./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/psyco/psyco_abp_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version f4b24e32 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/psyco/psyco_abp_1-2.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 167b835a28653099821c6834c1cc6b8e30303efac27d569b21e43e89592d7586 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 13:56:52,583 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 13:56:52,585 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 13:56:52,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 13:56:52,622 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 13:56:52,623 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 13:56:52,624 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 13:56:52,626 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 13:56:52,627 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 13:56:52,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 13:56:52,631 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 13:56:52,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 13:56:52,633 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 13:56:52,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 13:56:52,635 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 13:56:52,638 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 13:56:52,639 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 13:56:52,640 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 13:56:52,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 13:56:52,645 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 13:56:52,646 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 13:56:52,647 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 13:56:52,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 13:56:52,648 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 13:56:52,649 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 13:56:52,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 13:56:52,654 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 13:56:52,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 13:56:52,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 13:56:52,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 13:56:52,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 13:56:52,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 13:56:52,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 13:56:52,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 13:56:52,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 13:56:52,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 13:56:52,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 13:56:52,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 13:56:52,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 13:56:52,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 13:56:52,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 13:56:52,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 13:56:52,664 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-07-14 13:56:52,686 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 13:56:52,686 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 13:56:52,687 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 13:56:52,687 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 13:56:52,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-14 13:56:52,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-14 13:56:52,688 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 13:56:52,688 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 13:56:52,688 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 13:56:52,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 13:56:52,689 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 13:56:52,689 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 13:56:52,690 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 13:56:52,690 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 13:56:52,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 13:56:52,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-14 13:56:52,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-14 13:56:52,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-14 13:56:52,690 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-07-14 13:56:52,691 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 13:56:52,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 13:56:52,692 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 13:56:52,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-14 13:56:52,692 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 13:56:52,692 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 13:56:52,692 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-14 13:56:52,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:56:52,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 13:56:52,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-14 13:56:52,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-14 13:56:52,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 13:56:52,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-14 13:56:52,693 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-14 13:56:52,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 167b835a28653099821c6834c1cc6b8e30303efac27d569b21e43e89592d7586 [2022-07-14 13:56:52,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 13:56:52,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 13:56:52,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 13:56:52,920 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 13:56:52,921 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 13:56:52,922 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-2.c [2022-07-14 13:56:52,981 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d97b3b8/3a7f3c9149574b67b2d832012252baba/FLAGeb67b546c [2022-07-14 13:56:53,362 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 13:56:53,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-2.c [2022-07-14 13:56:53,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d97b3b8/3a7f3c9149574b67b2d832012252baba/FLAGeb67b546c [2022-07-14 13:56:53,777 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a4d97b3b8/3a7f3c9149574b67b2d832012252baba [2022-07-14 13:56:53,779 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 13:56:53,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 13:56:53,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 13:56:53,782 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 13:56:53,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 13:56:53,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:56:53" (1/1) ... [2022-07-14 13:56:53,785 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1aba83b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:53, skipping insertion in model container [2022-07-14 13:56:53,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 01:56:53" (1/1) ... [2022-07-14 13:56:53,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 13:56:53,819 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 13:56:53,999 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-2.c[24706,24719] [2022-07-14 13:56:54,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:56:54,007 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 13:56:54,048 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-2.c[24706,24719] [2022-07-14 13:56:54,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 13:56:54,058 INFO L208 MainTranslator]: Completed translation [2022-07-14 13:56:54,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54 WrapperNode [2022-07-14 13:56:54,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 13:56:54,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 13:56:54,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 13:56:54,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 13:56:54,065 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,121 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 467 [2022-07-14 13:56:54,122 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 13:56:54,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 13:56:54,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 13:56:54,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 13:56:54,128 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,132 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,148 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,155 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 13:56:54,156 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 13:56:54,156 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 13:56:54,156 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 13:56:54,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (1/1) ... [2022-07-14 13:56:54,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-14 13:56:54,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:54,237 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) [2022-07-14 13:56:54,279 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 [2022-07-14 13:56:54,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 13:56:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 13:56:54,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 13:56:54,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 13:56:54,358 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 13:56:54,360 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 13:56:54,918 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 13:56:54,926 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 13:56:54,927 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-07-14 13:56:54,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:56:54 BoogieIcfgContainer [2022-07-14 13:56:54,929 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 13:56:54,931 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-14 13:56:54,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-14 13:56:54,934 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-14 13:56:54,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.07 01:56:53" (1/3) ... [2022-07-14 13:56:54,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e24023c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:56:54, skipping insertion in model container [2022-07-14 13:56:54,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 01:56:54" (2/3) ... [2022-07-14 13:56:54,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e24023c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.07 01:56:54, skipping insertion in model container [2022-07-14 13:56:54,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 01:56:54" (3/3) ... [2022-07-14 13:56:54,936 INFO L111 eAbstractionObserver]: Analyzing ICFG psyco_abp_1-2.c [2022-07-14 13:56:54,949 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-14 13:56:54,949 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2022-07-14 13:56:54,991 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-14 13:56:54,995 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@447eeb24, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@18496011 [2022-07-14 13:56:54,995 INFO L358 AbstractCegarLoop]: Starting to check reachability of 42 error locations. [2022-07-14 13:56:54,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 194 states, 151 states have (on average 1.9602649006622517) internal successors, (296), 193 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:55,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-07-14 13:56:55,003 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:55,003 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:55,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:55,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:55,008 INFO L85 PathProgramCache]: Analyzing trace with hash -1422697969, now seen corresponding path program 1 times [2022-07-14 13:56:55,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:55,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544515268] [2022-07-14 13:56:55,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:55,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:55,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:55,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:55,155 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544515268] [2022-07-14 13:56:55,156 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544515268] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:55,156 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:55,156 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:56:55,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411104178] [2022-07-14 13:56:55,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:55,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:55,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:55,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:55,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:55,186 INFO L87 Difference]: Start difference. First operand has 194 states, 151 states have (on average 1.9602649006622517) internal successors, (296), 193 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-07-14 13:56:55,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:55,322 INFO L93 Difference]: Finished difference Result 389 states and 596 transitions. [2022-07-14 13:56:55,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:55,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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 [2022-07-14 13:56:55,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:55,331 INFO L225 Difference]: With dead ends: 389 [2022-07-14 13:56:55,331 INFO L226 Difference]: Without dead ends: 166 [2022-07-14 13:56:55,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:55,335 INFO L413 NwaCegarLoop]: 290 mSDtfsCounter, 4 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:55,336 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 534 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:55,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-07-14 13:56:55,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-07-14 13:56:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 124 states have (on average 1.685483870967742) internal successors, (209), 165 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:55,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 209 transitions. [2022-07-14 13:56:55,362 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 209 transitions. Word has length 10 [2022-07-14 13:56:55,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:55,363 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 209 transitions. [2022-07-14 13:56:55,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 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) [2022-07-14 13:56:55,363 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 209 transitions. [2022-07-14 13:56:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-07-14 13:56:55,364 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:55,364 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:55,364 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-14 13:56:55,364 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:55,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:55,365 INFO L85 PathProgramCache]: Analyzing trace with hash 658032322, now seen corresponding path program 1 times [2022-07-14 13:56:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:55,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244940285] [2022-07-14 13:56:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:55,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:55,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:55,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244940285] [2022-07-14 13:56:55,407 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244940285] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:55,407 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:55,407 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:56:55,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994775177] [2022-07-14 13:56:55,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:55,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:55,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:55,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:55,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:55,414 INFO L87 Difference]: Start difference. First operand 166 states and 209 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-07-14 13:56:55,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:55,513 INFO L93 Difference]: Finished difference Result 321 states and 407 transitions. [2022-07-14 13:56:55,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:55,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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 [2022-07-14 13:56:55,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:55,515 INFO L225 Difference]: With dead ends: 321 [2022-07-14 13:56:55,515 INFO L226 Difference]: Without dead ends: 261 [2022-07-14 13:56:55,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:55,517 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 151 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:55,517 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 326 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:55,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2022-07-14 13:56:55,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 252. [2022-07-14 13:56:55,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 210 states have (on average 1.6238095238095238) internal successors, (341), 251 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:55,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 341 transitions. [2022-07-14 13:56:55,527 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 341 transitions. Word has length 15 [2022-07-14 13:56:55,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:55,527 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 341 transitions. [2022-07-14 13:56:55,527 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 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) [2022-07-14 13:56:55,528 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 341 transitions. [2022-07-14 13:56:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-07-14 13:56:55,528 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:55,528 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:55,528 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-14 13:56:55,529 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:55,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:55,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1008871492, now seen corresponding path program 1 times [2022-07-14 13:56:55,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:55,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126284361] [2022-07-14 13:56:55,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:55,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:55,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:55,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:55,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126284361] [2022-07-14 13:56:55,564 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126284361] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:55,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:55,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-07-14 13:56:55,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033374149] [2022-07-14 13:56:55,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:55,565 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:55,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:55,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:55,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:55,566 INFO L87 Difference]: Start difference. First operand 252 states and 341 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:55,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:55,606 INFO L93 Difference]: Finished difference Result 355 states and 487 transitions. [2022-07-14 13:56:55,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:55,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-07-14 13:56:55,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:55,610 INFO L225 Difference]: With dead ends: 355 [2022-07-14 13:56:55,610 INFO L226 Difference]: Without dead ends: 347 [2022-07-14 13:56:55,614 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:55,615 INFO L413 NwaCegarLoop]: 199 mSDtfsCounter, 123 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:55,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 381 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:55,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2022-07-14 13:56:55,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 342. [2022-07-14 13:56:55,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 300 states have (on average 1.5766666666666667) internal successors, (473), 341 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:55,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 473 transitions. [2022-07-14 13:56:55,627 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 473 transitions. Word has length 17 [2022-07-14 13:56:55,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:55,627 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 473 transitions. [2022-07-14 13:56:55,627 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:55,628 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 473 transitions. [2022-07-14 13:56:55,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-07-14 13:56:55,629 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:55,629 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:55,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-14 13:56:55,629 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:55,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:55,630 INFO L85 PathProgramCache]: Analyzing trace with hash 166348385, now seen corresponding path program 1 times [2022-07-14 13:56:55,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:55,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620623402] [2022-07-14 13:56:55,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:55,630 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:55,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,715 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-07-14 13:56:55,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:55,715 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620623402] [2022-07-14 13:56:55,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620623402] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:55,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:55,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:56:55,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666055741] [2022-07-14 13:56:55,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:55,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:55,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:55,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:55,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:55,718 INFO L87 Difference]: Start difference. First operand 342 states and 473 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-07-14 13:56:55,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:55,743 INFO L93 Difference]: Finished difference Result 696 states and 970 transitions. [2022-07-14 13:56:55,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:55,744 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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 25 [2022-07-14 13:56:55,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:55,745 INFO L225 Difference]: With dead ends: 696 [2022-07-14 13:56:55,745 INFO L226 Difference]: Without dead ends: 357 [2022-07-14 13:56:55,748 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:55,755 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 39 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:55,757 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 354 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:55,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2022-07-14 13:56:55,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 357. [2022-07-14 13:56:55,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 357 states, 315 states have (on average 1.5492063492063493) internal successors, (488), 356 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:55,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 357 states and 488 transitions. [2022-07-14 13:56:55,777 INFO L78 Accepts]: Start accepts. Automaton has 357 states and 488 transitions. Word has length 25 [2022-07-14 13:56:55,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:55,777 INFO L495 AbstractCegarLoop]: Abstraction has 357 states and 488 transitions. [2022-07-14 13:56:55,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 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) [2022-07-14 13:56:55,778 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 488 transitions. [2022-07-14 13:56:55,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-07-14 13:56:55,781 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:55,781 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:55,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-14 13:56:55,781 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:55,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:55,782 INFO L85 PathProgramCache]: Analyzing trace with hash 110617732, now seen corresponding path program 1 times [2022-07-14 13:56:55,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:55,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460910206] [2022-07-14 13:56:55,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:55,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:55,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,854 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:55,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:55,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460910206] [2022-07-14 13:56:55,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460910206] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:55,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1094957755] [2022-07-14 13:56:55,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:55,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:55,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:55,858 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) [2022-07-14 13:56:55,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-14 13:56:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:55,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 13:56:55,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:55,994 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:55,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:56,025 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:56,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1094957755] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:56,025 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:56,025 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-14 13:56:56,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369243975] [2022-07-14 13:56:56,026 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:56,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 13:56:56,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:56,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 13:56:56,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:56,027 INFO L87 Difference]: Start difference. First operand 357 states and 488 transitions. Second operand has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:56,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:56,243 INFO L93 Difference]: Finished difference Result 636 states and 912 transitions. [2022-07-14 13:56:56,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 13:56:56,243 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 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 [2022-07-14 13:56:56,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:56,245 INFO L225 Difference]: With dead ends: 636 [2022-07-14 13:56:56,245 INFO L226 Difference]: Without dead ends: 619 [2022-07-14 13:56:56,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:56,248 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 743 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:56,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 728 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 13:56:56,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-07-14 13:56:56,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 435. [2022-07-14 13:56:56,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 408 states have (on average 1.5465686274509804) internal successors, (631), 434 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:56,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 631 transitions. [2022-07-14 13:56:56,266 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 631 transitions. Word has length 28 [2022-07-14 13:56:56,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:56,267 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 631 transitions. [2022-07-14 13:56:56,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.666666666666666) internal successors, (58), 7 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:56,267 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 631 transitions. [2022-07-14 13:56:56,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 13:56:56,270 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:56,271 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:56,290 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:56,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:56,487 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:56,488 INFO L85 PathProgramCache]: Analyzing trace with hash -865818952, now seen corresponding path program 1 times [2022-07-14 13:56:56,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:56,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451528238] [2022-07-14 13:56:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:56,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:56,542 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-07-14 13:56:56,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:56,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451528238] [2022-07-14 13:56:56,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451528238] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:56,542 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:56,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:56:56,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057007382] [2022-07-14 13:56:56,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:56,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:56,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:56,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:56,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:56,544 INFO L87 Difference]: Start difference. First operand 435 states and 631 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2022-07-14 13:56:56,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:56,556 INFO L93 Difference]: Finished difference Result 871 states and 1263 transitions. [2022-07-14 13:56:56,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:56,564 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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 29 [2022-07-14 13:56:56,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:56,566 INFO L225 Difference]: With dead ends: 871 [2022-07-14 13:56:56,566 INFO L226 Difference]: Without dead ends: 435 [2022-07-14 13:56:56,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:56,567 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 0 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:56,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 376 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:56,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2022-07-14 13:56:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2022-07-14 13:56:56,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 408 states have (on average 1.536764705882353) internal successors, (627), 434 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:56,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 627 transitions. [2022-07-14 13:56:56,574 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 627 transitions. Word has length 29 [2022-07-14 13:56:56,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:56,574 INFO L495 AbstractCegarLoop]: Abstraction has 435 states and 627 transitions. [2022-07-14 13:56:56,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 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) [2022-07-14 13:56:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 627 transitions. [2022-07-14 13:56:56,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-07-14 13:56:56,575 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:56,575 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:56,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-14 13:56:56,576 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:56,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:56,576 INFO L85 PathProgramCache]: Analyzing trace with hash -865817286, now seen corresponding path program 1 times [2022-07-14 13:56:56,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:56,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836341850] [2022-07-14 13:56:56,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:56,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:56,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:56,605 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:56,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:56,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836341850] [2022-07-14 13:56:56,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836341850] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:56,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987252983] [2022-07-14 13:56:56,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:56,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:56,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:56,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:56,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-14 13:56:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:56,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 13:56:56,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:56,727 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:56,727 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:56:56,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987252983] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:56,729 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:56:56,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-07-14 13:56:56,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227856875] [2022-07-14 13:56:56,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:56,729 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-14 13:56:56,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:56,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-14 13:56:56,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:56:56,730 INFO L87 Difference]: Start difference. First operand 435 states and 627 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:56,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:56,796 INFO L93 Difference]: Finished difference Result 444 states and 633 transitions. [2022-07-14 13:56:56,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:56:56,796 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2022-07-14 13:56:56,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:56,798 INFO L225 Difference]: With dead ends: 444 [2022-07-14 13:56:56,798 INFO L226 Difference]: Without dead ends: 401 [2022-07-14 13:56:56,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-14 13:56:56,799 INFO L413 NwaCegarLoop]: 267 mSDtfsCounter, 315 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:56,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 390 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:56,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2022-07-14 13:56:56,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 392. [2022-07-14 13:56:56,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 382 states have (on average 1.4895287958115184) internal successors, (569), 391 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:56,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 569 transitions. [2022-07-14 13:56:56,806 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 569 transitions. Word has length 29 [2022-07-14 13:56:56,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:56,806 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 569 transitions. [2022-07-14 13:56:56,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:56,806 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 569 transitions. [2022-07-14 13:56:56,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-07-14 13:56:56,807 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:56,807 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 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] [2022-07-14 13:56:56,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:57,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-07-14 13:56:57,026 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:57,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:57,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1173253948, now seen corresponding path program 1 times [2022-07-14 13:56:57,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:57,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052996657] [2022-07-14 13:56:57,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:57,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,054 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:57,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:57,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052996657] [2022-07-14 13:56:57,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052996657] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:57,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [92986423] [2022-07-14 13:56:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:57,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:57,072 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:57,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-14 13:56:57,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-14 13:56:57,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:57,184 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:57,184 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:57,214 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 13:56:57,214 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [92986423] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:57,214 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:57,214 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2022-07-14 13:56:57,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007434818] [2022-07-14 13:56:57,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:57,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-14 13:56:57,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:57,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-14 13:56:57,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-14 13:56:57,216 INFO L87 Difference]: Start difference. First operand 392 states and 569 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:57,259 INFO L93 Difference]: Finished difference Result 397 states and 575 transitions. [2022-07-14 13:56:57,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-14 13:56:57,260 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-07-14 13:56:57,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:57,261 INFO L225 Difference]: With dead ends: 397 [2022-07-14 13:56:57,261 INFO L226 Difference]: Without dead ends: 389 [2022-07-14 13:56:57,261 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-07-14 13:56:57,262 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 826 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:57,262 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 257 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:57,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2022-07-14 13:56:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 289. [2022-07-14 13:56:57,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 287 states have (on average 1.4390243902439024) internal successors, (413), 288 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 413 transitions. [2022-07-14 13:56:57,268 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 413 transitions. Word has length 31 [2022-07-14 13:56:57,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:57,268 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 413 transitions. [2022-07-14 13:56:57,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,268 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 413 transitions. [2022-07-14 13:56:57,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-07-14 13:56:57,269 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:57,269 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:57,287 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:57,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:57,486 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:57,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:57,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1024418114, now seen corresponding path program 1 times [2022-07-14 13:56:57,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:57,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23811357] [2022-07-14 13:56:57,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,504 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-07-14 13:56:57,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:57,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23811357] [2022-07-14 13:56:57,504 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23811357] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:57,504 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:57,504 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:56:57,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890167655] [2022-07-14 13:56:57,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:57,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:57,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:57,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:57,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:57,506 INFO L87 Difference]: Start difference. First operand 289 states and 413 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2022-07-14 13:56:57,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:57,522 INFO L93 Difference]: Finished difference Result 506 states and 726 transitions. [2022-07-14 13:56:57,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:57,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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 47 [2022-07-14 13:56:57,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:57,523 INFO L225 Difference]: With dead ends: 506 [2022-07-14 13:56:57,523 INFO L226 Difference]: Without dead ends: 220 [2022-07-14 13:56:57,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:57,524 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 22 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:57,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 238 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:57,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-07-14 13:56:57,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2022-07-14 13:56:57,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 218 states have (on average 1.4220183486238531) internal successors, (310), 219 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 310 transitions. [2022-07-14 13:56:57,529 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 310 transitions. Word has length 47 [2022-07-14 13:56:57,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:57,529 INFO L495 AbstractCegarLoop]: Abstraction has 220 states and 310 transitions. [2022-07-14 13:56:57,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 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) [2022-07-14 13:56:57,529 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 310 transitions. [2022-07-14 13:56:57,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-07-14 13:56:57,530 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:57,530 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 2, 2, 2, 2, 2, 2, 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] [2022-07-14 13:56:57,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-14 13:56:57,530 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:57,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:57,531 INFO L85 PathProgramCache]: Analyzing trace with hash 983432675, now seen corresponding path program 1 times [2022-07-14 13:56:57,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:57,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416580957] [2022-07-14 13:56:57,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:57,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-07-14 13:56:57,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:57,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416580957] [2022-07-14 13:56:57,561 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416580957] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:57,561 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:57,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:56:57,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956103894] [2022-07-14 13:56:57,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:57,562 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:57,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:57,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:57,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:57,562 INFO L87 Difference]: Start difference. First operand 220 states and 310 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:57,584 INFO L93 Difference]: Finished difference Result 453 states and 645 transitions. [2022-07-14 13:56:57,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:57,584 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2022-07-14 13:56:57,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:57,585 INFO L225 Difference]: With dead ends: 453 [2022-07-14 13:56:57,585 INFO L226 Difference]: Without dead ends: 236 [2022-07-14 13:56:57,586 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:57,586 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 30 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:57,586 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 234 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:57,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states. [2022-07-14 13:56:57,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 236. [2022-07-14 13:56:57,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 236 states, 234 states have (on average 1.4017094017094016) internal successors, (328), 235 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 236 states to 236 states and 328 transitions. [2022-07-14 13:56:57,591 INFO L78 Accepts]: Start accepts. Automaton has 236 states and 328 transitions. Word has length 55 [2022-07-14 13:56:57,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:57,592 INFO L495 AbstractCegarLoop]: Abstraction has 236 states and 328 transitions. [2022-07-14 13:56:57,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 328 transitions. [2022-07-14 13:56:57,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-07-14 13:56:57,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:57,593 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:57,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-14 13:56:57,593 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:57,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:57,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1592888312, now seen corresponding path program 1 times [2022-07-14 13:56:57,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:57,594 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415951269] [2022-07-14 13:56:57,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:57,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,634 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-07-14 13:56:57,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:57,635 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415951269] [2022-07-14 13:56:57,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415951269] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:57,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:57,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:56:57,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185171387] [2022-07-14 13:56:57,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:57,636 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:57,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:57,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:57,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:57,637 INFO L87 Difference]: Start difference. First operand 236 states and 328 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:57,655 INFO L93 Difference]: Finished difference Result 445 states and 617 transitions. [2022-07-14 13:56:57,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:57,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 63 [2022-07-14 13:56:57,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:57,656 INFO L225 Difference]: With dead ends: 445 [2022-07-14 13:56:57,657 INFO L226 Difference]: Without dead ends: 212 [2022-07-14 13:56:57,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:57,658 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 55 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:57,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 171 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:57,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-07-14 13:56:57,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-07-14 13:56:57,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 210 states have (on average 1.3523809523809525) internal successors, (284), 211 states have internal predecessors, (284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 284 transitions. [2022-07-14 13:56:57,662 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 284 transitions. Word has length 63 [2022-07-14 13:56:57,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:57,662 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 284 transitions. [2022-07-14 13:56:57,663 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,663 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 284 transitions. [2022-07-14 13:56:57,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-07-14 13:56:57,663 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:57,663 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:57,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-14 13:56:57,664 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:57,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:57,664 INFO L85 PathProgramCache]: Analyzing trace with hash -1013294547, now seen corresponding path program 1 times [2022-07-14 13:56:57,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:57,664 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939340151] [2022-07-14 13:56:57,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,696 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-07-14 13:56:57,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:57,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939340151] [2022-07-14 13:56:57,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939340151] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:56:57,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:56:57,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:56:57,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936670441] [2022-07-14 13:56:57,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:56:57,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:56:57,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:57,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:56:57,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:57,698 INFO L87 Difference]: Start difference. First operand 212 states and 284 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:57,709 INFO L93 Difference]: Finished difference Result 329 states and 440 transitions. [2022-07-14 13:56:57,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:56:57,710 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2022-07-14 13:56:57,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:57,711 INFO L225 Difference]: With dead ends: 329 [2022-07-14 13:56:57,711 INFO L226 Difference]: Without dead ends: 212 [2022-07-14 13:56:57,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:56:57,711 INFO L413 NwaCegarLoop]: 120 mSDtfsCounter, 0 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:57,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 234 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:56:57,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-07-14 13:56:57,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 212. [2022-07-14 13:56:57,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 210 states have (on average 1.3428571428571427) internal successors, (282), 211 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 282 transitions. [2022-07-14 13:56:57,718 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 282 transitions. Word has length 73 [2022-07-14 13:56:57,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:57,718 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 282 transitions. [2022-07-14 13:56:57,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 3 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:57,719 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 282 transitions. [2022-07-14 13:56:57,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-07-14 13:56:57,720 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:57,720 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:57,720 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-14 13:56:57,720 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:57,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:57,721 INFO L85 PathProgramCache]: Analyzing trace with hash -504021519, now seen corresponding path program 1 times [2022-07-14 13:56:57,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:57,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588586397] [2022-07-14 13:56:57,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:57,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,781 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 10 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-14 13:56:57,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:57,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588586397] [2022-07-14 13:56:57,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588586397] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:57,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1551306003] [2022-07-14 13:56:57,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:57,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:57,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:57,783 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:57,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-14 13:56:57,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:57,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 6 conjunts are in the unsatisfiable core [2022-07-14 13:56:57,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:57,957 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 10 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-14 13:56:57,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:58,026 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 10 proven. 33 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-07-14 13:56:58,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1551306003] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:58,027 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:58,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2022-07-14 13:56:58,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082763165] [2022-07-14 13:56:58,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:58,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-07-14 13:56:58,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:58,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-07-14 13:56:58,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-14 13:56:58,028 INFO L87 Difference]: Start difference. First operand 212 states and 282 transitions. Second operand has 9 states, 8 states have (on average 17.5) internal successors, (140), 9 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) [2022-07-14 13:56:58,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:58,133 INFO L93 Difference]: Finished difference Result 590 states and 790 transitions. [2022-07-14 13:56:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-14 13:56:58,133 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 17.5) internal successors, (140), 9 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-07-14 13:56:58,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:58,135 INFO L225 Difference]: With dead ends: 590 [2022-07-14 13:56:58,135 INFO L226 Difference]: Without dead ends: 588 [2022-07-14 13:56:58,136 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2022-07-14 13:56:58,136 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 962 mSDsluCounter, 683 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 790 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:58,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [962 Valid, 790 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:58,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2022-07-14 13:56:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 588. [2022-07-14 13:56:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 588 states, 586 states have (on average 1.3344709897610922) internal successors, (782), 587 states have internal predecessors, (782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 588 states to 588 states and 782 transitions. [2022-07-14 13:56:58,146 INFO L78 Accepts]: Start accepts. Automaton has 588 states and 782 transitions. Word has length 75 [2022-07-14 13:56:58,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:58,146 INFO L495 AbstractCegarLoop]: Abstraction has 588 states and 782 transitions. [2022-07-14 13:56:58,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 17.5) internal successors, (140), 9 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) [2022-07-14 13:56:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand 588 states and 782 transitions. [2022-07-14 13:56:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-14 13:56:58,148 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:58,148 INFO L195 NwaCegarLoop]: trace histogram [14, 13, 9, 9, 6, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:58,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:58,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:58,367 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:58,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:58,367 INFO L85 PathProgramCache]: Analyzing trace with hash -550120753, now seen corresponding path program 2 times [2022-07-14 13:56:58,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:58,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645317433] [2022-07-14 13:56:58,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:58,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:58,488 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 26 proven. 429 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 13:56:58,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:58,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645317433] [2022-07-14 13:56:58,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645317433] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:58,488 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586206415] [2022-07-14 13:56:58,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:56:58,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:58,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:58,503 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:58,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-14 13:56:58,663 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:56:58,663 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:56:58,666 INFO L263 TraceCheckSpWp]: Trace formula consists of 989 conjuncts, 14 conjunts are in the unsatisfiable core [2022-07-14 13:56:58,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:56:58,858 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 26 proven. 429 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 13:56:58,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:56:59,069 INFO L134 CoverageAnalysis]: Checked inductivity of 479 backedges. 26 proven. 429 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-14 13:56:59,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586206415] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:56:59,070 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:56:59,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2022-07-14 13:56:59,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588365048] [2022-07-14 13:56:59,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:56:59,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-07-14 13:56:59,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:56:59,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-07-14 13:56:59,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2022-07-14 13:56:59,072 INFO L87 Difference]: Start difference. First operand 588 states and 782 transitions. Second operand has 17 states, 16 states have (on average 22.25) internal successors, (356), 17 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:59,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:56:59,287 INFO L93 Difference]: Finished difference Result 1342 states and 1798 transitions. [2022-07-14 13:56:59,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-07-14 13:56:59,288 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 22.25) internal successors, (356), 17 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 195 [2022-07-14 13:56:59,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:56:59,293 INFO L225 Difference]: With dead ends: 1342 [2022-07-14 13:56:59,293 INFO L226 Difference]: Without dead ends: 1340 [2022-07-14 13:56:59,294 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 387 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2022-07-14 13:56:59,294 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 2517 mSDsluCounter, 1374 mSDsCounter, 0 mSdLazyCounter, 185 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2517 SdHoareTripleChecker+Valid, 1481 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 185 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:56:59,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2517 Valid, 1481 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 185 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:56:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2022-07-14 13:56:59,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1340. [2022-07-14 13:56:59,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1340 states, 1338 states have (on average 1.3318385650224216) internal successors, (1782), 1339 states have internal predecessors, (1782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:59,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1340 states to 1340 states and 1782 transitions. [2022-07-14 13:56:59,334 INFO L78 Accepts]: Start accepts. Automaton has 1340 states and 1782 transitions. Word has length 195 [2022-07-14 13:56:59,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:56:59,335 INFO L495 AbstractCegarLoop]: Abstraction has 1340 states and 1782 transitions. [2022-07-14 13:56:59,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 22.25) internal successors, (356), 17 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:56:59,335 INFO L276 IsEmpty]: Start isEmpty. Operand 1340 states and 1782 transitions. [2022-07-14 13:56:59,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2022-07-14 13:56:59,341 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:56:59,341 INFO L195 NwaCegarLoop]: trace histogram [30, 29, 21, 21, 14, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:56:59,369 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-14 13:56:59,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-14 13:56:59,559 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:56:59,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:56:59,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1799263883, now seen corresponding path program 3 times [2022-07-14 13:56:59,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:56:59,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701857610] [2022-07-14 13:56:59,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:56:59,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:56:59,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:56:59,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2655 backedges. 58 proven. 2541 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-07-14 13:56:59,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:56:59,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701857610] [2022-07-14 13:56:59,930 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701857610] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:56:59,930 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517427107] [2022-07-14 13:56:59,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 13:56:59,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:56:59,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:56:59,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:56:59,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-14 13:57:00,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-07-14 13:57:00,037 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:00,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 10 conjunts are in the unsatisfiable core [2022-07-14 13:57:00,042 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:00,128 INFO L134 CoverageAnalysis]: Checked inductivity of 2655 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 2306 trivial. 0 not checked. [2022-07-14 13:57:00,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-14 13:57:00,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517427107] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:00,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-14 13:57:00,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [16] total 20 [2022-07-14 13:57:00,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160074925] [2022-07-14 13:57:00,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:00,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-14 13:57:00,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:00,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-14 13:57:00,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=241, Unknown=0, NotChecked=0, Total=420 [2022-07-14 13:57:00,131 INFO L87 Difference]: Start difference. First operand 1340 states and 1782 transitions. Second operand has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:00,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:00,219 INFO L93 Difference]: Finished difference Result 1368 states and 1810 transitions. [2022-07-14 13:57:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-14 13:57:00,219 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 435 [2022-07-14 13:57:00,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:00,223 INFO L225 Difference]: With dead ends: 1368 [2022-07-14 13:57:00,223 INFO L226 Difference]: Without dead ends: 1367 [2022-07-14 13:57:00,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=185, Invalid=277, Unknown=0, NotChecked=0, Total=462 [2022-07-14 13:57:00,225 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 147 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:00,226 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 371 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-14 13:57:00,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1367 states. [2022-07-14 13:57:00,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1367 to 1291. [2022-07-14 13:57:00,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1291 states, 1290 states have (on average 1.331782945736434) internal successors, (1718), 1290 states have internal predecessors, (1718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:00,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1291 states to 1291 states and 1718 transitions. [2022-07-14 13:57:00,266 INFO L78 Accepts]: Start accepts. Automaton has 1291 states and 1718 transitions. Word has length 435 [2022-07-14 13:57:00,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:00,267 INFO L495 AbstractCegarLoop]: Abstraction has 1291 states and 1718 transitions. [2022-07-14 13:57:00,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.0) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:00,267 INFO L276 IsEmpty]: Start isEmpty. Operand 1291 states and 1718 transitions. [2022-07-14 13:57:00,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2022-07-14 13:57:00,271 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:00,272 INFO L195 NwaCegarLoop]: trace histogram [31, 30, 22, 22, 14, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:00,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-07-14 13:57:00,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-07-14 13:57:00,506 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:57:00,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:00,507 INFO L85 PathProgramCache]: Analyzing trace with hash -223366827, now seen corresponding path program 1 times [2022-07-14 13:57:00,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:00,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843300464] [2022-07-14 13:57:00,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:00,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:00,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:00,675 INFO L134 CoverageAnalysis]: Checked inductivity of 2852 backedges. 722 proven. 0 refuted. 0 times theorem prover too weak. 2130 trivial. 0 not checked. [2022-07-14 13:57:00,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:00,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843300464] [2022-07-14 13:57:00,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843300464] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 13:57:00,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 13:57:00,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 13:57:00,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682826005] [2022-07-14 13:57:00,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 13:57:00,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-07-14 13:57:00,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:00,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 13:57:00,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:00,677 INFO L87 Difference]: Start difference. First operand 1291 states and 1718 transitions. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:00,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:00,699 INFO L93 Difference]: Finished difference Result 1956 states and 2601 transitions. [2022-07-14 13:57:00,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 13:57:00,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 449 [2022-07-14 13:57:00,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:00,702 INFO L225 Difference]: With dead ends: 1956 [2022-07-14 13:57:00,702 INFO L226 Difference]: Without dead ends: 716 [2022-07-14 13:57:00,703 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 13:57:00,704 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 20 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:00,704 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 197 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-14 13:57:00,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2022-07-14 13:57:00,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2022-07-14 13:57:00,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.3160839160839162) internal successors, (941), 715 states have internal predecessors, (941), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:00,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 941 transitions. [2022-07-14 13:57:00,717 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 941 transitions. Word has length 449 [2022-07-14 13:57:00,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:00,718 INFO L495 AbstractCegarLoop]: Abstraction has 716 states and 941 transitions. [2022-07-14 13:57:00,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:00,718 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 941 transitions. [2022-07-14 13:57:00,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2022-07-14 13:57:00,736 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:00,736 INFO L195 NwaCegarLoop]: trace histogram [32, 31, 23, 23, 15, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:00,736 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-07-14 13:57:00,737 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:57:00,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:00,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1896228307, now seen corresponding path program 2 times [2022-07-14 13:57:00,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:00,737 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078830329] [2022-07-14 13:57:00,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:00,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 3069 backedges. 62 proven. 2946 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-07-14 13:57:01,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:01,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078830329] [2022-07-14 13:57:01,108 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078830329] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:01,108 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67373454] [2022-07-14 13:57:01,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-14 13:57:01,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:01,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:01,119 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:01,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-14 13:57:01,416 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-14 13:57:01,417 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:01,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 2252 conjuncts, 32 conjunts are in the unsatisfiable core [2022-07-14 13:57:01,429 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:01,815 INFO L134 CoverageAnalysis]: Checked inductivity of 3069 backedges. 62 proven. 2946 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-07-14 13:57:01,815 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:02,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3069 backedges. 62 proven. 2946 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-07-14 13:57:02,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67373454] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:02,494 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:02,494 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-07-14 13:57:02,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822275206] [2022-07-14 13:57:02,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:02,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-07-14 13:57:02,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:02,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-07-14 13:57:02,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2022-07-14 13:57:02,496 INFO L87 Difference]: Start difference. First operand 716 states and 941 transitions. Second operand has 35 states, 34 states have (on average 24.705882352941178) internal successors, (840), 35 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:02,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:02,868 INFO L93 Difference]: Finished difference Result 1545 states and 2039 transitions. [2022-07-14 13:57:02,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-14 13:57:02,869 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 24.705882352941178) internal successors, (840), 35 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 465 [2022-07-14 13:57:02,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:02,873 INFO L225 Difference]: With dead ends: 1545 [2022-07-14 13:57:02,873 INFO L226 Difference]: Without dead ends: 1544 [2022-07-14 13:57:02,873 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 960 GetRequests, 927 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=595, Invalid=595, Unknown=0, NotChecked=0, Total=1190 [2022-07-14 13:57:02,874 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 4375 mSDsluCounter, 2306 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4375 SdHoareTripleChecker+Valid, 2412 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:02,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4375 Valid, 2412 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-14 13:57:02,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1544 states. [2022-07-14 13:57:02,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1544 to 1544. [2022-07-14 13:57:02,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1544 states, 1543 states have (on average 1.3156189241736875) internal successors, (2030), 1543 states have internal predecessors, (2030), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:02,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1544 states to 1544 states and 2030 transitions. [2022-07-14 13:57:02,895 INFO L78 Accepts]: Start accepts. Automaton has 1544 states and 2030 transitions. Word has length 465 [2022-07-14 13:57:02,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:02,896 INFO L495 AbstractCegarLoop]: Abstraction has 1544 states and 2030 transitions. [2022-07-14 13:57:02,896 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 24.705882352941178) internal successors, (840), 35 states have internal predecessors, (840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1544 states and 2030 transitions. [2022-07-14 13:57:02,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1006 [2022-07-14 13:57:02,911 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:02,912 INFO L195 NwaCegarLoop]: trace histogram [68, 67, 50, 50, 33, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:02,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:03,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:03,131 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:57:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:03,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2085613894, now seen corresponding path program 3 times [2022-07-14 13:57:03,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:03,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418540983] [2022-07-14 13:57:03,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:03,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:03,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:04,329 INFO L134 CoverageAnalysis]: Checked inductivity of 14913 backedges. 134 proven. 14646 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-14 13:57:04,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:04,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418540983] [2022-07-14 13:57:04,329 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418540983] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:04,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89384086] [2022-07-14 13:57:04,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-07-14 13:57:04,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:04,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:04,331 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:04,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-14 13:57:05,328 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 28 check-sat command(s) [2022-07-14 13:57:05,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:05,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 4781 conjuncts, 68 conjunts are in the unsatisfiable core [2022-07-14 13:57:05,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:06,285 INFO L134 CoverageAnalysis]: Checked inductivity of 14913 backedges. 134 proven. 14646 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-14 13:57:06,286 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 14913 backedges. 134 proven. 14646 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2022-07-14 13:57:08,043 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [89384086] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:08,043 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:08,043 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 70 [2022-07-14 13:57:08,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261444697] [2022-07-14 13:57:08,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:08,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-07-14 13:57:08,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:08,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-07-14 13:57:08,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2022-07-14 13:57:08,048 INFO L87 Difference]: Start difference. First operand 1544 states and 2030 transitions. Second operand has 71 states, 70 states have (on average 25.885714285714286) internal successors, (1812), 71 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:10,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:10,019 INFO L93 Difference]: Finished difference Result 3201 states and 4226 transitions. [2022-07-14 13:57:10,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-07-14 13:57:10,020 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 70 states have (on average 25.885714285714286) internal successors, (1812), 71 states have internal predecessors, (1812), 0 states have call successors, (0), 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 1005 [2022-07-14 13:57:10,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:10,028 INFO L225 Difference]: With dead ends: 3201 [2022-07-14 13:57:10,028 INFO L226 Difference]: Without dead ends: 3200 [2022-07-14 13:57:10,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2076 GetRequests, 2007 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=2485, Invalid=2485, Unknown=0, NotChecked=0, Total=4970 [2022-07-14 13:57:10,030 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 12363 mSDsluCounter, 5196 mSDsCounter, 0 mSdLazyCounter, 640 mSolverCounterSat, 409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12363 SdHoareTripleChecker+Valid, 5302 SdHoareTripleChecker+Invalid, 1049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 409 IncrementalHoareTripleChecker+Valid, 640 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:10,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12363 Valid, 5302 Invalid, 1049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [409 Valid, 640 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-07-14 13:57:10,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3200 states. [2022-07-14 13:57:10,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3200 to 3200. [2022-07-14 13:57:10,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 3199 states have (on average 1.315411065958112) internal successors, (4208), 3199 states have internal predecessors, (4208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:10,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 4208 transitions. [2022-07-14 13:57:10,075 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 4208 transitions. Word has length 1005 [2022-07-14 13:57:10,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:10,076 INFO L495 AbstractCegarLoop]: Abstraction has 3200 states and 4208 transitions. [2022-07-14 13:57:10,077 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 70 states have (on average 25.885714285714286) internal successors, (1812), 71 states have internal predecessors, (1812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:10,077 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 4208 transitions. [2022-07-14 13:57:10,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2086 [2022-07-14 13:57:10,162 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:10,163 INFO L195 NwaCegarLoop]: trace histogram [140, 139, 104, 104, 69, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:10,186 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-07-14 13:57:10,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-07-14 13:57:10,382 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:57:10,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:10,382 INFO L85 PathProgramCache]: Analyzing trace with hash 1334439688, now seen corresponding path program 4 times [2022-07-14 13:57:10,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:10,382 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163543719] [2022-07-14 13:57:10,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:10,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:11,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:13,315 INFO L134 CoverageAnalysis]: Checked inductivity of 65331 backedges. 278 proven. 64776 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-07-14 13:57:13,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:13,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163543719] [2022-07-14 13:57:13,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163543719] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:13,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1425312129] [2022-07-14 13:57:13,316 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-07-14 13:57:13,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:13,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:13,317 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:13,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-14 13:57:14,706 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-07-14 13:57:14,706 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:57:14,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 9839 conjuncts, 140 conjunts are in the unsatisfiable core [2022-07-14 13:57:14,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:57:16,610 INFO L134 CoverageAnalysis]: Checked inductivity of 65331 backedges. 278 proven. 64776 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-07-14 13:57:16,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:57:20,740 INFO L134 CoverageAnalysis]: Checked inductivity of 65331 backedges. 278 proven. 64776 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-07-14 13:57:20,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1425312129] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:57:20,740 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:57:20,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [71, 71, 71] total 142 [2022-07-14 13:57:20,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166346149] [2022-07-14 13:57:20,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:57:20,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-07-14 13:57:20,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:57:20,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-07-14 13:57:20,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2022-07-14 13:57:20,758 INFO L87 Difference]: Start difference. First operand 3200 states and 4208 transitions. Second operand has 143 states, 142 states have (on average 26.450704225352112) internal successors, (3756), 143 states have internal predecessors, (3756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:40,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 13:57:40,758 INFO L93 Difference]: Finished difference Result 6513 states and 8600 transitions. [2022-07-14 13:57:40,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 142 states. [2022-07-14 13:57:40,759 INFO L78 Accepts]: Start accepts. Automaton has has 143 states, 142 states have (on average 26.450704225352112) internal successors, (3756), 143 states have internal predecessors, (3756), 0 states have call successors, (0), 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 2085 [2022-07-14 13:57:40,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-14 13:57:40,793 INFO L225 Difference]: With dead ends: 6513 [2022-07-14 13:57:40,793 INFO L226 Difference]: Without dead ends: 6512 [2022-07-14 13:57:40,798 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4308 GetRequests, 4167 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=10153, Invalid=10153, Unknown=0, NotChecked=0, Total=20306 [2022-07-14 13:57:40,798 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 30740 mSDsluCounter, 10473 mSDsCounter, 0 mSdLazyCounter, 1277 mSolverCounterSat, 1154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30740 SdHoareTripleChecker+Valid, 10579 SdHoareTripleChecker+Invalid, 2431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1154 IncrementalHoareTripleChecker+Valid, 1277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-14 13:57:40,799 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30740 Valid, 10579 Invalid, 2431 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1154 Valid, 1277 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-14 13:57:40,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6512 states. [2022-07-14 13:57:40,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6512 to 6512. [2022-07-14 13:57:40,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6512 states, 6511 states have (on average 1.3153125479956995) internal successors, (8564), 6511 states have internal predecessors, (8564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:40,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6512 states to 6512 states and 8564 transitions. [2022-07-14 13:57:40,903 INFO L78 Accepts]: Start accepts. Automaton has 6512 states and 8564 transitions. Word has length 2085 [2022-07-14 13:57:40,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-14 13:57:40,904 INFO L495 AbstractCegarLoop]: Abstraction has 6512 states and 8564 transitions. [2022-07-14 13:57:40,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 142 states have (on average 26.450704225352112) internal successors, (3756), 143 states have internal predecessors, (3756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 13:57:40,906 INFO L276 IsEmpty]: Start isEmpty. Operand 6512 states and 8564 transitions. [2022-07-14 13:57:40,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4246 [2022-07-14 13:57:40,997 INFO L187 NwaCegarLoop]: Found error trace [2022-07-14 13:57:40,998 INFO L195 NwaCegarLoop]: trace histogram [284, 283, 212, 212, 141, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-14 13:57:41,027 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-14 13:57:41,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:41,202 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 39 more)] === [2022-07-14 13:57:41,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 13:57:41,204 INFO L85 PathProgramCache]: Analyzing trace with hash -2062095964, now seen corresponding path program 5 times [2022-07-14 13:57:41,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 13:57:41,204 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588590991] [2022-07-14 13:57:41,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 13:57:41,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 13:57:43,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 13:57:53,080 INFO L134 CoverageAnalysis]: Checked inductivity of 273087 backedges. 566 proven. 271956 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-07-14 13:57:53,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 13:57:53,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588590991] [2022-07-14 13:57:53,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588590991] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-14 13:57:53,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619019838] [2022-07-14 13:57:53,083 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-07-14 13:57:53,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-14 13:57:53,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 13:57:53,085 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-14 13:57:53,086 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-14 13:58:29,338 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 103 check-sat command(s) [2022-07-14 13:58:29,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-14 13:58:29,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 19955 conjuncts, 284 conjunts are in the unsatisfiable core [2022-07-14 13:58:29,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-14 13:58:32,804 INFO L134 CoverageAnalysis]: Checked inductivity of 273087 backedges. 566 proven. 271956 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-07-14 13:58:32,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-14 13:58:47,877 INFO L134 CoverageAnalysis]: Checked inductivity of 273087 backedges. 566 proven. 271956 refuted. 0 times theorem prover too weak. 565 trivial. 0 not checked. [2022-07-14 13:58:47,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619019838] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-14 13:58:47,877 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-07-14 13:58:47,878 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [143, 143, 143] total 286 [2022-07-14 13:58:47,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895833935] [2022-07-14 13:58:47,878 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-07-14 13:58:47,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 287 states [2022-07-14 13:58:47,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 13:58:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 287 interpolants. [2022-07-14 13:58:47,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41041, Invalid=41041, Unknown=0, NotChecked=0, Total=82082 [2022-07-14 13:58:47,902 INFO L87 Difference]: Start difference. First operand 6512 states and 8564 transitions. Second operand has 287 states, 286 states have (on average 26.727272727272727) internal successors, (7644), 287 states have internal predecessors, (7644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)