <= j)) || ((j <= 88 && 44 <= i) && 0 <= j)) || ((77 <= i && j <= 154) && 0 <= j)) || ((j <= 64 && 0 <= j) && 32 <= i)) || ((j <= 66 && 33 <= i) && 0 <= j)) || ((36 <= i && j <= 72) && 0 <= j)) || ((j <= 44 && 22 <= i) && 0 <= j)) || ((j <= 0 && i == 0) && 0 <= j)) || ((28 <= i && j <= 56) && 0 <= j)) || ((j <= 32 && 0 <= j) && 16 <= i)) || ((j <= 22 && 11 <= i) && 0 <= j)) || ((j <= 178 && 89 <= i) && 0 <= j)) || ((j <= 52 && 26 <= i) && 0 <= j)) || ((8 <= i && j <= 16) && 0 <= j)) || ((j <= 86 && 43 <= i) && 0 <= j)) || ((j <= 80 && 40 <= i) && 0 <= j)) || ((39 <= i && j <= 78) && 0 <= j)) || ((70 <= i && j <= 140) && 0 <= j)) || ((j <= 186 && 93 <= i) && 0 <= j)) || ((4 <= i && j <= 8) && 0 <= j)) || ((14 <= i && j <= 28) && 0 <= j)) || ((81 <= i && j <= 162) && 0 <= j)) || ((1 <= i && j <= 2) && 0 <= j)) || ((60 <= i && j <= 120) && 0 <= j)) || ((j <= 46 && 23 <= i) && 0 <= j)) || ((j <= 122 && 61 <= i) && 0 <= j)) || ((j <= 194 && 97 <= i) && 0 <= j)) || ((98 <= i && 0 <= j) && j <= 196)) || ((57 <= i && j <= 114) && 0 <= j)) || ((j <= 110 && 55 <= i) && 0 <= j)) || ((j <= 144 && 72 <= i) && 0 <= j)) || ((j <= 84 && 42 <= i) && 0 <= j)) || ((3 <= i && j <= 6) && 0 <= j)) || ((30 <= i && j <= 60) && 0 <= j)) || ((j <= 62 && 31 <= i) && 0 <= j)) || ((j <= 24 && 12 <= i) && 0 <= j)) || ((73 <= i && j <= 146) && 0 <= j)) || ((15 <= i && j <= 30) && 0 <= j)) || ((79 <= i && j <= 158) && 0 <= j)) || ((j <= 42 && 21 <= i) && 0 <= j)) || ((82 <= i && j <= 164) && 0 <= j)) || ((j <= 106 && 53 <= i) && 0 <= j)) || ((91 <= i && j <= 182) && 0 <= j)) || ((j <= 184 && 92 <= i) && 0 <= j)) || ((j <= 126 && 63 <= i) && 0 <= j)) || ((j <= 74 && 37 <= i) && 0 <= j)) || ((47 <= i && j <= 94) && 0 <= j)) || ((9 <= i && j <= 18) && 0 <= j)) || ((62 <= i && j <= 124) && 0 <= j)) || ((j <= 142 && 71 <= i) && 0 <= j)) || ((95 <= i && j <= 190) && 0 <= j)) || ((100 <= i && j <= 200) && 0 <= j)) || ((80 <= i && j <= 160) && 0 <= j)) || ((j <= 26 && 13 <= i) && 0 <= j)) || ((j <= 14 && 7 <= i) && 0 <= j)) || ((83 <= i && j <= 166) && 0 <= j)) || ((j <= 170 && 85 <= i) && 0 <= j)) || ((j <= 34 && 17 <= i) && 0 <= j)) || ((2 <= i && j <= 4) && 0 <= j)) || ((68 <= i && 0 <= j) && j <= 136)) || ((j <= 148 && 74 <= i) && 0 <= j)) || ((20 <= i && j <= 40) && 0 <= j)) || ((j <= 70 && 35 <= i) && 0 <= j)) || ((j <= 48 && 24 <= i) && 0 <= j)) || ((67 <= i && j <= 134) && 0 <= j)) || ((18 <= i && j <= 36) && 0 <= j)) || ((j <= 50 && 25 <= i) && 0 <= j) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-08-27 11:41:15,922 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...