./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c --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/bitvector/soft_float_1-2a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3e65a9c88991657ab2059827ecd5dfb9aad85be ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:46:23,287 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:46:23,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:46:23,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:46:23,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:46:23,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:46:23,323 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:46:23,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:46:23,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:46:23,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:46:23,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:46:23,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:46:23,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:46:23,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:46:23,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:46:23,330 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:46:23,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:46:23,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:46:23,332 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:46:23,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:46:23,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:46:23,337 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:46:23,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:46:23,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:46:23,342 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:46:23,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:46:23,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:46:23,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:46:23,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:46:23,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:46:23,348 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:46:23,349 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:46:23,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:46:23,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:46:23,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:46:23,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:46:23,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:46:23,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:46:23,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:46:23,354 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:46:23,355 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:46:23,356 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-08-30 22:46:23,381 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:46:23,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:46:23,382 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:46:23,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:46:23,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:46:23,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:46:23,384 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:46:23,384 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:46:23,384 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-30 22:46:23,385 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:46:23,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:46:23,385 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-30 22:46:23,385 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:46:23,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:46:23,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:46:23,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:46:23,386 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:46:23,386 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-30 22:46:23,386 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:46:23,386 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:46:23,387 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:46:23,387 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:46:23,387 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:46:23,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:46:23,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:46:23,387 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:46:23,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:46:23,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:46:23,388 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:46:23,388 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:46:23,388 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:46:23,388 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:46:23,388 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3e65a9c88991657ab2059827ecd5dfb9aad85be [2021-08-30 22:46:23,616 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:46:23,634 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:46:23,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:46:23,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:46:23,637 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:46:23,642 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-08-30 22:46:23,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beb17787a/f9f75f2456a84ca596c2ced721e65e9c/FLAG4f1f6dd43 [2021-08-30 22:46:24,054 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:46:24,055 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_1-2a.c.cil.c [2021-08-30 22:46:24,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beb17787a/f9f75f2456a84ca596c2ced721e65e9c/FLAG4f1f6dd43 [2021-08-30 22:46:24,461 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beb17787a/f9f75f2456a84ca596c2ced721e65e9c [2021-08-30 22:46:24,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:46:24,464 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:46:24,465 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:46:24,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:46:24,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:46:24,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,469 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2928c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24, skipping insertion in model container [2021-08-30 22:46:24,469 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,474 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:46:24,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:46:24,594 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/bitvector/soft_float_1-2a.c.cil.c[450,463] [2021-08-30 22:46:24,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:46:24,630 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:46:24,658 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/bitvector/soft_float_1-2a.c.cil.c[450,463] [2021-08-30 22:46:24,718 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:46:24,727 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:46:24,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24 WrapperNode [2021-08-30 22:46:24,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:46:24,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:46:24,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:46:24,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:46:24,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:46:24,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:46:24,781 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:46:24,781 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:46:24,790 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,799 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:46:24,807 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:46:24,807 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:46:24,807 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:46:24,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (1/1) ... [2021-08-30 22:46:24,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:46:24,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:46:24,842 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 22:46:24,867 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 22:46:24,883 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-30 22:46:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-30 22:46:24,884 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:46:24,884 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:46:25,120 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:46:25,120 INFO L299 CfgBuilder]: Removed 28 assume(true) statements. [2021-08-30 22:46:25,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:25 BoogieIcfgContainer [2021-08-30 22:46:25,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:46:25,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:46:25,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:46:25,125 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:46:25,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:46:24" (1/3) ... [2021-08-30 22:46:25,125 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d1e6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:46:25, skipping insertion in model container [2021-08-30 22:46:25,125 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:46:24" (2/3) ... [2021-08-30 22:46:25,126 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10d1e6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:46:25, skipping insertion in model container [2021-08-30 22:46:25,126 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:25" (3/3) ... [2021-08-30 22:46:25,127 INFO L111 eAbstractionObserver]: Analyzing ICFG soft_float_1-2a.c.cil.c [2021-08-30 22:46:25,130 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:46:25,130 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2021-08-30 22:46:25,168 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:46:25,177 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 22:46:25,177 INFO L340 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2021-08-30 22:46:25,196 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 115 states have (on average 1.7565217391304349) internal successors, (202), 143 states have internal predecessors, (202), 0 states have call successors, (0), 0 states 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 22:46:25,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-30 22:46:25,207 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:25,208 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:25,208 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:25,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:25,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1807791520, now seen corresponding path program 1 times [2021-08-30 22:46:25,219 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:25,219 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525056744] [2021-08-30 22:46:25,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:25,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:25,339 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 22:46:25,340 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:25,340 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525056744] [2021-08-30 22:46:25,340 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525056744] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:25,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:25,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:46:25,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436199655] [2021-08-30 22:46:25,345 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-30 22:46:25,345 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:25,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-30 22:46:25,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-30 22:46:25,362 INFO L87 Difference]: Start difference. First operand has 144 states, 115 states have (on average 1.7565217391304349) internal successors, (202), 143 states have internal predecessors, (202), 0 states have call successors, (0), 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 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 22:46:25,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:25,605 INFO L93 Difference]: Finished difference Result 268 states and 376 transitions. [2021-08-30 22:46:25,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-30 22:46:25,607 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 22:46:25,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:25,613 INFO L225 Difference]: With dead ends: 268 [2021-08-30 22:46:25,613 INFO L226 Difference]: Without dead ends: 107 [2021-08-30 22:46:25,615 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-30 22:46:25,617 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 164.52ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.94ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 212.58ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:25,618 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 184 Unknown, 0 Unchecked, 0.94ms Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 212.58ms Time] [2021-08-30 22:46:25,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-08-30 22:46:25,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-08-30 22:46:25,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 81 states have (on average 1.6049382716049383) internal successors, (130), 106 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:25,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 130 transitions. [2021-08-30 22:46:25,652 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 130 transitions. Word has length 7 [2021-08-30 22:46:25,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:25,652 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 130 transitions. [2021-08-30 22:46:25,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 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 22:46:25,653 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 130 transitions. [2021-08-30 22:46:25,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-08-30 22:46:25,653 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:25,653 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:25,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:46:25,654 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:25,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:25,655 INFO L82 PathProgramCache]: Analyzing trace with hash 1806850254, now seen corresponding path program 1 times [2021-08-30 22:46:25,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:25,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809336799] [2021-08-30 22:46:25,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:25,656 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:25,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:25,705 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 22:46:25,706 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:25,706 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809336799] [2021-08-30 22:46:25,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [809336799] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:25,707 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:25,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:46:25,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531886148] [2021-08-30 22:46:25,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:46:25,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:25,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:46:25,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:46:25,711 INFO L87 Difference]: Start difference. First operand 107 states and 130 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 22:46:25,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:25,905 INFO L93 Difference]: Finished difference Result 211 states and 254 transitions. [2021-08-30 22:46:25,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:46:25,906 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 22:46:25,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:25,910 INFO L225 Difference]: With dead ends: 211 [2021-08-30 22:46:25,910 INFO L226 Difference]: Without dead ends: 121 [2021-08-30 22:46:25,913 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.90ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:46:25,914 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 12 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 119.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.71ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 159.40ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:25,915 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 0 Invalid, 262 Unknown, 0 Unchecked, 3.71ms Time], IncrementalHoareTripleChecker [7 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 159.40ms Time] [2021-08-30 22:46:25,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2021-08-30 22:46:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 119. [2021-08-30 22:46:25,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 93 states have (on average 1.5376344086021505) internal successors, (143), 118 states have internal predecessors, (143), 0 states have call successors, (0), 0 states 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 22:46:25,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 143 transitions. [2021-08-30 22:46:25,935 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 143 transitions. Word has length 7 [2021-08-30 22:46:25,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:25,936 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 143 transitions. [2021-08-30 22:46:25,936 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 22:46:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 143 transitions. [2021-08-30 22:46:25,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-08-30 22:46:25,937 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:25,937 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:25,938 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:46:25,938 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:25,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:25,939 INFO L82 PathProgramCache]: Analyzing trace with hash -866677448, now seen corresponding path program 1 times [2021-08-30 22:46:25,939 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:25,939 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406738966] [2021-08-30 22:46:25,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:25,940 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:25,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:25,979 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 22:46:25,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:25,980 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406738966] [2021-08-30 22:46:25,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1406738966] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:25,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:25,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:46:25,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690415534] [2021-08-30 22:46:25,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:46:25,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:25,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:46:25,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:46:25,987 INFO L87 Difference]: Start difference. First operand 119 states and 143 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:26,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:26,181 INFO L93 Difference]: Finished difference Result 172 states and 205 transitions. [2021-08-30 22:46:26,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:46:26,181 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-08-30 22:46:26,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:26,182 INFO L225 Difference]: With dead ends: 172 [2021-08-30 22:46:26,182 INFO L226 Difference]: Without dead ends: 165 [2021-08-30 22:46:26,183 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.75ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:46:26,183 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 221 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 136.86ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.59ms SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 173.61ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:26,184 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 0 Invalid, 277 Unknown, 0 Unchecked, 2.59ms Time], IncrementalHoareTripleChecker [23 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 173.61ms Time] [2021-08-30 22:46:26,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2021-08-30 22:46:26,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 120. [2021-08-30 22:46:26,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 99 states have (on average 1.4646464646464648) internal successors, (145), 119 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:26,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 145 transitions. [2021-08-30 22:46:26,200 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 145 transitions. Word has length 10 [2021-08-30 22:46:26,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:26,200 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 145 transitions. [2021-08-30 22:46:26,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:26,200 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 145 transitions. [2021-08-30 22:46:26,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-08-30 22:46:26,201 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:26,201 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:26,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 22:46:26,201 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:26,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:26,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1097196978, now seen corresponding path program 1 times [2021-08-30 22:46:26,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:26,202 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266921484] [2021-08-30 22:46:26,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:26,202 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:26,252 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 22:46:26,255 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:26,255 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266921484] [2021-08-30 22:46:26,256 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266921484] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:26,256 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:26,256 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:46:26,256 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340777510] [2021-08-30 22:46:26,256 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:46:26,257 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:26,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:46:26,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:46:26,257 INFO L87 Difference]: Start difference. First operand 120 states and 145 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states 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 22:46:26,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:26,458 INFO L93 Difference]: Finished difference Result 164 states and 194 transitions. [2021-08-30 22:46:26,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:46:26,459 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 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 22:46:26,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:26,460 INFO L225 Difference]: With dead ends: 164 [2021-08-30 22:46:26,460 INFO L226 Difference]: Without dead ends: 159 [2021-08-30 22:46:26,461 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.68ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:46:26,467 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 64 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 147.93ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.62ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 186.83ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:26,468 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 0 Invalid, 276 Unknown, 0 Unchecked, 1.62ms Time], IncrementalHoareTripleChecker [12 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 186.83ms Time] [2021-08-30 22:46:26,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-08-30 22:46:26,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 112. [2021-08-30 22:46:26,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 95 states have (on average 1.4421052631578948) internal successors, (137), 111 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 22:46:26,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 137 transitions. [2021-08-30 22:46:26,487 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 137 transitions. Word has length 11 [2021-08-30 22:46:26,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:26,487 INFO L470 AbstractCegarLoop]: Abstraction has 112 states and 137 transitions. [2021-08-30 22:46:26,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states 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 22:46:26,488 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 137 transitions. [2021-08-30 22:46:26,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-30 22:46:26,489 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:26,489 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:26,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-30 22:46:26,490 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:26,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:26,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1234080256, now seen corresponding path program 1 times [2021-08-30 22:46:26,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:26,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9125874] [2021-08-30 22:46:26,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:26,492 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:26,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:26,518 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 22:46:26,518 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:26,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9125874] [2021-08-30 22:46:26,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9125874] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:26,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:26,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:46:26,519 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330417287] [2021-08-30 22:46:26,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:46:26,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:26,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:46:26,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:46:26,519 INFO L87 Difference]: Start difference. First operand 112 states and 137 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:26,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:26,685 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2021-08-30 22:46:26,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:46:26,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-30 22:46:26,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:26,686 INFO L225 Difference]: With dead ends: 160 [2021-08-30 22:46:26,687 INFO L226 Difference]: Without dead ends: 158 [2021-08-30 22:46:26,687 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.86ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:46:26,687 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 200 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 249 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 117.17ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.07ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 249 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 148.80ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:26,688 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [200 Valid, 0 Invalid, 264 Unknown, 0 Unchecked, 2.07ms Time], IncrementalHoareTripleChecker [15 Valid, 249 Invalid, 0 Unknown, 0 Unchecked, 148.80ms Time] [2021-08-30 22:46:26,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-08-30 22:46:26,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 114. [2021-08-30 22:46:26,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 98 states have (on average 1.4183673469387754) internal successors, (139), 113 states have internal predecessors, (139), 0 states have call successors, (0), 0 states 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 22:46:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2021-08-30 22:46:26,700 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 12 [2021-08-30 22:46:26,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:26,700 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2021-08-30 22:46:26,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:26,700 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2021-08-30 22:46:26,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-08-30 22:46:26,702 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:26,702 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:26,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-30 22:46:26,703 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:26,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:26,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1595344206, now seen corresponding path program 1 times [2021-08-30 22:46:26,704 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:26,704 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001673150] [2021-08-30 22:46:26,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:26,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:26,744 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 22:46:26,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:26,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001673150] [2021-08-30 22:46:26,745 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001673150] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:26,745 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:26,745 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:46:26,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418817815] [2021-08-30 22:46:26,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:46:26,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:26,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:46:26,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:46:26,752 INFO L87 Difference]: Start difference. First operand 114 states and 139 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:26,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:26,930 INFO L93 Difference]: Finished difference Result 257 states and 307 transitions. [2021-08-30 22:46:26,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:46:26,930 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-08-30 22:46:26,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:26,931 INFO L225 Difference]: With dead ends: 257 [2021-08-30 22:46:26,931 INFO L226 Difference]: Without dead ends: 171 [2021-08-30 22:46:26,931 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.13ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:46:26,932 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 82 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 126.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.40ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.28ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:26,933 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 0 Invalid, 344 Unknown, 0 Unchecked, 1.40ms Time], IncrementalHoareTripleChecker [9 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 164.28ms Time] [2021-08-30 22:46:26,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2021-08-30 22:46:26,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 119. [2021-08-30 22:46:26,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 103 states have (on average 1.4077669902912622) internal successors, (145), 118 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:26,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 145 transitions. [2021-08-30 22:46:26,941 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 145 transitions. Word has length 12 [2021-08-30 22:46:26,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:26,941 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 145 transitions. [2021-08-30 22:46:26,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:26,941 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 145 transitions. [2021-08-30 22:46:26,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-30 22:46:26,942 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:26,942 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:26,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-30 22:46:26,943 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:26,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:26,943 INFO L82 PathProgramCache]: Analyzing trace with hash -2056836231, now seen corresponding path program 1 times [2021-08-30 22:46:26,943 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:26,943 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806009041] [2021-08-30 22:46:26,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:26,944 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:26,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:26,970 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 22:46:26,970 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:26,970 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806009041] [2021-08-30 22:46:26,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806009041] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:26,970 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:26,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:46:26,971 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866075372] [2021-08-30 22:46:26,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:46:26,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:26,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:46:26,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:46:26,972 INFO L87 Difference]: Start difference. First operand 119 states and 145 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:27,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:27,125 INFO L93 Difference]: Finished difference Result 169 states and 203 transitions. [2021-08-30 22:46:27,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:46:27,125 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-30 22:46:27,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:27,126 INFO L225 Difference]: With dead ends: 169 [2021-08-30 22:46:27,127 INFO L226 Difference]: Without dead ends: 167 [2021-08-30 22:46:27,127 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.85ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:46:27,127 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 248 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 101.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 221 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.87ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 139.37ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:27,128 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [248 Valid, 0 Invalid, 221 Unknown, 0 Unchecked, 0.87ms Time], IncrementalHoareTripleChecker [15 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 139.37ms Time] [2021-08-30 22:46:27,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-08-30 22:46:27,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 122. [2021-08-30 22:46:27,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 107 states have (on average 1.3925233644859814) internal successors, (149), 121 states have internal predecessors, (149), 0 states have call successors, (0), 0 states 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 22:46:27,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 149 transitions. [2021-08-30 22:46:27,132 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 149 transitions. Word has length 13 [2021-08-30 22:46:27,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:27,132 INFO L470 AbstractCegarLoop]: Abstraction has 122 states and 149 transitions. [2021-08-30 22:46:27,132 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:27,133 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 149 transitions. [2021-08-30 22:46:27,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-08-30 22:46:27,134 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:27,134 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:27,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-30 22:46:27,134 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:27,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:27,135 INFO L82 PathProgramCache]: Analyzing trace with hash 465285246, now seen corresponding path program 1 times [2021-08-30 22:46:27,136 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:27,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [761617256] [2021-08-30 22:46:27,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:27,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:27,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:27,193 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 22:46:27,193 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:27,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [761617256] [2021-08-30 22:46:27,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [761617256] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:46:27,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876130544] [2021-08-30 22:46:27,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:27,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:46:27,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:46:27,195 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 22:46:27,199 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 22:46:27,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:27,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 3 conjunts are in the unsatisfiable core [2021-08-30 22:46:27,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:46:27,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:46:27,307 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-08-30 22:46:27,307 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876130544] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:27,308 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-08-30 22:46:27,308 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2021-08-30 22:46:27,308 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560692957] [2021-08-30 22:46:27,309 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:46:27,309 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:27,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:46:27,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:46:27,310 INFO L87 Difference]: Start difference. First operand 122 states and 149 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:27,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:27,548 INFO L93 Difference]: Finished difference Result 209 states and 249 transitions. [2021-08-30 22:46:27,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:46:27,548 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-08-30 22:46:27,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:27,549 INFO L225 Difference]: With dead ends: 209 [2021-08-30 22:46:27,549 INFO L226 Difference]: Without dead ends: 206 [2021-08-30 22:46:27,549 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.56ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:46:27,550 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 131 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 411 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 174.82ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.03ms SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 220.77ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:27,550 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 0 Invalid, 423 Unknown, 0 Unchecked, 1.03ms Time], IncrementalHoareTripleChecker [12 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 220.77ms Time] [2021-08-30 22:46:27,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2021-08-30 22:46:27,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 109. [2021-08-30 22:46:27,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 97 states have (on average 1.3814432989690721) internal successors, (134), 108 states have internal predecessors, (134), 0 states have call successors, (0), 0 states 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 22:46:27,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 134 transitions. [2021-08-30 22:46:27,553 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 134 transitions. Word has length 13 [2021-08-30 22:46:27,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:27,553 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 134 transitions. [2021-08-30 22:46:27,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:27,554 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 134 transitions. [2021-08-30 22:46:27,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-30 22:46:27,554 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:27,554 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:27,576 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 22:46:27,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:46:27,765 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:27,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:27,765 INFO L82 PathProgramCache]: Analyzing trace with hash -47207071, now seen corresponding path program 1 times [2021-08-30 22:46:27,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:27,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976335196] [2021-08-30 22:46:27,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:27,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:27,796 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 22:46:27,796 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:27,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976335196] [2021-08-30 22:46:27,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976335196] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:27,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:27,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:46:27,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507056132] [2021-08-30 22:46:27,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:46:27,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:27,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:46:27,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:46:27,803 INFO L87 Difference]: Start difference. First operand 109 states and 134 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 22:46:27,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:27,982 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2021-08-30 22:46:27,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:46:27,983 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-30 22:46:27,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:27,984 INFO L225 Difference]: With dead ends: 160 [2021-08-30 22:46:27,984 INFO L226 Difference]: Without dead ends: 158 [2021-08-30 22:46:27,984 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.39ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:46:27,985 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 230 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 162.75ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:27,985 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 0 Invalid, 215 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [13 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 162.75ms Time] [2021-08-30 22:46:27,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2021-08-30 22:46:27,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 111. [2021-08-30 22:46:27,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 100 states have (on average 1.36) internal successors, (136), 110 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:27,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 136 transitions. [2021-08-30 22:46:27,989 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 136 transitions. Word has length 15 [2021-08-30 22:46:27,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:27,990 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 136 transitions. [2021-08-30 22:46:27,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 22:46:27,990 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 136 transitions. [2021-08-30 22:46:27,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-08-30 22:46:27,990 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:27,990 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:27,990 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-30 22:46:27,990 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:27,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:27,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1418335763, now seen corresponding path program 1 times [2021-08-30 22:46:27,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:27,991 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318566729] [2021-08-30 22:46:27,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:27,991 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:28,049 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 22:46:28,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:28,050 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318566729] [2021-08-30 22:46:28,050 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318566729] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:28,050 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:28,050 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:46:28,050 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677915974] [2021-08-30 22:46:28,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:46:28,051 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:28,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:46:28,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:46:28,051 INFO L87 Difference]: Start difference. First operand 111 states and 136 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 22:46:28,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:28,276 INFO L93 Difference]: Finished difference Result 200 states and 237 transitions. [2021-08-30 22:46:28,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:46:28,276 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-08-30 22:46:28,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:28,277 INFO L225 Difference]: With dead ends: 200 [2021-08-30 22:46:28,277 INFO L226 Difference]: Without dead ends: 197 [2021-08-30 22:46:28,277 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.25ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:46:28,277 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 126 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 163.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.99ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 210.27ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:28,277 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [126 Valid, 0 Invalid, 405 Unknown, 0 Unchecked, 0.99ms Time], IncrementalHoareTripleChecker [11 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 210.27ms Time] [2021-08-30 22:46:28,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2021-08-30 22:46:28,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 99. [2021-08-30 22:46:28,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 91 states have (on average 1.3626373626373627) internal successors, (124), 98 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 22:46:28,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 124 transitions. [2021-08-30 22:46:28,281 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 124 transitions. Word has length 15 [2021-08-30 22:46:28,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:28,281 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 124 transitions. [2021-08-30 22:46:28,281 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 22:46:28,281 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 124 transitions. [2021-08-30 22:46:28,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-08-30 22:46:28,282 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:28,282 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:28,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-30 22:46:28,282 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:28,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:28,282 INFO L82 PathProgramCache]: Analyzing trace with hash 367470027, now seen corresponding path program 1 times [2021-08-30 22:46:28,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:28,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637995670] [2021-08-30 22:46:28,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:28,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:28,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:28,330 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 22:46:28,330 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:28,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637995670] [2021-08-30 22:46:28,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1637995670] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:28,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:28,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-30 22:46:28,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229882918] [2021-08-30 22:46:28,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 22:46:28,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:28,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 22:46:28,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:46:28,331 INFO L87 Difference]: Start difference. First operand 99 states and 124 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:28,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:28,666 INFO L93 Difference]: Finished difference Result 266 states and 317 transitions. [2021-08-30 22:46:28,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-30 22:46:28,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-08-30 22:46:28,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:28,667 INFO L225 Difference]: With dead ends: 266 [2021-08-30 22:46:28,667 INFO L226 Difference]: Without dead ends: 230 [2021-08-30 22:46:28,667 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 45.69ms TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2021-08-30 22:46:28,668 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 314 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 666 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 215.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.44ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 666 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 278.86ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:28,668 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 0 Invalid, 684 Unknown, 0 Unchecked, 2.44ms Time], IncrementalHoareTripleChecker [18 Valid, 666 Invalid, 0 Unknown, 0 Unchecked, 278.86ms Time] [2021-08-30 22:46:28,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2021-08-30 22:46:28,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 129. [2021-08-30 22:46:28,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 121 states have (on average 1.3471074380165289) internal successors, (163), 128 states have internal predecessors, (163), 0 states have call successors, (0), 0 states 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 22:46:28,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 163 transitions. [2021-08-30 22:46:28,673 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 163 transitions. Word has length 18 [2021-08-30 22:46:28,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:28,673 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 163 transitions. [2021-08-30 22:46:28,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:28,673 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 163 transitions. [2021-08-30 22:46:28,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-30 22:46:28,674 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:28,674 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:28,674 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-30 22:46:28,674 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:28,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:28,674 INFO L82 PathProgramCache]: Analyzing trace with hash 1008645611, now seen corresponding path program 1 times [2021-08-30 22:46:28,675 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:28,675 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598408795] [2021-08-30 22:46:28,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:28,675 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:28,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:28,738 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 22:46:28,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:28,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598408795] [2021-08-30 22:46:28,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [598408795] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:28,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:28,739 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-30 22:46:28,739 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786672499] [2021-08-30 22:46:28,739 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 22:46:28,739 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:28,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 22:46:28,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:46:28,740 INFO L87 Difference]: Start difference. First operand 129 states and 163 transitions. Second operand has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:28,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:28,972 INFO L93 Difference]: Finished difference Result 190 states and 233 transitions. [2021-08-30 22:46:28,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 22:46:28,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-08-30 22:46:28,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:28,973 INFO L225 Difference]: With dead ends: 190 [2021-08-30 22:46:28,973 INFO L226 Difference]: Without dead ends: 131 [2021-08-30 22:46:28,973 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.37ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-30 22:46:28,974 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 36 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 554 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 153.76ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 563 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.44ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 202.49ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:28,974 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 0 Invalid, 563 Unknown, 0 Unchecked, 1.44ms Time], IncrementalHoareTripleChecker [9 Valid, 554 Invalid, 0 Unknown, 0 Unchecked, 202.49ms Time] [2021-08-30 22:46:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-08-30 22:46:28,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2021-08-30 22:46:28,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 121 states have (on average 1.3140495867768596) internal successors, (159), 128 states have internal predecessors, (159), 0 states have call successors, (0), 0 states 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 22:46:28,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 159 transitions. [2021-08-30 22:46:28,978 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 159 transitions. Word has length 20 [2021-08-30 22:46:28,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:28,979 INFO L470 AbstractCegarLoop]: Abstraction has 129 states and 159 transitions. [2021-08-30 22:46:28,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.3333333333333335) internal successors, (20), 6 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:28,979 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 159 transitions. [2021-08-30 22:46:28,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-30 22:46:28,979 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:28,979 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:28,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-08-30 22:46:28,979 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:28,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:28,980 INFO L82 PathProgramCache]: Analyzing trace with hash 28946906, now seen corresponding path program 1 times [2021-08-30 22:46:28,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:28,980 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079356426] [2021-08-30 22:46:28,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:28,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:29,065 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 22:46:29,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:29,065 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079356426] [2021-08-30 22:46:29,065 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079356426] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:29,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:29,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-30 22:46:29,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204455806] [2021-08-30 22:46:29,066 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 22:46:29,066 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:29,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 22:46:29,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:46:29,067 INFO L87 Difference]: Start difference. First operand 129 states and 159 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 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 22:46:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:29,458 INFO L93 Difference]: Finished difference Result 246 states and 286 transitions. [2021-08-30 22:46:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-30 22:46:29,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 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) Word has length 24 [2021-08-30 22:46:29,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:29,459 INFO L225 Difference]: With dead ends: 246 [2021-08-30 22:46:29,460 INFO L226 Difference]: Without dead ends: 211 [2021-08-30 22:46:29,460 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.01ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-08-30 22:46:29,460 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 227 mSDsluCounter, 541 mSDsCounter, 0 mSdLazyCounter, 733 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 267.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.26ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 733 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 338.52ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:29,460 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 0 Invalid, 742 Unknown, 0 Unchecked, 2.26ms Time], IncrementalHoareTripleChecker [9 Valid, 733 Invalid, 0 Unknown, 0 Unchecked, 338.52ms Time] [2021-08-30 22:46:29,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2021-08-30 22:46:29,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 157. [2021-08-30 22:46:29,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 149 states have (on average 1.3020134228187918) internal successors, (194), 156 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 22:46:29,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 194 transitions. [2021-08-30 22:46:29,472 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 194 transitions. Word has length 24 [2021-08-30 22:46:29,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:29,472 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 194 transitions. [2021-08-30 22:46:29,472 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 7 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 22:46:29,473 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 194 transitions. [2021-08-30 22:46:29,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-30 22:46:29,473 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:29,473 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:29,473 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-30 22:46:29,473 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:29,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:29,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1112635696, now seen corresponding path program 1 times [2021-08-30 22:46:29,474 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:29,474 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139986624] [2021-08-30 22:46:29,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:29,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:29,536 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 22:46:29,536 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:29,536 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139986624] [2021-08-30 22:46:29,536 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139986624] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:29,536 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:29,536 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-30 22:46:29,537 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376666304] [2021-08-30 22:46:29,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-08-30 22:46:29,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-08-30 22:46:29,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-08-30 22:46:29,538 INFO L87 Difference]: Start difference. First operand 157 states and 194 transitions. Second operand has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 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 22:46:29,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:29,791 INFO L93 Difference]: Finished difference Result 185 states and 222 transitions. [2021-08-30 22:46:29,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 22:46:29,791 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 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) Word has length 26 [2021-08-30 22:46:29,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:29,792 INFO L225 Difference]: With dead ends: 185 [2021-08-30 22:46:29,792 INFO L226 Difference]: Without dead ends: 116 [2021-08-30 22:46:29,793 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 26.29ms TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-30 22:46:29,793 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 24 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 159.96ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.27ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 222.10ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:29,793 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 0 Invalid, 551 Unknown, 0 Unchecked, 1.27ms Time], IncrementalHoareTripleChecker [4 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 222.10ms Time] [2021-08-30 22:46:29,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2021-08-30 22:46:29,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 114. [2021-08-30 22:46:29,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 106 states have (on average 1.320754716981132) internal successors, (140), 113 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:29,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 140 transitions. [2021-08-30 22:46:29,798 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 140 transitions. Word has length 26 [2021-08-30 22:46:29,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:29,798 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 140 transitions. [2021-08-30 22:46:29,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 7 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 22:46:29,799 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 140 transitions. [2021-08-30 22:46:29,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-08-30 22:46:29,799 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:29,799 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:29,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-30 22:46:29,800 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:29,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:29,800 INFO L82 PathProgramCache]: Analyzing trace with hash 479159525, now seen corresponding path program 1 times [2021-08-30 22:46:29,800 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:29,800 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092145296] [2021-08-30 22:46:29,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:29,801 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:29,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:29,851 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 22:46:29,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:29,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092145296] [2021-08-30 22:46:29,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092145296] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:29,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:29,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-30 22:46:29,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681163772] [2021-08-30 22:46:29,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-30 22:46:29,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:29,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-30 22:46:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:46:29,855 INFO L87 Difference]: Start difference. First operand 114 states and 140 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states 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 22:46:30,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:30,052 INFO L93 Difference]: Finished difference Result 244 states and 294 transitions. [2021-08-30 22:46:30,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 22:46:30,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 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 28 [2021-08-30 22:46:30,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:30,053 INFO L225 Difference]: With dead ends: 244 [2021-08-30 22:46:30,053 INFO L226 Difference]: Without dead ends: 201 [2021-08-30 22:46:30,053 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.30ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:46:30,054 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 68 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 430 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 141.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.98ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 179.42ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:30,054 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 0 Invalid, 432 Unknown, 0 Unchecked, 0.98ms Time], IncrementalHoareTripleChecker [2 Valid, 430 Invalid, 0 Unknown, 0 Unchecked, 179.42ms Time] [2021-08-30 22:46:30,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2021-08-30 22:46:30,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 157. [2021-08-30 22:46:30,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 149 states have (on average 1.2885906040268456) internal successors, (192), 156 states have internal predecessors, (192), 0 states have call successors, (0), 0 states 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 22:46:30,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 192 transitions. [2021-08-30 22:46:30,061 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 192 transitions. Word has length 28 [2021-08-30 22:46:30,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:30,061 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 192 transitions. [2021-08-30 22:46:30,061 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states 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 22:46:30,062 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 192 transitions. [2021-08-30 22:46:30,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-08-30 22:46:30,062 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:30,062 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:30,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-08-30 22:46:30,063 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:30,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:30,063 INFO L82 PathProgramCache]: Analyzing trace with hash -2129165813, now seen corresponding path program 1 times [2021-08-30 22:46:30,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:30,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612308354] [2021-08-30 22:46:30,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:30,063 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:30,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:30,114 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 22:46:30,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:30,114 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612308354] [2021-08-30 22:46:30,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612308354] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:30,114 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:30,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-08-30 22:46:30,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474496404] [2021-08-30 22:46:30,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-30 22:46:30,116 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:30,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-30 22:46:30,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-08-30 22:46:30,116 INFO L87 Difference]: Start difference. First operand 157 states and 192 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:30,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:30,467 INFO L93 Difference]: Finished difference Result 346 states and 407 transitions. [2021-08-30 22:46:30,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-30 22:46:30,468 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-08-30 22:46:30,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:30,469 INFO L225 Difference]: With dead ends: 346 [2021-08-30 22:46:30,469 INFO L226 Difference]: Without dead ends: 303 [2021-08-30 22:46:30,469 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 50.65ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-08-30 22:46:30,470 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 291 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 226.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 556 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.33ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 284.72ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:30,470 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [291 Valid, 0 Invalid, 556 Unknown, 0 Unchecked, 2.33ms Time], IncrementalHoareTripleChecker [10 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 284.72ms Time] [2021-08-30 22:46:30,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2021-08-30 22:46:30,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 223. [2021-08-30 22:46:30,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 222 states have internal predecessors, (272), 0 states have call successors, (0), 0 states 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 22:46:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 272 transitions. [2021-08-30 22:46:30,479 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 272 transitions. Word has length 30 [2021-08-30 22:46:30,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:30,480 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 272 transitions. [2021-08-30 22:46:30,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 272 transitions. [2021-08-30 22:46:30,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-30 22:46:30,481 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:30,481 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:30,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-08-30 22:46:30,481 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:30,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:30,482 INFO L82 PathProgramCache]: Analyzing trace with hash -689181099, now seen corresponding path program 1 times [2021-08-30 22:46:30,482 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:30,482 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128973964] [2021-08-30 22:46:30,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:30,482 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:30,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:30,563 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 22:46:30,563 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:30,563 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128973964] [2021-08-30 22:46:30,563 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128973964] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:30,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:30,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-08-30 22:46:30,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041842534] [2021-08-30 22:46:30,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-08-30 22:46:30,564 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:30,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-08-30 22:46:30,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2021-08-30 22:46:30,565 INFO L87 Difference]: Start difference. First operand 223 states and 272 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states 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 22:46:30,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:30,958 INFO L93 Difference]: Finished difference Result 275 states and 323 transitions. [2021-08-30 22:46:30,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 22:46:30,958 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2021-08-30 22:46:30,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:30,959 INFO L225 Difference]: With dead ends: 275 [2021-08-30 22:46:30,959 INFO L226 Difference]: Without dead ends: 274 [2021-08-30 22:46:30,959 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 72.20ms TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-08-30 22:46:30,960 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 249 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 267.39ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 249 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 827 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.17ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 323.18ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:30,960 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [249 Valid, 0 Invalid, 827 Unknown, 0 Unchecked, 2.17ms Time], IncrementalHoareTripleChecker [8 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 323.18ms Time] [2021-08-30 22:46:30,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2021-08-30 22:46:30,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 223. [2021-08-30 22:46:30,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 215 states have (on average 1.2651162790697674) internal successors, (272), 222 states have internal predecessors, (272), 0 states have call successors, (0), 0 states 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 22:46:30,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 272 transitions. [2021-08-30 22:46:30,968 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 272 transitions. Word has length 32 [2021-08-30 22:46:30,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:30,968 INFO L470 AbstractCegarLoop]: Abstraction has 223 states and 272 transitions. [2021-08-30 22:46:30,968 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 0 states have call successors, (0), 0 states 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 22:46:30,968 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 272 transitions. [2021-08-30 22:46:30,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-08-30 22:46:30,969 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:30,969 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:30,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-08-30 22:46:30,969 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:30,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:30,969 INFO L82 PathProgramCache]: Analyzing trace with hash -689121517, now seen corresponding path program 1 times [2021-08-30 22:46:30,970 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:30,970 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263283018] [2021-08-30 22:46:30,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:30,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:31,139 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 22:46:31,139 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:31,139 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263283018] [2021-08-30 22:46:31,139 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263283018] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:31,140 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:31,140 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-08-30 22:46:31,140 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614009911] [2021-08-30 22:46:31,140 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-30 22:46:31,140 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:31,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-30 22:46:31,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-08-30 22:46:31,141 INFO L87 Difference]: Start difference. First operand 223 states and 272 transitions. Second operand has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states 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 22:46:31,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:31,684 INFO L93 Difference]: Finished difference Result 274 states and 322 transitions. [2021-08-30 22:46:31,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-30 22:46:31,684 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 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 32 [2021-08-30 22:46:31,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:31,685 INFO L225 Difference]: With dead ends: 274 [2021-08-30 22:46:31,685 INFO L226 Difference]: Without dead ends: 273 [2021-08-30 22:46:31,686 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 139.89ms TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2021-08-30 22:46:31,686 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 244 mSDsluCounter, 637 mSDsCounter, 0 mSdLazyCounter, 847 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 363.37ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.66ms SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 847 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 436.86ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:31,686 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [244 Valid, 0 Invalid, 856 Unknown, 0 Unchecked, 2.66ms Time], IncrementalHoareTripleChecker [9 Valid, 847 Invalid, 0 Unknown, 0 Unchecked, 436.86ms Time] [2021-08-30 22:46:31,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-08-30 22:46:31,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 220. [2021-08-30 22:46:31,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 212 states have (on average 1.2641509433962264) internal successors, (268), 219 states have internal predecessors, (268), 0 states have call successors, (0), 0 states 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 22:46:31,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 268 transitions. [2021-08-30 22:46:31,695 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 268 transitions. Word has length 32 [2021-08-30 22:46:31,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:31,696 INFO L470 AbstractCegarLoop]: Abstraction has 220 states and 268 transitions. [2021-08-30 22:46:31,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.0) internal successors, (32), 9 states have internal predecessors, (32), 0 states have call successors, (0), 0 states 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 22:46:31,696 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 268 transitions. [2021-08-30 22:46:31,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-30 22:46:31,697 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:31,697 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:31,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-08-30 22:46:31,697 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:31,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:31,698 INFO L82 PathProgramCache]: Analyzing trace with hash 376523311, now seen corresponding path program 1 times [2021-08-30 22:46:31,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:31,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142750583] [2021-08-30 22:46:31,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:31,698 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:46:31,868 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 22:46:31,868 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:46:31,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142750583] [2021-08-30 22:46:31,868 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142750583] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:46:31,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:46:31,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-08-30 22:46:31,869 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815346159] [2021-08-30 22:46:31,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-30 22:46:31,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:46:31,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-30 22:46:31,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-08-30 22:46:31,870 INFO L87 Difference]: Start difference. First operand 220 states and 268 transitions. Second operand has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 0 states have call successors, (0), 0 states 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 22:46:32,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:46:32,453 INFO L93 Difference]: Finished difference Result 277 states and 324 transitions. [2021-08-30 22:46:32,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-30 22:46:32,453 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 0 states have call successors, (0), 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 34 [2021-08-30 22:46:32,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:46:32,454 INFO L225 Difference]: With dead ends: 277 [2021-08-30 22:46:32,454 INFO L226 Difference]: Without dead ends: 276 [2021-08-30 22:46:32,455 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 142.58ms TimeCoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2021-08-30 22:46:32,455 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 256 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 1123 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 391.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.39ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 1123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 467.52ms IncrementalHoareTripleChecker+Time [2021-08-30 22:46:32,455 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [256 Valid, 0 Invalid, 1138 Unknown, 0 Unchecked, 3.39ms Time], IncrementalHoareTripleChecker [15 Valid, 1123 Invalid, 0 Unknown, 0 Unchecked, 467.52ms Time] [2021-08-30 22:46:32,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-08-30 22:46:32,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 222. [2021-08-30 22:46:32,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 214 states have (on average 1.2616822429906542) internal successors, (270), 221 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:46:32,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 270 transitions. [2021-08-30 22:46:32,466 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 270 transitions. Word has length 34 [2021-08-30 22:46:32,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:46:32,466 INFO L470 AbstractCegarLoop]: Abstraction has 222 states and 270 transitions. [2021-08-30 22:46:32,466 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 10 states have internal predecessors, (34), 0 states have call successors, (0), 0 states 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 22:46:32,466 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 270 transitions. [2021-08-30 22:46:32,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-30 22:46:32,467 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:46:32,467 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-30 22:46:32,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-08-30 22:46:32,467 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2021-08-30 22:46:32,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:46:32,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1316923839, now seen corresponding path program 1 times [2021-08-30 22:46:32,468 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:46:32,468 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511242228] [2021-08-30 22:46:32,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:46:32,468 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:46:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:46:32,478 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 22:46:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:46:32,513 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-30 22:46:32,514 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 22:46:32,514 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 28 remaining) [2021-08-30 22:46:32,515 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 28 remaining) [2021-08-30 22:46:32,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 28 remaining) [2021-08-30 22:46:32,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 28 remaining) [2021-08-30 22:46:32,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 28 remaining) [2021-08-30 22:46:32,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 28 remaining) [2021-08-30 22:46:32,516 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 28 remaining) [2021-08-30 22:46:32,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 28 remaining) [2021-08-30 22:46:32,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 28 remaining) [2021-08-30 22:46:32,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 28 remaining) [2021-08-30 22:46:32,518 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 28 remaining) [2021-08-30 22:46:32,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 28 remaining) [2021-08-30 22:46:32,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 28 remaining) [2021-08-30 22:46:32,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 28 remaining) [2021-08-30 22:46:32,519 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 28 remaining) [2021-08-30 22:46:32,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 28 remaining) [2021-08-30 22:46:32,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 28 remaining) [2021-08-30 22:46:32,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 28 remaining) [2021-08-30 22:46:32,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 28 remaining) [2021-08-30 22:46:32,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 28 remaining) [2021-08-30 22:46:32,520 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 28 remaining) [2021-08-30 22:46:32,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 28 remaining) [2021-08-30 22:46:32,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 28 remaining) [2021-08-30 22:46:32,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 28 remaining) [2021-08-30 22:46:32,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 28 remaining) [2021-08-30 22:46:32,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 28 remaining) [2021-08-30 22:46:32,521 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 28 remaining) [2021-08-30 22:46:32,522 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 28 remaining) [2021-08-30 22:46:32,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-08-30 22:46:32,527 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:46:32,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:46:32 BoogieIcfgContainer [2021-08-30 22:46:32,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:46:32,562 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:46:32,562 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:46:32,562 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:46:32,563 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:46:25" (3/4) ... [2021-08-30 22:46:32,565 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-30 22:46:32,565 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:46:32,565 INFO L158 Benchmark]: Toolchain (without parser) took 8101.52ms. Allocated memory was 52.4MB in the beginning and 134.2MB in the end (delta: 81.8MB). Free memory was 29.3MB in the beginning and 78.6MB in the end (delta: -49.3MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2021-08-30 22:46:32,565 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 35.1MB in the beginning and 35.1MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:46:32,565 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.86ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.1MB in the beginning and 44.3MB in the end (delta: -15.1MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2021-08-30 22:46:32,565 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.99ms. Allocated memory is still 62.9MB. Free memory was 44.3MB in the beginning and 41.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:46:32,566 INFO L158 Benchmark]: Boogie Preprocessor took 25.56ms. Allocated memory is still 62.9MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:46:32,566 INFO L158 Benchmark]: RCFGBuilder took 315.19ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 39.9MB in the end (delta: 104.9kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-08-30 22:46:32,566 INFO L158 Benchmark]: TraceAbstraction took 7438.91ms. Allocated memory was 62.9MB in the beginning and 134.2MB in the end (delta: 71.3MB). Free memory was 39.5MB in the beginning and 78.6MB in the end (delta: -39.1MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2021-08-30 22:46:32,566 INFO L158 Benchmark]: Witness Printer took 2.63ms. Allocated memory is still 134.2MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:46:32,567 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 52.4MB. Free memory was 35.1MB in the beginning and 35.1MB in the end (delta: 37.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 262.86ms. Allocated memory was 52.4MB in the beginning and 62.9MB in the end (delta: 10.5MB). Free memory was 29.1MB in the beginning and 44.3MB in the end (delta: -15.1MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.99ms. Allocated memory is still 62.9MB. Free memory was 44.3MB in the beginning and 41.8MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.56ms. Allocated memory is still 62.9MB. Free memory was 41.8MB in the beginning and 40.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 315.19ms. Allocated memory is still 62.9MB. Free memory was 40.0MB in the beginning and 39.9MB in the end (delta: 104.9kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 7438.91ms. Allocated memory was 62.9MB in the beginning and 134.2MB in the end (delta: 71.3MB). Free memory was 39.5MB in the beginning and 78.6MB in the end (delta: -39.1MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. * Witness Printer took 2.63ms. Allocated memory is still 134.2MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseOr at line 103, overapproximation of bitwiseAnd at line 104. Possible FailurePath: [L219] unsigned int a ; [L220] unsigned int ma = __VERIFIER_nondet_uint(); [L221] signed char ea = __VERIFIER_nondet_char(); [L222] unsigned int b ; [L223] unsigned int mb = __VERIFIER_nondet_uint(); [L224] signed char eb = __VERIFIER_nondet_char(); [L225] unsigned int r_add ; [L226] unsigned int zero ; [L227] int sa ; [L228] int sb ; [L229] int tmp ; [L230] int tmp___0 ; [L231] int tmp___1 ; [L232] int tmp___2 ; [L233] int tmp___3 ; [L234] int tmp___4 ; [L235] int tmp___5 ; [L236] int tmp___6 ; [L237] int tmp___7 ; [L238] int tmp___8 ; [L239] int tmp___9 ; [L240] int __retres23 ; [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND TRUE ! m [L23] __retres4 = 0U [L73] return (__retres4); [L244] zero = base2flt(0, 0) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND TRUE m >= 1U << 25U [L57] COND TRUE e >= 127 [L58] __retres4 = 4294967295U [L73] return (__retres4); [L245] a = base2flt(ma, ea) [L18] unsigned int res ; [L19] unsigned int __retres4 ; [L22] COND FALSE !(! m) [L28] COND FALSE !(m < 1U << 24U) [L50] COND TRUE 1 [L52] COND FALSE !(m >= 1U << 25U) [L69] m = m & ~ (1U << 24U) [L70] EXPR e + 128 [L70] res = m | ((unsigned int ) (e + 128) << 24U) [L71] __retres4 = res [L73] return (__retres4); [L246] b = base2flt(mb, eb) [L248] COND FALSE !(a < zero) [L251] COND TRUE a > zero [L252] tmp = 1 [L256] sa = tmp [L258] COND FALSE !(b < zero) [L261] COND TRUE b > zero [L262] tmp___0 = 1 [L266] sb = tmp___0 [L77] unsigned int res ; [L78] unsigned int ma ; [L79] unsigned int mb ; [L80] unsigned int delta ; [L81] int ea ; [L82] int eb ; [L83] unsigned int tmp ; [L84] unsigned int __retres10 ; [L87] COND FALSE !(a < b) [L94] COND FALSE !(! b) [L101] ma = a & ((1U << 24U) - 1U) [L102] EXPR (int )(a >> 24U) - 128 [L102] ea = (int )(a >> 24U) - 128 [L103] ma = ma | (1U << 24U) [L104] mb = b & ((1U << 24U) - 1U) [L105] (int )(b >> 24U) - 128 - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 38]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 63]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 102]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 126]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 134]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 28 error locations. Started 1 CEGAR loops. OverallTime: 7358.94ms, OverallIterations: 20, TraceHistogramMax: 2, EmptinessCheckTime: 28.04ms, AutomataDifference: 5368.65ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 14.19ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3023 SdHoareTripleChecker+Valid, 4512.34ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3023 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 3579.91ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5389 mSDsCounter, 203 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9017 IncrementalHoareTripleChecker+Invalid, 9220 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 203 mSolverCounterUnsat, 0 mSDtfsCounter, 9017 mSolverCounterSat, 34.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 105 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 612.39ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=223occurred in iteration=16, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 173.19ms AutomataMinimizationTime, 19 MinimizatonAttempts, 918 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.15ms SsaConstructionTime, 229.76ms SatisfiabilityAnalysisTime, 1021.01ms InterpolantComputationTime, 406 NumberOfCodeBlocks, 406 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 352 ConstructedInterpolants, 0 QuantifiedInterpolants, 1337 SizeOfPredicates, 0 NumberOfNonLiveVariables, 66 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 20 InterpolantComputations, 19 PerfectInterpolantSequences, 2/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-30 22:46:32,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...