./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive/recHanoi03-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c3fed411 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive/recHanoi03-2.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 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-16 09:03:59,898 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-16 09:03:59,899 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-16 09:03:59,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-16 09:03:59,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-16 09:03:59,940 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-16 09:03:59,941 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-16 09:03:59,942 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-16 09:03:59,943 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-16 09:03:59,944 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-16 09:03:59,944 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-16 09:03:59,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-16 09:03:59,946 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-16 09:03:59,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-16 09:03:59,947 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-16 09:03:59,948 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-16 09:03:59,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-16 09:03:59,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-16 09:03:59,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-16 09:03:59,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-16 09:03:59,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-16 09:03:59,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-16 09:03:59,955 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-16 09:03:59,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-16 09:03:59,957 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-16 09:03:59,958 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-16 09:03:59,958 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-16 09:03:59,959 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-16 09:03:59,959 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-16 09:03:59,960 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-16 09:03:59,960 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-16 09:03:59,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-16 09:03:59,963 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-16 09:03:59,964 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-16 09:03:59,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-16 09:03:59,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-16 09:03:59,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-16 09:03:59,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-16 09:03:59,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-16 09:03:59,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-16 09:03:59,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-16 09:03:59,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2021-12-16 09:03:59,988 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-16 09:03:59,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-16 09:03:59,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-16 09:03:59,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-16 09:03:59,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-16 09:03:59,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-16 09:03:59,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-16 09:03:59,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-16 09:03:59,990 INFO L138 SettingsManager]: * Use SBE=true [2021-12-16 09:03:59,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-16 09:03:59,991 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-16 09:03:59,991 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-16 09:03:59,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-16 09:03:59,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-16 09:03:59,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-16 09:03:59,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-16 09:03:59,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-16 09:03:59,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-16 09:03:59,992 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-12-16 09:03:59,992 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-16 09:03:59,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-16 09:03:59,992 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-16 09:03:59,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-16 09:03:59,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-16 09:03:59,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-16 09:03:59,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-16 09:03:59,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 09:03:59,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-16 09:03:59,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-16 09:03:59,994 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-16 09:03:59,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-16 09:03:59,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-16 09:03:59,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-16 09:03:59,994 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-16 09:03:59,994 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6256a35b65d93a8e45ad38c9510c3be689a890aeee58265a5723be13a7385a72 [2021-12-16 09:04:00,158 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-16 09:04:00,171 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-16 09:04:00,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-16 09:04:00,173 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-16 09:04:00,173 INFO L275 PluginConnector]: CDTParser initialized [2021-12-16 09:04:00,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive/recHanoi03-2.c [2021-12-16 09:04:00,246 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e7a13f51/4afc05bcf0364634bc8f6c44078f1afb/FLAG03d986b7e [2021-12-16 09:04:00,622 INFO L306 CDTParser]: Found 1 translation units. [2021-12-16 09:04:00,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi03-2.c [2021-12-16 09:04:00,630 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e7a13f51/4afc05bcf0364634bc8f6c44078f1afb/FLAG03d986b7e [2021-12-16 09:04:00,642 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e7a13f51/4afc05bcf0364634bc8f6c44078f1afb [2021-12-16 09:04:00,645 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-16 09:04:00,647 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-16 09:04:00,650 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-16 09:04:00,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-16 09:04:00,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-16 09:04:00,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,655 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224a70b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00, skipping insertion in model container [2021-12-16 09:04:00,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,660 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-16 09:04:00,671 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-16 09:04:00,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782] [2021-12-16 09:04:00,812 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:04:00,822 INFO L203 MainTranslator]: Completed pre-run [2021-12-16 09:04:00,831 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive/recHanoi03-2.c[769,782] [2021-12-16 09:04:00,832 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-16 09:04:00,839 INFO L208 MainTranslator]: Completed translation [2021-12-16 09:04:00,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00 WrapperNode [2021-12-16 09:04:00,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-16 09:04:00,840 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-16 09:04:00,841 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-16 09:04:00,841 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-16 09:04:00,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,862 INFO L137 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 26 [2021-12-16 09:04:00,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-16 09:04:00,863 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-16 09:04:00,863 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-16 09:04:00,863 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-16 09:04:00,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,869 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,869 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-16 09:04:00,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-16 09:04:00,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-16 09:04:00,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-16 09:04:00,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (1/1) ... [2021-12-16 09:04:00,880 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-16 09:04:00,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:00,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-16 09:04:00,898 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-16 09:04:00,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-16 09:04:00,933 INFO L130 BoogieDeclarations]: Found specification of procedure hanoi [2021-12-16 09:04:00,933 INFO L138 BoogieDeclarations]: Found implementation of procedure hanoi [2021-12-16 09:04:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-16 09:04:00,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-16 09:04:00,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-16 09:04:00,970 INFO L236 CfgBuilder]: Building ICFG [2021-12-16 09:04:00,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-16 09:04:01,055 INFO L277 CfgBuilder]: Performing block encoding [2021-12-16 09:04:01,059 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-16 09:04:01,059 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-16 09:04:01,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:04:01 BoogieIcfgContainer [2021-12-16 09:04:01,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-16 09:04:01,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-16 09:04:01,061 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-16 09:04:01,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-16 09:04:01,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 09:04:00" (1/3) ... [2021-12-16 09:04:01,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbd56b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:04:01, skipping insertion in model container [2021-12-16 09:04:01,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 09:04:00" (2/3) ... [2021-12-16 09:04:01,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dbd56b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 09:04:01, skipping insertion in model container [2021-12-16 09:04:01,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 09:04:01" (3/3) ... [2021-12-16 09:04:01,080 INFO L111 eAbstractionObserver]: Analyzing ICFG recHanoi03-2.c [2021-12-16 09:04:01,083 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-16 09:04:01,099 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-12-16 09:04:01,140 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-16 09:04:01,148 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-16 09:04:01,149 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-12-16 09:04:01,164 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 09:04:01,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-12-16 09:04:01,168 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:01,169 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:04:01,169 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:01,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:01,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1325924785, now seen corresponding path program 1 times [2021-12-16 09:04:01,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:01,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688803191] [2021-12-16 09:04:01,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:01,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:01,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:01,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:01,354 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688803191] [2021-12-16 09:04:01,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688803191] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:04:01,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:04:01,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:04:01,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614354723] [2021-12-16 09:04:01,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:04:01,359 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:04:01,360 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:01,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:04:01,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:04:01,385 INFO L87 Difference]: Start difference. First operand has 28 states, 18 states have (on average 1.5) internal successors, (27), 24 states have internal predecessors, (27), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:01,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:01,446 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2021-12-16 09:04:01,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-16 09:04:01,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2021-12-16 09:04:01,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:01,453 INFO L225 Difference]: With dead ends: 34 [2021-12-16 09:04:01,453 INFO L226 Difference]: Without dead ends: 21 [2021-12-16 09:04:01,455 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 09:04:01,459 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 35 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:01,459 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 54 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:04:01,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2021-12-16 09:04:01,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-12-16 09:04:01,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 13 states have (on average 1.4615384615384615) internal successors, (19), 18 states have internal predecessors, (19), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 09:04:01,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2021-12-16 09:04:01,485 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 7 [2021-12-16 09:04:01,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:01,485 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2021-12-16 09:04:01,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:01,486 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2021-12-16 09:04:01,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-12-16 09:04:01,487 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:01,487 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:04:01,487 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-16 09:04:01,488 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:01,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:01,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1846004663, now seen corresponding path program 1 times [2021-12-16 09:04:01,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:01,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964489833] [2021-12-16 09:04:01,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:01,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:01,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:01,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:01,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:01,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964489833] [2021-12-16 09:04:01,540 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964489833] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:04:01,541 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:04:01,541 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-16 09:04:01,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090531424] [2021-12-16 09:04:01,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:04:01,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-16 09:04:01,542 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:01,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-16 09:04:01,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-16 09:04:01,543 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:01,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:01,570 INFO L93 Difference]: Finished difference Result 40 states and 43 transitions. [2021-12-16 09:04:01,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:04:01,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-12-16 09:04:01,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:01,573 INFO L225 Difference]: With dead ends: 40 [2021-12-16 09:04:01,573 INFO L226 Difference]: Without dead ends: 37 [2021-12-16 09:04:01,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-16 09:04:01,574 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 28 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 67 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:01,575 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 67 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:04:01,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-12-16 09:04:01,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 31. [2021-12-16 09:04:01,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 22 states have (on average 1.4090909090909092) internal successors, (31), 26 states have internal predecessors, (31), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-12-16 09:04:01,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2021-12-16 09:04:01,581 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 8 [2021-12-16 09:04:01,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:01,586 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2021-12-16 09:04:01,587 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:01,587 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2021-12-16 09:04:01,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-12-16 09:04:01,588 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:01,588 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:04:01,588 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-16 09:04:01,588 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:01,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:01,589 INFO L85 PathProgramCache]: Analyzing trace with hash -498171083, now seen corresponding path program 1 times [2021-12-16 09:04:01,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:01,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36312934] [2021-12-16 09:04:01,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:01,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:01,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:01,630 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:01,630 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36312934] [2021-12-16 09:04:01,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36312934] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:01,631 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [842769494] [2021-12-16 09:04:01,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:01,631 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:01,631 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:01,632 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:01,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-16 09:04:01,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:01,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-16 09:04:01,663 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:01,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:01,711 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:01,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:01,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [842769494] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:01,770 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:01,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2021-12-16 09:04:01,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289508259] [2021-12-16 09:04:01,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:01,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 09:04:01,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:01,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 09:04:01,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-16 09:04:01,772 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 12 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:01,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:01,892 INFO L93 Difference]: Finished difference Result 92 states and 99 transitions. [2021-12-16 09:04:01,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-16 09:04:01,893 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-12-16 09:04:01,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:01,894 INFO L225 Difference]: With dead ends: 92 [2021-12-16 09:04:01,894 INFO L226 Difference]: Without dead ends: 91 [2021-12-16 09:04:01,895 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2021-12-16 09:04:01,896 INFO L933 BasicCegarLoop]: 18 mSDtfsCounter, 164 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:01,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [166 Valid, 145 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:04:01,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2021-12-16 09:04:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 67. [2021-12-16 09:04:01,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 56 states have internal predecessors, (76), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-16 09:04:01,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2021-12-16 09:04:01,904 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 13 [2021-12-16 09:04:01,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:01,904 INFO L470 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2021-12-16 09:04:01,904 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 8 states have internal predecessors, (20), 4 states have call successors, (4), 4 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:01,905 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2021-12-16 09:04:01,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-12-16 09:04:01,905 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:01,905 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:04:01,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-16 09:04:02,124 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:02,125 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:02,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:02,125 INFO L85 PathProgramCache]: Analyzing trace with hash -2001544150, now seen corresponding path program 1 times [2021-12-16 09:04:02,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:02,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674359306] [2021-12-16 09:04:02,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:02,126 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:02,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:02,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 09:04:02,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:02,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-12-16 09:04:02,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:02,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674359306] [2021-12-16 09:04:02,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674359306] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:04:02,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-16 09:04:02,168 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-16 09:04:02,168 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912628185] [2021-12-16 09:04:02,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:04:02,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-16 09:04:02,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:02,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-16 09:04:02,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 09:04:02,169 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 09:04:02,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:02,186 INFO L93 Difference]: Finished difference Result 104 states and 140 transitions. [2021-12-16 09:04:02,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-16 09:04:02,186 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2021-12-16 09:04:02,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:02,187 INFO L225 Difference]: With dead ends: 104 [2021-12-16 09:04:02,187 INFO L226 Difference]: Without dead ends: 93 [2021-12-16 09:04:02,188 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-16 09:04:02,188 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 3 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:02,189 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 46 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:04:02,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2021-12-16 09:04:02,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2021-12-16 09:04:02,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 75 states have (on average 1.3066666666666666) internal successors, (98), 78 states have internal predecessors, (98), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2021-12-16 09:04:02,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 113 transitions. [2021-12-16 09:04:02,196 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 113 transitions. Word has length 15 [2021-12-16 09:04:02,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:02,196 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 113 transitions. [2021-12-16 09:04:02,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-16 09:04:02,196 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 113 transitions. [2021-12-16 09:04:02,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-16 09:04:02,197 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:02,197 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1, 1] [2021-12-16 09:04:02,197 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-16 09:04:02,197 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:02,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:02,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1663195447, now seen corresponding path program 2 times [2021-12-16 09:04:02,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:02,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494552766] [2021-12-16 09:04:02,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:02,198 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:02,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:02,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494552766] [2021-12-16 09:04:02,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494552766] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:02,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1645143345] [2021-12-16 09:04:02,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 09:04:02,336 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:02,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:02,337 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:02,338 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-16 09:04:02,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 09:04:02,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:02,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-16 09:04:02,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:02,436 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:02,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:02,593 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:02,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1645143345] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:02,593 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:02,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 23 [2021-12-16 09:04:02,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175773296] [2021-12-16 09:04:02,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:02,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-16 09:04:02,594 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:02,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-16 09:04:02,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2021-12-16 09:04:02,595 INFO L87 Difference]: Start difference. First operand 93 states and 113 transitions. Second operand has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 14 states have internal predecessors, (44), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:02,896 INFO L93 Difference]: Finished difference Result 248 states and 263 transitions. [2021-12-16 09:04:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-12-16 09:04:02,896 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 14 states have internal predecessors, (44), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-12-16 09:04:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:02,898 INFO L225 Difference]: With dead ends: 248 [2021-12-16 09:04:02,898 INFO L226 Difference]: Without dead ends: 247 [2021-12-16 09:04:02,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=515, Invalid=1207, Unknown=0, NotChecked=0, Total=1722 [2021-12-16 09:04:02,899 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 529 mSDsluCounter, 262 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:02,900 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [531 Valid, 285 Invalid, 291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:04:02,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2021-12-16 09:04:02,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 207. [2021-12-16 09:04:02,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 174 states have internal predecessors, (224), 12 states have call successors, (12), 11 states have call predecessors, (12), 19 states have return successors, (21), 21 states have call predecessors, (21), 11 states have call successors, (21) [2021-12-16 09:04:02,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 257 transitions. [2021-12-16 09:04:02,911 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 257 transitions. Word has length 28 [2021-12-16 09:04:02,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:02,912 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 257 transitions. [2021-12-16 09:04:02,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 2.0952380952380953) internal successors, (44), 14 states have internal predecessors, (44), 10 states have call successors, (10), 10 states have call predecessors, (10), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:02,912 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 257 transitions. [2021-12-16 09:04:02,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-12-16 09:04:02,913 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:02,913 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:04:02,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:03,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:03,130 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:03,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:03,131 INFO L85 PathProgramCache]: Analyzing trace with hash 907320634, now seen corresponding path program 1 times [2021-12-16 09:04:03,131 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:03,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288787854] [2021-12-16 09:04:03,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:03,131 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 09:04:03,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:03,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:03,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:03,203 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-16 09:04:03,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:03,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288787854] [2021-12-16 09:04:03,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288787854] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:03,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1872987517] [2021-12-16 09:04:03,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:03,204 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:03,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:03,205 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:03,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-16 09:04:03,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:03,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-16 09:04:03,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-16 09:04:03,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:03,379 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-16 09:04:03,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1872987517] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:03,379 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:03,379 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2021-12-16 09:04:03,379 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560204582] [2021-12-16 09:04:03,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:03,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-12-16 09:04:03,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:03,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-12-16 09:04:03,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-16 09:04:03,385 INFO L87 Difference]: Start difference. First operand 207 states and 257 transitions. Second operand has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 09:04:03,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:03,423 INFO L93 Difference]: Finished difference Result 400 states and 549 transitions. [2021-12-16 09:04:03,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-12-16 09:04:03,423 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) Word has length 27 [2021-12-16 09:04:03,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:03,425 INFO L225 Difference]: With dead ends: 400 [2021-12-16 09:04:03,425 INFO L226 Difference]: Without dead ends: 398 [2021-12-16 09:04:03,426 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2021-12-16 09:04:03,426 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 14 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:03,426 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 92 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:04:03,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-12-16 09:04:03,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 377. [2021-12-16 09:04:03,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 315 states have (on average 1.253968253968254) internal successors, (395), 314 states have internal predecessors, (395), 12 states have call successors, (12), 11 states have call predecessors, (12), 46 states have return successors, (51), 51 states have call predecessors, (51), 11 states have call successors, (51) [2021-12-16 09:04:03,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 458 transitions. [2021-12-16 09:04:03,439 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 458 transitions. Word has length 27 [2021-12-16 09:04:03,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:03,439 INFO L470 AbstractCegarLoop]: Abstraction has 377 states and 458 transitions. [2021-12-16 09:04:03,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.090909090909091) internal successors, (34), 12 states have internal predecessors, (34), 1 states have call successors, (2), 1 states have call predecessors, (2), 5 states have return successors, (5), 5 states have call predecessors, (5), 1 states have call successors, (5) [2021-12-16 09:04:03,439 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 458 transitions. [2021-12-16 09:04:03,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-12-16 09:04:03,440 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:03,440 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-16 09:04:03,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:03,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:03,652 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting hanoiErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:03,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1937831374, now seen corresponding path program 1 times [2021-12-16 09:04:03,652 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:03,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466579863] [2021-12-16 09:04:03,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:03,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:03,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:03,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 09:04:03,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:03,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:03,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:03,699 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-16 09:04:03,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:03,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466579863] [2021-12-16 09:04:03,699 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466579863] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:03,699 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1957046189] [2021-12-16 09:04:03,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:03,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:03,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:03,701 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:03,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-16 09:04:03,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:03,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2021-12-16 09:04:03,737 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:03,785 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-12-16 09:04:03,785 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-16 09:04:03,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1957046189] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-16 09:04:03,785 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-16 09:04:03,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2021-12-16 09:04:03,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393387808] [2021-12-16 09:04:03,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-16 09:04:03,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-16 09:04:03,786 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:03,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-16 09:04:03,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-16 09:04:03,787 INFO L87 Difference]: Start difference. First operand 377 states and 458 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 09:04:03,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:03,812 INFO L93 Difference]: Finished difference Result 377 states and 458 transitions. [2021-12-16 09:04:03,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-16 09:04:03,812 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2021-12-16 09:04:03,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:03,814 INFO L225 Difference]: With dead ends: 377 [2021-12-16 09:04:03,814 INFO L226 Difference]: Without dead ends: 333 [2021-12-16 09:04:03,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-12-16 09:04:03,814 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 3 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:03,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3 Valid, 54 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:04:03,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-12-16 09:04:03,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2021-12-16 09:04:03,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 279 states have (on average 1.060931899641577) internal successors, (296), 276 states have internal predecessors, (296), 12 states have call successors, (12), 11 states have call predecessors, (12), 40 states have return successors, (45), 45 states have call predecessors, (45), 11 states have call successors, (45) [2021-12-16 09:04:03,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 353 transitions. [2021-12-16 09:04:03,823 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 353 transitions. Word has length 28 [2021-12-16 09:04:03,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:03,823 INFO L470 AbstractCegarLoop]: Abstraction has 333 states and 353 transitions. [2021-12-16 09:04:03,823 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-12-16 09:04:03,823 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 353 transitions. [2021-12-16 09:04:03,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-16 09:04:03,824 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:03,824 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1, 1] [2021-12-16 09:04:03,841 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:04,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:04,028 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:04,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:04,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1017748105, now seen corresponding path program 3 times [2021-12-16 09:04:04,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:04,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776769422] [2021-12-16 09:04:04,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:04,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:04,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:04,273 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:04,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:04,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776769422] [2021-12-16 09:04:04,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776769422] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:04,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695980867] [2021-12-16 09:04:04,273 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 09:04:04,274 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:04,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:04,275 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:04,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-16 09:04:04,309 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-16 09:04:04,309 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:04,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 24 conjunts are in the unsatisfiable core [2021-12-16 09:04:04,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:04,435 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:04,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:04,889 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:04,890 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695980867] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:04,890 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:04,890 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 47 [2021-12-16 09:04:04,890 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87307044] [2021-12-16 09:04:04,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:04,891 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-16 09:04:04,891 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:04,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-16 09:04:04,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=556, Invalid=1700, Unknown=0, NotChecked=0, Total=2256 [2021-12-16 09:04:04,892 INFO L87 Difference]: Start difference. First operand 333 states and 353 transitions. Second operand has 48 states, 45 states have (on average 2.0444444444444443) internal successors, (92), 26 states have internal predecessors, (92), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:05,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:05,667 INFO L93 Difference]: Finished difference Result 800 states and 833 transitions. [2021-12-16 09:04:05,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2021-12-16 09:04:05,667 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 45 states have (on average 2.0444444444444443) internal successors, (92), 26 states have internal predecessors, (92), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-12-16 09:04:05,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:05,670 INFO L225 Difference]: With dead ends: 800 [2021-12-16 09:04:05,670 INFO L226 Difference]: Without dead ends: 799 [2021-12-16 09:04:05,672 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1598 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=2204, Invalid=5278, Unknown=0, NotChecked=0, Total=7482 [2021-12-16 09:04:05,673 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 1049 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 407 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1051 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 407 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:05,673 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1051 Valid, 437 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 407 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-16 09:04:05,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2021-12-16 09:04:05,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 777. [2021-12-16 09:04:05,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 777 states, 651 states have (on average 1.0629800307219661) internal successors, (692), 648 states have internal predecessors, (692), 24 states have call successors, (24), 23 states have call predecessors, (24), 100 states have return successors, (105), 105 states have call predecessors, (105), 23 states have call successors, (105) [2021-12-16 09:04:05,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 777 states to 777 states and 821 transitions. [2021-12-16 09:04:05,688 INFO L78 Accepts]: Start accepts. Automaton has 777 states and 821 transitions. Word has length 58 [2021-12-16 09:04:05,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:05,688 INFO L470 AbstractCegarLoop]: Abstraction has 777 states and 821 transitions. [2021-12-16 09:04:05,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 45 states have (on average 2.0444444444444443) internal successors, (92), 26 states have internal predecessors, (92), 22 states have call successors, (22), 22 states have call predecessors, (22), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:05,689 INFO L276 IsEmpty]: Start isEmpty. Operand 777 states and 821 transitions. [2021-12-16 09:04:05,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-16 09:04:05,690 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:05,691 INFO L514 BasicCegarLoop]: trace histogram [6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2021-12-16 09:04:05,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:05,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:05,908 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:05,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:05,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1496867286, now seen corresponding path program 2 times [2021-12-16 09:04:05,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:05,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87013761] [2021-12-16 09:04:05,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:05,908 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:05,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 09:04:05,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:05,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:06,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:06,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:06,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:06,037 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-16 09:04:06,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:06,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87013761] [2021-12-16 09:04:06,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87013761] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:06,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [516758383] [2021-12-16 09:04:06,038 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-16 09:04:06,038 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:06,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:06,039 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:06,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-16 09:04:06,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-16 09:04:06,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:06,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 11 conjunts are in the unsatisfiable core [2021-12-16 09:04:06,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:06,189 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-16 09:04:06,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:06,629 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 58 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-16 09:04:06,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [516758383] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:06,630 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:06,630 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2021-12-16 09:04:06,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606139571] [2021-12-16 09:04:06,630 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:06,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-16 09:04:06,631 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:06,631 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-16 09:04:06,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-12-16 09:04:06,632 INFO L87 Difference]: Start difference. First operand 777 states and 821 transitions. Second operand has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-16 09:04:06,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:06,692 INFO L93 Difference]: Finished difference Result 1714 states and 1895 transitions. [2021-12-16 09:04:06,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-12-16 09:04:06,693 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) Word has length 63 [2021-12-16 09:04:06,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:06,697 INFO L225 Difference]: With dead ends: 1714 [2021-12-16 09:04:06,697 INFO L226 Difference]: Without dead ends: 1416 [2021-12-16 09:04:06,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 119 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2021-12-16 09:04:06,699 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:06,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 97 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-16 09:04:06,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2021-12-16 09:04:06,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1416. [2021-12-16 09:04:06,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1203 states have (on average 1.029093931837074) internal successors, (1238), 1194 states have internal predecessors, (1238), 24 states have call successors, (24), 23 states have call predecessors, (24), 187 states have return successors, (198), 198 states have call predecessors, (198), 23 states have call successors, (198) [2021-12-16 09:04:06,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1460 transitions. [2021-12-16 09:04:06,729 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1460 transitions. Word has length 63 [2021-12-16 09:04:06,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:06,729 INFO L470 AbstractCegarLoop]: Abstraction has 1416 states and 1460 transitions. [2021-12-16 09:04:06,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 3.0434782608695654) internal successors, (70), 24 states have internal predecessors, (70), 1 states have call successors, (2), 1 states have call predecessors, (2), 11 states have return successors, (11), 11 states have call predecessors, (11), 1 states have call successors, (11) [2021-12-16 09:04:06,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1460 transitions. [2021-12-16 09:04:06,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2021-12-16 09:04:06,732 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:06,732 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1, 1] [2021-12-16 09:04:06,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:06,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:06,948 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:06,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:06,949 INFO L85 PathProgramCache]: Analyzing trace with hash 255962615, now seen corresponding path program 4 times [2021-12-16 09:04:06,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:06,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430102976] [2021-12-16 09:04:06,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:06,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:07,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:07,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:07,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430102976] [2021-12-16 09:04:07,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430102976] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:07,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [243485504] [2021-12-16 09:04:07,614 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 09:04:07,614 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:07,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:07,615 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:07,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-16 09:04:07,671 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 09:04:07,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:07,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 48 conjunts are in the unsatisfiable core [2021-12-16 09:04:07,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:07,874 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:07,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:09,435 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:09,435 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [243485504] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:09,436 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:09,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 95 [2021-12-16 09:04:09,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973564250] [2021-12-16 09:04:09,436 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:09,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2021-12-16 09:04:09,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:09,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2021-12-16 09:04:09,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2260, Invalid=6860, Unknown=0, NotChecked=0, Total=9120 [2021-12-16 09:04:09,439 INFO L87 Difference]: Start difference. First operand 1416 states and 1460 transitions. Second operand has 96 states, 93 states have (on average 2.021505376344086) internal successors, (188), 50 states have internal predecessors, (188), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:12,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:12,222 INFO L93 Difference]: Finished difference Result 3359 states and 3428 transitions. [2021-12-16 09:04:12,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2021-12-16 09:04:12,223 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 93 states have (on average 2.021505376344086) internal successors, (188), 50 states have internal predecessors, (188), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2021-12-16 09:04:12,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:12,233 INFO L225 Difference]: With dead ends: 3359 [2021-12-16 09:04:12,233 INFO L226 Difference]: Without dead ends: 3358 [2021-12-16 09:04:12,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 363 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7136 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=9119, Invalid=22033, Unknown=0, NotChecked=0, Total=31152 [2021-12-16 09:04:12,240 INFO L933 BasicCegarLoop]: 71 mSDtfsCounter, 3331 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 926 mSolverCounterSat, 771 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3333 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 771 IncrementalHoareTripleChecker+Valid, 926 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:12,241 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3333 Valid, 1063 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [771 Valid, 926 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-12-16 09:04:12,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3358 states. [2021-12-16 09:04:12,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3358 to 3312. [2021-12-16 09:04:12,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3312 states, 2811 states have (on average 1.0295268587691213) internal successors, (2894), 2802 states have internal predecessors, (2894), 48 states have call successors, (48), 47 states have call predecessors, (48), 451 states have return successors, (462), 462 states have call predecessors, (462), 47 states have call successors, (462) [2021-12-16 09:04:12,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3312 states to 3312 states and 3404 transitions. [2021-12-16 09:04:12,293 INFO L78 Accepts]: Start accepts. Automaton has 3312 states and 3404 transitions. Word has length 118 [2021-12-16 09:04:12,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:12,294 INFO L470 AbstractCegarLoop]: Abstraction has 3312 states and 3404 transitions. [2021-12-16 09:04:12,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 93 states have (on average 2.021505376344086) internal successors, (188), 50 states have internal predecessors, (188), 46 states have call successors, (46), 46 states have call predecessors, (46), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand 3312 states and 3404 transitions. [2021-12-16 09:04:12,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2021-12-16 09:04:12,299 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:12,299 INFO L514 BasicCegarLoop]: trace histogram [12, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2021-12-16 09:04:12,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-12-16 09:04:12,532 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:12,534 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:12,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:12,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1973780778, now seen corresponding path program 3 times [2021-12-16 09:04:12,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:12,535 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6752572] [2021-12-16 09:04:12,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:12,535 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:12,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 09:04:12,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:12,888 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2021-12-16 09:04:12,888 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:12,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6752572] [2021-12-16 09:04:12,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6752572] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:12,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [937469973] [2021-12-16 09:04:12,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-16 09:04:12,889 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:12,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:12,890 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:12,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-16 09:04:12,941 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2021-12-16 09:04:12,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:12,942 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 23 conjunts are in the unsatisfiable core [2021-12-16 09:04:12,944 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:13,195 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2021-12-16 09:04:13,196 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:16,239 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 355 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2021-12-16 09:04:16,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [937469973] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:16,240 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:16,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 47 [2021-12-16 09:04:16,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205029217] [2021-12-16 09:04:16,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:16,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-12-16 09:04:16,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:16,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-12-16 09:04:16,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2021-12-16 09:04:16,242 INFO L87 Difference]: Start difference. First operand 3312 states and 3404 transitions. Second operand has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2021-12-16 09:04:16,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:16,394 INFO L93 Difference]: Finished difference Result 7201 states and 7856 transitions. [2021-12-16 09:04:16,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-12-16 09:04:16,395 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) Word has length 135 [2021-12-16 09:04:16,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:16,411 INFO L225 Difference]: With dead ends: 7201 [2021-12-16 09:04:16,411 INFO L226 Difference]: Without dead ends: 5850 [2021-12-16 09:04:16,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 257 SyntacticMatches, 10 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=599, Invalid=1657, Unknown=0, NotChecked=0, Total=2256 [2021-12-16 09:04:16,416 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 99 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:16,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 110 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-16 09:04:16,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5850 states. [2021-12-16 09:04:16,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5850 to 5850. [2021-12-16 09:04:16,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5850 states, 4995 states have (on average 1.0142142142142143) internal successors, (5066), 4974 states have internal predecessors, (5066), 48 states have call successors, (48), 47 states have call predecessors, (48), 805 states have return successors, (828), 828 states have call predecessors, (828), 47 states have call successors, (828) [2021-12-16 09:04:16,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5850 states to 5850 states and 5942 transitions. [2021-12-16 09:04:16,515 INFO L78 Accepts]: Start accepts. Automaton has 5850 states and 5942 transitions. Word has length 135 [2021-12-16 09:04:16,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:16,515 INFO L470 AbstractCegarLoop]: Abstraction has 5850 states and 5942 transitions. [2021-12-16 09:04:16,516 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 3.021276595744681) internal successors, (142), 48 states have internal predecessors, (142), 1 states have call successors, (2), 1 states have call predecessors, (2), 23 states have return successors, (23), 23 states have call predecessors, (23), 1 states have call successors, (23) [2021-12-16 09:04:16,516 INFO L276 IsEmpty]: Start isEmpty. Operand 5850 states and 5942 transitions. [2021-12-16 09:04:16,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2021-12-16 09:04:16,521 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:16,521 INFO L514 BasicCegarLoop]: trace histogram [47, 47, 47, 46, 46, 1, 1, 1, 1, 1] [2021-12-16 09:04:16,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:16,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-12-16 09:04:16,751 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:16,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:16,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1181417737, now seen corresponding path program 5 times [2021-12-16 09:04:16,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:16,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795596144] [2021-12-16 09:04:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:16,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:16,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:18,847 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:18,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:18,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795596144] [2021-12-16 09:04:18,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795596144] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:18,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162763227] [2021-12-16 09:04:18,848 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-16 09:04:18,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:18,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:18,849 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:18,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-16 09:04:19,017 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2021-12-16 09:04:19,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:19,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 452 conjuncts, 96 conjunts are in the unsatisfiable core [2021-12-16 09:04:19,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:19,449 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:19,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-16 09:04:24,795 INFO L134 CoverageAnalysis]: Checked inductivity of 5359 backedges. 0 proven. 5359 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-16 09:04:24,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162763227] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-16 09:04:24,796 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-16 09:04:24,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 96, 96] total 191 [2021-12-16 09:04:24,796 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505456455] [2021-12-16 09:04:24,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-16 09:04:24,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2021-12-16 09:04:24,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-16 09:04:24,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2021-12-16 09:04:24,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9124, Invalid=27548, Unknown=0, NotChecked=0, Total=36672 [2021-12-16 09:04:24,815 INFO L87 Difference]: Start difference. First operand 5850 states and 5942 transitions. Second operand has 192 states, 189 states have (on average 2.0105820105820107) internal successors, (380), 98 states have internal predecessors, (380), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:36,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-16 09:04:36,270 INFO L93 Difference]: Finished difference Result 13769 states and 13910 transitions. [2021-12-16 09:04:36,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 264 states. [2021-12-16 09:04:36,272 INFO L78 Accepts]: Start accepts. Automaton has has 192 states, 189 states have (on average 2.0105820105820107) internal successors, (380), 98 states have internal predecessors, (380), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 238 [2021-12-16 09:04:36,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-16 09:04:36,309 INFO L225 Difference]: With dead ends: 13769 [2021-12-16 09:04:36,309 INFO L226 Difference]: Without dead ends: 13768 [2021-12-16 09:04:36,320 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 380 SyntacticMatches, 0 SemanticMatches, 355 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30092 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=37097, Invalid=89995, Unknown=0, NotChecked=0, Total=127092 [2021-12-16 09:04:36,321 INFO L933 BasicCegarLoop]: 143 mSDtfsCounter, 7168 mSDsluCounter, 1995 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 1669 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7170 SdHoareTripleChecker+Valid, 2138 SdHoareTripleChecker+Invalid, 3559 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1669 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2021-12-16 09:04:36,321 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7170 Valid, 2138 Invalid, 3559 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1669 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2021-12-16 09:04:36,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13768 states. [2021-12-16 09:04:36,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13768 to 13674. [2021-12-16 09:04:36,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13674 states, 11667 states have (on average 1.0143138767463786) internal successors, (11834), 11646 states have internal predecessors, (11834), 96 states have call successors, (96), 95 states have call predecessors, (96), 1909 states have return successors, (1932), 1932 states have call predecessors, (1932), 95 states have call successors, (1932) [2021-12-16 09:04:36,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13674 states to 13674 states and 13862 transitions. [2021-12-16 09:04:36,530 INFO L78 Accepts]: Start accepts. Automaton has 13674 states and 13862 transitions. Word has length 238 [2021-12-16 09:04:36,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-16 09:04:36,531 INFO L470 AbstractCegarLoop]: Abstraction has 13674 states and 13862 transitions. [2021-12-16 09:04:36,540 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 189 states have (on average 2.0105820105820107) internal successors, (380), 98 states have internal predecessors, (380), 94 states have call successors, (94), 94 states have call predecessors, (94), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-16 09:04:36,541 INFO L276 IsEmpty]: Start isEmpty. Operand 13674 states and 13862 transitions. [2021-12-16 09:04:36,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2021-12-16 09:04:36,547 INFO L506 BasicCegarLoop]: Found error trace [2021-12-16 09:04:36,547 INFO L514 BasicCegarLoop]: trace histogram [24, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2021-12-16 09:04:36,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-16 09:04:36,764 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:36,765 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [hanoiErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, hanoiErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2021-12-16 09:04:36,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-16 09:04:36,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1518549206, now seen corresponding path program 4 times [2021-12-16 09:04:36,765 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-16 09:04:36,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613882466] [2021-12-16 09:04:36,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-16 09:04:36,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-16 09:04:36,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:36,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-16 09:04:36,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:36,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:36,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:37,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:37,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:38,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-16 09:04:38,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-16 09:04:38,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3016 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2021-12-16 09:04:38,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-16 09:04:38,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613882466] [2021-12-16 09:04:38,078 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613882466] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-16 09:04:38,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [612654641] [2021-12-16 09:04:38,078 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-16 09:04:38,078 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-16 09:04:38,079 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-16 09:04:38,079 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-16 09:04:38,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-16 09:04:38,207 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-16 09:04:38,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-16 09:04:38,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 47 conjunts are in the unsatisfiable core [2021-12-16 09:04:38,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-16 09:04:38,948 INFO L134 CoverageAnalysis]: Checked inductivity of 3016 backedges. 0 proven. 1705 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2021-12-16 09:04:38,949 INFO L328 TraceCheckSpWp]: Computing backward predicates...