./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/Addition02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/Addition02.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-19 15:00:51,069 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-19 15:00:51,070 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-19 15:00:51,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-19 15:00:51,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-19 15:00:51,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-19 15:00:51,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-19 15:00:51,128 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-19 15:00:51,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-19 15:00:51,135 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-19 15:00:51,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-19 15:00:51,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-19 15:00:51,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-19 15:00:51,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-19 15:00:51,141 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-19 15:00:51,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-19 15:00:51,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-19 15:00:51,147 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-19 15:00:51,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-19 15:00:51,151 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-19 15:00:51,154 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-19 15:00:51,155 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-19 15:00:51,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-19 15:00:51,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-19 15:00:51,160 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-19 15:00:51,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-19 15:00:51,163 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-19 15:00:51,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-19 15:00:51,164 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-19 15:00:51,165 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-19 15:00:51,165 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-19 15:00:51,166 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-19 15:00:51,167 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-19 15:00:51,168 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-19 15:00:51,169 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-19 15:00:51,169 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-19 15:00:51,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-19 15:00:51,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-19 15:00:51,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-19 15:00:51,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-19 15:00:51,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-19 15:00:51,172 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-19 15:00:51,196 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-19 15:00:51,197 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-19 15:00:51,198 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-19 15:00:51,198 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-19 15:00:51,199 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-19 15:00:51,199 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-19 15:00:51,199 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-19 15:00:51,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-19 15:00:51,200 INFO L138 SettingsManager]: * Use SBE=true [2021-12-19 15:00:51,200 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-19 15:00:51,201 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-19 15:00:51,201 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-19 15:00:51,201 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-19 15:00:51,201 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-19 15:00:51,201 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-19 15:00:51,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-19 15:00:51,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-19 15:00:51,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-19 15:00:51,202 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-19 15:00:51,203 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-19 15:00:51,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-19 15:00:51,203 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-19 15:00:51,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-19 15:00:51,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-19 15:00:51,204 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-19 15:00:51,204 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-19 15:00:51,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:00:51,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-19 15:00:51,205 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-19 15:00:51,205 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-19 15:00:51,205 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-19 15:00:51,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-19 15:00:51,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-19 15:00:51,206 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-19 15:00:51,206 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12b38fa2e3d5fdbfa2e75fd7db8c6635c3a88ba468adc8c100051dd60d30a551 [2021-12-19 15:00:51,429 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-19 15:00:51,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-19 15:00:51,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-19 15:00:51,456 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-19 15:00:51,456 INFO L275 PluginConnector]: CDTParser initialized [2021-12-19 15:00:51,457 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/Addition02.c [2021-12-19 15:00:51,502 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360ca6f87/63985c62c6894cb4b449a2f251686785/FLAG89a7212ff [2021-12-19 15:00:51,809 INFO L306 CDTParser]: Found 1 translation units. [2021-12-19 15:00:51,809 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c [2021-12-19 15:00:51,813 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360ca6f87/63985c62c6894cb4b449a2f251686785/FLAG89a7212ff [2021-12-19 15:00:52,256 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/360ca6f87/63985c62c6894cb4b449a2f251686785 [2021-12-19 15:00:52,259 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-19 15:00:52,260 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-19 15:00:52,262 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-19 15:00:52,262 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-19 15:00:52,265 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-19 15:00:52,265 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,266 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2386fcb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52, skipping insertion in model container [2021-12-19 15:00:52,268 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-19 15:00:52,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-19 15:00:52,429 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2021-12-19 15:00:52,429 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:00:52,437 INFO L203 MainTranslator]: Completed pre-run [2021-12-19 15:00:52,464 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2021-12-19 15:00:52,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-19 15:00:52,477 INFO L208 MainTranslator]: Completed translation [2021-12-19 15:00:52,478 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52 WrapperNode [2021-12-19 15:00:52,478 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-19 15:00:52,479 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-19 15:00:52,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-19 15:00:52,480 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-19 15:00:52,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,506 INFO L137 Inliner]: procedures = 13, calls = 10, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2021-12-19 15:00:52,506 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-19 15:00:52,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-19 15:00:52,507 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-19 15:00:52,507 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-19 15:00:52,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,534 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,535 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,536 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-19 15:00:52,538 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-19 15:00:52,538 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-19 15:00:52,538 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-19 15:00:52,539 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (1/1) ... [2021-12-19 15:00:52,552 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-19 15:00:52,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:00:52,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-19 15:00:52,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-19 15:00:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-19 15:00:52,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-19 15:00:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-19 15:00:52,618 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-19 15:00:52,618 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2021-12-19 15:00:52,618 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2021-12-19 15:00:52,660 INFO L236 CfgBuilder]: Building ICFG [2021-12-19 15:00:52,661 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-19 15:00:52,752 INFO L277 CfgBuilder]: Performing block encoding [2021-12-19 15:00:52,758 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-19 15:00:52,758 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-19 15:00:52,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:00:52 BoogieIcfgContainer [2021-12-19 15:00:52,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-19 15:00:52,761 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-19 15:00:52,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-19 15:00:52,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-19 15:00:52,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:00:52" (1/3) ... [2021-12-19 15:00:52,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc26650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:00:52, skipping insertion in model container [2021-12-19 15:00:52,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:00:52" (2/3) ... [2021-12-19 15:00:52,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cc26650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:00:52, skipping insertion in model container [2021-12-19 15:00:52,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:00:52" (3/3) ... [2021-12-19 15:00:52,767 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition02.c [2021-12-19 15:00:52,770 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-19 15:00:52,771 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2021-12-19 15:00:52,806 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-19 15:00:52,813 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-19 15:00:52,815 INFO L340 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2021-12-19 15:00:52,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 41 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-12-19 15:00:52,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-12-19 15:00:52,833 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:52,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:52,834 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:52,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:52,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1314326780, now seen corresponding path program 1 times [2021-12-19 15:00:52,846 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:52,846 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624930526] [2021-12-19 15:00:52,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:52,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:52,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:53,018 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:53,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624930526] [2021-12-19 15:00:53,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624930526] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:00:53,019 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:00:53,019 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:00:53,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730864280] [2021-12-19 15:00:53,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:00:53,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:00:53,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:53,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:00:53,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:00:53,065 INFO L87 Difference]: Start difference. First operand has 41 states, 26 states have (on average 1.6153846153846154) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:53,171 INFO L93 Difference]: Finished difference Result 73 states and 82 transitions. [2021-12-19 15:00:53,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:00:53,173 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-12-19 15:00:53,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:53,193 INFO L225 Difference]: With dead ends: 73 [2021-12-19 15:00:53,194 INFO L226 Difference]: Without dead ends: 60 [2021-12-19 15:00:53,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-19 15:00:53,199 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 55 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:53,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 128 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:00:53,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-12-19 15:00:53,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 54. [2021-12-19 15:00:53,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 37 states have (on average 1.5675675675675675) internal successors, (58), 46 states have internal predecessors, (58), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-19 15:00:53,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 68 transitions. [2021-12-19 15:00:53,255 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 68 transitions. Word has length 9 [2021-12-19 15:00:53,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:53,256 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 68 transitions. [2021-12-19 15:00:53,256 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,256 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 68 transitions. [2021-12-19 15:00:53,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-19 15:00:53,257 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:53,257 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:53,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-19 15:00:53,258 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:53,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:53,259 INFO L85 PathProgramCache]: Analyzing trace with hash 2089424586, now seen corresponding path program 1 times [2021-12-19 15:00:53,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:53,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180757013] [2021-12-19 15:00:53,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:53,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:53,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:53,327 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:53,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180757013] [2021-12-19 15:00:53,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180757013] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:00:53,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:00:53,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:00:53,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42126782] [2021-12-19 15:00:53,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:00:53,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:00:53,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:53,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:00:53,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:00:53,332 INFO L87 Difference]: Start difference. First operand 54 states and 68 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:53,396 INFO L93 Difference]: Finished difference Result 98 states and 126 transitions. [2021-12-19 15:00:53,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:00:53,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-12-19 15:00:53,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:53,400 INFO L225 Difference]: With dead ends: 98 [2021-12-19 15:00:53,402 INFO L226 Difference]: Without dead ends: 96 [2021-12-19 15:00:53,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-19 15:00:53,404 INFO L933 BasicCegarLoop]: 29 mSDtfsCounter, 48 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:53,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 108 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:00:53,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-12-19 15:00:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 90. [2021-12-19 15:00:53,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.5522388059701493) internal successors, (104), 76 states have internal predecessors, (104), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-19 15:00:53,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 122 transitions. [2021-12-19 15:00:53,427 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 122 transitions. Word has length 10 [2021-12-19 15:00:53,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:53,427 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 122 transitions. [2021-12-19 15:00:53,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,429 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 122 transitions. [2021-12-19 15:00:53,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-19 15:00:53,430 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:53,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:53,430 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-19 15:00:53,431 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:53,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:53,431 INFO L85 PathProgramCache]: Analyzing trace with hash 347527997, now seen corresponding path program 1 times [2021-12-19 15:00:53,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:53,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841434217] [2021-12-19 15:00:53,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:53,432 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:53,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-19 15:00:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:53,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:53,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841434217] [2021-12-19 15:00:53,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841434217] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:00:53,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:00:53,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:00:53,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064629019] [2021-12-19 15:00:53,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:00:53,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:00:53,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:53,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:00:53,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:00:53,510 INFO L87 Difference]: Start difference. First operand 90 states and 122 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:00:53,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:53,539 INFO L93 Difference]: Finished difference Result 90 states and 122 transitions. [2021-12-19 15:00:53,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:00:53,540 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-12-19 15:00:53,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:53,541 INFO L225 Difference]: With dead ends: 90 [2021-12-19 15:00:53,541 INFO L226 Difference]: Without dead ends: 89 [2021-12-19 15:00:53,541 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:00:53,542 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 6 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:53,542 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 101 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:00:53,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-12-19 15:00:53,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2021-12-19 15:00:53,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 67 states have (on average 1.537313432835821) internal successors, (103), 75 states have internal predecessors, (103), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-19 15:00:53,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2021-12-19 15:00:53,553 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 11 [2021-12-19 15:00:53,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:53,554 INFO L470 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2021-12-19 15:00:53,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:00:53,554 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2021-12-19 15:00:53,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-19 15:00:53,554 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:53,555 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:53,555 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-19 15:00:53,555 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:53,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:53,556 INFO L85 PathProgramCache]: Analyzing trace with hash 347652798, now seen corresponding path program 1 times [2021-12-19 15:00:53,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:53,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96003022] [2021-12-19 15:00:53,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:53,557 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:53,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:53,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:53,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96003022] [2021-12-19 15:00:53,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96003022] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:00:53,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:00:53,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:00:53,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989165396] [2021-12-19 15:00:53,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:00:53,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:00:53,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:53,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:00:53,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:00:53,605 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:53,696 INFO L93 Difference]: Finished difference Result 98 states and 129 transitions. [2021-12-19 15:00:53,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:00:53,697 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-12-19 15:00:53,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:53,699 INFO L225 Difference]: With dead ends: 98 [2021-12-19 15:00:53,701 INFO L226 Difference]: Without dead ends: 96 [2021-12-19 15:00:53,701 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-19 15:00:53,703 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 53 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:53,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [56 Valid, 79 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:00:53,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-12-19 15:00:53,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 88. [2021-12-19 15:00:53,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 67 states have (on average 1.4477611940298507) internal successors, (97), 74 states have internal predecessors, (97), 9 states have call successors, (9), 4 states have call predecessors, (9), 4 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2021-12-19 15:00:53,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 115 transitions. [2021-12-19 15:00:53,718 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 115 transitions. Word has length 11 [2021-12-19 15:00:53,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:53,719 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 115 transitions. [2021-12-19 15:00:53,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,732 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 115 transitions. [2021-12-19 15:00:53,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-19 15:00:53,733 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:53,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:53,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-19 15:00:53,733 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:53,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:53,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2111533933, now seen corresponding path program 1 times [2021-12-19 15:00:53,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:53,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824801186] [2021-12-19 15:00:53,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:53,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:53,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-19 15:00:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:53,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:53,781 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824801186] [2021-12-19 15:00:53,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824801186] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:00:53,781 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:00:53,781 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-19 15:00:53,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656711860] [2021-12-19 15:00:53,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:00:53,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-19 15:00:53,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:53,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-19 15:00:53,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-19 15:00:53,783 INFO L87 Difference]: Start difference. First operand 88 states and 115 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:00:53,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:53,800 INFO L93 Difference]: Finished difference Result 88 states and 115 transitions. [2021-12-19 15:00:53,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-19 15:00:53,801 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2021-12-19 15:00:53,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:53,802 INFO L225 Difference]: With dead ends: 88 [2021-12-19 15:00:53,802 INFO L226 Difference]: Without dead ends: 68 [2021-12-19 15:00:53,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:00:53,804 INFO L933 BasicCegarLoop]: 36 mSDtfsCounter, 3 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:53,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 98 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:00:53,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2021-12-19 15:00:53,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 54. [2021-12-19 15:00:53,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 42 states have (on average 1.380952380952381) internal successors, (58), 49 states have internal predecessors, (58), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 63 transitions. [2021-12-19 15:00:53,815 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 63 transitions. Word has length 12 [2021-12-19 15:00:53,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:53,815 INFO L470 AbstractCegarLoop]: Abstraction has 54 states and 63 transitions. [2021-12-19 15:00:53,815 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-19 15:00:53,815 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 63 transitions. [2021-12-19 15:00:53,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-12-19 15:00:53,816 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:53,816 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:53,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-19 15:00:53,817 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:53,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:53,817 INFO L85 PathProgramCache]: Analyzing trace with hash -2107665076, now seen corresponding path program 1 times [2021-12-19 15:00:53,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:53,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111884765] [2021-12-19 15:00:53,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:53,818 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:53,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:53,840 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:53,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111884765] [2021-12-19 15:00:53,841 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111884765] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:00:53,841 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:00:53,841 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-19 15:00:53,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477700024] [2021-12-19 15:00:53,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:00:53,842 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-19 15:00:53,842 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:53,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-19 15:00:53,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:00:53,843 INFO L87 Difference]: Start difference. First operand 54 states and 63 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:53,854 INFO L93 Difference]: Finished difference Result 54 states and 63 transitions. [2021-12-19 15:00:53,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-19 15:00:53,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-12-19 15:00:53,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:53,855 INFO L225 Difference]: With dead ends: 54 [2021-12-19 15:00:53,856 INFO L226 Difference]: Without dead ends: 53 [2021-12-19 15:00:53,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-19 15:00:53,857 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 4 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:53,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 34 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:00:53,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2021-12-19 15:00:53,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2021-12-19 15:00:53,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 48 states have internal predecessors, (56), 5 states have call successors, (5), 4 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 61 transitions. [2021-12-19 15:00:53,863 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 61 transitions. Word has length 12 [2021-12-19 15:00:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:53,863 INFO L470 AbstractCegarLoop]: Abstraction has 53 states and 61 transitions. [2021-12-19 15:00:53,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,863 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 61 transitions. [2021-12-19 15:00:53,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-19 15:00:53,864 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:53,864 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:53,864 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-19 15:00:53,865 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:53,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:53,868 INFO L85 PathProgramCache]: Analyzing trace with hash -586735519, now seen corresponding path program 1 times [2021-12-19 15:00:53,868 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:53,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175649891] [2021-12-19 15:00:53,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:53,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:53,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:53,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175649891] [2021-12-19 15:00:53,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175649891] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:00:53,899 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:00:53,899 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:00:53,899 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438262739] [2021-12-19 15:00:53,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:00:53,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:00:53,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:53,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:00:53,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:00:53,901 INFO L87 Difference]: Start difference. First operand 53 states and 61 transitions. Second operand has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:53,936 INFO L93 Difference]: Finished difference Result 77 states and 86 transitions. [2021-12-19 15:00:53,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:00:53,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-19 15:00:53,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:53,938 INFO L225 Difference]: With dead ends: 77 [2021-12-19 15:00:53,938 INFO L226 Difference]: Without dead ends: 44 [2021-12-19 15:00:53,939 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-19 15:00:53,939 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 20 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:53,940 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 63 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:00:53,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-12-19 15:00:53,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2021-12-19 15:00:53,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 30 states have (on average 1.3333333333333333) internal successors, (40), 36 states have internal predecessors, (40), 4 states have call successors, (4), 3 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 44 transitions. [2021-12-19 15:00:53,944 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 44 transitions. Word has length 13 [2021-12-19 15:00:53,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:53,945 INFO L470 AbstractCegarLoop]: Abstraction has 40 states and 44 transitions. [2021-12-19 15:00:53,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:53,945 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 44 transitions. [2021-12-19 15:00:53,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-12-19 15:00:53,946 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:53,946 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:53,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-19 15:00:53,947 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:53,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:53,947 INFO L85 PathProgramCache]: Analyzing trace with hash -367240775, now seen corresponding path program 1 times [2021-12-19 15:00:53,947 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:53,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [981685115] [2021-12-19 15:00:53,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:53,948 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:53,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:53,994 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:53,994 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:53,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [981685115] [2021-12-19 15:00:53,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [981685115] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:00:53,995 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872410669] [2021-12-19 15:00:53,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:53,996 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:00:53,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:00:54,002 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:00:54,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-19 15:00:54,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:54,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-19 15:00:54,049 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:00:54,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:54,149 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:00:54,254 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:54,255 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872410669] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:00:54,255 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:00:54,255 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-19 15:00:54,255 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770818662] [2021-12-19 15:00:54,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:00:54,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-19 15:00:54,256 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:54,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-19 15:00:54,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-19 15:00:54,257 INFO L87 Difference]: Start difference. First operand 40 states and 44 transitions. Second operand has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:54,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:54,407 INFO L93 Difference]: Finished difference Result 151 states and 174 transitions. [2021-12-19 15:00:54,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-19 15:00:54,408 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-12-19 15:00:54,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:54,416 INFO L225 Difference]: With dead ends: 151 [2021-12-19 15:00:54,416 INFO L226 Difference]: Without dead ends: 149 [2021-12-19 15:00:54,417 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-12-19 15:00:54,419 INFO L933 BasicCegarLoop]: 25 mSDtfsCounter, 159 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:54,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 173 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:00:54,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2021-12-19 15:00:54,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 110. [2021-12-19 15:00:54,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 92 states have (on average 1.2934782608695652) internal successors, (119), 99 states have internal predecessors, (119), 12 states have call successors, (12), 10 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:54,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 131 transitions. [2021-12-19 15:00:54,434 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 131 transitions. Word has length 17 [2021-12-19 15:00:54,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:54,434 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 131 transitions. [2021-12-19 15:00:54,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 8 states have internal predecessors, (28), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:54,435 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 131 transitions. [2021-12-19 15:00:54,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-12-19 15:00:54,435 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:54,435 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:54,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-19 15:00:54,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:00:54,659 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:54,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:54,659 INFO L85 PathProgramCache]: Analyzing trace with hash -2146710882, now seen corresponding path program 1 times [2021-12-19 15:00:54,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:54,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771039779] [2021-12-19 15:00:54,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:54,660 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:54,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:54,705 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:54,705 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771039779] [2021-12-19 15:00:54,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771039779] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-19 15:00:54,706 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-19 15:00:54,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-19 15:00:54,706 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539561293] [2021-12-19 15:00:54,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-19 15:00:54,706 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-19 15:00:54,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:54,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-19 15:00:54,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-12-19 15:00:54,707 INFO L87 Difference]: Start difference. First operand 110 states and 131 transitions. Second operand has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:54,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:54,742 INFO L93 Difference]: Finished difference Result 111 states and 131 transitions. [2021-12-19 15:00:54,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-19 15:00:54,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2021-12-19 15:00:54,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:54,743 INFO L225 Difference]: With dead ends: 111 [2021-12-19 15:00:54,743 INFO L226 Difference]: Without dead ends: 42 [2021-12-19 15:00:54,744 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-12-19 15:00:54,744 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 13 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:54,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 35 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-19 15:00:54,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2021-12-19 15:00:54,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2021-12-19 15:00:54,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 36 states have (on average 1.0277777777777777) internal successors, (37), 36 states have internal predecessors, (37), 5 states have call successors, (5), 5 states have call predecessors, (5), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:54,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2021-12-19 15:00:54,749 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 21 [2021-12-19 15:00:54,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:54,749 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2021-12-19 15:00:54,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.75) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:54,750 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2021-12-19 15:00:54,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-12-19 15:00:54,750 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:54,751 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:54,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-19 15:00:54,751 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:54,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:54,752 INFO L85 PathProgramCache]: Analyzing trace with hash 1797520880, now seen corresponding path program 2 times [2021-12-19 15:00:54,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:54,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643354681] [2021-12-19 15:00:54,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:54,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:54,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:54,865 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:54,866 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:54,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643354681] [2021-12-19 15:00:54,866 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643354681] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:00:54,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [629488373] [2021-12-19 15:00:54,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:00:54,866 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:00:54,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:00:54,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:00:54,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-19 15:00:54,913 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:00:54,913 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:00:54,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-19 15:00:54,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:00:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:55,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:00:55,240 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:55,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [629488373] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:00:55,241 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:00:55,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-19 15:00:55,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736521026] [2021-12-19 15:00:55,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:00:55,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-19 15:00:55,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:55,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-19 15:00:55,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2021-12-19 15:00:55,246 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 14 states have internal predecessors, (70), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:55,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:55,437 INFO L93 Difference]: Finished difference Result 95 states and 100 transitions. [2021-12-19 15:00:55,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-12-19 15:00:55,438 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 14 states have internal predecessors, (70), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-12-19 15:00:55,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:55,440 INFO L225 Difference]: With dead ends: 95 [2021-12-19 15:00:55,440 INFO L226 Difference]: Without dead ends: 94 [2021-12-19 15:00:55,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=311, Invalid=811, Unknown=0, NotChecked=0, Total=1122 [2021-12-19 15:00:55,442 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 190 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:55,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 134 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:00:55,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-12-19 15:00:55,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2021-12-19 15:00:55,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 78 states have (on average 1.0128205128205128) internal successors, (79), 78 states have internal predecessors, (79), 11 states have call successors, (11), 11 states have call predecessors, (11), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:55,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 90 transitions. [2021-12-19 15:00:55,462 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 90 transitions. Word has length 41 [2021-12-19 15:00:55,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:55,462 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 90 transitions. [2021-12-19 15:00:55,462 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 14 states have internal predecessors, (70), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:55,463 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 90 transitions. [2021-12-19 15:00:55,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2021-12-19 15:00:55,470 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:55,470 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:55,495 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-19 15:00:55,695 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,SelfDestructingSolverStorable9 [2021-12-19 15:00:55,696 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:55,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:55,697 INFO L85 PathProgramCache]: Analyzing trace with hash 589293406, now seen corresponding path program 3 times [2021-12-19 15:00:55,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:55,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509239766] [2021-12-19 15:00:55,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:55,697 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:55,977 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:55,977 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:55,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509239766] [2021-12-19 15:00:55,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509239766] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:00:55,977 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372969963] [2021-12-19 15:00:55,978 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-19 15:00:55,978 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:00:55,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:00:55,979 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:00:56,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-19 15:00:56,041 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-19 15:00:56,048 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:00:56,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-19 15:00:56,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:00:56,251 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:56,251 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:00:56,863 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:56,863 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372969963] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:00:56,863 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:00:56,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-19 15:00:56,863 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141506325] [2021-12-19 15:00:56,863 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:00:56,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-19 15:00:56,864 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:00:56,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-19 15:00:56,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2021-12-19 15:00:56,866 INFO L87 Difference]: Start difference. First operand 90 states and 90 transitions. Second operand has 48 states, 47 states have (on average 3.276595744680851) internal successors, (154), 26 states have internal predecessors, (154), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:57,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:00:57,351 INFO L93 Difference]: Finished difference Result 191 states and 202 transitions. [2021-12-19 15:00:57,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-12-19 15:00:57,352 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.276595744680851) internal successors, (154), 26 states have internal predecessors, (154), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2021-12-19 15:00:57,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:00:57,353 INFO L225 Difference]: With dead ends: 191 [2021-12-19 15:00:57,353 INFO L226 Difference]: Without dead ends: 190 [2021-12-19 15:00:57,355 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 924 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1337, Invalid=3493, Unknown=0, NotChecked=0, Total=4830 [2021-12-19 15:00:57,355 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 749 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-19 15:00:57,356 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [749 Valid, 225 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-19 15:00:57,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2021-12-19 15:00:57,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 186. [2021-12-19 15:00:57,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 162 states have (on average 1.0061728395061729) internal successors, (163), 162 states have internal predecessors, (163), 23 states have call successors, (23), 23 states have call predecessors, (23), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:57,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 186 transitions. [2021-12-19 15:00:57,364 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 186 transitions. Word has length 89 [2021-12-19 15:00:57,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:00:57,365 INFO L470 AbstractCegarLoop]: Abstraction has 186 states and 186 transitions. [2021-12-19 15:00:57,365 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.276595744680851) internal successors, (154), 26 states have internal predecessors, (154), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:00:57,366 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 186 transitions. [2021-12-19 15:00:57,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2021-12-19 15:00:57,377 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:00:57,377 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2021-12-19 15:00:57,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-19 15:00:57,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:00:57,599 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:00:57,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:00:57,600 INFO L85 PathProgramCache]: Analyzing trace with hash -697418182, now seen corresponding path program 4 times [2021-12-19 15:00:57,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:00:57,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484536870] [2021-12-19 15:00:57,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:00:57,600 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:00:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:00:58,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:58,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:00:58,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484536870] [2021-12-19 15:00:58,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1484536870] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:00:58,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [992144327] [2021-12-19 15:00:58,523 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-19 15:00:58,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:00:58,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:00:58,524 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:00:58,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-19 15:00:58,597 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-19 15:00:58,597 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:00:58,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-19 15:00:58,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:00:58,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:00:58,999 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1936 backedges. 0 proven. 1936 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:00,894 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [992144327] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:00,894 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:00,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-19 15:01:00,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18056352] [2021-12-19 15:01:00,895 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:00,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-19 15:01:00,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:00,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-19 15:01:00,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2021-12-19 15:01:00,901 INFO L87 Difference]: Start difference. First operand 186 states and 186 transitions. Second operand has 96 states, 95 states have (on average 3.389473684210526) internal successors, (322), 50 states have internal predecessors, (322), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:01:02,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:02,495 INFO L93 Difference]: Finished difference Result 383 states and 406 transitions. [2021-12-19 15:01:02,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-12-19 15:01:02,496 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 3.389473684210526) internal successors, (322), 50 states have internal predecessors, (322), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 185 [2021-12-19 15:01:02,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:02,498 INFO L225 Difference]: With dead ends: 383 [2021-12-19 15:01:02,498 INFO L226 Difference]: Without dead ends: 382 [2021-12-19 15:01:02,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 462 GetRequests, 322 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4140 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=5549, Invalid=14473, Unknown=0, NotChecked=0, Total=20022 [2021-12-19 15:01:02,503 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 1350 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1350 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-19 15:01:02,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1350 Valid, 425 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-19 15:01:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-12-19 15:01:02,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 378. [2021-12-19 15:01:02,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 330 states have (on average 1.003030303030303) internal successors, (331), 330 states have internal predecessors, (331), 47 states have call successors, (47), 47 states have call predecessors, (47), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:01:02,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 378 transitions. [2021-12-19 15:01:02,515 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 378 transitions. Word has length 185 [2021-12-19 15:01:02,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:02,516 INFO L470 AbstractCegarLoop]: Abstraction has 378 states and 378 transitions. [2021-12-19 15:01:02,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 3.389473684210526) internal successors, (322), 50 states have internal predecessors, (322), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:01:02,516 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 378 transitions. [2021-12-19 15:01:02,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-12-19 15:01:02,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:02,521 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:02,542 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-19 15:01:02,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:02,731 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:01:02,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:02,732 INFO L85 PathProgramCache]: Analyzing trace with hash 2139421682, now seen corresponding path program 5 times [2021-12-19 15:01:02,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:02,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689963850] [2021-12-19 15:01:02,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:02,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:05,310 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:05,311 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:05,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [689963850] [2021-12-19 15:01:05,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [689963850] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:05,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [105434056] [2021-12-19 15:01:05,311 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-19 15:01:05,311 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:05,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:05,312 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:01:05,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-19 15:01:05,490 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-19 15:01:05,491 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:05,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-19 15:01:05,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:06,235 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:06,235 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:12,242 INFO L134 CoverageAnalysis]: Checked inductivity of 8464 backedges. 0 proven. 8464 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:12,242 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [105434056] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:12,242 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:12,242 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-19 15:01:12,242 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798718820] [2021-12-19 15:01:12,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:12,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-19 15:01:12,245 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:12,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-19 15:01:12,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2021-12-19 15:01:12,252 INFO L87 Difference]: Start difference. First operand 378 states and 378 transitions. Second operand has 192 states, 191 states have (on average 3.445026178010471) internal successors, (658), 98 states have internal predecessors, (658), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:01:18,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:01:18,190 INFO L93 Difference]: Finished difference Result 767 states and 814 transitions. [2021-12-19 15:01:18,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 192 states. [2021-12-19 15:01:18,190 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 191 states have (on average 3.445026178010471) internal successors, (658), 98 states have internal predecessors, (658), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 377 [2021-12-19 15:01:18,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:01:18,193 INFO L225 Difference]: With dead ends: 767 [2021-12-19 15:01:18,193 INFO L226 Difference]: Without dead ends: 766 [2021-12-19 15:01:18,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 942 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 11.4s TimeCoverageRelationStatistics Valid=22613, Invalid=58897, Unknown=0, NotChecked=0, Total=81510 [2021-12-19 15:01:18,200 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 3976 mSDsluCounter, 800 mSDsCounter, 0 mSdLazyCounter, 676 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3976 SdHoareTripleChecker+Valid, 811 SdHoareTripleChecker+Invalid, 734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-19 15:01:18,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3976 Valid, 811 Invalid, 734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 676 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-19 15:01:18,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2021-12-19 15:01:18,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 762. [2021-12-19 15:01:18,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 762 states, 666 states have (on average 1.0015015015015014) internal successors, (667), 666 states have internal predecessors, (667), 95 states have call successors, (95), 95 states have call predecessors, (95), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:01:18,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 762 states to 762 states and 762 transitions. [2021-12-19 15:01:18,222 INFO L78 Accepts]: Start accepts. Automaton has 762 states and 762 transitions. Word has length 377 [2021-12-19 15:01:18,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:01:18,223 INFO L470 AbstractCegarLoop]: Abstraction has 762 states and 762 transitions. [2021-12-19 15:01:18,224 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 191 states have (on average 3.445026178010471) internal successors, (658), 98 states have internal predecessors, (658), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:01:18,224 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states and 762 transitions. [2021-12-19 15:01:18,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 762 [2021-12-19 15:01:18,239 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:01:18,240 INFO L514 BasicCegarLoop]: trace histogram [95, 95, 95, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1, 1] [2021-12-19 15:01:18,263 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-12-19 15:01:18,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-19 15:01:18,456 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:01:18,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:01:18,456 INFO L85 PathProgramCache]: Analyzing trace with hash 77248354, now seen corresponding path program 6 times [2021-12-19 15:01:18,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:01:18,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119868652] [2021-12-19 15:01:18,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:01:18,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:01:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:01:27,630 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:27,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:01:27,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119868652] [2021-12-19 15:01:27,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119868652] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:01:27,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [447284366] [2021-12-19 15:01:27,631 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-19 15:01:27,632 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:01:27,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:01:27,632 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:01:27,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-19 15:01:28,009 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2021-12-19 15:01:28,010 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:01:28,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1552 conjuncts, 192 conjunts are in the unsatisfiable core [2021-12-19 15:01:28,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:01:29,330 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:29,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:01:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 35344 backedges. 0 proven. 35344 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:01:51,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [447284366] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:01:51,818 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:01:51,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 192, 192] total 383 [2021-12-19 15:01:51,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686161880] [2021-12-19 15:01:51,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:01:51,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 384 states [2021-12-19 15:01:51,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:01:51,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 384 interpolants. [2021-12-19 15:01:51,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36676, Invalid=110396, Unknown=0, NotChecked=0, Total=147072 [2021-12-19 15:01:51,859 INFO L87 Difference]: Start difference. First operand 762 states and 762 transitions. Second operand has 384 states, 383 states have (on average 3.4725848563968666) internal successors, (1330), 194 states have internal predecessors, (1330), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:02:27,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:02:27,826 INFO L93 Difference]: Finished difference Result 1535 states and 1630 transitions. [2021-12-19 15:02:27,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 384 states. [2021-12-19 15:02:27,827 INFO L78 Accepts]: Start accepts. Automaton has has 384 states, 383 states have (on average 3.4725848563968666) internal successors, (1330), 194 states have internal predecessors, (1330), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 761 [2021-12-19 15:02:27,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:02:27,833 INFO L225 Difference]: With dead ends: 1535 [2021-12-19 15:02:27,833 INFO L226 Difference]: Without dead ends: 1534 [2021-12-19 15:02:27,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1902 GetRequests, 1330 SyntacticMatches, 0 SemanticMatches, 572 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71820 ImplicationChecksByTransitivity, 44.8s TimeCoverageRelationStatistics Valid=91301, Invalid=237601, Unknown=0, NotChecked=0, Total=328902 [2021-12-19 15:02:27,853 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 7588 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 1345 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7588 SdHoareTripleChecker+Valid, 1592 SdHoareTripleChecker+Invalid, 1452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 1345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2021-12-19 15:02:27,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7588 Valid, 1592 Invalid, 1452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 1345 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2021-12-19 15:02:27,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1534 states. [2021-12-19 15:02:27,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1534 to 1530. [2021-12-19 15:02:27,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1530 states, 1338 states have (on average 1.000747384155456) internal successors, (1339), 1338 states have internal predecessors, (1339), 191 states have call successors, (191), 191 states have call predecessors, (191), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:02:27,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1530 states to 1530 states and 1530 transitions. [2021-12-19 15:02:27,897 INFO L78 Accepts]: Start accepts. Automaton has 1530 states and 1530 transitions. Word has length 761 [2021-12-19 15:02:27,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:02:27,899 INFO L470 AbstractCegarLoop]: Abstraction has 1530 states and 1530 transitions. [2021-12-19 15:02:27,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 384 states, 383 states have (on average 3.4725848563968666) internal successors, (1330), 194 states have internal predecessors, (1330), 190 states have call successors, (190), 190 states have call predecessors, (190), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:02:27,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1530 states and 1530 transitions. [2021-12-19 15:02:27,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1530 [2021-12-19 15:02:27,947 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:02:27,947 INFO L514 BasicCegarLoop]: trace histogram [191, 191, 191, 190, 190, 190, 190, 190, 1, 1, 1, 1, 1, 1] [2021-12-19 15:02:27,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-19 15:02:28,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:02:28,165 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:02:28,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:02:28,166 INFO L85 PathProgramCache]: Analyzing trace with hash 577187394, now seen corresponding path program 7 times [2021-12-19 15:02:28,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:02:28,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052427033] [2021-12-19 15:02:28,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:02:28,166 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:02:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:03:03,323 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:03:03,324 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:03:03,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052427033] [2021-12-19 15:03:03,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052427033] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:03:03,324 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533654350] [2021-12-19 15:03:03,324 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-19 15:03:03,324 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:03:03,325 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:03:03,325 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:03:03,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-19 15:03:03,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:03:03,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 3088 conjuncts, 384 conjunts are in the unsatisfiable core [2021-12-19 15:03:03,801 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:03:06,280 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:03:06,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-19 15:04:35,921 INFO L134 CoverageAnalysis]: Checked inductivity of 144400 backedges. 0 proven. 144400 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:04:35,922 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533654350] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-19 15:04:35,922 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-19 15:04:35,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [384, 384, 384] total 767 [2021-12-19 15:04:35,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908877243] [2021-12-19 15:04:35,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-19 15:04:35,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 768 states [2021-12-19 15:04:35,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-19 15:04:35,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 768 interpolants. [2021-12-19 15:04:35,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147076, Invalid=441980, Unknown=0, NotChecked=0, Total=589056 [2021-12-19 15:04:35,981 INFO L87 Difference]: Start difference. First operand 1530 states and 1530 transitions. Second operand has 768 states, 767 states have (on average 3.486310299869622) internal successors, (2674), 386 states have internal predecessors, (2674), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:10:24,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-19 15:10:24,918 INFO L93 Difference]: Finished difference Result 3071 states and 3262 transitions. [2021-12-19 15:10:24,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 768 states. [2021-12-19 15:10:24,919 INFO L78 Accepts]: Start accepts. Automaton has has 768 states, 767 states have (on average 3.486310299869622) internal successors, (2674), 386 states have internal predecessors, (2674), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1529 [2021-12-19 15:10:24,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-19 15:10:24,933 INFO L225 Difference]: With dead ends: 3071 [2021-12-19 15:10:24,933 INFO L226 Difference]: Without dead ends: 3070 [2021-12-19 15:10:25,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3822 GetRequests, 2674 SyntacticMatches, 0 SemanticMatches, 1148 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291084 ImplicationChecksByTransitivity, 180.9s TimeCoverageRelationStatistics Valid=366917, Invalid=954433, Unknown=0, NotChecked=0, Total=1321350 [2021-12-19 15:10:25,031 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 15398 mSDsluCounter, 3127 mSDsCounter, 0 mSdLazyCounter, 2691 mSolverCounterSat, 200 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15398 SdHoareTripleChecker+Valid, 3138 SdHoareTripleChecker+Invalid, 2891 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 200 IncrementalHoareTripleChecker+Valid, 2691 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2021-12-19 15:10:25,032 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15398 Valid, 3138 Invalid, 2891 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [200 Valid, 2691 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2021-12-19 15:10:25,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3070 states. [2021-12-19 15:10:25,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3070 to 3066. [2021-12-19 15:10:25,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3066 states, 2682 states have (on average 1.000372856077554) internal successors, (2683), 2682 states have internal predecessors, (2683), 383 states have call successors, (383), 383 states have call predecessors, (383), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:10:25,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3066 states to 3066 states and 3066 transitions. [2021-12-19 15:10:25,248 INFO L78 Accepts]: Start accepts. Automaton has 3066 states and 3066 transitions. Word has length 1529 [2021-12-19 15:10:25,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-19 15:10:25,250 INFO L470 AbstractCegarLoop]: Abstraction has 3066 states and 3066 transitions. [2021-12-19 15:10:25,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 768 states, 767 states have (on average 3.486310299869622) internal successors, (2674), 386 states have internal predecessors, (2674), 382 states have call successors, (382), 382 states have call predecessors, (382), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-19 15:10:25,252 INFO L276 IsEmpty]: Start isEmpty. Operand 3066 states and 3066 transitions. [2021-12-19 15:10:25,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3066 [2021-12-19 15:10:25,300 INFO L506 BasicCegarLoop]: Found error trace [2021-12-19 15:10:25,300 INFO L514 BasicCegarLoop]: trace histogram [383, 383, 383, 382, 382, 382, 382, 382, 1, 1, 1, 1, 1, 1] [2021-12-19 15:10:25,319 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-19 15:10:25,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:10:25,501 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2021-12-19 15:10:25,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-19 15:10:25,502 INFO L85 PathProgramCache]: Analyzing trace with hash -326886398, now seen corresponding path program 8 times [2021-12-19 15:10:25,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-19 15:10:25,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107855932] [2021-12-19 15:10:25,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-19 15:10:25,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-19 15:10:28,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-19 15:12:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 583696 backedges. 0 proven. 583696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:12:44,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-19 15:12:44,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107855932] [2021-12-19 15:12:44,446 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107855932] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-19 15:12:44,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1811860906] [2021-12-19 15:12:44,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-19 15:12:44,446 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-19 15:12:44,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-19 15:12:44,452 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-19 15:12:44,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-19 15:12:45,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-19 15:12:45,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-19 15:12:45,914 INFO L263 TraceCheckSpWp]: Trace formula consists of 6160 conjuncts, 768 conjunts are in the unsatisfiable core [2021-12-19 15:12:45,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-19 15:12:50,865 INFO L134 CoverageAnalysis]: Checked inductivity of 583696 backedges. 0 proven. 583696 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-19 15:12:50,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... Killed by 15