./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash edd6561cca2d352ad9794df9d30edf5094107348 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@7caec565 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:48:35,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:48:35,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:48:35,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:48:35,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:48:35,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:48:35,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:48:35,727 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:48:35,728 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:48:35,729 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:48:35,730 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:48:35,744 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:48:35,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:48:35,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:48:35,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:48:35,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:48:35,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:48:35,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:48:35,757 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:48:35,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:48:35,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:48:35,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:48:35,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:48:35,766 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:48:35,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:48:35,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:48:35,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:48:35,773 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:48:35,773 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:48:35,774 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:48:35,774 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:48:35,775 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:48:35,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:48:35,776 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:48:35,777 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:48:35,777 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:48:35,778 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:48:35,778 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:48:35,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:48:35,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:48:35,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:48:35,780 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-30 22:48:35,805 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:48:35,806 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:48:35,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:48:35,807 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:48:35,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:48:35,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:48:35,808 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:48:35,808 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:48:35,809 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 22:48:35,809 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:48:35,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:48:35,809 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 22:48:35,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:48:35,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:48:35,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:48:35,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:48:35,810 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:48:35,810 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 22:48:35,810 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:48:35,811 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:48:35,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:48:35,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:48:35,811 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:48:35,811 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:48:35,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:48:35,812 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:48:35,812 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:48:35,812 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:48:35,812 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:48:35,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:48:35,813 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:48:35,813 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:48:35,813 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> edd6561cca2d352ad9794df9d30edf5094107348 [2021-08-30 22:48:35,998 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:48:36,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:48:36,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:48:36,012 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:48:36,013 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:48:36,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2021-08-30 22:48:36,055 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04930346d/26b63f2e73c94a54b8e43d2617a31071/FLAGa01a0c0b7 [2021-08-30 22:48:36,413 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:48:36,413 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i [2021-08-30 22:48:36,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04930346d/26b63f2e73c94a54b8e43d2617a31071/FLAGa01a0c0b7 [2021-08-30 22:48:36,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04930346d/26b63f2e73c94a54b8e43d2617a31071 [2021-08-30 22:48:36,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:48:36,859 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:48:36,861 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:48:36,861 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:48:36,864 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:48:36,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:48:36" (1/1) ... [2021-08-30 22:48:36,865 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37484a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:36, skipping insertion in model container [2021-08-30 22:48:36,865 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:48:36" (1/1) ... [2021-08-30 22:48:36,869 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:48:36,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:48:36,980 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2021-08-30 22:48:36,997 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:48:37,004 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:48:37,012 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark10_conjunctive.i[873,886] [2021-08-30 22:48:37,018 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:48:37,028 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:48:37,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37 WrapperNode [2021-08-30 22:48:37,029 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:48:37,030 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:48:37,030 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:48:37,031 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:48:37,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,045 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:48:37,070 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:48:37,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:48:37,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:48:37,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,081 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,092 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,093 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,096 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:48:37,097 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:48:37,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:48:37,098 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:48:37,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (1/1) ... [2021-08-30 22:48:37,103 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:48:37,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:48:37,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 22:48:37,151 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 22:48:37,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-30 22:48:37,161 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 22:48:37,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:48:37,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:48:37,284 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:48:37,285 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-08-30 22:48:37,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:48:37 BoogieIcfgContainer [2021-08-30 22:48:37,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:48:37,287 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:48:37,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:48:37,289 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:48:37,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:48:36" (1/3) ... [2021-08-30 22:48:37,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bad5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:48:37, skipping insertion in model container [2021-08-30 22:48:37,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:48:37" (2/3) ... [2021-08-30 22:48:37,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8bad5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:48:37, skipping insertion in model container [2021-08-30 22:48:37,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:48:37" (3/3) ... [2021-08-30 22:48:37,292 INFO L111 eAbstractionObserver]: Analyzing ICFG benchmark10_conjunctive.i [2021-08-30 22:48:37,296 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:48:37,296 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-30 22:48:37,341 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:48:37,348 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 22:48:37,349 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-30 22:48:37,360 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-30 22:48:37,363 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:48:37,364 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-30 22:48:37,365 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:48:37,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:48:37,369 INFO L82 PathProgramCache]: Analyzing trace with hash 28695973, now seen corresponding path program 1 times [2021-08-30 22:48:37,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:48:37,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036258214] [2021-08-30 22:48:37,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:48:37,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:48:37,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:48:37,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:37,550 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:48:37,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036258214] [2021-08-30 22:48:37,551 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036258214] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:48:37,551 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:48:37,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:48:37,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808682465] [2021-08-30 22:48:37,555 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:48:37,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:48:37,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:48:37,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:48:37,588 INFO L87 Difference]: Start difference. First operand has 19 states, 14 states have (on average 1.6428571428571428) internal successors, (23), 18 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:48:37,676 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2021-08-30 22:48:37,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:48:37,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-30 22:48:37,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:48:37,684 INFO L225 Difference]: With dead ends: 36 [2021-08-30 22:48:37,684 INFO L226 Difference]: Without dead ends: 17 [2021-08-30 22:48:37,687 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 47.58ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:48:37,691 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 17 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.55ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 66.55ms IncrementalHoareTripleChecker+Time [2021-08-30 22:48:37,692 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [17 Valid, 0 Invalid, 64 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [2 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 66.55ms Time] [2021-08-30 22:48:37,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-08-30 22:48:37,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-08-30 22:48:37,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-08-30 22:48:37,715 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 5 [2021-08-30 22:48:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:48:37,716 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-08-30 22:48:37,716 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,716 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-08-30 22:48:37,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-08-30 22:48:37,716 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:48:37,719 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-08-30 22:48:37,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:48:37,719 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:48:37,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:48:37,720 INFO L82 PathProgramCache]: Analyzing trace with hash 889575213, now seen corresponding path program 1 times [2021-08-30 22:48:37,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:48:37,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801885015] [2021-08-30 22:48:37,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:48:37,721 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:48:37,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:48:37,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:37,761 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:48:37,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801885015] [2021-08-30 22:48:37,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801885015] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:48:37,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:48:37,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:48:37,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011675861] [2021-08-30 22:48:37,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:48:37,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:48:37,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:48:37,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:48:37,763 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:48:37,780 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2021-08-30 22:48:37,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:48:37,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-08-30 22:48:37,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:48:37,781 INFO L225 Difference]: With dead ends: 17 [2021-08-30 22:48:37,781 INFO L226 Difference]: Without dead ends: 16 [2021-08-30 22:48:37,781 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.79ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:48:37,782 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.15ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.69ms IncrementalHoareTripleChecker+Time [2021-08-30 22:48:37,782 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 25 Unknown, 0 Unchecked, 0.15ms Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 14.69ms Time] [2021-08-30 22:48:37,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-08-30 22:48:37,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-08-30 22:48:37,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-08-30 22:48:37,785 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 6 [2021-08-30 22:48:37,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:48:37,785 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-08-30 22:48:37,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,786 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-08-30 22:48:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-30 22:48:37,786 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:48:37,786 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:48:37,786 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:48:37,786 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:48:37,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:48:37,787 INFO L82 PathProgramCache]: Analyzing trace with hash 1807027879, now seen corresponding path program 1 times [2021-08-30 22:48:37,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:48:37,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505604156] [2021-08-30 22:48:37,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:48:37,788 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:48:37,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:48:37,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:37,806 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:48:37,806 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505604156] [2021-08-30 22:48:37,806 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505604156] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:48:37,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:48:37,807 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:48:37,807 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340161895] [2021-08-30 22:48:37,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:48:37,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:48:37,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:48:37,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:48:37,809 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:48:37,835 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-08-30 22:48:37,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:48:37,836 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-08-30 22:48:37,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:48:37,836 INFO L225 Difference]: With dead ends: 16 [2021-08-30 22:48:37,840 INFO L226 Difference]: Without dead ends: 15 [2021-08-30 22:48:37,841 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.59ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:48:37,841 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.77ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.12ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.63ms IncrementalHoareTripleChecker+Time [2021-08-30 22:48:37,842 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 17 Unknown, 0 Unchecked, 0.12ms Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 24.63ms Time] [2021-08-30 22:48:37,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-08-30 22:48:37,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-08-30 22:48:37,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2021-08-30 22:48:37,852 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 7 [2021-08-30 22:48:37,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:48:37,853 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2021-08-30 22:48:37,855 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,856 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2021-08-30 22:48:37,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-30 22:48:37,857 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:48:37,857 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:48:37,857 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 22:48:37,857 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:48:37,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:48:37,858 INFO L82 PathProgramCache]: Analyzing trace with hash 183289455, now seen corresponding path program 1 times [2021-08-30 22:48:37,858 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:48:37,858 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332961886] [2021-08-30 22:48:37,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:48:37,858 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:48:37,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:48:37,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:37,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:48:37,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332961886] [2021-08-30 22:48:37,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332961886] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:48:37,897 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:48:37,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:48:37,897 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716981802] [2021-08-30 22:48:37,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:48:37,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:48:37,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:48:37,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:48:37,898 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:48:37,914 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2021-08-30 22:48:37,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:48:37,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-08-30 22:48:37,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:48:37,915 INFO L225 Difference]: With dead ends: 15 [2021-08-30 22:48:37,915 INFO L226 Difference]: Without dead ends: 14 [2021-08-30 22:48:37,916 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.24ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:48:37,917 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.10ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.45ms IncrementalHoareTripleChecker+Time [2021-08-30 22:48:37,917 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 0 Invalid, 14 Unknown, 0 Unchecked, 0.10ms Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 14.45ms Time] [2021-08-30 22:48:37,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-08-30 22:48:37,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-08-30 22:48:37,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2021-08-30 22:48:37,919 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 8 [2021-08-30 22:48:37,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:48:37,920 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2021-08-30 22:48:37,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:37,920 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2021-08-30 22:48:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-30 22:48:37,920 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:48:37,921 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:48:37,921 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-30 22:48:37,921 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:48:37,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:48:37,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1472778862, now seen corresponding path program 1 times [2021-08-30 22:48:37,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:48:37,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731351028] [2021-08-30 22:48:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:48:37,922 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:48:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:48:37,955 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:37,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:48:37,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731351028] [2021-08-30 22:48:37,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731351028] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:48:37,956 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533505304] [2021-08-30 22:48:37,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:48:37,956 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:48:37,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:48:37,958 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:48:37,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-30 22:48:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:48:37,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-30 22:48:37,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:48:38,060 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:38,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:48:38,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:38,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533505304] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:48:38,120 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:48:38,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2021-08-30 22:48:38,121 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004116794] [2021-08-30 22:48:38,121 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-30 22:48:38,121 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:48:38,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-30 22:48:38,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-08-30 22:48:38,122 INFO L87 Difference]: Start difference. First operand 14 states and 14 transitions. Second operand has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:48:38,252 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2021-08-30 22:48:38,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 22:48:38,252 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-08-30 22:48:38,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:48:38,253 INFO L225 Difference]: With dead ends: 29 [2021-08-30 22:48:38,253 INFO L226 Difference]: Without dead ends: 28 [2021-08-30 22:48:38,254 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 83.83ms TimeCoverageRelationStatistics Valid=88, Invalid=152, Unknown=0, NotChecked=0, Total=240 [2021-08-30 22:48:38,254 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 26 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 52.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.89ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 75.98ms IncrementalHoareTripleChecker+Time [2021-08-30 22:48:38,255 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 0 Invalid, 90 Unknown, 0 Unchecked, 0.89ms Time], IncrementalHoareTripleChecker [15 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 75.98ms Time] [2021-08-30 22:48:38,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-08-30 22:48:38,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 25. [2021-08-30 22:48:38,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 23 states have (on average 1.1304347826086956) internal successors, (26), 24 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:38,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-08-30 22:48:38,258 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 11 [2021-08-30 22:48:38,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:48:38,258 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-08-30 22:48:38,259 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.9) internal successors, (29), 11 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:38,259 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-08-30 22:48:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-30 22:48:38,259 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:48:38,259 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:48:38,280 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-30 22:48:38,468 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:48:38,469 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:48:38,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:48:38,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1588495484, now seen corresponding path program 1 times [2021-08-30 22:48:38,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:48:38,470 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84412669] [2021-08-30 22:48:38,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:48:38,470 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:48:38,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:48:38,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:38,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:48:38,508 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84412669] [2021-08-30 22:48:38,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84412669] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:48:38,509 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:48:38,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-30 22:48:38,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793584424] [2021-08-30 22:48:38,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 22:48:38,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:48:38,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 22:48:38,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:48:38,510 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:38,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:48:38,547 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2021-08-30 22:48:38,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 22:48:38,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-30 22:48:38,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:48:38,548 INFO L225 Difference]: With dead ends: 25 [2021-08-30 22:48:38,548 INFO L226 Difference]: Without dead ends: 24 [2021-08-30 22:48:38,548 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.84ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:48:38,549 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.26ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.71ms IncrementalHoareTripleChecker+Time [2021-08-30 22:48:38,549 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 32 Unknown, 0 Unchecked, 0.26ms Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 25.71ms Time] [2021-08-30 22:48:38,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-08-30 22:48:38,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-08-30 22:48:38,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:38,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2021-08-30 22:48:38,552 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2021-08-30 22:48:38,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:48:38,552 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2021-08-30 22:48:38,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:38,552 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2021-08-30 22:48:38,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-08-30 22:48:38,553 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:48:38,553 INFO L513 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1] [2021-08-30 22:48:38,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-30 22:48:38,553 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:48:38,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:48:38,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1136548800, now seen corresponding path program 2 times [2021-08-30 22:48:38,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:48:38,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252918264] [2021-08-30 22:48:38,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:48:38,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:48:38,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:48:38,618 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:38,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:48:38,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252918264] [2021-08-30 22:48:38,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252918264] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:48:38,619 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377948195] [2021-08-30 22:48:38,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-30 22:48:38,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:48:38,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:48:38,620 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:48:38,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-30 22:48:38,646 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-30 22:48:38,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 22:48:38,653 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-30 22:48:38,654 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:48:38,799 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:38,799 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:48:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:38,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377948195] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:48:38,993 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:48:38,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 21 [2021-08-30 22:48:38,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417351861] [2021-08-30 22:48:38,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-30 22:48:38,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:48:38,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-30 22:48:38,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2021-08-30 22:48:38,995 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:39,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:48:39,268 INFO L93 Difference]: Finished difference Result 50 states and 53 transitions. [2021-08-30 22:48:39,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-30 22:48:39,268 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-08-30 22:48:39,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:48:39,269 INFO L225 Difference]: With dead ends: 50 [2021-08-30 22:48:39,269 INFO L226 Difference]: Without dead ends: 49 [2021-08-30 22:48:39,270 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 302.94ms TimeCoverageRelationStatistics Valid=413, Invalid=919, Unknown=0, NotChecked=0, Total=1332 [2021-08-30 22:48:39,270 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 67 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 75.57ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.65ms SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 92.61ms IncrementalHoareTripleChecker+Time [2021-08-30 22:48:39,271 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [67 Valid, 0 Invalid, 208 Unknown, 0 Unchecked, 1.65ms Time], IncrementalHoareTripleChecker [39 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 92.61ms Time] [2021-08-30 22:48:39,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2021-08-30 22:48:39,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 48. [2021-08-30 22:48:39,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.0212765957446808) internal successors, (48), 47 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:39,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 48 transitions. [2021-08-30 22:48:39,278 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 48 transitions. Word has length 23 [2021-08-30 22:48:39,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:48:39,279 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 48 transitions. [2021-08-30 22:48:39,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 21 states have (on average 2.9523809523809526) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:48:39,279 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 48 transitions. [2021-08-30 22:48:39,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-08-30 22:48:39,281 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:48:39,281 INFO L513 BasicCegarLoop]: trace histogram [8, 7, 7, 7, 7, 7, 1, 1, 1, 1] [2021-08-30 22:48:39,301 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-30 22:48:39,496 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-08-30 22:48:39,497 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:48:39,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:48:39,497 INFO L82 PathProgramCache]: Analyzing trace with hash 977907044, now seen corresponding path program 3 times [2021-08-30 22:48:39,497 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:48:39,498 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681643137] [2021-08-30 22:48:39,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:48:39,498 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:48:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:48:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:39,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:48:39,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681643137] [2021-08-30 22:48:39,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681643137] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:48:39,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581448074] [2021-08-30 22:48:39,656 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-30 22:48:39,656 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:48:39,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:48:39,660 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:48:39,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-30 22:48:39,694 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-08-30 22:48:39,696 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 22:48:39,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-30 22:48:39,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:48:41,030 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:41,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:48:41,482 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 0 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:48:41,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581448074] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:48:41,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:48:41,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 45 [2021-08-30 22:48:41,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35270209] [2021-08-30 22:48:41,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-08-30 22:48:41,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:48:41,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-08-30 22:48:41,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=1599, Unknown=1, NotChecked=0, Total=2070 [2021-08-30 22:48:41,485 INFO L87 Difference]: Start difference. First operand 48 states and 48 transitions. Second operand has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 46 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:49:02,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:49:02,072 INFO L93 Difference]: Finished difference Result 97 states and 104 transitions. [2021-08-30 22:49:02,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-30 22:49:02,072 INFO L78 Accepts]: Start accepts. Automaton has has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 46 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-08-30 22:49:02,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:49:02,074 INFO L225 Difference]: With dead ends: 97 [2021-08-30 22:49:02,075 INFO L226 Difference]: Without dead ends: 96 [2021-08-30 22:49:02,077 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2975 ImplicationChecksByTransitivity, 21684.66ms TimeCoverageRelationStatistics Valid=2386, Invalid=5982, Unknown=4, NotChecked=0, Total=8372 [2021-08-30 22:49:02,078 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 165 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 224.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.88ms SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 263.40ms IncrementalHoareTripleChecker+Time [2021-08-30 22:49:02,078 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 0 Invalid, 642 Unknown, 0 Unchecked, 2.88ms Time], IncrementalHoareTripleChecker [113 Valid, 512 Invalid, 0 Unknown, 17 Unchecked, 263.40ms Time] [2021-08-30 22:49:02,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2021-08-30 22:49:02,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2021-08-30 22:49:02,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 1.0105263157894737) internal successors, (96), 95 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:49:02,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 96 transitions. [2021-08-30 22:49:02,084 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 96 transitions. Word has length 47 [2021-08-30 22:49:02,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:49:02,084 INFO L470 AbstractCegarLoop]: Abstraction has 96 states and 96 transitions. [2021-08-30 22:49:02,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 45 states have (on average 3.0444444444444443) internal successors, (137), 46 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:49:02,084 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 96 transitions. [2021-08-30 22:49:02,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-08-30 22:49:02,086 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:49:02,087 INFO L513 BasicCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 1, 1, 1, 1] [2021-08-30 22:49:02,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-30 22:49:02,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:49:02,303 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:49:02,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:49:02,303 INFO L82 PathProgramCache]: Analyzing trace with hash -913355604, now seen corresponding path program 4 times [2021-08-30 22:49:02,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:49:02,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [112774976] [2021-08-30 22:49:02,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:49:02,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:49:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:49:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:49:02,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:49:02,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [112774976] [2021-08-30 22:49:02,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [112774976] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:49:02,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770538642] [2021-08-30 22:49:02,727 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-30 22:49:02,727 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:49:02,728 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:49:02,728 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:49:02,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-30 22:49:02,769 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-30 22:49:02,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-30 22:49:02,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 33 conjunts are in the unsatisfiable core [2021-08-30 22:49:02,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:49:03,878 INFO L134 CoverageAnalysis]: Checked inductivity of 660 backedges. 0 proven. 660 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:49:03,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:51:05,561 WARN L228 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-08-30 22:51:05,562 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-08-30 22:51:05,562 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-08-30 22:51:05,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32] total 32 [2021-08-30 22:51:05,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115487936] [2021-08-30 22:51:05,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-08-30 22:51:05,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:51:05,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-08-30 22:51:05,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=664, Invalid=3991, Unknown=37, NotChecked=0, Total=4692 [2021-08-30 22:51:05,564 INFO L87 Difference]: Start difference. First operand 96 states and 96 transitions. Second operand has 33 states, 32 states have (on average 2.96875) internal successors, (95), 33 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:51:05,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-30 22:51:05,565 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 98 SyntacticMatches, 3 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1283 ImplicationChecksByTransitivity, 85491.25ms TimeCoverageRelationStatistics Valid=664, Invalid=3991, Unknown=37, NotChecked=0, Total=4692 [2021-08-30 22:51:05,566 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.01ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-08-30 22:51:05,566 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1 Unknown, 0 Unchecked, 0.01ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-08-30 22:51:05,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-08-30 22:51:05,582 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-30 22:51:05,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:51:05,767 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@7caec565 at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:81) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.assertCodeBlock(IncrementalHoareTripleChecker.java:359) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.prepareAssertionStackAndAddTransition(IncrementalHoareTripleChecker.java:206) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.IncrementalHoareTripleChecker.checkInternal(IncrementalHoareTripleChecker.java:131) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker$ProtectedHtc.checkInternal(ChainingHoareTripleChecker.java:436) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.ChainingHoareTripleChecker.checkInternal(ChainingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.hoaretriple.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:95) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:357) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:107) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:73) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:863) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:779) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:53) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:392) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-08-30 22:51:05,769 INFO L158 Benchmark]: Toolchain (without parser) took 148910.76ms. Allocated memory was 48.2MB in the beginning and 86.0MB in the end (delta: 37.7MB). Free memory was 24.6MB in the beginning and 58.4MB in the end (delta: -33.8MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2021-08-30 22:51:05,770 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory was 31.0MB in the beginning and 31.0MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:51:05,770 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.51ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 24.5MB in the beginning and 36.7MB in the end (delta: -12.2MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. [2021-08-30 22:51:05,770 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.23ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 43.0MB in the end (delta: -6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-30 22:51:05,770 INFO L158 Benchmark]: Boogie Preprocessor took 26.49ms. Allocated memory is still 58.7MB. Free memory was 43.0MB in the beginning and 42.0MB in the end (delta: 964.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:51:05,770 INFO L158 Benchmark]: RCFGBuilder took 189.17ms. Allocated memory is still 58.7MB. Free memory was 41.9MB in the beginning and 33.9MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 22:51:05,770 INFO L158 Benchmark]: TraceAbstraction took 148481.67ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 33.4MB in the beginning and 58.4MB in the end (delta: -25.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2021-08-30 22:51:05,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory was 31.0MB in the beginning and 31.0MB in the end (delta: 31.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.51ms. Allocated memory was 48.2MB in the beginning and 58.7MB in the end (delta: 10.5MB). Free memory was 24.5MB in the beginning and 36.7MB in the end (delta: -12.2MB). Peak memory consumption was 3.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.23ms. Allocated memory is still 58.7MB. Free memory was 36.7MB in the beginning and 43.0MB in the end (delta: -6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.49ms. Allocated memory is still 58.7MB. Free memory was 43.0MB in the beginning and 42.0MB in the end (delta: 964.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 189.17ms. Allocated memory is still 58.7MB. Free memory was 41.9MB in the beginning and 33.9MB in the end (delta: 8.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 148481.67ms. Allocated memory was 58.7MB in the beginning and 86.0MB in the end (delta: 27.3MB). Free memory was 33.4MB in the beginning and 58.4MB in the end (delta: -25.0MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@7caec565 de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalStateException: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker@7caec565: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.lock(ManagedScript.java:81) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...