/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:11:42,142 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:11:42,145 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:11:42,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 22:11:42,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 22:11:42,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 22:11:42,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 22:11:42,214 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 22:11:42,217 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 22:11:42,225 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 22:11:42,227 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 22:11:42,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-15 22:11:42,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-15 22:11:42,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-15 22:11:42,238 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-15 22:11:42,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-15 22:11:42,246 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-15 22:11:42,248 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-15 22:11:42,252 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-15 22:11:42,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-15 22:11:42,264 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-15 22:11:42,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-15 22:11:42,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-15 22:11:42,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-15 22:11:42,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-15 22:11:42,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-15 22:11:42,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-15 22:11:42,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-15 22:11:42,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-15 22:11:42,298 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-15 22:11:42,298 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-15 22:11:42,299 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-15 22:11:42,301 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-15 22:11:42,302 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-15 22:11:42,304 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-15 22:11:42,304 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-15 22:11:42,305 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-15 22:11:42,305 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-15 22:11:42,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:11:42,306 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:11:42,307 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:11:42,308 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 22:11:42,359 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:11:42,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:11:42,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:11:42,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:11:42,361 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:11:42,361 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:11:42,362 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:11:42,362 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:11:42,362 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:11:42,363 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:11:42,363 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:11:42,363 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:11:42,363 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:11:42,364 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:11:42,364 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:11:42,364 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:11:42,364 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:11:42,364 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:11:42,365 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:11:42,365 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:11:42,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:11:42,365 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:11:42,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:11:42,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:11:42,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:11:42,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:11:42,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:11:42,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:11:42,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:11:42,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:11:42,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:11:42,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:11:42,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:11:42,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:11:42,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:11:42,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:11:42,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:11:42,789 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:11:42,790 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:11:42,791 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-10-15 22:11:42,880 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1badaea10/daff84a3bd71461781a65e0328ec1935/FLAGa295bc71f [2022-10-15 22:11:43,780 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:11:43,781 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-10-15 22:11:43,809 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1badaea10/daff84a3bd71461781a65e0328ec1935/FLAGa295bc71f [2022-10-15 22:11:43,892 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1badaea10/daff84a3bd71461781a65e0328ec1935 [2022-10-15 22:11:43,895 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:11:43,914 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:11:43,917 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:11:43,917 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:11:43,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:11:43,924 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:11:43" (1/1) ... [2022-10-15 22:11:43,927 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@107d3368 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:43, skipping insertion in model container [2022-10-15 22:11:43,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:11:43" (1/1) ... [2022-10-15 22:11:43,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:11:44,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:11:44,482 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9988,10001] [2022-10-15 22:11:44,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24517,24530] [2022-10-15 22:11:44,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:11:45,009 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:11:45,120 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[9988,10001] [2022-10-15 22:11:45,210 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded-reduced/pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c[24517,24530] [2022-10-15 22:11:45,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:11:45,387 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:11:45,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45 WrapperNode [2022-10-15 22:11:45,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:11:45,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:11:45,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:11:45,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:11:45,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,434 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,545 INFO L138 Inliner]: procedures = 24, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3778 [2022-10-15 22:11:45,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:11:45,547 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:11:45,547 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:11:45,547 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:11:45,560 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,588 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,648 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,671 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,685 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:11:45,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:11:45,723 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:11:45,723 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:11:45,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (1/1) ... [2022-10-15 22:11:45,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:11:45,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:11:45,767 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 22:11:45,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 22:11:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 22:11:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 22:11:45,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:11:45,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:11:46,138 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:11:46,140 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:11:48,998 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:11:49,019 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:11:49,020 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 22:11:49,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:11:49 BoogieIcfgContainer [2022-10-15 22:11:49,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:11:49,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:11:49,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:11:49,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:11:49,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:11:43" (1/3) ... [2022-10-15 22:11:49,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7290b8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:11:49, skipping insertion in model container [2022-10-15 22:11:49,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:11:45" (2/3) ... [2022-10-15 22:11:49,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7290b8f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:11:49, skipping insertion in model container [2022-10-15 22:11:49,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:11:49" (3/3) ... [2022-10-15 22:11:49,038 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.4.2.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2022-10-15 22:11:49,063 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:11:49,064 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 400 error locations. [2022-10-15 22:11:49,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:11:49,181 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32329599, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:11:49,182 INFO L358 AbstractCegarLoop]: Starting to check reachability of 400 error locations. [2022-10-15 22:11:49,193 INFO L276 IsEmpty]: Start isEmpty. Operand has 1497 states, 1096 states have (on average 1.864051094890511) internal successors, (2043), 1496 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:49,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 22:11:49,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:11:49,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 22:11:49,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:11:49,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:11:49,208 INFO L85 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2022-10-15 22:11:49,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:11:49,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266316135] [2022-10-15 22:11:49,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:11:49,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:11:49,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:11:49,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:11:49,496 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:11:49,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266316135] [2022-10-15 22:11:49,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266316135] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:11:49,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:11:49,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-10-15 22:11:49,499 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120860659] [2022-10-15 22:11:49,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:11:49,505 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-15 22:11:49,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:11:49,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-15 22:11:49,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 22:11:49,559 INFO L87 Difference]: Start difference. First operand has 1497 states, 1096 states have (on average 1.864051094890511) internal successors, (2043), 1496 states have internal predecessors, (2043), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:49,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:11:49,685 INFO L93 Difference]: Finished difference Result 1500 states and 2045 transitions. [2022-10-15 22:11:49,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-15 22:11:49,688 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-15 22:11:49,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:11:49,719 INFO L225 Difference]: With dead ends: 1500 [2022-10-15 22:11:49,720 INFO L226 Difference]: Without dead ends: 1484 [2022-10-15 22:11:49,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-15 22:11:49,732 INFO L413 NwaCegarLoop]: 2031 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2031 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:11:49,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2031 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:11:49,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1484 states. [2022-10-15 22:11:49,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1484 to 1484. [2022-10-15 22:11:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1484 states, 1094 states have (on average 1.576782449725777) internal successors, (1725), 1483 states have internal predecessors, (1725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:49,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1484 states to 1484 states and 1725 transitions. [2022-10-15 22:11:49,868 INFO L78 Accepts]: Start accepts. Automaton has 1484 states and 1725 transitions. Word has length 4 [2022-10-15 22:11:49,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:11:49,872 INFO L495 AbstractCegarLoop]: Abstraction has 1484 states and 1725 transitions. [2022-10-15 22:11:49,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:49,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1484 states and 1725 transitions. [2022-10-15 22:11:49,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-15 22:11:49,875 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:11:49,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:11:49,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:11:49,879 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr346ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:11:49,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:11:49,880 INFO L85 PathProgramCache]: Analyzing trace with hash -876729937, now seen corresponding path program 1 times [2022-10-15 22:11:49,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:11:49,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627564377] [2022-10-15 22:11:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:11:49,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:11:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:11:50,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:11:50,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:11:50,242 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627564377] [2022-10-15 22:11:50,242 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627564377] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:11:50,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:11:50,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:11:50,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282750710] [2022-10-15 22:11:50,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:11:50,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:11:50,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:11:50,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:11:50,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:11:50,246 INFO L87 Difference]: Start difference. First operand 1484 states and 1725 transitions. Second operand has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:51,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:11:51,414 INFO L93 Difference]: Finished difference Result 1686 states and 2019 transitions. [2022-10-15 22:11:51,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:11:51,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2022-10-15 22:11:51,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:11:51,424 INFO L225 Difference]: With dead ends: 1686 [2022-10-15 22:11:51,425 INFO L226 Difference]: Without dead ends: 1632 [2022-10-15 22:11:51,426 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:11:51,428 INFO L413 NwaCegarLoop]: 1023 mSDtfsCounter, 2929 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 1051 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2929 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 1119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1051 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:11:51,429 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2929 Valid, 1600 Invalid, 1119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1051 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-15 22:11:51,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2022-10-15 22:11:51,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1522. [2022-10-15 22:11:51,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1522 states, 1184 states have (on average 1.535472972972973) internal successors, (1818), 1521 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:51,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1522 states to 1522 states and 1818 transitions. [2022-10-15 22:11:51,495 INFO L78 Accepts]: Start accepts. Automaton has 1522 states and 1818 transitions. Word has length 45 [2022-10-15 22:11:51,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:11:51,495 INFO L495 AbstractCegarLoop]: Abstraction has 1522 states and 1818 transitions. [2022-10-15 22:11:51,496 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.0) internal successors, (45), 4 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:51,496 INFO L276 IsEmpty]: Start isEmpty. Operand 1522 states and 1818 transitions. [2022-10-15 22:11:51,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-15 22:11:51,499 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:11:51,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:11:51,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:11:51,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr347ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:11:51,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:11:51,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1408820920, now seen corresponding path program 1 times [2022-10-15 22:11:51,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:11:51,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853217898] [2022-10-15 22:11:51,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:11:51,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:11:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:11:51,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:11:51,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:11:51,682 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853217898] [2022-10-15 22:11:51,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853217898] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:11:51,683 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:11:51,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:11:51,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151051807] [2022-10-15 22:11:51,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:11:51,685 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:11:51,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:11:51,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:11:51,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:11:51,687 INFO L87 Difference]: Start difference. First operand 1522 states and 1818 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:52,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:11:52,574 INFO L93 Difference]: Finished difference Result 1622 states and 1965 transitions. [2022-10-15 22:11:52,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:11:52,575 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2022-10-15 22:11:52,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:11:52,584 INFO L225 Difference]: With dead ends: 1622 [2022-10-15 22:11:52,584 INFO L226 Difference]: Without dead ends: 1560 [2022-10-15 22:11:52,587 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:11:52,588 INFO L413 NwaCegarLoop]: 880 mSDtfsCounter, 3183 mSDsluCounter, 183 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3183 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:11:52,589 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3183 Valid, 1063 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 22:11:52,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1560 states. [2022-10-15 22:11:52,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1560 to 1552. [2022-10-15 22:11:52,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1552 states, 1274 states have (on average 1.4921507064364208) internal successors, (1901), 1551 states have internal predecessors, (1901), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:52,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1552 states to 1552 states and 1901 transitions. [2022-10-15 22:11:52,657 INFO L78 Accepts]: Start accepts. Automaton has 1552 states and 1901 transitions. Word has length 46 [2022-10-15 22:11:52,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:11:52,658 INFO L495 AbstractCegarLoop]: Abstraction has 1552 states and 1901 transitions. [2022-10-15 22:11:52,658 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:52,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1552 states and 1901 transitions. [2022-10-15 22:11:52,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 22:11:52,660 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:11:52,661 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:11:52,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:11:52,661 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr348ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:11:52,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:11:52,662 INFO L85 PathProgramCache]: Analyzing trace with hash -723772207, now seen corresponding path program 1 times [2022-10-15 22:11:52,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:11:52,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013255447] [2022-10-15 22:11:52,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:11:52,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:11:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:11:52,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:11:52,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:11:52,791 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013255447] [2022-10-15 22:11:52,791 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013255447] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:11:52,791 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:11:52,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:11:52,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568682212] [2022-10-15 22:11:52,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:11:52,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:11:52,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:11:52,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:11:52,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:11:52,794 INFO L87 Difference]: Start difference. First operand 1552 states and 1901 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:53,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:11:53,850 INFO L93 Difference]: Finished difference Result 1756 states and 2189 transitions. [2022-10-15 22:11:53,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 22:11:53,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2022-10-15 22:11:53,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:11:53,863 INFO L225 Difference]: With dead ends: 1756 [2022-10-15 22:11:53,864 INFO L226 Difference]: Without dead ends: 1704 [2022-10-15 22:11:53,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 22:11:53,878 INFO L413 NwaCegarLoop]: 1020 mSDtfsCounter, 4091 mSDsluCounter, 1069 mSDsCounter, 0 mSdLazyCounter, 1170 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4091 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 1244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 22:11:53,880 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4091 Valid, 2089 Invalid, 1244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1170 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-15 22:11:53,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1704 states. [2022-10-15 22:11:53,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1704 to 1592. [2022-10-15 22:11:54,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1592 states, 1364 states have (on average 1.4604105571847508) internal successors, (1992), 1591 states have internal predecessors, (1992), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:54,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1592 states to 1592 states and 1992 transitions. [2022-10-15 22:11:54,009 INFO L78 Accepts]: Start accepts. Automaton has 1592 states and 1992 transitions. Word has length 47 [2022-10-15 22:11:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:11:54,012 INFO L495 AbstractCegarLoop]: Abstraction has 1592 states and 1992 transitions. [2022-10-15 22:11:54,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:54,012 INFO L276 IsEmpty]: Start isEmpty. Operand 1592 states and 1992 transitions. [2022-10-15 22:11:54,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-15 22:11:54,015 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:11:54,015 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:11:54,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 22:11:54,016 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr349ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:11:54,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:11:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash -962098582, now seen corresponding path program 1 times [2022-10-15 22:11:54,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:11:54,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507532652] [2022-10-15 22:11:54,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:11:54,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:11:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:11:54,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:11:54,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:11:54,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507532652] [2022-10-15 22:11:54,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507532652] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:11:54,181 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:11:54,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:11:54,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964335526] [2022-10-15 22:11:54,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:11:54,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:11:54,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:11:54,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:11:54,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:11:54,183 INFO L87 Difference]: Start difference. First operand 1592 states and 1992 transitions. Second operand has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:55,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:11:55,114 INFO L93 Difference]: Finished difference Result 1698 states and 2137 transitions. [2022-10-15 22:11:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:11:55,115 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-15 22:11:55,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:11:55,125 INFO L225 Difference]: With dead ends: 1698 [2022-10-15 22:11:55,125 INFO L226 Difference]: Without dead ends: 1641 [2022-10-15 22:11:55,126 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-15 22:11:55,127 INFO L413 NwaCegarLoop]: 882 mSDtfsCounter, 4388 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4388 SdHoareTripleChecker+Valid, 1404 SdHoareTripleChecker+Invalid, 966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:11:55,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4388 Valid, 1404 Invalid, 966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 22:11:55,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2022-10-15 22:11:55,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1627. [2022-10-15 22:11:55,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1454 states have (on average 1.4277854195323245) internal successors, (2076), 1626 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:55,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2076 transitions. [2022-10-15 22:11:55,215 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2076 transitions. Word has length 48 [2022-10-15 22:11:55,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:11:55,215 INFO L495 AbstractCegarLoop]: Abstraction has 1627 states and 2076 transitions. [2022-10-15 22:11:55,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 12.0) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:55,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2076 transitions. [2022-10-15 22:11:55,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-10-15 22:11:55,218 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:11:55,218 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:11:55,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 22:11:55,219 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr350ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:11:55,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:11:55,219 INFO L85 PathProgramCache]: Analyzing trace with hash 239718387, now seen corresponding path program 1 times [2022-10-15 22:11:55,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:11:55,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022483123] [2022-10-15 22:11:55,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:11:55,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:11:55,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:11:55,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:11:55,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:11:55,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022483123] [2022-10-15 22:11:55,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2022483123] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:11:55,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:11:55,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:11:55,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194693083] [2022-10-15 22:11:55,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:11:55,352 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:11:55,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:11:55,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:11:55,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:11:55,353 INFO L87 Difference]: Start difference. First operand 1627 states and 2076 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:56,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:11:56,451 INFO L93 Difference]: Finished difference Result 2379 states and 3218 transitions. [2022-10-15 22:11:56,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-15 22:11:56,452 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2022-10-15 22:11:56,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:11:56,467 INFO L225 Difference]: With dead ends: 2379 [2022-10-15 22:11:56,468 INFO L226 Difference]: Without dead ends: 1868 [2022-10-15 22:11:56,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2022-10-15 22:11:56,477 INFO L413 NwaCegarLoop]: 1018 mSDtfsCounter, 5025 mSDsluCounter, 1671 mSDsCounter, 0 mSdLazyCounter, 1327 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5025 SdHoareTripleChecker+Valid, 2689 SdHoareTripleChecker+Invalid, 1414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 22:11:56,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5025 Valid, 2689 Invalid, 1414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1327 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-15 22:11:56,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1868 states. [2022-10-15 22:11:56,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1868 to 1668. [2022-10-15 22:11:56,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1668 states, 1544 states have (on average 1.400259067357513) internal successors, (2162), 1667 states have internal predecessors, (2162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:56,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2162 transitions. [2022-10-15 22:11:56,571 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2162 transitions. Word has length 49 [2022-10-15 22:11:56,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:11:56,572 INFO L495 AbstractCegarLoop]: Abstraction has 1668 states and 2162 transitions. [2022-10-15 22:11:56,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:56,572 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2162 transitions. [2022-10-15 22:11:56,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-10-15 22:11:56,576 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:11:56,576 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:11:56,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 22:11:56,578 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr351ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:11:56,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:11:56,579 INFO L85 PathProgramCache]: Analyzing trace with hash -1158661236, now seen corresponding path program 1 times [2022-10-15 22:11:56,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:11:56,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112387096] [2022-10-15 22:11:56,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:11:56,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:11:56,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:11:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:11:56,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:11:56,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112387096] [2022-10-15 22:11:56,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112387096] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:11:56,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:11:56,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:11:56,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425264757] [2022-10-15 22:11:56,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:11:56,767 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:11:56,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:11:56,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:11:56,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:11:56,768 INFO L87 Difference]: Start difference. First operand 1668 states and 2162 transitions. Second operand has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:57,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:11:57,916 INFO L93 Difference]: Finished difference Result 2061 states and 2741 transitions. [2022-10-15 22:11:57,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 22:11:57,916 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2022-10-15 22:11:57,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:11:57,929 INFO L225 Difference]: With dead ends: 2061 [2022-10-15 22:11:57,929 INFO L226 Difference]: Without dead ends: 2008 [2022-10-15 22:11:57,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2022-10-15 22:11:57,932 INFO L413 NwaCegarLoop]: 884 mSDtfsCounter, 5620 mSDsluCounter, 1223 mSDsCounter, 0 mSdLazyCounter, 1025 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5620 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 1143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 1025 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 22:11:57,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5620 Valid, 2107 Invalid, 1143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 1025 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-15 22:11:57,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2022-10-15 22:11:58,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1980. [2022-10-15 22:11:58,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1980 states, 1907 states have (on average 1.4042999475616151) internal successors, (2678), 1979 states have internal predecessors, (2678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1980 states to 1980 states and 2678 transitions. [2022-10-15 22:11:58,072 INFO L78 Accepts]: Start accepts. Automaton has 1980 states and 2678 transitions. Word has length 50 [2022-10-15 22:11:58,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:11:58,074 INFO L495 AbstractCegarLoop]: Abstraction has 1980 states and 2678 transitions. [2022-10-15 22:11:58,074 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 10.0) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:58,074 INFO L276 IsEmpty]: Start isEmpty. Operand 1980 states and 2678 transitions. [2022-10-15 22:11:58,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 22:11:58,077 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:11:58,078 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:11:58,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-15 22:11:58,078 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:11:58,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:11:58,079 INFO L85 PathProgramCache]: Analyzing trace with hash 370552339, now seen corresponding path program 1 times [2022-10-15 22:11:58,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:11:58,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194232558] [2022-10-15 22:11:58,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:11:58,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:11:58,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:11:58,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:11:58,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:11:58,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194232558] [2022-10-15 22:11:58,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194232558] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:11:58,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:11:58,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:11:58,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31551909] [2022-10-15 22:11:58,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:11:58,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:11:58,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:11:58,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:11:58,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:11:58,213 INFO L87 Difference]: Start difference. First operand 1980 states and 2678 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:58,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:11:58,518 INFO L93 Difference]: Finished difference Result 4163 states and 5919 transitions. [2022-10-15 22:11:58,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:11:58,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-10-15 22:11:58,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:11:58,534 INFO L225 Difference]: With dead ends: 4163 [2022-10-15 22:11:58,534 INFO L226 Difference]: Without dead ends: 2966 [2022-10-15 22:11:58,538 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:11:58,539 INFO L413 NwaCegarLoop]: 1412 mSDtfsCounter, 707 mSDsluCounter, 964 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 2376 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:11:58,540 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 2376 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:11:58,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2022-10-15 22:11:58,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2934. [2022-10-15 22:11:58,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2934 states, 2861 states have (on average 1.445298846557148) internal successors, (4135), 2933 states have internal predecessors, (4135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:58,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2934 states to 2934 states and 4135 transitions. [2022-10-15 22:11:58,783 INFO L78 Accepts]: Start accepts. Automaton has 2934 states and 4135 transitions. Word has length 72 [2022-10-15 22:11:58,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:11:58,784 INFO L495 AbstractCegarLoop]: Abstraction has 2934 states and 4135 transitions. [2022-10-15 22:11:58,784 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:11:58,784 INFO L276 IsEmpty]: Start isEmpty. Operand 2934 states and 4135 transitions. [2022-10-15 22:11:58,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-15 22:11:58,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:11:58,797 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:11:58,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-15 22:11:58,797 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:11:58,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:11:58,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1174024196, now seen corresponding path program 1 times [2022-10-15 22:11:58,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:11:58,800 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635050400] [2022-10-15 22:11:58,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:11:58,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:11:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:11:58,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:11:58,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:11:58,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635050400] [2022-10-15 22:11:58,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635050400] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:11:58,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:11:58,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:11:58,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156937082] [2022-10-15 22:11:58,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:11:58,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:11:58,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:11:58,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:11:58,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:11:58,988 INFO L87 Difference]: Start difference. First operand 2934 states and 4135 transitions. Second operand has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:00,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:00,002 INFO L93 Difference]: Finished difference Result 3646 states and 5231 transitions. [2022-10-15 22:12:00,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:12:00,003 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2022-10-15 22:12:00,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:00,022 INFO L225 Difference]: With dead ends: 3646 [2022-10-15 22:12:00,024 INFO L226 Difference]: Without dead ends: 3641 [2022-10-15 22:12:00,026 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 [2022-10-15 22:12:00,029 INFO L413 NwaCegarLoop]: 1097 mSDtfsCounter, 1379 mSDsluCounter, 949 mSDsCounter, 0 mSdLazyCounter, 954 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 2046 SdHoareTripleChecker+Invalid, 960 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 954 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:00,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 2046 Invalid, 960 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 954 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 22:12:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3641 states. [2022-10-15 22:12:00,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3641 to 3279. [2022-10-15 22:12:00,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3279 states, 3209 states have (on average 1.4562168899968837) internal successors, (4673), 3278 states have internal predecessors, (4673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:00,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3279 states to 3279 states and 4673 transitions. [2022-10-15 22:12:00,313 INFO L78 Accepts]: Start accepts. Automaton has 3279 states and 4673 transitions. Word has length 72 [2022-10-15 22:12:00,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:00,314 INFO L495 AbstractCegarLoop]: Abstraction has 3279 states and 4673 transitions. [2022-10-15 22:12:00,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:00,314 INFO L276 IsEmpty]: Start isEmpty. Operand 3279 states and 4673 transitions. [2022-10-15 22:12:00,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 22:12:00,317 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:00,317 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:00,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-15 22:12:00,318 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr70ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:00,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:00,324 INFO L85 PathProgramCache]: Analyzing trace with hash -1358141797, now seen corresponding path program 1 times [2022-10-15 22:12:00,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:00,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616245587] [2022-10-15 22:12:00,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:00,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:00,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:00,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:00,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:00,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616245587] [2022-10-15 22:12:00,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [616245587] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:00,474 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:00,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:12:00,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432558901] [2022-10-15 22:12:00,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:00,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:12:00,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:00,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:12:00,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:12:00,476 INFO L87 Difference]: Start difference. First operand 3279 states and 4673 transitions. Second operand has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:01,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:01,453 INFO L93 Difference]: Finished difference Result 3993 states and 5769 transitions. [2022-10-15 22:12:01,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:12:01,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-15 22:12:01,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:01,477 INFO L225 Difference]: With dead ends: 3993 [2022-10-15 22:12:01,477 INFO L226 Difference]: Without dead ends: 3988 [2022-10-15 22:12:01,480 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 [2022-10-15 22:12:01,481 INFO L413 NwaCegarLoop]: 1112 mSDtfsCounter, 1407 mSDsluCounter, 939 mSDsCounter, 0 mSdLazyCounter, 953 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 2051 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 953 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:01,481 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 2051 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 953 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 22:12:01,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3988 states. [2022-10-15 22:12:01,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3988 to 3804. [2022-10-15 22:12:01,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 3737 states have (on average 1.4723039871554724) internal successors, (5502), 3803 states have internal predecessors, (5502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:01,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 5502 transitions. [2022-10-15 22:12:01,857 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 5502 transitions. Word has length 74 [2022-10-15 22:12:01,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:01,857 INFO L495 AbstractCegarLoop]: Abstraction has 3804 states and 5502 transitions. [2022-10-15 22:12:01,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 24.666666666666668) internal successors, (74), 4 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:01,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 5502 transitions. [2022-10-15 22:12:01,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 22:12:01,861 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:01,861 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:01,862 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-15 22:12:01,862 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:01,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:01,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1339121050, now seen corresponding path program 1 times [2022-10-15 22:12:01,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:01,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879544213] [2022-10-15 22:12:01,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:01,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:01,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:02,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:02,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:02,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879544213] [2022-10-15 22:12:02,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879544213] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:02,029 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:02,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:12:02,029 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076570690] [2022-10-15 22:12:02,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:02,030 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:12:02,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:02,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:12:02,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:12:02,031 INFO L87 Difference]: Start difference. First operand 3804 states and 5502 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:03,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:03,108 INFO L93 Difference]: Finished difference Result 4170 states and 6046 transitions. [2022-10-15 22:12:03,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:12:03,109 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-15 22:12:03,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:03,132 INFO L225 Difference]: With dead ends: 4170 [2022-10-15 22:12:03,132 INFO L226 Difference]: Without dead ends: 4166 [2022-10-15 22:12:03,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:12:03,136 INFO L413 NwaCegarLoop]: 1102 mSDtfsCounter, 2532 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 1300 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2532 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 1306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:03,136 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2532 Valid, 2409 Invalid, 1306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1300 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 22:12:03,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4166 states. [2022-10-15 22:12:03,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4166 to 4150. [2022-10-15 22:12:03,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4150 states, 4085 states have (on average 1.477111383108935) internal successors, (6034), 4149 states have internal predecessors, (6034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4150 states to 4150 states and 6034 transitions. [2022-10-15 22:12:03,504 INFO L78 Accepts]: Start accepts. Automaton has 4150 states and 6034 transitions. Word has length 74 [2022-10-15 22:12:03,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:03,504 INFO L495 AbstractCegarLoop]: Abstraction has 4150 states and 6034 transitions. [2022-10-15 22:12:03,505 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:03,505 INFO L276 IsEmpty]: Start isEmpty. Operand 4150 states and 6034 transitions. [2022-10-15 22:12:03,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 22:12:03,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:03,508 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:03,508 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 22:12:03,509 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:03,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:03,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1104889394, now seen corresponding path program 1 times [2022-10-15 22:12:03,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:03,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020098221] [2022-10-15 22:12:03,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:03,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:03,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:03,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:03,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020098221] [2022-10-15 22:12:03,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020098221] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:03,594 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:03,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:12:03,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736682037] [2022-10-15 22:12:03,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:03,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:12:03,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:03,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:12:03,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:12:03,596 INFO L87 Difference]: Start difference. First operand 4150 states and 6034 transitions. Second operand has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:04,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:04,075 INFO L93 Difference]: Finished difference Result 10315 states and 15393 transitions. [2022-10-15 22:12:04,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:12:04,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-15 22:12:04,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:04,096 INFO L225 Difference]: With dead ends: 10315 [2022-10-15 22:12:04,096 INFO L226 Difference]: Without dead ends: 6999 [2022-10-15 22:12:04,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:12:04,104 INFO L413 NwaCegarLoop]: 1427 mSDtfsCounter, 740 mSDsluCounter, 945 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 2372 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:04,105 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 2372 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:12:04,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6999 states. [2022-10-15 22:12:04,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6999 to 6955. [2022-10-15 22:12:04,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 6890 states have (on average 1.4917271407837445) internal successors, (10278), 6954 states have internal predecessors, (10278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:04,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 10278 transitions. [2022-10-15 22:12:04,604 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 10278 transitions. Word has length 74 [2022-10-15 22:12:04,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:04,605 INFO L495 AbstractCegarLoop]: Abstraction has 6955 states and 10278 transitions. [2022-10-15 22:12:04,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.666666666666668) internal successors, (74), 3 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:04,605 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 10278 transitions. [2022-10-15 22:12:04,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-15 22:12:04,608 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:04,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:04,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 22:12:04,609 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:04,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:04,610 INFO L85 PathProgramCache]: Analyzing trace with hash 1942616821, now seen corresponding path program 1 times [2022-10-15 22:12:04,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:04,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432963295] [2022-10-15 22:12:04,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:04,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:04,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:04,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:04,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:04,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432963295] [2022-10-15 22:12:04,757 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432963295] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:04,758 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:04,758 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:12:04,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834973379] [2022-10-15 22:12:04,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:04,759 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:12:04,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:04,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:12:04,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:12:04,760 INFO L87 Difference]: Start difference. First operand 6955 states and 10278 transitions. Second operand has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:06,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:06,095 INFO L93 Difference]: Finished difference Result 7285 states and 10750 transitions. [2022-10-15 22:12:06,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:12:06,096 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2022-10-15 22:12:06,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:06,114 INFO L225 Difference]: With dead ends: 7285 [2022-10-15 22:12:06,114 INFO L226 Difference]: Without dead ends: 7281 [2022-10-15 22:12:06,118 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:12:06,119 INFO L413 NwaCegarLoop]: 1104 mSDtfsCounter, 2510 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 1299 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2510 SdHoareTripleChecker+Valid, 2429 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1299 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:06,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2510 Valid, 2429 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1299 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 22:12:06,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7281 states. [2022-10-15 22:12:06,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7281 to 7267. [2022-10-15 22:12:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7267 states, 7204 states have (on average 1.4894503053858967) internal successors, (10730), 7266 states have internal predecessors, (10730), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:06,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7267 states to 7267 states and 10730 transitions. [2022-10-15 22:12:06,656 INFO L78 Accepts]: Start accepts. Automaton has 7267 states and 10730 transitions. Word has length 74 [2022-10-15 22:12:06,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:06,656 INFO L495 AbstractCegarLoop]: Abstraction has 7267 states and 10730 transitions. [2022-10-15 22:12:06,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.5) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:06,657 INFO L276 IsEmpty]: Start isEmpty. Operand 7267 states and 10730 transitions. [2022-10-15 22:12:06,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 22:12:06,660 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:06,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:06,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-10-15 22:12:06,660 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr71ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:06,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:06,661 INFO L85 PathProgramCache]: Analyzing trace with hash 847278225, now seen corresponding path program 1 times [2022-10-15 22:12:06,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:06,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676315552] [2022-10-15 22:12:06,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:06,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:06,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:06,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:06,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:06,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676315552] [2022-10-15 22:12:06,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676315552] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:06,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:06,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:12:06,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875079133] [2022-10-15 22:12:06,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:06,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:12:06,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:06,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:12:06,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:12:06,792 INFO L87 Difference]: Start difference. First operand 7267 states and 10730 transitions. Second operand has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:08,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:08,213 INFO L93 Difference]: Finished difference Result 7275 states and 10730 transitions. [2022-10-15 22:12:08,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:12:08,213 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-10-15 22:12:08,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:08,229 INFO L225 Difference]: With dead ends: 7275 [2022-10-15 22:12:08,230 INFO L226 Difference]: Without dead ends: 7270 [2022-10-15 22:12:08,233 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 [2022-10-15 22:12:08,233 INFO L413 NwaCegarLoop]: 992 mSDtfsCounter, 1467 mSDsluCounter, 794 mSDsCounter, 0 mSdLazyCounter, 968 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1467 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 968 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:08,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1467 Valid, 1786 Invalid, 978 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 968 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 22:12:08,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7270 states. [2022-10-15 22:12:08,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7270 to 6938. [2022-10-15 22:12:08,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6938 states, 6880 states have (on average 1.4809593023255814) internal successors, (10189), 6937 states have internal predecessors, (10189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:08,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6938 states to 6938 states and 10189 transitions. [2022-10-15 22:12:08,779 INFO L78 Accepts]: Start accepts. Automaton has 6938 states and 10189 transitions. Word has length 75 [2022-10-15 22:12:08,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:08,780 INFO L495 AbstractCegarLoop]: Abstraction has 6938 states and 10189 transitions. [2022-10-15 22:12:08,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.0) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:08,780 INFO L276 IsEmpty]: Start isEmpty. Operand 6938 states and 10189 transitions. [2022-10-15 22:12:08,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-10-15 22:12:08,783 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:08,783 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:08,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-15 22:12:08,784 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:08,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:08,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1436921209, now seen corresponding path program 1 times [2022-10-15 22:12:08,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:08,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243051107] [2022-10-15 22:12:08,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:08,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:08,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:08,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:08,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243051107] [2022-10-15 22:12:08,954 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243051107] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:08,954 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:08,954 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:12:08,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583832957] [2022-10-15 22:12:08,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:08,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:12:08,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:08,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:12:08,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:12:08,956 INFO L87 Difference]: Start difference. First operand 6938 states and 10189 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:10,455 INFO L93 Difference]: Finished difference Result 9566 states and 14253 transitions. [2022-10-15 22:12:10,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:12:10,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2022-10-15 22:12:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:10,483 INFO L225 Difference]: With dead ends: 9566 [2022-10-15 22:12:10,483 INFO L226 Difference]: Without dead ends: 9562 [2022-10-15 22:12:10,488 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:12:10,489 INFO L413 NwaCegarLoop]: 987 mSDtfsCounter, 2880 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2880 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:10,489 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2880 Valid, 2013 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 22:12:10,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9562 states. [2022-10-15 22:12:11,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9562 to 8892. [2022-10-15 22:12:11,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8892 states, 8836 states have (on average 1.4926437301946582) internal successors, (13189), 8891 states have internal predecessors, (13189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8892 states to 8892 states and 13189 transitions. [2022-10-15 22:12:11,186 INFO L78 Accepts]: Start accepts. Automaton has 8892 states and 13189 transitions. Word has length 75 [2022-10-15 22:12:11,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:11,187 INFO L495 AbstractCegarLoop]: Abstraction has 8892 states and 13189 transitions. [2022-10-15 22:12:11,187 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:11,187 INFO L276 IsEmpty]: Start isEmpty. Operand 8892 states and 13189 transitions. [2022-10-15 22:12:11,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 22:12:11,190 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:11,190 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:11,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 22:12:11,191 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr88ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:11,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:11,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1250934118, now seen corresponding path program 1 times [2022-10-15 22:12:11,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:11,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442030503] [2022-10-15 22:12:11,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:11,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:11,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:11,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:11,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:11,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442030503] [2022-10-15 22:12:11,315 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442030503] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:11,315 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:11,315 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:12:11,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661860173] [2022-10-15 22:12:11,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:11,316 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:12:11,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:11,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:12:11,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:12:11,317 INFO L87 Difference]: Start difference. First operand 8892 states and 13189 transitions. Second operand has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:12,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:12,410 INFO L93 Difference]: Finished difference Result 10212 states and 15237 transitions. [2022-10-15 22:12:12,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:12:12,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-10-15 22:12:12,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:12,430 INFO L225 Difference]: With dead ends: 10212 [2022-10-15 22:12:12,430 INFO L226 Difference]: Without dead ends: 10205 [2022-10-15 22:12:12,434 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 [2022-10-15 22:12:12,435 INFO L413 NwaCegarLoop]: 1526 mSDtfsCounter, 547 mSDsluCounter, 946 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 547 SdHoareTripleChecker+Valid, 2472 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:12,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [547 Valid, 2472 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 22:12:12,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10205 states. [2022-10-15 22:12:13,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10205 to 8259. [2022-10-15 22:12:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8259 states, 8208 states have (on average 1.4859892787524367) internal successors, (12197), 8258 states have internal predecessors, (12197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:13,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8259 states to 8259 states and 12197 transitions. [2022-10-15 22:12:13,258 INFO L78 Accepts]: Start accepts. Automaton has 8259 states and 12197 transitions. Word has length 76 [2022-10-15 22:12:13,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:13,259 INFO L495 AbstractCegarLoop]: Abstraction has 8259 states and 12197 transitions. [2022-10-15 22:12:13,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 25.333333333333332) internal successors, (76), 4 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:13,259 INFO L276 IsEmpty]: Start isEmpty. Operand 8259 states and 12197 transitions. [2022-10-15 22:12:13,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 22:12:13,263 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:13,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:13,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 22:12:13,263 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr72ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:13,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:13,264 INFO L85 PathProgramCache]: Analyzing trace with hash 495822173, now seen corresponding path program 1 times [2022-10-15 22:12:13,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:13,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631318216] [2022-10-15 22:12:13,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:13,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:13,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:13,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:13,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631318216] [2022-10-15 22:12:13,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631318216] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:13,414 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:13,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:12:13,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327014503] [2022-10-15 22:12:13,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:13,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:12:13,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:13,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:12:13,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:12:13,416 INFO L87 Difference]: Start difference. First operand 8259 states and 12197 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:15,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:15,031 INFO L93 Difference]: Finished difference Result 10233 states and 15221 transitions. [2022-10-15 22:12:15,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:12:15,032 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-10-15 22:12:15,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:15,046 INFO L225 Difference]: With dead ends: 10233 [2022-10-15 22:12:15,047 INFO L226 Difference]: Without dead ends: 10229 [2022-10-15 22:12:15,050 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:12:15,051 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 2595 mSDsluCounter, 1266 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2595 SdHoareTripleChecker+Valid, 2377 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:15,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2595 Valid, 2377 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 22:12:15,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10229 states. [2022-10-15 22:12:15,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10229 to 8909. [2022-10-15 22:12:15,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8909 states, 8860 states have (on average 1.4881489841986455) internal successors, (13185), 8908 states have internal predecessors, (13185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8909 states to 8909 states and 13185 transitions. [2022-10-15 22:12:15,801 INFO L78 Accepts]: Start accepts. Automaton has 8909 states and 13185 transitions. Word has length 76 [2022-10-15 22:12:15,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:15,801 INFO L495 AbstractCegarLoop]: Abstraction has 8909 states and 13185 transitions. [2022-10-15 22:12:15,801 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:15,802 INFO L276 IsEmpty]: Start isEmpty. Operand 8909 states and 13185 transitions. [2022-10-15 22:12:15,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 22:12:15,805 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:15,805 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:15,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 22:12:15,806 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:15,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:15,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1594885320, now seen corresponding path program 1 times [2022-10-15 22:12:15,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:15,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117229861] [2022-10-15 22:12:15,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:15,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:15,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:15,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:15,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117229861] [2022-10-15 22:12:15,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117229861] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:15,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:15,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:12:15,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015363798] [2022-10-15 22:12:15,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:15,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:12:15,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:15,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:12:15,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:12:15,960 INFO L87 Difference]: Start difference. First operand 8909 states and 13185 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:17,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:17,780 INFO L93 Difference]: Finished difference Result 15779 states and 23681 transitions. [2022-10-15 22:12:17,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:12:17,780 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-10-15 22:12:17,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:17,797 INFO L225 Difference]: With dead ends: 15779 [2022-10-15 22:12:17,798 INFO L226 Difference]: Without dead ends: 10200 [2022-10-15 22:12:17,808 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 22:12:17,809 INFO L413 NwaCegarLoop]: 1094 mSDtfsCounter, 3869 mSDsluCounter, 1436 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3869 SdHoareTripleChecker+Valid, 2530 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:17,809 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3869 Valid, 2530 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 22:12:17,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10200 states. [2022-10-15 22:12:18,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10200 to 9560. [2022-10-15 22:12:18,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9560 states, 9512 states have (on average 1.48580740117746) internal successors, (14133), 9559 states have internal predecessors, (14133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:18,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9560 states to 9560 states and 14133 transitions. [2022-10-15 22:12:18,509 INFO L78 Accepts]: Start accepts. Automaton has 9560 states and 14133 transitions. Word has length 76 [2022-10-15 22:12:18,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:18,510 INFO L495 AbstractCegarLoop]: Abstraction has 9560 states and 14133 transitions. [2022-10-15 22:12:18,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:18,510 INFO L276 IsEmpty]: Start isEmpty. Operand 9560 states and 14133 transitions. [2022-10-15 22:12:18,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 22:12:18,514 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:18,514 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:18,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-10-15 22:12:18,515 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:18,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:18,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1247356358, now seen corresponding path program 1 times [2022-10-15 22:12:18,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:18,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715244038] [2022-10-15 22:12:18,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:18,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:18,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:18,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:18,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:18,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715244038] [2022-10-15 22:12:18,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715244038] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:18,603 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:18,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:12:18,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60287574] [2022-10-15 22:12:18,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:18,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:12:18,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:18,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:12:18,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:12:18,606 INFO L87 Difference]: Start difference. First operand 9560 states and 14133 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:19,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:19,945 INFO L93 Difference]: Finished difference Result 25849 states and 38442 transitions. [2022-10-15 22:12:19,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:12:19,946 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-10-15 22:12:19,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:19,970 INFO L225 Difference]: With dead ends: 25849 [2022-10-15 22:12:19,970 INFO L226 Difference]: Without dead ends: 17288 [2022-10-15 22:12:19,985 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:12:19,986 INFO L413 NwaCegarLoop]: 1639 mSDtfsCounter, 928 mSDsluCounter, 944 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 928 SdHoareTripleChecker+Valid, 2583 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:19,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [928 Valid, 2583 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:12:20,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17288 states. [2022-10-15 22:12:21,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17288 to 16265. [2022-10-15 22:12:21,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16265 states, 16217 states have (on average 1.47092557193069) internal successors, (23854), 16264 states have internal predecessors, (23854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:21,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16265 states to 16265 states and 23854 transitions. [2022-10-15 22:12:21,377 INFO L78 Accepts]: Start accepts. Automaton has 16265 states and 23854 transitions. Word has length 76 [2022-10-15 22:12:21,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:21,378 INFO L495 AbstractCegarLoop]: Abstraction has 16265 states and 23854 transitions. [2022-10-15 22:12:21,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 16265 states and 23854 transitions. [2022-10-15 22:12:21,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 22:12:21,382 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:21,382 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:21,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-10-15 22:12:21,382 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:21,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:21,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1194836230, now seen corresponding path program 1 times [2022-10-15 22:12:21,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:21,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836342973] [2022-10-15 22:12:21,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:21,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:21,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:21,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:21,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:21,545 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836342973] [2022-10-15 22:12:21,545 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836342973] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:21,545 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:21,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:12:21,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562681124] [2022-10-15 22:12:21,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:21,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:12:21,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:21,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:12:21,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:12:21,547 INFO L87 Difference]: Start difference. First operand 16265 states and 23854 transitions. Second operand has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:23,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:23,625 INFO L93 Difference]: Finished difference Result 18447 states and 27083 transitions. [2022-10-15 22:12:23,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:12:23,626 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-10-15 22:12:23,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:23,658 INFO L225 Difference]: With dead ends: 18447 [2022-10-15 22:12:23,658 INFO L226 Difference]: Without dead ends: 18444 [2022-10-15 22:12:23,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:12:23,665 INFO L413 NwaCegarLoop]: 1197 mSDtfsCounter, 1450 mSDsluCounter, 1188 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1450 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:23,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1450 Valid, 2385 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 22:12:23,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18444 states. [2022-10-15 22:12:25,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18444 to 16779. [2022-10-15 22:12:25,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16779 states, 16732 states have (on average 1.4707745637102558) internal successors, (24609), 16778 states have internal predecessors, (24609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:25,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16779 states to 16779 states and 24609 transitions. [2022-10-15 22:12:25,136 INFO L78 Accepts]: Start accepts. Automaton has 16779 states and 24609 transitions. Word has length 76 [2022-10-15 22:12:25,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:25,136 INFO L495 AbstractCegarLoop]: Abstraction has 16779 states and 24609 transitions. [2022-10-15 22:12:25,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.0) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:25,137 INFO L276 IsEmpty]: Start isEmpty. Operand 16779 states and 24609 transitions. [2022-10-15 22:12:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-10-15 22:12:25,141 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:25,142 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:25,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-10-15 22:12:25,142 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr44ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:25,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1455986473, now seen corresponding path program 1 times [2022-10-15 22:12:25,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:25,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447424356] [2022-10-15 22:12:25,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:25,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:25,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:25,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:25,304 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447424356] [2022-10-15 22:12:25,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447424356] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:25,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:25,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:12:25,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490315878] [2022-10-15 22:12:25,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:25,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:12:25,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:25,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:12:25,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:12:25,306 INFO L87 Difference]: Start difference. First operand 16779 states and 24609 transitions. Second operand has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:27,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:27,949 INFO L93 Difference]: Finished difference Result 29726 states and 44111 transitions. [2022-10-15 22:12:27,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 22:12:27,949 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2022-10-15 22:12:27,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:27,984 INFO L225 Difference]: With dead ends: 29726 [2022-10-15 22:12:27,984 INFO L226 Difference]: Without dead ends: 18441 [2022-10-15 22:12:28,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2022-10-15 22:12:28,001 INFO L413 NwaCegarLoop]: 1098 mSDtfsCounter, 3736 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 1279 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3736 SdHoareTripleChecker+Valid, 2655 SdHoareTripleChecker+Invalid, 1286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:28,002 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3736 Valid, 2655 Invalid, 1286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1279 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-15 22:12:28,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18441 states. [2022-10-15 22:12:29,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18441 to 17994. [2022-10-15 22:12:29,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17994 states, 17948 states have (on average 1.4680744372632049) internal successors, (26349), 17993 states have internal predecessors, (26349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:29,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17994 states to 17994 states and 26349 transitions. [2022-10-15 22:12:29,516 INFO L78 Accepts]: Start accepts. Automaton has 17994 states and 26349 transitions. Word has length 76 [2022-10-15 22:12:29,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:29,516 INFO L495 AbstractCegarLoop]: Abstraction has 17994 states and 26349 transitions. [2022-10-15 22:12:29,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 15.2) internal successors, (76), 6 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:29,517 INFO L276 IsEmpty]: Start isEmpty. Operand 17994 states and 26349 transitions. [2022-10-15 22:12:29,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 22:12:29,522 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:29,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:29,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-10-15 22:12:29,522 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr73ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:29,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:29,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1809380845, now seen corresponding path program 1 times [2022-10-15 22:12:29,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:29,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733626076] [2022-10-15 22:12:29,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:29,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:29,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:29,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:29,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:29,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733626076] [2022-10-15 22:12:29,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733626076] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:29,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:29,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:12:29,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252074888] [2022-10-15 22:12:29,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:29,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:12:29,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:29,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:12:29,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:12:29,677 INFO L87 Difference]: Start difference. First operand 17994 states and 26349 transitions. Second operand has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:32,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:12:32,441 INFO L93 Difference]: Finished difference Result 24086 states and 35613 transitions. [2022-10-15 22:12:32,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:12:32,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 77 [2022-10-15 22:12:32,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:12:32,473 INFO L225 Difference]: With dead ends: 24086 [2022-10-15 22:12:32,473 INFO L226 Difference]: Without dead ends: 24081 [2022-10-15 22:12:32,478 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-10-15 22:12:32,479 INFO L413 NwaCegarLoop]: 993 mSDtfsCounter, 2842 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 1109 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2842 SdHoareTripleChecker+Valid, 2002 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 1109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-15 22:12:32,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2842 Valid, 2002 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 1109 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-10-15 22:12:32,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24081 states. [2022-10-15 22:12:34,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24081 to 22733. [2022-10-15 22:12:34,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22733 states, 22690 states have (on average 1.4761128250330542) internal successors, (33493), 22732 states have internal predecessors, (33493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:34,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22733 states to 22733 states and 33493 transitions. [2022-10-15 22:12:34,564 INFO L78 Accepts]: Start accepts. Automaton has 22733 states and 33493 transitions. Word has length 77 [2022-10-15 22:12:34,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:12:34,565 INFO L495 AbstractCegarLoop]: Abstraction has 22733 states and 33493 transitions. [2022-10-15 22:12:34,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 19.25) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:12:34,565 INFO L276 IsEmpty]: Start isEmpty. Operand 22733 states and 33493 transitions. [2022-10-15 22:12:34,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-15 22:12:34,570 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:12:34,570 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:12:34,570 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-10-15 22:12:34,570 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 397 more)] === [2022-10-15 22:12:34,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:12:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash -2098161829, now seen corresponding path program 1 times [2022-10-15 22:12:34,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:12:34,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [791518917] [2022-10-15 22:12:34,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:12:34,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:12:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:12:34,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:12:34,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:12:34,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [791518917] [2022-10-15 22:12:34,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [791518917] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:12:34,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:12:34,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-15 22:12:34,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461129244] [2022-10-15 22:12:34,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:12:34,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 22:12:34,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:12:34,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 22:12:34,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 22:12:34,725 INFO L87 Difference]: Start difference. First operand 22733 states and 33493 transitions. Second operand has 6 states, 5 states have (on average 15.4) internal successors, (77), 6 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)