./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e8d55036 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 --- Real Ultimate output --- This is Ultimate 0.2.2-?-e8d5503-m [2023-02-15 22:45:33,880 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-02-15 22:45:33,882 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-02-15 22:45:33,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-02-15 22:45:33,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-02-15 22:45:33,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-02-15 22:45:33,935 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-02-15 22:45:33,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-02-15 22:45:33,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-02-15 22:45:33,937 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-02-15 22:45:33,938 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-02-15 22:45:33,939 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-02-15 22:45:33,939 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-02-15 22:45:33,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-02-15 22:45:33,940 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-02-15 22:45:33,941 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-02-15 22:45:33,941 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-02-15 22:45:33,942 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-02-15 22:45:33,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-02-15 22:45:33,961 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-02-15 22:45:33,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-02-15 22:45:33,966 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-02-15 22:45:33,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-02-15 22:45:33,971 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-02-15 22:45:33,973 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-02-15 22:45:33,974 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-02-15 22:45:33,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-02-15 22:45:33,974 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-02-15 22:45:33,976 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-02-15 22:45:33,977 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-02-15 22:45:33,977 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-02-15 22:45:33,978 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-02-15 22:45:33,978 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-02-15 22:45:33,979 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-02-15 22:45:33,980 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-02-15 22:45:33,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-02-15 22:45:33,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-02-15 22:45:33,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-02-15 22:45:33,997 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-02-15 22:45:33,998 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-02-15 22:45:33,998 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-02-15 22:45:33,999 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-02-15 22:45:34,024 INFO L113 SettingsManager]: Loading preferences was successful [2023-02-15 22:45:34,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-02-15 22:45:34,028 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-02-15 22:45:34,028 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-02-15 22:45:34,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-02-15 22:45:34,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-02-15 22:45:34,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-02-15 22:45:34,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-02-15 22:45:34,030 INFO L138 SettingsManager]: * Use SBE=true [2023-02-15 22:45:34,030 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-02-15 22:45:34,031 INFO L138 SettingsManager]: * sizeof long=4 [2023-02-15 22:45:34,031 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-02-15 22:45:34,031 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-02-15 22:45:34,031 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-02-15 22:45:34,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-02-15 22:45:34,032 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-02-15 22:45:34,032 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-02-15 22:45:34,032 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-02-15 22:45:34,032 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2023-02-15 22:45:34,032 INFO L138 SettingsManager]: * sizeof long double=12 [2023-02-15 22:45:34,032 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-02-15 22:45:34,033 INFO L138 SettingsManager]: * Use constant arrays=true [2023-02-15 22:45:34,033 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-02-15 22:45:34,033 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-02-15 22:45:34,033 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-02-15 22:45:34,033 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-02-15 22:45:34,033 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:45:34,034 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-02-15 22:45:34,034 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-02-15 22:45:34,034 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-02-15 22:45:34,034 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-02-15 22:45:34,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-02-15 22:45:34,035 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-02-15 22:45:34,035 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-02-15 22:45:34,035 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-02-15 22:45:34,035 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-02-15 22:45:34,035 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-02-15 22:45:34,035 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6c91769726962c1478685c30d57ac239987d5f8a5f6832d1d60b9c031f35855 [2023-02-15 22:45:34,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-02-15 22:45:34,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-02-15 22:45:34,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-02-15 22:45:34,297 INFO L271 PluginConnector]: Initializing CDTParser... [2023-02-15 22:45:34,297 INFO L275 PluginConnector]: CDTParser initialized [2023-02-15 22:45:34,298 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-02-15 22:45:35,282 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-02-15 22:45:35,545 INFO L351 CDTParser]: Found 1 translation units. [2023-02-15 22:45:35,545 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c [2023-02-15 22:45:35,559 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9162c2e6/664eda6adb6745bc96d8ebb168bf677e/FLAG1fee8ac8c [2023-02-15 22:45:35,572 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9162c2e6/664eda6adb6745bc96d8ebb168bf677e [2023-02-15 22:45:35,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-02-15 22:45:35,577 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-02-15 22:45:35,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-02-15 22:45:35,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-02-15 22:45:35,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-02-15 22:45:35,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:35,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63efb234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35, skipping insertion in model container [2023-02-15 22:45:35,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:35,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-02-15 22:45:35,629 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-02-15 22:45:35,796 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2023-02-15 22:45:35,898 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:45:35,904 INFO L203 MainTranslator]: Completed pre-run [2023-02-15 22:45:35,916 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/soft_float_5a.c.cil.c[728,741] [2023-02-15 22:45:35,935 INFO L210 PostProcessor]: Analyzing one entry point: main [2023-02-15 22:45:35,957 INFO L208 MainTranslator]: Completed translation [2023-02-15 22:45:35,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35 WrapperNode [2023-02-15 22:45:35,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-02-15 22:45:35,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-02-15 22:45:35,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-02-15 22:45:35,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-02-15 22:45:35,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:35,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:35,987 INFO L138 Inliner]: procedures = 17, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 176 [2023-02-15 22:45:35,988 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-02-15 22:45:35,988 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-02-15 22:45:35,989 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-02-15 22:45:35,989 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-02-15 22:45:35,995 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:35,995 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:35,997 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:35,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:36,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:36,004 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:36,006 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:36,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:36,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-02-15 22:45:36,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-02-15 22:45:36,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-02-15 22:45:36,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-02-15 22:45:36,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (1/1) ... [2023-02-15 22:45:36,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-02-15 22:45:36,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:36,065 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) [2023-02-15 22:45:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-02-15 22:45:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-02-15 22:45:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2023-02-15 22:45:36,095 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2023-02-15 22:45:36,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-02-15 22:45:36,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-02-15 22:45:36,070 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 [2023-02-15 22:45:36,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-02-15 22:45:36,096 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-02-15 22:45:36,143 INFO L235 CfgBuilder]: Building ICFG [2023-02-15 22:45:36,144 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-02-15 22:45:36,506 INFO L276 CfgBuilder]: Performing block encoding [2023-02-15 22:45:36,511 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-02-15 22:45:36,512 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2023-02-15 22:45:36,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:36 BoogieIcfgContainer [2023-02-15 22:45:36,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-02-15 22:45:36,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-02-15 22:45:36,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-02-15 22:45:36,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-02-15 22:45:36,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.02 10:45:35" (1/3) ... [2023-02-15 22:45:36,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7181ae15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:45:36, skipping insertion in model container [2023-02-15 22:45:36,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.02 10:45:35" (2/3) ... [2023-02-15 22:45:36,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7181ae15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.02 10:45:36, skipping insertion in model container [2023-02-15 22:45:36,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.02 10:45:36" (3/3) ... [2023-02-15 22:45:36,520 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_5a.c.cil.c [2023-02-15 22:45:36,531 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-02-15 22:45:36,532 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-02-15 22:45:36,572 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-02-15 22:45:36,577 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@67f730c5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-02-15 22:45:36,578 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2023-02-15 22:45:36,581 INFO L276 IsEmpty]: Start isEmpty. Operand has 106 states, 82 states have (on average 1.670731707317073) internal successors, (137), 99 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-02-15 22:45:36,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-02-15 22:45:36,587 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:36,588 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:36,589 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:36,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:36,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1819356335, now seen corresponding path program 1 times [2023-02-15 22:45:36,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:36,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801903886] [2023-02-15 22:45:36,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:36,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:36,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:36,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:36,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:36,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801903886] [2023-02-15 22:45:36,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801903886] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:36,744 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:36,744 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:45:36,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225616372] [2023-02-15 22:45:36,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:36,749 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:36,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:36,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:36,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:36,770 INFO L87 Difference]: Start difference. First operand has 106 states, 82 states have (on average 1.670731707317073) internal successors, (137), 99 states have internal predecessors, (137), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:45:36,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:36,858 INFO L93 Difference]: Finished difference Result 257 states and 376 transitions. [2023-02-15 22:45:36,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:36,860 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-02-15 22:45:36,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:36,866 INFO L225 Difference]: With dead ends: 257 [2023-02-15 22:45:36,866 INFO L226 Difference]: Without dead ends: 130 [2023-02-15 22:45:36,869 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:36,871 INFO L413 NwaCegarLoop]: 124 mSDtfsCounter, 83 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:36,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 370 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:36,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2023-02-15 22:45:36,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 120. [2023-02-15 22:45:36,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 100 states have (on average 1.52) internal successors, (152), 113 states have internal predecessors, (152), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:36,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 160 transitions. [2023-02-15 22:45:36,905 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 160 transitions. Word has length 9 [2023-02-15 22:45:36,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:36,906 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 160 transitions. [2023-02-15 22:45:36,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-02-15 22:45:36,906 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 160 transitions. [2023-02-15 22:45:36,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-02-15 22:45:36,907 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:36,907 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:36,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-02-15 22:45:36,908 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:36,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:36,909 INFO L85 PathProgramCache]: Analyzing trace with hash -179612527, now seen corresponding path program 1 times [2023-02-15 22:45:36,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:36,909 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034392718] [2023-02-15 22:45:36,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:36,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:36,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:37,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:37,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034392718] [2023-02-15 22:45:37,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034392718] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:37,003 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:37,003 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:37,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60038564] [2023-02-15 22:45:37,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:37,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:37,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:37,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:37,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:37,006 INFO L87 Difference]: Start difference. First operand 120 states and 160 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-02-15 22:45:37,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:37,150 INFO L93 Difference]: Finished difference Result 265 states and 354 transitions. [2023-02-15 22:45:37,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:37,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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 14 [2023-02-15 22:45:37,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:37,154 INFO L225 Difference]: With dead ends: 265 [2023-02-15 22:45:37,155 INFO L226 Difference]: Without dead ends: 148 [2023-02-15 22:45:37,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-02-15 22:45:37,158 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 128 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:37,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 343 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:37,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-02-15 22:45:37,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 129. [2023-02-15 22:45:37,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.5045871559633028) internal successors, (164), 122 states have internal predecessors, (164), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:37,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 172 transitions. [2023-02-15 22:45:37,177 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 172 transitions. Word has length 14 [2023-02-15 22:45:37,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:37,178 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 172 transitions. [2023-02-15 22:45:37,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 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) [2023-02-15 22:45:37,179 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 172 transitions. [2023-02-15 22:45:37,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-02-15 22:45:37,180 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:37,180 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:37,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-02-15 22:45:37,184 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:37,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:37,186 INFO L85 PathProgramCache]: Analyzing trace with hash -1273020929, now seen corresponding path program 1 times [2023-02-15 22:45:37,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:37,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140222393] [2023-02-15 22:45:37,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:37,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:37,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:37,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:37,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140222393] [2023-02-15 22:45:37,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140222393] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:37,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:37,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:37,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395880707] [2023-02-15 22:45:37,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:37,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:37,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:37,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:37,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:37,275 INFO L87 Difference]: Start difference. First operand 129 states and 172 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-02-15 22:45:37,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:37,377 INFO L93 Difference]: Finished difference Result 156 states and 201 transitions. [2023-02-15 22:45:37,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:37,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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 15 [2023-02-15 22:45:37,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:37,380 INFO L225 Difference]: With dead ends: 156 [2023-02-15 22:45:37,380 INFO L226 Difference]: Without dead ends: 154 [2023-02-15 22:45:37,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-02-15 22:45:37,382 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 112 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 355 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:37,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 355 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:37,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-02-15 22:45:37,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 129. [2023-02-15 22:45:37,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 109 states have (on average 1.4862385321100917) internal successors, (162), 122 states have internal predecessors, (162), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:37,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 170 transitions. [2023-02-15 22:45:37,397 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 170 transitions. Word has length 15 [2023-02-15 22:45:37,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:37,397 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 170 transitions. [2023-02-15 22:45:37,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 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) [2023-02-15 22:45:37,398 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 170 transitions. [2023-02-15 22:45:37,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-02-15 22:45:37,399 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:37,399 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:37,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-02-15 22:45:37,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:37,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:37,404 INFO L85 PathProgramCache]: Analyzing trace with hash 550260128, now seen corresponding path program 1 times [2023-02-15 22:45:37,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:37,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444394228] [2023-02-15 22:45:37,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:37,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:37,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:37,429 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-02-15 22:45:37,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:37,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444394228] [2023-02-15 22:45:37,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444394228] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:37,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:37,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-02-15 22:45:37,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187980905] [2023-02-15 22:45:37,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:37,431 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-02-15 22:45:37,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:37,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-02-15 22:45:37,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:45:37,432 INFO L87 Difference]: Start difference. First operand 129 states and 170 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-02-15 22:45:37,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:37,467 INFO L93 Difference]: Finished difference Result 137 states and 180 transitions. [2023-02-15 22:45:37,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-02-15 22:45:37,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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 16 [2023-02-15 22:45:37,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:37,468 INFO L225 Difference]: With dead ends: 137 [2023-02-15 22:45:37,468 INFO L226 Difference]: Without dead ends: 136 [2023-02-15 22:45:37,468 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-02-15 22:45:37,469 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 4 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:37,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 188 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:37,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2023-02-15 22:45:37,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 126. [2023-02-15 22:45:37,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 107 states have (on average 1.4766355140186915) internal successors, (158), 119 states have internal predecessors, (158), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:37,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 166 transitions. [2023-02-15 22:45:37,477 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 166 transitions. Word has length 16 [2023-02-15 22:45:37,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:37,478 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 166 transitions. [2023-02-15 22:45:37,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 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) [2023-02-15 22:45:37,478 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 166 transitions. [2023-02-15 22:45:37,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-02-15 22:45:37,479 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:37,479 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:37,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-02-15 22:45:37,479 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:37,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:37,480 INFO L85 PathProgramCache]: Analyzing trace with hash -119643288, now seen corresponding path program 1 times [2023-02-15 22:45:37,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:37,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735956278] [2023-02-15 22:45:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:37,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:37,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:37,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:37,523 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735956278] [2023-02-15 22:45:37,523 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735956278] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:37,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966333696] [2023-02-15 22:45:37,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:37,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:37,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:37,526 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) [2023-02-15 22:45:37,528 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-02-15 22:45:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:37,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 3 conjunts are in the unsatisfiable core [2023-02-15 22:45:37,567 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:37,601 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-02-15 22:45:37,601 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:37,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966333696] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:37,602 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:37,602 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2023-02-15 22:45:37,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665414805] [2023-02-15 22:45:37,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:37,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:37,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:37,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:37,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 22:45:37,603 INFO L87 Difference]: Start difference. First operand 126 states and 166 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-02-15 22:45:37,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:37,634 INFO L93 Difference]: Finished difference Result 155 states and 207 transitions. [2023-02-15 22:45:37,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:37,634 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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 17 [2023-02-15 22:45:37,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:37,635 INFO L225 Difference]: With dead ends: 155 [2023-02-15 22:45:37,635 INFO L226 Difference]: Without dead ends: 154 [2023-02-15 22:45:37,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-02-15 22:45:37,636 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 16 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:37,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 299 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:37,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2023-02-15 22:45:37,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 128. [2023-02-15 22:45:37,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 109 states have (on average 1.4770642201834863) internal successors, (161), 121 states have internal predecessors, (161), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:37,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 169 transitions. [2023-02-15 22:45:37,643 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 169 transitions. Word has length 17 [2023-02-15 22:45:37,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:37,644 INFO L495 AbstractCegarLoop]: Abstraction has 128 states and 169 transitions. [2023-02-15 22:45:37,644 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 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) [2023-02-15 22:45:37,644 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 169 transitions. [2023-02-15 22:45:37,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-02-15 22:45:37,645 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:37,645 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:37,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-02-15 22:45:37,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:37,850 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:37,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:37,850 INFO L85 PathProgramCache]: Analyzing trace with hash -171865727, now seen corresponding path program 1 times [2023-02-15 22:45:37,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:37,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242313666] [2023-02-15 22:45:37,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:37,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:37,879 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-02-15 22:45:37,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:37,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242313666] [2023-02-15 22:45:37,879 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242313666] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:37,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:37,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-02-15 22:45:37,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761754235] [2023-02-15 22:45:37,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:37,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:45:37,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:37,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:45:37,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:37,881 INFO L87 Difference]: Start difference. First operand 128 states and 169 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-02-15 22:45:37,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:37,910 INFO L93 Difference]: Finished difference Result 161 states and 215 transitions. [2023-02-15 22:45:37,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:45:37,910 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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 19 [2023-02-15 22:45:37,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:37,911 INFO L225 Difference]: With dead ends: 161 [2023-02-15 22:45:37,911 INFO L226 Difference]: Without dead ends: 159 [2023-02-15 22:45:37,912 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:45:37,912 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 22 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:37,913 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 201 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:37,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2023-02-15 22:45:37,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 130. [2023-02-15 22:45:37,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 112 states have (on average 1.4553571428571428) internal successors, (163), 123 states have internal predecessors, (163), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:37,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 171 transitions. [2023-02-15 22:45:37,919 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 171 transitions. Word has length 19 [2023-02-15 22:45:37,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:37,919 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 171 transitions. [2023-02-15 22:45:37,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 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) [2023-02-15 22:45:37,920 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 171 transitions. [2023-02-15 22:45:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 22:45:37,920 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:37,920 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:37,921 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-02-15 22:45:37,921 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:37,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:37,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1906214428, now seen corresponding path program 1 times [2023-02-15 22:45:37,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:37,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560078567] [2023-02-15 22:45:37,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:37,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:37,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:37,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:37,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:37,966 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 22:45:37,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:37,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560078567] [2023-02-15 22:45:37,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560078567] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:37,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:37,967 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:37,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013292206] [2023-02-15 22:45:37,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:37,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:37,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:37,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:37,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:37,969 INFO L87 Difference]: Start difference. First operand 130 states and 171 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 22:45:38,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:38,031 INFO L93 Difference]: Finished difference Result 193 states and 257 transitions. [2023-02-15 22:45:38,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:38,031 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-02-15 22:45:38,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:38,032 INFO L225 Difference]: With dead ends: 193 [2023-02-15 22:45:38,032 INFO L226 Difference]: Without dead ends: 191 [2023-02-15 22:45:38,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:45:38,033 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 130 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:38,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 277 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:38,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-02-15 22:45:38,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 161. [2023-02-15 22:45:38,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 142 states have (on average 1.4647887323943662) internal successors, (208), 153 states have internal predecessors, (208), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:38,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 216 transitions. [2023-02-15 22:45:38,041 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 216 transitions. Word has length 24 [2023-02-15 22:45:38,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:38,041 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 216 transitions. [2023-02-15 22:45:38,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 22:45:38,042 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 216 transitions. [2023-02-15 22:45:38,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-02-15 22:45:38,042 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:38,042 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:38,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-02-15 22:45:38,043 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:38,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:38,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1934841784, now seen corresponding path program 1 times [2023-02-15 22:45:38,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:38,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452381452] [2023-02-15 22:45:38,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:38,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:38,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:38,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-02-15 22:45:38,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:38,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452381452] [2023-02-15 22:45:38,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452381452] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:38,082 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:38,082 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:38,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956336417] [2023-02-15 22:45:38,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:38,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:38,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:38,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:38,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:38,083 INFO L87 Difference]: Start difference. First operand 161 states and 216 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 22:45:38,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:38,135 INFO L93 Difference]: Finished difference Result 185 states and 245 transitions. [2023-02-15 22:45:38,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:38,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24 [2023-02-15 22:45:38,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:38,137 INFO L225 Difference]: With dead ends: 185 [2023-02-15 22:45:38,137 INFO L226 Difference]: Without dead ends: 183 [2023-02-15 22:45:38,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:45:38,138 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 131 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:38,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 277 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:38,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2023-02-15 22:45:38,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 154. [2023-02-15 22:45:38,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 135 states have (on average 1.451851851851852) internal successors, (196), 146 states have internal predecessors, (196), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:38,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 204 transitions. [2023-02-15 22:45:38,144 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 204 transitions. Word has length 24 [2023-02-15 22:45:38,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:38,144 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 204 transitions. [2023-02-15 22:45:38,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-02-15 22:45:38,145 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 204 transitions. [2023-02-15 22:45:38,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 22:45:38,146 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:38,147 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:38,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-02-15 22:45:38,147 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:38,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:38,163 INFO L85 PathProgramCache]: Analyzing trace with hash -735396699, now seen corresponding path program 1 times [2023-02-15 22:45:38,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:38,163 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196304860] [2023-02-15 22:45:38,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:38,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:38,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:38,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 22:45:38,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,242 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 22:45:38,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:38,243 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196304860] [2023-02-15 22:45:38,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196304860] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:38,243 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:38,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:38,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587583707] [2023-02-15 22:45:38,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:38,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:38,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:38,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:38,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:38,245 INFO L87 Difference]: Start difference. First operand 154 states and 204 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 22:45:38,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:38,300 INFO L93 Difference]: Finished difference Result 178 states and 236 transitions. [2023-02-15 22:45:38,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:38,301 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-02-15 22:45:38,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:38,302 INFO L225 Difference]: With dead ends: 178 [2023-02-15 22:45:38,302 INFO L226 Difference]: Without dead ends: 176 [2023-02-15 22:45:38,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:45:38,305 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 128 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:38,305 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 270 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:38,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2023-02-15 22:45:38,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 148. [2023-02-15 22:45:38,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 131 states have (on average 1.4274809160305344) internal successors, (187), 140 states have internal predecessors, (187), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:38,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2023-02-15 22:45:38,315 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 31 [2023-02-15 22:45:38,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:38,315 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2023-02-15 22:45:38,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 22:45:38,315 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2023-02-15 22:45:38,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-02-15 22:45:38,318 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:38,318 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:38,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-02-15 22:45:38,319 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:38,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:38,319 INFO L85 PathProgramCache]: Analyzing trace with hash -764024055, now seen corresponding path program 1 times [2023-02-15 22:45:38,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:38,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648767470] [2023-02-15 22:45:38,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:38,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:38,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:38,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 22:45:38,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,387 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 22:45:38,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:38,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648767470] [2023-02-15 22:45:38,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648767470] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:38,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:38,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:45:38,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723151557] [2023-02-15 22:45:38,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:38,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-02-15 22:45:38,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:38,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-02-15 22:45:38,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-02-15 22:45:38,390 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 22:45:38,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:38,446 INFO L93 Difference]: Finished difference Result 170 states and 224 transitions. [2023-02-15 22:45:38,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-02-15 22:45:38,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2023-02-15 22:45:38,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:38,448 INFO L225 Difference]: With dead ends: 170 [2023-02-15 22:45:38,448 INFO L226 Difference]: Without dead ends: 168 [2023-02-15 22:45:38,448 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-02-15 22:45:38,449 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 129 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:38,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 268 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:38,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2023-02-15 22:45:38,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 139. [2023-02-15 22:45:38,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 124 states have (on average 1.4112903225806452) internal successors, (175), 131 states have internal predecessors, (175), 4 states have call successors, (4), 3 states have call predecessors, (4), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:38,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 183 transitions. [2023-02-15 22:45:38,456 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 183 transitions. Word has length 31 [2023-02-15 22:45:38,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:38,456 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 183 transitions. [2023-02-15 22:45:38,456 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2023-02-15 22:45:38,457 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 183 transitions. [2023-02-15 22:45:38,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-02-15 22:45:38,457 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:38,457 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:38,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-02-15 22:45:38,458 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:38,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:38,459 INFO L85 PathProgramCache]: Analyzing trace with hash 1822749775, now seen corresponding path program 1 times [2023-02-15 22:45:38,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:38,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521146405] [2023-02-15 22:45:38,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:38,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:38,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-02-15 22:45:38,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2023-02-15 22:45:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,541 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-02-15 22:45:38,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:38,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521146405] [2023-02-15 22:45:38,542 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521146405] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:38,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842326534] [2023-02-15 22:45:38,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:38,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:38,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:38,557 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) [2023-02-15 22:45:38,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-02-15 22:45:38,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:38,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 22 conjunts are in the unsatisfiable core [2023-02-15 22:45:38,627 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:38,686 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 3 proven. 15 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-02-15 22:45:38,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:38,801 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:38,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842326534] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:38,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:38,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 10, 8] total 18 [2023-02-15 22:45:38,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140255900] [2023-02-15 22:45:38,802 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:38,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-02-15 22:45:38,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:38,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-02-15 22:45:38,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2023-02-15 22:45:38,804 INFO L87 Difference]: Start difference. First operand 139 states and 183 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-02-15 22:45:39,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:39,104 INFO L93 Difference]: Finished difference Result 454 states and 581 transitions. [2023-02-15 22:45:39,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2023-02-15 22:45:39,104 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) Word has length 37 [2023-02-15 22:45:39,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:39,105 INFO L225 Difference]: With dead ends: 454 [2023-02-15 22:45:39,105 INFO L226 Difference]: Without dead ends: 275 [2023-02-15 22:45:39,106 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=128, Invalid=684, Unknown=0, NotChecked=0, Total=812 [2023-02-15 22:45:39,107 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 274 mSDsluCounter, 863 mSDsCounter, 0 mSdLazyCounter, 378 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 378 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:39,107 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 937 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 378 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:45:39,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-02-15 22:45:39,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 140. [2023-02-15 22:45:39,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.3629032258064515) internal successors, (169), 131 states have internal predecessors, (169), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:39,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 177 transitions. [2023-02-15 22:45:39,115 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 177 transitions. Word has length 37 [2023-02-15 22:45:39,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:39,115 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 177 transitions. [2023-02-15 22:45:39,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 16 states have internal predecessors, (44), 4 states have call successors, (7), 1 states have call predecessors, (7), 5 states have return successors, (10), 6 states have call predecessors, (10), 4 states have call successors, (10) [2023-02-15 22:45:39,115 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 177 transitions. [2023-02-15 22:45:39,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-02-15 22:45:39,116 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:39,116 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:39,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:39,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-02-15 22:45:39,321 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:39,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:39,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1347360979, now seen corresponding path program 1 times [2023-02-15 22:45:39,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:39,322 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690033365] [2023-02-15 22:45:39,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:39,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:39,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:39,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 22:45:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 22:45:39,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,428 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 22:45:39,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:39,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690033365] [2023-02-15 22:45:39,428 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690033365] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:39,428 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:39,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 22:45:39,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27729523] [2023-02-15 22:45:39,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:39,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 22:45:39,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:39,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 22:45:39,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 22:45:39,430 INFO L87 Difference]: Start difference. First operand 140 states and 177 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:39,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:39,509 INFO L93 Difference]: Finished difference Result 266 states and 315 transitions. [2023-02-15 22:45:39,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-02-15 22:45:39,509 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 54 [2023-02-15 22:45:39,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:39,510 INFO L225 Difference]: With dead ends: 266 [2023-02-15 22:45:39,510 INFO L226 Difference]: Without dead ends: 214 [2023-02-15 22:45:39,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-15 22:45:39,511 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 108 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:39,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 572 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:39,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2023-02-15 22:45:39,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 140. [2023-02-15 22:45:39,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 124 states have (on average 1.346774193548387) internal successors, (167), 131 states have internal predecessors, (167), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-02-15 22:45:39,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 175 transitions. [2023-02-15 22:45:39,518 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 175 transitions. Word has length 54 [2023-02-15 22:45:39,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:39,518 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 175 transitions. [2023-02-15 22:45:39,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:39,518 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 175 transitions. [2023-02-15 22:45:39,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 22:45:39,519 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:39,519 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:39,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-02-15 22:45:39,519 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:39,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:39,520 INFO L85 PathProgramCache]: Analyzing trace with hash 264007364, now seen corresponding path program 2 times [2023-02-15 22:45:39,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:39,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306384042] [2023-02-15 22:45:39,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:39,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:39,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 22:45:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 22:45:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,594 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 22:45:39,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:39,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306384042] [2023-02-15 22:45:39,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1306384042] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:39,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:39,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-02-15 22:45:39,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130268986] [2023-02-15 22:45:39,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:39,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 22:45:39,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:39,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 22:45:39,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-02-15 22:45:39,596 INFO L87 Difference]: Start difference. First operand 140 states and 175 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:39,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:39,690 INFO L93 Difference]: Finished difference Result 262 states and 313 transitions. [2023-02-15 22:45:39,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 22:45:39,690 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2023-02-15 22:45:39,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:39,691 INFO L225 Difference]: With dead ends: 262 [2023-02-15 22:45:39,691 INFO L226 Difference]: Without dead ends: 226 [2023-02-15 22:45:39,691 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2023-02-15 22:45:39,692 INFO L413 NwaCegarLoop]: 113 mSDtfsCounter, 160 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:39,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 679 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:39,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-02-15 22:45:39,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 165. [2023-02-15 22:45:39,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 148 states have (on average 1.337837837837838) internal successors, (198), 155 states have internal predecessors, (198), 4 states have call successors, (4), 4 states have call predecessors, (4), 5 states have return successors, (5), 5 states have call predecessors, (5), 4 states have call successors, (5) [2023-02-15 22:45:39,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 207 transitions. [2023-02-15 22:45:39,700 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 207 transitions. Word has length 58 [2023-02-15 22:45:39,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:39,700 INFO L495 AbstractCegarLoop]: Abstraction has 165 states and 207 transitions. [2023-02-15 22:45:39,700 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:39,700 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 207 transitions. [2023-02-15 22:45:39,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-02-15 22:45:39,701 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:39,701 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:39,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-02-15 22:45:39,701 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:39,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:39,701 INFO L85 PathProgramCache]: Analyzing trace with hash 264009286, now seen corresponding path program 1 times [2023-02-15 22:45:39,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:39,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834460852] [2023-02-15 22:45:39,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:39,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:39,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:39,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 22:45:39,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 22:45:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 4 proven. 10 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 22:45:39,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:39,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834460852] [2023-02-15 22:45:39,785 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834460852] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:39,785 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301976560] [2023-02-15 22:45:39,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:39,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:39,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:39,786 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) [2023-02-15 22:45:39,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-02-15 22:45:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:39,832 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 22:45:39,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:39,896 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2023-02-15 22:45:39,896 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:39,896 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301976560] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:39,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:39,897 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2023-02-15 22:45:39,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414066682] [2023-02-15 22:45:39,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:39,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 22:45:39,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:39,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 22:45:39,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:45:39,898 INFO L87 Difference]: Start difference. First operand 165 states and 207 transitions. Second operand has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 22:45:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:40,003 INFO L93 Difference]: Finished difference Result 306 states and 374 transitions. [2023-02-15 22:45:40,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 22:45:40,004 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2023-02-15 22:45:40,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:40,005 INFO L225 Difference]: With dead ends: 306 [2023-02-15 22:45:40,005 INFO L226 Difference]: Without dead ends: 254 [2023-02-15 22:45:40,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:45:40,005 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 166 mSDsluCounter, 518 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:40,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 599 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:40,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2023-02-15 22:45:40,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 187. [2023-02-15 22:45:40,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 168 states have (on average 1.3095238095238095) internal successors, (220), 175 states have internal predecessors, (220), 5 states have call successors, (5), 4 states have call predecessors, (5), 6 states have return successors, (8), 7 states have call predecessors, (8), 5 states have call successors, (8) [2023-02-15 22:45:40,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 233 transitions. [2023-02-15 22:45:40,013 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 233 transitions. Word has length 58 [2023-02-15 22:45:40,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:40,013 INFO L495 AbstractCegarLoop]: Abstraction has 187 states and 233 transitions. [2023-02-15 22:45:40,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.625) internal successors, (37), 7 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 22:45:40,014 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 233 transitions. [2023-02-15 22:45:40,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-02-15 22:45:40,014 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:40,014 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:40,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:40,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:40,220 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:40,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:40,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1694284065, now seen corresponding path program 1 times [2023-02-15 22:45:40,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:40,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900589195] [2023-02-15 22:45:40,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:40,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:40,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:40,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 22:45:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 22:45:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,312 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-02-15 22:45:40,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:40,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900589195] [2023-02-15 22:45:40,312 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1900589195] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:40,312 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:45:40,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-02-15 22:45:40,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920844029] [2023-02-15 22:45:40,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:40,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 22:45:40,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:40,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 22:45:40,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2023-02-15 22:45:40,314 INFO L87 Difference]: Start difference. First operand 187 states and 233 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:40,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:40,459 INFO L93 Difference]: Finished difference Result 432 states and 508 transitions. [2023-02-15 22:45:40,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 22:45:40,459 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 63 [2023-02-15 22:45:40,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:40,461 INFO L225 Difference]: With dead ends: 432 [2023-02-15 22:45:40,461 INFO L226 Difference]: Without dead ends: 398 [2023-02-15 22:45:40,461 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:45:40,462 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 357 mSDsluCounter, 528 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 357 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:40,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [357 Valid, 607 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:40,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2023-02-15 22:45:40,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 211. [2023-02-15 22:45:40,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 191 states have (on average 1.3193717277486912) internal successors, (252), 198 states have internal predecessors, (252), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 22:45:40,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 267 transitions. [2023-02-15 22:45:40,471 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 267 transitions. Word has length 63 [2023-02-15 22:45:40,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:40,472 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 267 transitions. [2023-02-15 22:45:40,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:40,472 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 267 transitions. [2023-02-15 22:45:40,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-02-15 22:45:40,472 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:40,473 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:40,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-02-15 22:45:40,473 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:40,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:40,473 INFO L85 PathProgramCache]: Analyzing trace with hash -1694282143, now seen corresponding path program 1 times [2023-02-15 22:45:40,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:40,473 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922149303] [2023-02-15 22:45:40,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:40,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:40,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:40,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:40,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-02-15 22:45:40,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2023-02-15 22:45:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,550 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 4 proven. 16 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:40,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:40,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922149303] [2023-02-15 22:45:40,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922149303] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:40,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873813496] [2023-02-15 22:45:40,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:40,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:40,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:40,577 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) [2023-02-15 22:45:40,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-02-15 22:45:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:40,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 14 conjunts are in the unsatisfiable core [2023-02-15 22:45:40,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:40,682 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2023-02-15 22:45:40,682 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:40,778 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2023-02-15 22:45:40,779 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873813496] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:40,779 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:40,779 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 6] total 14 [2023-02-15 22:45:40,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236234713] [2023-02-15 22:45:40,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:40,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 22:45:40,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:40,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 22:45:40,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:45:40,780 INFO L87 Difference]: Start difference. First operand 211 states and 267 transitions. Second operand has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-15 22:45:41,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:41,093 INFO L93 Difference]: Finished difference Result 455 states and 577 transitions. [2023-02-15 22:45:41,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-02-15 22:45:41,094 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) Word has length 63 [2023-02-15 22:45:41,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:41,095 INFO L225 Difference]: With dead ends: 455 [2023-02-15 22:45:41,095 INFO L226 Difference]: Without dead ends: 275 [2023-02-15 22:45:41,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2023-02-15 22:45:41,096 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 226 mSDsluCounter, 583 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 659 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:41,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 659 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:41,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 275 states. [2023-02-15 22:45:41,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 275 to 204. [2023-02-15 22:45:41,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 184 states have (on average 1.2880434782608696) internal successors, (237), 191 states have internal predecessors, (237), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 22:45:41,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 252 transitions. [2023-02-15 22:45:41,106 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 252 transitions. Word has length 63 [2023-02-15 22:45:41,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:41,106 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 252 transitions. [2023-02-15 22:45:41,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.928571428571429) internal successors, (69), 12 states have internal predecessors, (69), 4 states have call successors, (10), 1 states have call predecessors, (10), 4 states have return successors, (12), 6 states have call predecessors, (12), 4 states have call successors, (12) [2023-02-15 22:45:41,107 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 252 transitions. [2023-02-15 22:45:41,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-02-15 22:45:41,107 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:41,107 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:41,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:41,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-02-15 22:45:41,313 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:41,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:41,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1797395163, now seen corresponding path program 1 times [2023-02-15 22:45:41,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:41,313 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198745275] [2023-02-15 22:45:41,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:41,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:41,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:41,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:41,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:41,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:41,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2023-02-15 22:45:41,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:41,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2023-02-15 22:45:41,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:41,379 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:41,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:41,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198745275] [2023-02-15 22:45:41,379 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198745275] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:41,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218307279] [2023-02-15 22:45:41,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:41,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:41,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:41,393 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) [2023-02-15 22:45:41,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-02-15 22:45:41,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:41,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 5 conjunts are in the unsatisfiable core [2023-02-15 22:45:41,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:41,520 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 26 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 22:45:41,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:41,611 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 19 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:41,611 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218307279] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:41,611 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:41,611 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2023-02-15 22:45:41,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996107834] [2023-02-15 22:45:41,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:41,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-02-15 22:45:41,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:41,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-02-15 22:45:41,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:45:41,613 INFO L87 Difference]: Start difference. First operand 204 states and 252 transitions. Second operand has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 22:45:41,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:41,822 INFO L93 Difference]: Finished difference Result 708 states and 905 transitions. [2023-02-15 22:45:41,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-02-15 22:45:41,823 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2023-02-15 22:45:41,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:41,825 INFO L225 Difference]: With dead ends: 708 [2023-02-15 22:45:41,825 INFO L226 Difference]: Without dead ends: 532 [2023-02-15 22:45:41,825 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=148, Invalid=232, Unknown=0, NotChecked=0, Total=380 [2023-02-15 22:45:41,826 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 221 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:41,826 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 557 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:41,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 532 states. [2023-02-15 22:45:41,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 532 to 231. [2023-02-15 22:45:41,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 211 states have (on average 1.2843601895734598) internal successors, (271), 218 states have internal predecessors, (271), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 22:45:41,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 286 transitions. [2023-02-15 22:45:41,856 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 286 transitions. Word has length 66 [2023-02-15 22:45:41,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:41,856 INFO L495 AbstractCegarLoop]: Abstraction has 231 states and 286 transitions. [2023-02-15 22:45:41,857 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 7.0) internal successors, (98), 14 states have internal predecessors, (98), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 22:45:41,857 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 286 transitions. [2023-02-15 22:45:41,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-02-15 22:45:41,857 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:41,858 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:41,864 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:42,062 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-02-15 22:45:42,063 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:42,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:42,063 INFO L85 PathProgramCache]: Analyzing trace with hash -1155393431, now seen corresponding path program 1 times [2023-02-15 22:45:42,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:42,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255474510] [2023-02-15 22:45:42,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:42,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:42,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:42,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:42,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2023-02-15 22:45:42,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-02-15 22:45:42,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,169 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:42,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:42,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255474510] [2023-02-15 22:45:42,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255474510] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:42,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1341823466] [2023-02-15 22:45:42,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:42,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:42,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:42,199 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) [2023-02-15 22:45:42,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-02-15 22:45:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,248 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 22:45:42,250 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:42,291 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 32 proven. 5 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 22:45:42,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:42,370 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 4 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:42,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1341823466] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:42,371 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:42,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2023-02-15 22:45:42,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227893769] [2023-02-15 22:45:42,371 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:42,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 22:45:42,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:42,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 22:45:42,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2023-02-15 22:45:42,372 INFO L87 Difference]: Start difference. First operand 231 states and 286 transitions. Second operand has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 22:45:42,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:42,592 INFO L93 Difference]: Finished difference Result 547 states and 690 transitions. [2023-02-15 22:45:42,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-02-15 22:45:42,593 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2023-02-15 22:45:42,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:42,594 INFO L225 Difference]: With dead ends: 547 [2023-02-15 22:45:42,594 INFO L226 Difference]: Without dead ends: 357 [2023-02-15 22:45:42,595 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 143 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=186, Unknown=0, NotChecked=0, Total=306 [2023-02-15 22:45:42,595 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 168 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 218 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 218 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:42,595 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 359 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 218 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:42,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2023-02-15 22:45:42,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 224. [2023-02-15 22:45:42,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 204 states have (on average 1.2598039215686274) internal successors, (257), 211 states have internal predecessors, (257), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 22:45:42,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 272 transitions. [2023-02-15 22:45:42,607 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 272 transitions. Word has length 70 [2023-02-15 22:45:42,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:42,607 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 272 transitions. [2023-02-15 22:45:42,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.846153846153846) internal successors, (102), 13 states have internal predecessors, (102), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 22:45:42,608 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 272 transitions. [2023-02-15 22:45:42,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-02-15 22:45:42,608 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:42,608 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 6, 6, 6, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:42,628 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:42,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2023-02-15 22:45:42,813 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:42,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:42,814 INFO L85 PathProgramCache]: Analyzing trace with hash 216023387, now seen corresponding path program 2 times [2023-02-15 22:45:42,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:42,814 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064098944] [2023-02-15 22:45:42,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:42,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:42,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:42,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2023-02-15 22:45:42,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-02-15 22:45:42,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:42,955 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:42,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:42,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064098944] [2023-02-15 22:45:42,955 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064098944] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:42,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635140308] [2023-02-15 22:45:42,955 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:45:42,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:42,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:42,956 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) [2023-02-15 22:45:42,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-02-15 22:45:43,025 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:45:43,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:45:43,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 9 conjunts are in the unsatisfiable core [2023-02-15 22:45:43,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:43,101 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 26 proven. 87 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2023-02-15 22:45:43,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:43,280 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 4 proven. 97 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:43,281 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635140308] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:43,281 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:43,281 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 26 [2023-02-15 22:45:43,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316641808] [2023-02-15 22:45:43,281 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:43,281 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-02-15 22:45:43,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:43,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-02-15 22:45:43,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=420, Unknown=0, NotChecked=0, Total=650 [2023-02-15 22:45:43,283 INFO L87 Difference]: Start difference. First operand 224 states and 272 transitions. Second operand has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 22:45:43,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:43,625 INFO L93 Difference]: Finished difference Result 1080 states and 1393 transitions. [2023-02-15 22:45:43,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-02-15 22:45:43,626 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 86 [2023-02-15 22:45:43,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:43,628 INFO L225 Difference]: With dead ends: 1080 [2023-02-15 22:45:43,629 INFO L226 Difference]: Without dead ends: 904 [2023-02-15 22:45:43,629 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=488, Invalid=772, Unknown=0, NotChecked=0, Total=1260 [2023-02-15 22:45:43,630 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 621 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 299 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 621 SdHoareTripleChecker+Valid, 704 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:43,630 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [621 Valid, 704 Invalid, 335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 299 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-02-15 22:45:43,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2023-02-15 22:45:43,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 271. [2023-02-15 22:45:43,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 251 states have (on average 1.254980079681275) internal successors, (315), 258 states have internal predecessors, (315), 5 states have call successors, (5), 4 states have call predecessors, (5), 7 states have return successors, (10), 8 states have call predecessors, (10), 5 states have call successors, (10) [2023-02-15 22:45:43,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 330 transitions. [2023-02-15 22:45:43,647 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 330 transitions. Word has length 86 [2023-02-15 22:45:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:43,647 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 330 transitions. [2023-02-15 22:45:43,647 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 6.076923076923077) internal successors, (158), 26 states have internal predecessors, (158), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 22:45:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 330 transitions. [2023-02-15 22:45:43,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 22:45:43,648 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:43,648 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:43,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-02-15 22:45:43,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:43,853 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:43,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:43,853 INFO L85 PathProgramCache]: Analyzing trace with hash -584775959, now seen corresponding path program 2 times [2023-02-15 22:45:43,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:43,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848114395] [2023-02-15 22:45:43,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:43,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:43,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:43,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:43,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:44,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 22:45:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:44,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 22:45:44,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:44,055 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:44,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:44,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848114395] [2023-02-15 22:45:44,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848114395] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:44,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934587236] [2023-02-15 22:45:44,055 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:45:44,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:44,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:44,081 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) [2023-02-15 22:45:44,133 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-02-15 22:45:44,191 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:45:44,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:45:44,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 25 conjunts are in the unsatisfiable core [2023-02-15 22:45:44,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:44,539 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2023-02-15 22:45:44,539 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:44,539 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934587236] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:44,539 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:44,539 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [10] total 21 [2023-02-15 22:45:44,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941523121] [2023-02-15 22:45:44,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:44,541 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-02-15 22:45:44,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:44,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-02-15 22:45:44,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=367, Unknown=0, NotChecked=0, Total=420 [2023-02-15 22:45:44,541 INFO L87 Difference]: Start difference. First operand 271 states and 330 transitions. Second operand has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:45,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:45,122 INFO L93 Difference]: Finished difference Result 561 states and 654 transitions. [2023-02-15 22:45:45,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-02-15 22:45:45,127 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 90 [2023-02-15 22:45:45,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:45,129 INFO L225 Difference]: With dead ends: 561 [2023-02-15 22:45:45,129 INFO L226 Difference]: Without dead ends: 527 [2023-02-15 22:45:45,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=133, Invalid=923, Unknown=0, NotChecked=0, Total=1056 [2023-02-15 22:45:45,130 INFO L413 NwaCegarLoop]: 144 mSDtfsCounter, 496 mSDsluCounter, 1062 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 1206 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:45,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 1206 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:45:45,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2023-02-15 22:45:45,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 302. [2023-02-15 22:45:45,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 281 states have (on average 1.2633451957295374) internal successors, (355), 288 states have internal predecessors, (355), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 9 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 22:45:45,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 372 transitions. [2023-02-15 22:45:45,151 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 372 transitions. Word has length 90 [2023-02-15 22:45:45,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:45,151 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 372 transitions. [2023-02-15 22:45:45,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 4.25) internal successors, (51), 12 states have internal predecessors, (51), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:45,151 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 372 transitions. [2023-02-15 22:45:45,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 22:45:45,152 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:45,152 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:45,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:45,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:45,357 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:45,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:45,358 INFO L85 PathProgramCache]: Analyzing trace with hash -527519579, now seen corresponding path program 1 times [2023-02-15 22:45:45,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:45,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703147067] [2023-02-15 22:45:45,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:45,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:45,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:45,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:45,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:45,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:45,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 22:45:45,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:45,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 22:45:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:45,431 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 22:45:45,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:45,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703147067] [2023-02-15 22:45:45,431 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703147067] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:45,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433254376] [2023-02-15 22:45:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:45,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:45,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:45,432 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) [2023-02-15 22:45:45,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-02-15 22:45:45,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:45,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjunts are in the unsatisfiable core [2023-02-15 22:45:45,504 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:45,524 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 22:45:45,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:45,590 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 22:45:45,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433254376] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:45,591 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:45,591 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2023-02-15 22:45:45,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342269801] [2023-02-15 22:45:45,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:45,591 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-02-15 22:45:45,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:45,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-02-15 22:45:45,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-02-15 22:45:45,592 INFO L87 Difference]: Start difference. First operand 302 states and 372 transitions. Second operand has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 22:45:45,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:45,653 INFO L93 Difference]: Finished difference Result 480 states and 586 transitions. [2023-02-15 22:45:45,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-02-15 22:45:45,654 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 90 [2023-02-15 22:45:45,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:45,655 INFO L225 Difference]: With dead ends: 480 [2023-02-15 22:45:45,655 INFO L226 Difference]: Without dead ends: 424 [2023-02-15 22:45:45,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2023-02-15 22:45:45,656 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 232 mSDsluCounter, 517 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:45,656 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 607 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:45:45,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2023-02-15 22:45:45,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 326. [2023-02-15 22:45:45,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.2622950819672132) internal successors, (385), 309 states have internal predecessors, (385), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 22:45:45,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 402 transitions. [2023-02-15 22:45:45,671 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 402 transitions. Word has length 90 [2023-02-15 22:45:45,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:45,672 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 402 transitions. [2023-02-15 22:45:45,672 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.5) internal successors, (54), 10 states have internal predecessors, (54), 3 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2023-02-15 22:45:45,672 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 402 transitions. [2023-02-15 22:45:45,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-02-15 22:45:45,673 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:45,673 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 5, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:45,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-02-15 22:45:45,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:45,877 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:45,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:45,891 INFO L85 PathProgramCache]: Analyzing trace with hash -527517657, now seen corresponding path program 1 times [2023-02-15 22:45:45,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:45,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432390439] [2023-02-15 22:45:45,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:45,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:45,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:46,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:46,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:46,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-02-15 22:45:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:46,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-02-15 22:45:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:46,178 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 4 proven. 91 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:46,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:46,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432390439] [2023-02-15 22:45:46,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432390439] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:46,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104521517] [2023-02-15 22:45:46,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:46,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:46,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:46,180 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) [2023-02-15 22:45:46,207 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-02-15 22:45:46,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:46,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 13 conjunts are in the unsatisfiable core [2023-02-15 22:45:46,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:46,338 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 22:45:46,338 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:46,488 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2023-02-15 22:45:46,488 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104521517] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:46,488 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:46,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 20 [2023-02-15 22:45:46,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671818937] [2023-02-15 22:45:46,489 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:46,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-02-15 22:45:46,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:46,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-02-15 22:45:46,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=326, Unknown=0, NotChecked=0, Total=380 [2023-02-15 22:45:46,490 INFO L87 Difference]: Start difference. First operand 326 states and 402 transitions. Second operand has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-15 22:45:46,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:46,919 INFO L93 Difference]: Finished difference Result 741 states and 924 transitions. [2023-02-15 22:45:46,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-02-15 22:45:46,919 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) Word has length 90 [2023-02-15 22:45:46,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:46,921 INFO L225 Difference]: With dead ends: 741 [2023-02-15 22:45:46,921 INFO L226 Difference]: Without dead ends: 507 [2023-02-15 22:45:46,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812 [2023-02-15 22:45:46,923 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 271 mSDsluCounter, 1048 mSDsCounter, 0 mSdLazyCounter, 569 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 271 SdHoareTripleChecker+Valid, 1138 SdHoareTripleChecker+Invalid, 589 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:46,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [271 Valid, 1138 Invalid, 589 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 569 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-02-15 22:45:46,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 507 states. [2023-02-15 22:45:46,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 507 to 326. [2023-02-15 22:45:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 305 states have (on average 1.2491803278688525) internal successors, (381), 309 states have internal predecessors, (381), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 22:45:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 398 transitions. [2023-02-15 22:45:46,939 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 398 transitions. Word has length 90 [2023-02-15 22:45:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:46,939 INFO L495 AbstractCegarLoop]: Abstraction has 326 states and 398 transitions. [2023-02-15 22:45:46,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.55) internal successors, (111), 18 states have internal predecessors, (111), 4 states have call successors, (7), 1 states have call predecessors, (7), 4 states have return successors, (9), 6 states have call predecessors, (9), 4 states have call successors, (9) [2023-02-15 22:45:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 398 transitions. [2023-02-15 22:45:46,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-02-15 22:45:46,942 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:46,942 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:46,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:47,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-02-15 22:45:47,147 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:47,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:47,148 INFO L85 PathProgramCache]: Analyzing trace with hash -29290607, now seen corresponding path program 3 times [2023-02-15 22:45:47,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:47,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507018256] [2023-02-15 22:45:47,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:47,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:47,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:47,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:47,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 22:45:47,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:47,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 22:45:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:47,373 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:47,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:47,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507018256] [2023-02-15 22:45:47,373 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507018256] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:47,373 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2112308307] [2023-02-15 22:45:47,373 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-02-15 22:45:47,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:47,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:47,375 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:47,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-02-15 22:45:47,418 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2023-02-15 22:45:47,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:45:47,419 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 22:45:47,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:47,488 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-02-15 22:45:47,488 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:47,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2112308307] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:47,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:47,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [11] total 17 [2023-02-15 22:45:47,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094334474] [2023-02-15 22:45:47,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:47,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-02-15 22:45:47,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:47,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-02-15 22:45:47,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2023-02-15 22:45:47,491 INFO L87 Difference]: Start difference. First operand 326 states and 398 transitions. Second operand has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:47,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:47,596 INFO L93 Difference]: Finished difference Result 389 states and 463 transitions. [2023-02-15 22:45:47,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-02-15 22:45:47,597 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 95 [2023-02-15 22:45:47,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:47,598 INFO L225 Difference]: With dead ends: 389 [2023-02-15 22:45:47,598 INFO L226 Difference]: Without dead ends: 387 [2023-02-15 22:45:47,598 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2023-02-15 22:45:47,599 INFO L413 NwaCegarLoop]: 116 mSDtfsCounter, 151 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 722 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:47,600 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 722 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:47,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2023-02-15 22:45:47,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 317. [2023-02-15 22:45:47,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 296 states have (on average 1.2533783783783783) internal successors, (371), 300 states have internal predecessors, (371), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 22:45:47,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 388 transitions. [2023-02-15 22:45:47,616 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 388 transitions. Word has length 95 [2023-02-15 22:45:47,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:47,616 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 388 transitions. [2023-02-15 22:45:47,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.857142857142857) internal successors, (41), 7 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:47,616 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 388 transitions. [2023-02-15 22:45:47,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-02-15 22:45:47,617 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:47,617 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:47,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:47,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-02-15 22:45:47,823 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:47,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:47,823 INFO L85 PathProgramCache]: Analyzing trace with hash 27967695, now seen corresponding path program 2 times [2023-02-15 22:45:47,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:47,823 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664232571] [2023-02-15 22:45:47,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:47,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:47,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:47,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:47,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:48,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 22:45:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 22:45:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 4 proven. 121 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:45:48,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:48,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664232571] [2023-02-15 22:45:48,047 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664232571] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:48,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1867477684] [2023-02-15 22:45:48,048 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:45:48,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:48,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:48,049 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:48,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-02-15 22:45:48,107 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-02-15 22:45:48,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:45:48,108 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 15 conjunts are in the unsatisfiable core [2023-02-15 22:45:48,109 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:48,217 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2023-02-15 22:45:48,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:45:48,218 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1867477684] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:45:48,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:45:48,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 18 [2023-02-15 22:45:48,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540542142] [2023-02-15 22:45:48,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:45:48,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-02-15 22:45:48,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:48,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-02-15 22:45:48,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2023-02-15 22:45:48,220 INFO L87 Difference]: Start difference. First operand 317 states and 388 transitions. Second operand has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:48,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:45:48,360 INFO L93 Difference]: Finished difference Result 407 states and 481 transitions. [2023-02-15 22:45:48,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-02-15 22:45:48,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 95 [2023-02-15 22:45:48,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:45:48,362 INFO L225 Difference]: With dead ends: 407 [2023-02-15 22:45:48,362 INFO L226 Difference]: Without dead ends: 376 [2023-02-15 22:45:48,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2023-02-15 22:45:48,363 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 209 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:45:48,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 591 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:45:48,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2023-02-15 22:45:48,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 312. [2023-02-15 22:45:48,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 291 states have (on average 1.2474226804123711) internal successors, (363), 295 states have internal predecessors, (363), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 22:45:48,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 380 transitions. [2023-02-15 22:45:48,379 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 380 transitions. Word has length 95 [2023-02-15 22:45:48,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:45:48,379 INFO L495 AbstractCegarLoop]: Abstraction has 312 states and 380 transitions. [2023-02-15 22:45:48,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:45:48,379 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 380 transitions. [2023-02-15 22:45:48,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-02-15 22:45:48,393 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:45:48,393 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:45:48,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-02-15 22:45:48,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-02-15 22:45:48,598 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:45:48,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:45:48,598 INFO L85 PathProgramCache]: Analyzing trace with hash 375111080, now seen corresponding path program 1 times [2023-02-15 22:45:48,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:45:48,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262447530] [2023-02-15 22:45:48,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:48,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:45:48,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:48,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:45:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:48,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:45:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:48,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2023-02-15 22:45:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:48,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-02-15 22:45:48,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:48,822 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 127 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 22:45:48,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:45:48,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262447530] [2023-02-15 22:45:48,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262447530] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:45:48,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279756030] [2023-02-15 22:45:48,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:45:48,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:45:48,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:45:48,824 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:45:48,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-02-15 22:45:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:45:48,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 19 conjunts are in the unsatisfiable core [2023-02-15 22:45:48,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:45:49,127 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 38 proven. 105 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 22:45:49,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:45:49,409 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 127 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 22:45:49,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279756030] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:45:49,409 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:45:49,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2023-02-15 22:45:49,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378129309] [2023-02-15 22:45:49,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:45:49,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-02-15 22:45:49,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:45:49,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-02-15 22:45:49,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=522, Unknown=0, NotChecked=0, Total=756 [2023-02-15 22:45:49,410 INFO L87 Difference]: Start difference. First operand 312 states and 380 transitions. Second operand has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 22:46:19,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:19,913 INFO L93 Difference]: Finished difference Result 817 states and 1030 transitions. [2023-02-15 22:46:19,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-02-15 22:46:19,921 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 100 [2023-02-15 22:46:19,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:19,923 INFO L225 Difference]: With dead ends: 817 [2023-02-15 22:46:19,923 INFO L226 Difference]: Without dead ends: 579 [2023-02-15 22:46:19,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 454 ImplicationChecksByTransitivity, 29.9s TimeCoverageRelationStatistics Valid=634, Invalid=1166, Unknown=6, NotChecked=0, Total=1806 [2023-02-15 22:46:19,926 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 350 mSDsluCounter, 844 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:19,926 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 950 Invalid, 913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-02-15 22:46:19,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2023-02-15 22:46:19,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 313. [2023-02-15 22:46:19,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 292 states have (on average 1.2157534246575343) internal successors, (355), 296 states have internal predecessors, (355), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 22:46:19,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 372 transitions. [2023-02-15 22:46:19,946 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 372 transitions. Word has length 100 [2023-02-15 22:46:19,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:19,947 INFO L495 AbstractCegarLoop]: Abstraction has 313 states and 372 transitions. [2023-02-15 22:46:19,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 6.178571428571429) internal successors, (173), 28 states have internal predecessors, (173), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 22:46:19,948 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 372 transitions. [2023-02-15 22:46:19,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2023-02-15 22:46:19,949 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:19,949 INFO L195 NwaCegarLoop]: trace histogram [15, 14, 14, 14, 14, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:19,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:20,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-02-15 22:46:20,154 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:46:20,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:20,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1300138776, now seen corresponding path program 1 times [2023-02-15 22:46:20,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:20,155 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022371936] [2023-02-15 22:46:20,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:20,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:20,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:20,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:20,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:20,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:20,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-02-15 22:46:20,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:20,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-02-15 22:46:20,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:20,510 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 22:46:20,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:20,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022371936] [2023-02-15 22:46:20,511 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022371936] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:20,511 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1192915085] [2023-02-15 22:46:20,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:20,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:20,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:20,522 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:20,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-02-15 22:46:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:20,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 17 conjunts are in the unsatisfiable core [2023-02-15 22:46:20,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:20,790 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 26 proven. 483 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 22:46:20,790 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:21,388 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 4 proven. 493 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 22:46:21,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1192915085] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:21,388 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:21,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 50 [2023-02-15 22:46:21,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739376327] [2023-02-15 22:46:21,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:21,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-02-15 22:46:21,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:21,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-02-15 22:46:21,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=846, Invalid=1604, Unknown=0, NotChecked=0, Total=2450 [2023-02-15 22:46:21,390 INFO L87 Difference]: Start difference. First operand 313 states and 372 transitions. Second operand has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 22:46:22,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:22,321 INFO L93 Difference]: Finished difference Result 1881 states and 2434 transitions. [2023-02-15 22:46:22,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-02-15 22:46:22,321 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 131 [2023-02-15 22:46:22,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:22,325 INFO L225 Difference]: With dead ends: 1881 [2023-02-15 22:46:22,326 INFO L226 Difference]: Without dead ends: 1665 [2023-02-15 22:46:22,327 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 321 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1257 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1744, Invalid=2812, Unknown=0, NotChecked=0, Total=4556 [2023-02-15 22:46:22,327 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 1472 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 456 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1472 SdHoareTripleChecker+Valid, 895 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:22,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1472 Valid, 895 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 456 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-02-15 22:46:22,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1665 states. [2023-02-15 22:46:22,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1665 to 392. [2023-02-15 22:46:22,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 392 states, 371 states have (on average 1.2129380053908356) internal successors, (450), 375 states have internal predecessors, (450), 5 states have call successors, (5), 4 states have call predecessors, (5), 8 states have return successors, (12), 12 states have call predecessors, (12), 5 states have call successors, (12) [2023-02-15 22:46:22,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 467 transitions. [2023-02-15 22:46:22,357 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 467 transitions. Word has length 131 [2023-02-15 22:46:22,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:22,357 INFO L495 AbstractCegarLoop]: Abstraction has 392 states and 467 transitions. [2023-02-15 22:46:22,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.48) internal successors, (274), 50 states have internal predecessors, (274), 2 states have call successors, (6), 2 states have call predecessors, (6), 5 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-02-15 22:46:22,357 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 467 transitions. [2023-02-15 22:46:22,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-02-15 22:46:22,358 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:22,358 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 16, 15, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:22,363 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:22,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:22,564 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:46:22,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:22,564 INFO L85 PathProgramCache]: Analyzing trace with hash -1457790758, now seen corresponding path program 2 times [2023-02-15 22:46:22,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:22,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094243882] [2023-02-15 22:46:22,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:22,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:22,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:22,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:22,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:22,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:23,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2023-02-15 22:46:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:23,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-15 22:46:23,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:23,045 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 4 proven. 622 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 22:46:23,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:23,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094243882] [2023-02-15 22:46:23,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094243882] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:23,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162550155] [2023-02-15 22:46:23,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-02-15 22:46:23,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:23,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:23,046 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:23,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-02-15 22:46:23,185 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-02-15 22:46:23,185 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-02-15 22:46:23,186 INFO L263 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 24 conjunts are in the unsatisfiable core [2023-02-15 22:46:23,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:23,510 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-02-15 22:46:23,510 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:24,031 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2023-02-15 22:46:24,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162550155] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:24,031 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:24,031 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 9] total 37 [2023-02-15 22:46:24,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014965057] [2023-02-15 22:46:24,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:24,032 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-02-15 22:46:24,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:24,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-02-15 22:46:24,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=1219, Unknown=0, NotChecked=0, Total=1332 [2023-02-15 22:46:24,034 INFO L87 Difference]: Start difference. First operand 392 states and 467 transitions. Second operand has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-15 22:46:25,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:25,881 INFO L93 Difference]: Finished difference Result 1174 states and 1425 transitions. [2023-02-15 22:46:25,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2023-02-15 22:46:25,881 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 145 [2023-02-15 22:46:25,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:25,884 INFO L225 Difference]: With dead ends: 1174 [2023-02-15 22:46:25,884 INFO L226 Difference]: Without dead ends: 954 [2023-02-15 22:46:25,885 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 285 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 325 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=460, Invalid=2962, Unknown=0, NotChecked=0, Total=3422 [2023-02-15 22:46:25,885 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 810 mSDsluCounter, 4326 mSDsCounter, 0 mSdLazyCounter, 2380 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 820 SdHoareTripleChecker+Valid, 4522 SdHoareTripleChecker+Invalid, 2461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 2380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:25,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [820 Valid, 4522 Invalid, 2461 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 2380 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-02-15 22:46:25,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 954 states. [2023-02-15 22:46:25,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 954 to 430. [2023-02-15 22:46:25,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 407 states have (on average 1.2235872235872236) internal successors, (498), 409 states have internal predecessors, (498), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-15 22:46:25,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 521 transitions. [2023-02-15 22:46:25,913 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 521 transitions. Word has length 145 [2023-02-15 22:46:25,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:25,913 INFO L495 AbstractCegarLoop]: Abstraction has 430 states and 521 transitions. [2023-02-15 22:46:25,913 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.972972972972973) internal successors, (184), 35 states have internal predecessors, (184), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-15 22:46:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 521 transitions. [2023-02-15 22:46:25,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-02-15 22:46:25,914 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:25,915 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:25,936 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:26,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2023-02-15 22:46:26,120 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:46:26,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:26,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1324169322, now seen corresponding path program 1 times [2023-02-15 22:46:26,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:26,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859515944] [2023-02-15 22:46:26,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:26,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:26,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:26,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:26,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:26,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 22:46:26,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:26,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2023-02-15 22:46:26,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:26,641 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 4 proven. 690 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-02-15 22:46:26,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:26,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859515944] [2023-02-15 22:46:26,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859515944] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:26,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786171780] [2023-02-15 22:46:26,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:26,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:26,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:26,643 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:26,652 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-02-15 22:46:26,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:26,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 31 conjunts are in the unsatisfiable core [2023-02-15 22:46:26,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:26,956 INFO L134 CoverageAnalysis]: Checked inductivity of 716 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 704 trivial. 0 not checked. [2023-02-15 22:46:26,956 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-02-15 22:46:26,956 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786171780] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:46:26,956 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-02-15 22:46:26,956 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [21] total 30 [2023-02-15 22:46:26,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460884092] [2023-02-15 22:46:26,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:46:26,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-02-15 22:46:26,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:26,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-02-15 22:46:26,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=777, Unknown=0, NotChecked=0, Total=870 [2023-02-15 22:46:26,958 INFO L87 Difference]: Start difference. First operand 430 states and 521 transitions. Second operand has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 22:46:27,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:27,142 INFO L93 Difference]: Finished difference Result 517 states and 616 transitions. [2023-02-15 22:46:27,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-02-15 22:46:27,142 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 151 [2023-02-15 22:46:27,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:27,144 INFO L225 Difference]: With dead ends: 517 [2023-02-15 22:46:27,144 INFO L226 Difference]: Without dead ends: 515 [2023-02-15 22:46:27,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=118, Invalid=1004, Unknown=0, NotChecked=0, Total=1122 [2023-02-15 22:46:27,145 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 119 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:27,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 755 Invalid, 210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-02-15 22:46:27,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2023-02-15 22:46:27,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 449. [2023-02-15 22:46:27,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 426 states have (on average 1.2183098591549295) internal successors, (519), 428 states have internal predecessors, (519), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-15 22:46:27,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 542 transitions. [2023-02-15 22:46:27,171 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 542 transitions. Word has length 151 [2023-02-15 22:46:27,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:27,171 INFO L495 AbstractCegarLoop]: Abstraction has 449 states and 542 transitions. [2023-02-15 22:46:27,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 5.666666666666667) internal successors, (51), 9 states have internal predecessors, (51), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2023-02-15 22:46:27,172 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 542 transitions. [2023-02-15 22:46:27,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-02-15 22:46:27,173 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:27,173 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:27,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:27,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-02-15 22:46:27,378 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:46:27,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:27,378 INFO L85 PathProgramCache]: Analyzing trace with hash -2078784474, now seen corresponding path program 1 times [2023-02-15 22:46:27,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:27,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82766079] [2023-02-15 22:46:27,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:27,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:27,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:27,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 22:46:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 22:46:27,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 733 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 714 trivial. 0 not checked. [2023-02-15 22:46:27,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:27,468 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82766079] [2023-02-15 22:46:27,468 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82766079] provided 1 perfect and 0 imperfect interpolant sequences [2023-02-15 22:46:27,468 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-02-15 22:46:27,468 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-02-15 22:46:27,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828628056] [2023-02-15 22:46:27,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-02-15 22:46:27,469 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-02-15 22:46:27,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:27,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-02-15 22:46:27,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:46:27,470 INFO L87 Difference]: Start difference. First operand 449 states and 542 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:46:27,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:27,517 INFO L93 Difference]: Finished difference Result 765 states and 947 transitions. [2023-02-15 22:46:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-02-15 22:46:27,518 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 151 [2023-02-15 22:46:27,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:27,519 INFO L225 Difference]: With dead ends: 765 [2023-02-15 22:46:27,520 INFO L226 Difference]: Without dead ends: 493 [2023-02-15 22:46:27,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-02-15 22:46:27,521 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 4 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 265 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:27,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 265 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-02-15 22:46:27,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2023-02-15 22:46:27,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 469. [2023-02-15 22:46:27,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 446 states have (on average 1.2085201793721974) internal successors, (539), 448 states have internal predecessors, (539), 6 states have call successors, (6), 4 states have call predecessors, (6), 9 states have return successors, (17), 16 states have call predecessors, (17), 6 states have call successors, (17) [2023-02-15 22:46:27,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 562 transitions. [2023-02-15 22:46:27,551 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 562 transitions. Word has length 151 [2023-02-15 22:46:27,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:27,552 INFO L495 AbstractCegarLoop]: Abstraction has 469 states and 562 transitions. [2023-02-15 22:46:27,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2023-02-15 22:46:27,552 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 562 transitions. [2023-02-15 22:46:27,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-02-15 22:46:27,553 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:27,553 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:27,554 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-02-15 22:46:27,554 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:46:27,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:27,554 INFO L85 PathProgramCache]: Analyzing trace with hash -1134006928, now seen corresponding path program 1 times [2023-02-15 22:46:27,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:27,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057335915] [2023-02-15 22:46:27,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:27,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:27,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:27,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:27,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 22:46:27,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 22:46:27,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2023-02-15 22:46:27,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:27,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057335915] [2023-02-15 22:46:27,823 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057335915] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:27,823 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263357469] [2023-02-15 22:46:27,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:27,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:27,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:27,825 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:27,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-02-15 22:46:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:27,902 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 26 conjunts are in the unsatisfiable core [2023-02-15 22:46:27,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:28,039 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-02-15 22:46:28,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:28,183 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2023-02-15 22:46:28,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263357469] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:28,183 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:28,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 9] total 24 [2023-02-15 22:46:28,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079947889] [2023-02-15 22:46:28,184 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:28,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-02-15 22:46:28,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:28,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-02-15 22:46:28,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2023-02-15 22:46:28,185 INFO L87 Difference]: Start difference. First operand 469 states and 562 transitions. Second operand has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-15 22:46:29,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:29,240 INFO L93 Difference]: Finished difference Result 1396 states and 1606 transitions. [2023-02-15 22:46:29,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-02-15 22:46:29,250 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) Word has length 152 [2023-02-15 22:46:29,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:29,253 INFO L225 Difference]: With dead ends: 1396 [2023-02-15 22:46:29,253 INFO L226 Difference]: Without dead ends: 1347 [2023-02-15 22:46:29,255 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=455, Invalid=2625, Unknown=0, NotChecked=0, Total=3080 [2023-02-15 22:46:29,256 INFO L413 NwaCegarLoop]: 244 mSDtfsCounter, 840 mSDsluCounter, 3459 mSDsCounter, 0 mSdLazyCounter, 1479 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 3703 SdHoareTripleChecker+Invalid, 1501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:29,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 3703 Invalid, 1501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1479 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-02-15 22:46:29,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1347 states. [2023-02-15 22:46:29,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1347 to 505. [2023-02-15 22:46:29,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 505 states, 480 states have (on average 1.2145833333333333) internal successors, (583), 479 states have internal predecessors, (583), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 21 states have call predecessors, (22), 7 states have call successors, (22) [2023-02-15 22:46:29,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 505 states to 505 states and 612 transitions. [2023-02-15 22:46:29,299 INFO L78 Accepts]: Start accepts. Automaton has 505 states and 612 transitions. Word has length 152 [2023-02-15 22:46:29,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:29,300 INFO L495 AbstractCegarLoop]: Abstraction has 505 states and 612 transitions. [2023-02-15 22:46:29,300 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 4.208333333333333) internal successors, (101), 21 states have internal predecessors, (101), 4 states have call successors, (6), 1 states have call predecessors, (6), 4 states have return successors, (8), 7 states have call predecessors, (8), 4 states have call successors, (8) [2023-02-15 22:46:29,300 INFO L276 IsEmpty]: Start isEmpty. Operand 505 states and 612 transitions. [2023-02-15 22:46:29,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-02-15 22:46:29,301 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:29,301 INFO L195 NwaCegarLoop]: trace histogram [17, 17, 17, 17, 16, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:29,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:29,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:29,506 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:46:29,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:29,507 INFO L85 PathProgramCache]: Analyzing trace with hash -1134005006, now seen corresponding path program 1 times [2023-02-15 22:46:29,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:29,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155683096] [2023-02-15 22:46:29,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:29,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:29,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:29,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:29,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:29,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:30,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2023-02-15 22:46:30,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:30,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2023-02-15 22:46:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:30,079 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 4 proven. 696 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-02-15 22:46:30,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:30,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155683096] [2023-02-15 22:46:30,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155683096] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:30,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1130123689] [2023-02-15 22:46:30,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:30,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:30,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:30,081 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:30,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-02-15 22:46:30,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:30,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 28 conjunts are in the unsatisfiable core [2023-02-15 22:46:30,158 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:30,506 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-02-15 22:46:30,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:31,061 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 15 proven. 7 refuted. 0 times theorem prover too weak. 699 trivial. 0 not checked. [2023-02-15 22:46:31,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1130123689] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:31,061 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:31,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 10] total 40 [2023-02-15 22:46:31,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880303357] [2023-02-15 22:46:31,062 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:31,062 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-02-15 22:46:31,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:31,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-02-15 22:46:31,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=1438, Unknown=0, NotChecked=0, Total=1560 [2023-02-15 22:46:31,063 INFO L87 Difference]: Start difference. First operand 505 states and 612 transitions. Second operand has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-15 22:46:33,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-02-15 22:46:33,610 INFO L93 Difference]: Finished difference Result 1453 states and 1753 transitions. [2023-02-15 22:46:33,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2023-02-15 22:46:33,611 INFO L78 Accepts]: Start accepts. Automaton has has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) Word has length 152 [2023-02-15 22:46:33,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-02-15 22:46:33,614 INFO L225 Difference]: With dead ends: 1453 [2023-02-15 22:46:33,614 INFO L226 Difference]: Without dead ends: 1120 [2023-02-15 22:46:33,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 366 GetRequests, 296 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 578 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=627, Invalid=4485, Unknown=0, NotChecked=0, Total=5112 [2023-02-15 22:46:33,617 INFO L413 NwaCegarLoop]: 270 mSDtfsCounter, 672 mSDsluCounter, 4682 mSDsCounter, 0 mSdLazyCounter, 2869 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 682 SdHoareTripleChecker+Valid, 4952 SdHoareTripleChecker+Invalid, 2904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 2869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-02-15 22:46:33,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [682 Valid, 4952 Invalid, 2904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 2869 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-02-15 22:46:33,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1120 states. [2023-02-15 22:46:33,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1120 to 519. [2023-02-15 22:46:33,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 494 states have (on average 1.2186234817813766) internal successors, (602), 492 states have internal predecessors, (602), 7 states have call successors, (7), 4 states have call predecessors, (7), 10 states have return successors, (22), 22 states have call predecessors, (22), 7 states have call successors, (22) [2023-02-15 22:46:33,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 631 transitions. [2023-02-15 22:46:33,675 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 631 transitions. Word has length 152 [2023-02-15 22:46:33,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-02-15 22:46:33,675 INFO L495 AbstractCegarLoop]: Abstraction has 519 states and 631 transitions. [2023-02-15 22:46:33,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 5.3) internal successors, (212), 38 states have internal predecessors, (212), 6 states have call successors, (12), 1 states have call predecessors, (12), 4 states have return successors, (12), 8 states have call predecessors, (12), 6 states have call successors, (12) [2023-02-15 22:46:33,675 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 631 transitions. [2023-02-15 22:46:33,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2023-02-15 22:46:33,677 INFO L187 NwaCegarLoop]: Found error trace [2023-02-15 22:46:33,677 INFO L195 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 17, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-02-15 22:46:33,691 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2023-02-15 22:46:33,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:33,884 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2023-02-15 22:46:33,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-02-15 22:46:33,884 INFO L85 PathProgramCache]: Analyzing trace with hash -2041814602, now seen corresponding path program 1 times [2023-02-15 22:46:33,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-02-15 22:46:33,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767416] [2023-02-15 22:46:33,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:33,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-02-15 22:46:33,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-02-15 22:46:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2023-02-15 22:46:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2023-02-15 22:46:34,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:34,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2023-02-15 22:46:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:34,421 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 4 proven. 787 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 22:46:34,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-02-15 22:46:34,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767416] [2023-02-15 22:46:34,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767416] provided 0 perfect and 1 imperfect interpolant sequences [2023-02-15 22:46:34,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685159297] [2023-02-15 22:46:34,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-02-15 22:46:34,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-02-15 22:46:34,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-02-15 22:46:34,422 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-02-15 22:46:34,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2023-02-15 22:46:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-02-15 22:46:34,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 41 conjunts are in the unsatisfiable core [2023-02-15 22:46:34,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-02-15 22:46:35,077 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 38 proven. 765 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-02-15 22:46:35,078 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-02-15 22:46:35,841 INFO L134 CoverageAnalysis]: Checked inductivity of 818 backedges. 4 proven. 787 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2023-02-15 22:46:35,841 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685159297] provided 0 perfect and 2 imperfect interpolant sequences [2023-02-15 22:46:35,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-02-15 22:46:35,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 61 [2023-02-15 22:46:35,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691514110] [2023-02-15 22:46:35,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-02-15 22:46:35,842 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2023-02-15 22:46:35,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-02-15 22:46:35,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2023-02-15 22:46:35,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=814, Invalid=2846, Unknown=0, NotChecked=0, Total=3660 [2023-02-15 22:46:35,844 INFO L87 Difference]: Start difference. First operand 519 states and 631 transitions. Second operand has 61 states, 61 states have (on average 5.672131147540983) internal successors, (346), 61 states have internal predecessors, (346), 2 states have call successors, (6), 2 states have call predecessors, (6), 4 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-02-15 22:46:53,644 WARN L233 SmtUtils]: Spent 15.09s on a formula simplification. DAG size of input: 66 DAG size of output: 29 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:47:02,771 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 22:47:14,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 22:47:17,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 22:47:19,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.89s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 22:47:21,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-02-15 22:47:35,802 WARN L233 SmtUtils]: Spent 9.04s on a formula simplification. DAG size of input: 76 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:47:47,572 WARN L233 SmtUtils]: Spent 9.33s on a formula simplification. DAG size of input: 88 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:48:00,988 WARN L233 SmtUtils]: Spent 8.20s on a formula simplification. DAG size of input: 82 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-02-15 22:48:23,351 WARN L233 SmtUtils]: Spent 8.59s on a formula simplification. DAG size of input: 76 DAG size of output: 22 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)