/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/systemc/token_ring.07.cil-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:02:53,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:02:53,672 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:02:53,715 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:02:53,716 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:02:53,717 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:02:53,719 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:02:53,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:02:53,731 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:02:53,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:02:53,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:02:53,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:02:53,736 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:02:53,737 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:02:53,738 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:02:53,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:02:53,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:02:53,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:02:53,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:02:53,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:02:53,749 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:02:53,750 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:02:53,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:02:53,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:02:53,757 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-16 17:02:53,758 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-16 17:02:53,758 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-16 17:02:53,759 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-16 17:02:53,760 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-16 17:02:53,761 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-16 17:02:53,762 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-16 17:02:53,763 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-16 17:02:53,764 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-16 17:02:53,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-16 17:02:53,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-16 17:02:53,766 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-16 17:02:53,767 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-16 17:02:53,767 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-16 17:02:53,768 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:02:53,769 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:02:53,770 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:02:53,771 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 [2022-10-16 17:02:53,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:02:53,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:02:53,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:02:53,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:02:53,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:02:53,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:02:53,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:02:53,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:02:53,802 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:02:53,803 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:02:53,803 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:02:53,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:02:53,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:02:53,804 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:02:53,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:02:53,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:02:53,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:02:53,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:02:53,805 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:02:53,805 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:02:53,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:02:53,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:02:53,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:02:53,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:02:53,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:02:53,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:02:53,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:02:53,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:02:53,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:02:53,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:02:53,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:02:53,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:02:53,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:02:53,808 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:02:54,215 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:02:54,247 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:02:54,250 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:02:54,251 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:02:54,255 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:02:54,257 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2022-10-16 17:02:54,348 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f026866b5/000acc6fca164e6c85dd3438f62ede2f/FLAG72df840fd [2022-10-16 17:02:55,032 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:02:55,033 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/token_ring.07.cil-1.c [2022-10-16 17:02:55,066 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f026866b5/000acc6fca164e6c85dd3438f62ede2f/FLAG72df840fd [2022-10-16 17:02:55,350 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f026866b5/000acc6fca164e6c85dd3438f62ede2f [2022-10-16 17:02:55,353 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:02:55,361 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:02:55,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:02:55,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:02:55,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:02:55,373 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:55,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cb4dfd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55, skipping insertion in model container [2022-10-16 17:02:55,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:55,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:02:55,452 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:02:55,694 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/systemc/token_ring.07.cil-1.c[671,684] [2022-10-16 17:02:55,893 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:02:55,905 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:02:55,919 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/systemc/token_ring.07.cil-1.c[671,684] [2022-10-16 17:02:55,970 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:02:55,997 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:02:55,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55 WrapperNode [2022-10-16 17:02:56,002 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:02:56,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:02:56,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:02:56,005 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:02:56,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,028 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,091 INFO L138 Inliner]: procedures = 42, calls = 52, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 579 [2022-10-16 17:02:56,092 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:02:56,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:02:56,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:02:56,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:02:56,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,143 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,148 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,151 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:02:56,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:02:56,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:02:56,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:02:56,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (1/1) ... [2022-10-16 17:02:56,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:02:56,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:02:56,204 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) [2022-10-16 17:02:56,222 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 [2022-10-16 17:02:56,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:02:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-10-16 17:02:56,271 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-10-16 17:02:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-10-16 17:02:56,271 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-10-16 17:02:56,271 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-10-16 17:02:56,272 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-10-16 17:02:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-10-16 17:02:56,272 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-10-16 17:02:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-10-16 17:02:56,272 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-10-16 17:02:56,272 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:02:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-10-16 17:02:56,273 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-10-16 17:02:56,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:02:56,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:02:56,462 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:02:56,465 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:02:57,431 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:02:57,442 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:02:57,443 INFO L300 CfgBuilder]: Removed 10 assume(true) statements. [2022-10-16 17:02:57,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:02:57 BoogieIcfgContainer [2022-10-16 17:02:57,446 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:02:57,448 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:02:57,448 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:02:57,452 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:02:57,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:02:55" (1/3) ... [2022-10-16 17:02:57,453 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79507265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:02:57, skipping insertion in model container [2022-10-16 17:02:57,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:02:55" (2/3) ... [2022-10-16 17:02:57,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79507265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:02:57, skipping insertion in model container [2022-10-16 17:02:57,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:02:57" (3/3) ... [2022-10-16 17:02:57,456 INFO L112 eAbstractionObserver]: Analyzing ICFG token_ring.07.cil-1.c [2022-10-16 17:02:57,478 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:02:57,478 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2022-10-16 17:02:57,546 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:02:57,555 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;@20ac6706, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:02:57,555 INFO L358 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2022-10-16 17:02:57,562 INFO L276 IsEmpty]: Start isEmpty. Operand has 281 states, 237 states have (on average 1.6793248945147679) internal successors, (398), 254 states have internal predecessors, (398), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-10-16 17:02:57,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:02:57,579 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:02:57,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:02:57,580 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:02:57,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:02:57,587 INFO L85 PathProgramCache]: Analyzing trace with hash 136042518, now seen corresponding path program 1 times [2022-10-16 17:02:57,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:02:57,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011432515] [2022-10-16 17:02:57,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:02:57,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:02:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:02:58,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:02:58,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:02:58,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:02:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:02:58,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:02:58,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:02:58,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:02:58,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:02:58,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:02:58,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:02:58,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:02:58,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:02:58,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011432515] [2022-10-16 17:02:58,257 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011432515] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:02:58,257 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:02:58,258 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 17:02:58,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635599839] [2022-10-16 17:02:58,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:02:58,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:02:58,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:02:58,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:02:58,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:02:58,318 INFO L87 Difference]: Start difference. First operand has 281 states, 237 states have (on average 1.6793248945147679) internal successors, (398), 254 states have internal predecessors, (398), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:02:59,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:02:59,644 INFO L93 Difference]: Finished difference Result 640 states and 1017 transitions. [2022-10-16 17:02:59,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 17:02:59,648 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:02:59,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:02:59,666 INFO L225 Difference]: With dead ends: 640 [2022-10-16 17:02:59,666 INFO L226 Difference]: Without dead ends: 362 [2022-10-16 17:02:59,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-10-16 17:02:59,679 INFO L413 NwaCegarLoop]: 454 mSDtfsCounter, 681 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:02:59,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [700 Valid, 769 Invalid, 508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 17:02:59,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-10-16 17:02:59,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 275. [2022-10-16 17:02:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 232 states have (on average 1.5948275862068966) internal successors, (370), 248 states have internal predecessors, (370), 21 states have call successors, (21), 6 states have call predecessors, (21), 6 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2022-10-16 17:02:59,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 412 transitions. [2022-10-16 17:02:59,799 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 412 transitions. Word has length 121 [2022-10-16 17:02:59,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:02:59,800 INFO L495 AbstractCegarLoop]: Abstraction has 275 states and 412 transitions. [2022-10-16 17:02:59,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 3 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:02:59,800 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 412 transitions. [2022-10-16 17:02:59,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:02:59,804 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:02:59,805 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:02:59,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:02:59,805 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:02:59,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:02:59,806 INFO L85 PathProgramCache]: Analyzing trace with hash -335313832, now seen corresponding path program 1 times [2022-10-16 17:02:59,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:02:59,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846673363] [2022-10-16 17:02:59,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:02:59,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:02:59,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:02:59,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:02:59,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:00,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:00,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:00,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:00,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:00,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:00,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:00,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:00,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:00,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846673363] [2022-10-16 17:03:00,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846673363] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:00,159 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:00,159 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 17:03:00,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472531272] [2022-10-16 17:03:00,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:00,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 17:03:00,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:00,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 17:03:00,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 17:03:00,163 INFO L87 Difference]: Start difference. First operand 275 states and 412 transitions. Second operand has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:02,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:02,178 INFO L93 Difference]: Finished difference Result 977 states and 1505 transitions. [2022-10-16 17:03:02,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 17:03:02,179 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:02,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:02,187 INFO L225 Difference]: With dead ends: 977 [2022-10-16 17:03:02,187 INFO L226 Difference]: Without dead ends: 717 [2022-10-16 17:03:02,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:03:02,191 INFO L413 NwaCegarLoop]: 479 mSDtfsCounter, 1004 mSDsluCounter, 721 mSDsCounter, 0 mSdLazyCounter, 1282 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 1381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 1282 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:02,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 1200 Invalid, 1381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 1282 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-10-16 17:03:02,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2022-10-16 17:03:02,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 530. [2022-10-16 17:03:02,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 530 states, 464 states have (on average 1.605603448275862) internal successors, (745), 481 states have internal predecessors, (745), 37 states have call successors, (37), 12 states have call predecessors, (37), 13 states have return successors, (40), 37 states have call predecessors, (40), 37 states have call successors, (40) [2022-10-16 17:03:02,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 530 states and 822 transitions. [2022-10-16 17:03:02,286 INFO L78 Accepts]: Start accepts. Automaton has 530 states and 822 transitions. Word has length 121 [2022-10-16 17:03:02,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:02,286 INFO L495 AbstractCegarLoop]: Abstraction has 530 states and 822 transitions. [2022-10-16 17:03:02,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.5) internal successors, (111), 4 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:02,287 INFO L276 IsEmpty]: Start isEmpty. Operand 530 states and 822 transitions. [2022-10-16 17:03:02,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:02,290 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:02,290 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:02,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 17:03:02,291 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:02,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash -1190003116, now seen corresponding path program 1 times [2022-10-16 17:03:02,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:02,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813659872] [2022-10-16 17:03:02,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:02,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:02,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:02,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:02,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:02,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:02,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:02,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:02,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:02,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:02,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:02,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:02,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:02,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813659872] [2022-10-16 17:03:02,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813659872] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:02,742 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:02,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:02,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933834054] [2022-10-16 17:03:02,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:02,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:02,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:02,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:02,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:02,749 INFO L87 Difference]: Start difference. First operand 530 states and 822 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:05,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:05,131 INFO L93 Difference]: Finished difference Result 1585 states and 2488 transitions. [2022-10-16 17:03:05,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:05,132 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:05,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:05,143 INFO L225 Difference]: With dead ends: 1585 [2022-10-16 17:03:05,143 INFO L226 Difference]: Without dead ends: 1070 [2022-10-16 17:03:05,146 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:05,153 INFO L413 NwaCegarLoop]: 689 mSDtfsCounter, 1017 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 1995 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 2068 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1995 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:05,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1031 Valid, 2128 Invalid, 2068 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 1995 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 17:03:05,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2022-10-16 17:03:05,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 769. [2022-10-16 17:03:05,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 769 states, 680 states have (on average 1.6) internal successors, (1088), 698 states have internal predecessors, (1088), 53 states have call successors, (53), 18 states have call predecessors, (53), 20 states have return successors, (58), 54 states have call predecessors, (58), 53 states have call successors, (58) [2022-10-16 17:03:05,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 769 states to 769 states and 1199 transitions. [2022-10-16 17:03:05,307 INFO L78 Accepts]: Start accepts. Automaton has 769 states and 1199 transitions. Word has length 121 [2022-10-16 17:03:05,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:05,308 INFO L495 AbstractCegarLoop]: Abstraction has 769 states and 1199 transitions. [2022-10-16 17:03:05,309 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:05,309 INFO L276 IsEmpty]: Start isEmpty. Operand 769 states and 1199 transitions. [2022-10-16 17:03:05,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:05,318 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:05,318 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:05,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 17:03:05,319 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:05,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:05,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1238255506, now seen corresponding path program 1 times [2022-10-16 17:03:05,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:05,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208205871] [2022-10-16 17:03:05,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:05,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:05,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:05,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:05,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:05,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208205871] [2022-10-16 17:03:05,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208205871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:05,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:05,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:05,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528428261] [2022-10-16 17:03:05,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:05,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:05,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:05,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:05,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:05,644 INFO L87 Difference]: Start difference. First operand 769 states and 1199 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:08,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:08,132 INFO L93 Difference]: Finished difference Result 2479 states and 3921 transitions. [2022-10-16 17:03:08,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:08,133 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:08,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:08,144 INFO L225 Difference]: With dead ends: 2479 [2022-10-16 17:03:08,145 INFO L226 Difference]: Without dead ends: 1725 [2022-10-16 17:03:08,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:08,149 INFO L413 NwaCegarLoop]: 682 mSDtfsCounter, 1013 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1027 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 2049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:08,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1027 Valid, 2121 Invalid, 2049 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 17:03:08,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2022-10-16 17:03:08,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1250. [2022-10-16 17:03:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1250 states, 1115 states have (on average 1.5955156950672646) internal successors, (1779), 1135 states have internal predecessors, (1779), 85 states have call successors, (85), 30 states have call predecessors, (85), 34 states have return successors, (98), 88 states have call predecessors, (98), 85 states have call successors, (98) [2022-10-16 17:03:08,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1962 transitions. [2022-10-16 17:03:08,296 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1962 transitions. Word has length 121 [2022-10-16 17:03:08,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:08,297 INFO L495 AbstractCegarLoop]: Abstraction has 1250 states and 1962 transitions. [2022-10-16 17:03:08,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:08,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1962 transitions. [2022-10-16 17:03:08,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:08,300 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:08,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:08,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:03:08,301 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:08,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:08,302 INFO L85 PathProgramCache]: Analyzing trace with hash -68886892, now seen corresponding path program 1 times [2022-10-16 17:03:08,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:08,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266559841] [2022-10-16 17:03:08,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:08,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:08,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:08,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:08,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:08,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:08,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:08,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:08,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:08,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:08,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:08,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:08,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:08,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266559841] [2022-10-16 17:03:08,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266559841] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:08,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:08,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:08,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128620851] [2022-10-16 17:03:08,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:08,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:08,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:08,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:08,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:08,517 INFO L87 Difference]: Start difference. First operand 1250 states and 1962 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:11,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:11,198 INFO L93 Difference]: Finished difference Result 4210 states and 6688 transitions. [2022-10-16 17:03:11,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:11,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:11,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:11,222 INFO L225 Difference]: With dead ends: 4210 [2022-10-16 17:03:11,222 INFO L226 Difference]: Without dead ends: 2975 [2022-10-16 17:03:11,229 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:11,231 INFO L413 NwaCegarLoop]: 677 mSDtfsCounter, 1012 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 1967 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1026 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:11,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1026 Valid, 2116 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1967 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 17:03:11,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2975 states. [2022-10-16 17:03:11,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2975 to 2215. [2022-10-16 17:03:11,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2215 states, 1988 states have (on average 1.5920523138832998) internal successors, (3165), 2012 states have internal predecessors, (3165), 149 states have call successors, (149), 54 states have call predecessors, (149), 62 states have return successors, (184), 156 states have call predecessors, (184), 149 states have call successors, (184) [2022-10-16 17:03:11,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2215 states to 2215 states and 3498 transitions. [2022-10-16 17:03:11,557 INFO L78 Accepts]: Start accepts. Automaton has 2215 states and 3498 transitions. Word has length 121 [2022-10-16 17:03:11,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:11,557 INFO L495 AbstractCegarLoop]: Abstraction has 2215 states and 3498 transitions. [2022-10-16 17:03:11,558 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:11,558 INFO L276 IsEmpty]: Start isEmpty. Operand 2215 states and 3498 transitions. [2022-10-16 17:03:11,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:11,561 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:11,561 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:11,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 17:03:11,562 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:11,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:11,563 INFO L85 PathProgramCache]: Analyzing trace with hash 1828609874, now seen corresponding path program 1 times [2022-10-16 17:03:11,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:11,563 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96133532] [2022-10-16 17:03:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:11,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:11,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:11,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:11,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:11,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:11,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:11,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:11,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:11,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:11,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:11,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96133532] [2022-10-16 17:03:11,786 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96133532] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:11,786 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:11,786 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:11,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397290636] [2022-10-16 17:03:11,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:11,787 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:11,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:11,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:11,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:11,789 INFO L87 Difference]: Start difference. First operand 2215 states and 3498 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:14,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:14,814 INFO L93 Difference]: Finished difference Result 7673 states and 12242 transitions. [2022-10-16 17:03:14,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:14,815 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:14,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:14,854 INFO L225 Difference]: With dead ends: 7673 [2022-10-16 17:03:14,854 INFO L226 Difference]: Without dead ends: 5473 [2022-10-16 17:03:14,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:14,867 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 1011 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1025 SdHoareTripleChecker+Valid, 2111 SdHoareTripleChecker+Invalid, 2033 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:14,867 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1025 Valid, 2111 Invalid, 2033 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 17:03:14,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5473 states. [2022-10-16 17:03:15,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5473 to 4152. [2022-10-16 17:03:15,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4152 states, 3741 states have (on average 1.5896819032344294) internal successors, (5947), 3773 states have internal predecessors, (5947), 277 states have call successors, (277), 102 states have call predecessors, (277), 118 states have return successors, (374), 292 states have call predecessors, (374), 277 states have call successors, (374) [2022-10-16 17:03:15,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4152 states to 4152 states and 6598 transitions. [2022-10-16 17:03:15,429 INFO L78 Accepts]: Start accepts. Automaton has 4152 states and 6598 transitions. Word has length 121 [2022-10-16 17:03:15,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:15,429 INFO L495 AbstractCegarLoop]: Abstraction has 4152 states and 6598 transitions. [2022-10-16 17:03:15,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:15,430 INFO L276 IsEmpty]: Start isEmpty. Operand 4152 states and 6598 transitions. [2022-10-16 17:03:15,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:15,435 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:15,435 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:15,435 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 17:03:15,436 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:15,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:15,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1435316524, now seen corresponding path program 1 times [2022-10-16 17:03:15,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:15,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898146967] [2022-10-16 17:03:15,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:15,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:15,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:15,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:15,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:15,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:15,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:15,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:15,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:15,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:15,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:15,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:15,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898146967] [2022-10-16 17:03:15,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1898146967] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:15,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:15,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:15,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598206360] [2022-10-16 17:03:15,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:15,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:15,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:15,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:15,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:15,647 INFO L87 Difference]: Start difference. First operand 4152 states and 6598 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:18,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:18,943 INFO L93 Difference]: Finished difference Result 14600 states and 23412 transitions. [2022-10-16 17:03:18,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:18,945 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:18,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:19,026 INFO L225 Difference]: With dead ends: 14600 [2022-10-16 17:03:19,027 INFO L226 Difference]: Without dead ends: 10463 [2022-10-16 17:03:19,052 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:19,053 INFO L413 NwaCegarLoop]: 485 mSDtfsCounter, 1069 mSDsluCounter, 924 mSDsCounter, 0 mSdLazyCounter, 1737 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1083 SdHoareTripleChecker+Valid, 1409 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:19,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1083 Valid, 1409 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1737 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 17:03:19,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10463 states. [2022-10-16 17:03:20,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10463 to 8041. [2022-10-16 17:03:20,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8041 states, 7262 states have (on average 1.5881299917378133) internal successors, (11533), 7310 states have internal predecessors, (11533), 533 states have call successors, (533), 198 states have call predecessors, (533), 230 states have return successors, (808), 564 states have call predecessors, (808), 533 states have call successors, (808) [2022-10-16 17:03:20,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8041 states to 8041 states and 12874 transitions. [2022-10-16 17:03:20,308 INFO L78 Accepts]: Start accepts. Automaton has 8041 states and 12874 transitions. Word has length 121 [2022-10-16 17:03:20,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:20,308 INFO L495 AbstractCegarLoop]: Abstraction has 8041 states and 12874 transitions. [2022-10-16 17:03:20,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:20,309 INFO L276 IsEmpty]: Start isEmpty. Operand 8041 states and 12874 transitions. [2022-10-16 17:03:20,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:20,317 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:20,317 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:20,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:03:20,318 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:20,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:20,319 INFO L85 PathProgramCache]: Analyzing trace with hash 953247506, now seen corresponding path program 1 times [2022-10-16 17:03:20,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:20,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796893941] [2022-10-16 17:03:20,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:20,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:20,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:20,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:20,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:20,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:20,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:20,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:20,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:20,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:20,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:20,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:20,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:20,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:20,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796893941] [2022-10-16 17:03:20,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796893941] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:20,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:20,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:20,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58238663] [2022-10-16 17:03:20,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:20,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:20,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:20,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:20,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:20,556 INFO L87 Difference]: Start difference. First operand 8041 states and 12874 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:24,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:24,884 INFO L93 Difference]: Finished difference Result 28455 states and 45946 transitions. [2022-10-16 17:03:24,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:03:24,885 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:24,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:25,001 INFO L225 Difference]: With dead ends: 28455 [2022-10-16 17:03:25,001 INFO L226 Difference]: Without dead ends: 20429 [2022-10-16 17:03:25,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-10-16 17:03:25,050 INFO L413 NwaCegarLoop]: 662 mSDtfsCounter, 1009 mSDsluCounter, 1439 mSDsCounter, 0 mSdLazyCounter, 1943 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1023 SdHoareTripleChecker+Valid, 2101 SdHoareTripleChecker+Invalid, 2017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1943 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:25,050 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1023 Valid, 2101 Invalid, 2017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1943 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-10-16 17:03:25,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20429 states. [2022-10-16 17:03:27,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20429 to 15850. [2022-10-16 17:03:27,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15850 states, 14335 states have (on average 1.5870945238925707) internal successors, (22751), 14415 states have internal predecessors, (22751), 1045 states have call successors, (1045), 390 states have call predecessors, (1045), 454 states have return successors, (1838), 1108 states have call predecessors, (1838), 1045 states have call successors, (1838) [2022-10-16 17:03:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15850 states to 15850 states and 25634 transitions. [2022-10-16 17:03:27,379 INFO L78 Accepts]: Start accepts. Automaton has 15850 states and 25634 transitions. Word has length 121 [2022-10-16 17:03:27,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:27,379 INFO L495 AbstractCegarLoop]: Abstraction has 15850 states and 25634 transitions. [2022-10-16 17:03:27,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:27,380 INFO L276 IsEmpty]: Start isEmpty. Operand 15850 states and 25634 transitions. [2022-10-16 17:03:27,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:27,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:27,401 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:27,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 17:03:27,402 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:27,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:27,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1740648684, now seen corresponding path program 1 times [2022-10-16 17:03:27,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:27,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917054415] [2022-10-16 17:03:27,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:27,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:27,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:27,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:27,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:27,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:27,645 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917054415] [2022-10-16 17:03:27,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917054415] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:27,646 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:27,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:27,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006658113] [2022-10-16 17:03:27,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:27,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:27,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:27,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:27,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:27,649 INFO L87 Difference]: Start difference. First operand 15850 states and 25634 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:36,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:36,258 INFO L93 Difference]: Finished difference Result 63014 states and 101986 transitions. [2022-10-16 17:03:36,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:03:36,259 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:36,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:36,546 INFO L225 Difference]: With dead ends: 63014 [2022-10-16 17:03:36,548 INFO L226 Difference]: Without dead ends: 47179 [2022-10-16 17:03:36,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:03:36,942 INFO L413 NwaCegarLoop]: 653 mSDtfsCounter, 1302 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1324 SdHoareTripleChecker+Valid, 2084 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:36,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1324 Valid, 2084 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-10-16 17:03:36,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47179 states. [2022-10-16 17:03:40,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47179 to 31275. [2022-10-16 17:03:40,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31275 states, 28352 states have (on average 1.5858140519187358) internal successors, (44961), 28496 states have internal predecessors, (44961), 2005 states have call successors, (2005), 774 states have call predecessors, (2005), 902 states have return successors, (4320), 2132 states have call predecessors, (4320), 2005 states have call successors, (4320) [2022-10-16 17:03:40,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31275 states to 31275 states and 51286 transitions. [2022-10-16 17:03:40,947 INFO L78 Accepts]: Start accepts. Automaton has 31275 states and 51286 transitions. Word has length 121 [2022-10-16 17:03:40,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:03:40,948 INFO L495 AbstractCegarLoop]: Abstraction has 31275 states and 51286 transitions. [2022-10-16 17:03:40,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:40,948 INFO L276 IsEmpty]: Start isEmpty. Operand 31275 states and 51286 transitions. [2022-10-16 17:03:40,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:03:40,977 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:03:40,977 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:03:40,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-16 17:03:40,978 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:03:40,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:03:40,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1497587410, now seen corresponding path program 1 times [2022-10-16 17:03:40,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:03:40,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597343436] [2022-10-16 17:03:40,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:03:40,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:03:40,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:41,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:03:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:41,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:03:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:41,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:03:41,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:41,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:03:41,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:41,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:03:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:03:41,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:03:41,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:03:41,182 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597343436] [2022-10-16 17:03:41,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597343436] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:03:41,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:03:41,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:03:41,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660824306] [2022-10-16 17:03:41,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:03:41,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:03:41,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:03:41,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:03:41,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:03:41,186 INFO L87 Difference]: Start difference. First operand 31275 states and 51286 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:03:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:03:55,543 INFO L93 Difference]: Finished difference Result 121187 states and 199076 transitions. [2022-10-16 17:03:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:03:55,544 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:03:55,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:03:56,091 INFO L225 Difference]: With dead ends: 121187 [2022-10-16 17:03:56,091 INFO L226 Difference]: Without dead ends: 89927 [2022-10-16 17:03:56,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:03:56,574 INFO L413 NwaCegarLoop]: 644 mSDtfsCounter, 1219 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1241 SdHoareTripleChecker+Valid, 2075 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:03:56,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1241 Valid, 2075 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-16 17:03:56,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89927 states. [2022-10-16 17:04:04,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89927 to 62125. [2022-10-16 17:04:04,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62125 states, 56450 states have (on average 1.5856333038086803) internal successors, (89509), 56722 states have internal predecessors, (89509), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2022-10-16 17:04:05,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62125 states to 62125 states and 104048 transitions. [2022-10-16 17:04:05,344 INFO L78 Accepts]: Start accepts. Automaton has 62125 states and 104048 transitions. Word has length 121 [2022-10-16 17:04:05,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:04:05,345 INFO L495 AbstractCegarLoop]: Abstraction has 62125 states and 104048 transitions. [2022-10-16 17:04:05,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 62125 states and 104048 transitions. [2022-10-16 17:04:05,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:04:05,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:04:05,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:04:05,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 17:04:05,402 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:04:05,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:04:05,404 INFO L85 PathProgramCache]: Analyzing trace with hash -121387504, now seen corresponding path program 1 times [2022-10-16 17:04:05,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:04:05,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808824903] [2022-10-16 17:04:05,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:04:05,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:04:05,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:04:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:05,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:04:05,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:05,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:04:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:05,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:04:05,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:05,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:04:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:05,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:04:05,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:04:05,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808824903] [2022-10-16 17:04:05,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808824903] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:04:05,708 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:04:05,708 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:04:05,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768962828] [2022-10-16 17:04:05,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:04:05,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:04:05,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:04:05,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:04:05,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:04:05,711 INFO L87 Difference]: Start difference. First operand 62125 states and 104048 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:17,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:17,871 INFO L93 Difference]: Finished difference Result 141628 states and 242224 transitions. [2022-10-16 17:04:17,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:04:17,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:04:17,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:18,511 INFO L225 Difference]: With dead ends: 141628 [2022-10-16 17:04:18,511 INFO L226 Difference]: Without dead ends: 79518 [2022-10-16 17:04:18,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-10-16 17:04:18,667 INFO L413 NwaCegarLoop]: 403 mSDtfsCounter, 738 mSDsluCounter, 701 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 753 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:18,668 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [753 Valid, 1104 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 895 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 17:04:18,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79518 states. [2022-10-16 17:04:26,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79518 to 62125. [2022-10-16 17:04:26,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62125 states, 56450 states have (on average 1.581080602302923) internal successors, (89252), 56722 states have internal predecessors, (89252), 3861 states have call successors, (3861), 1542 states have call predecessors, (3861), 1798 states have return successors, (10678), 4116 states have call predecessors, (10678), 3861 states have call successors, (10678) [2022-10-16 17:04:26,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62125 states to 62125 states and 103791 transitions. [2022-10-16 17:04:26,668 INFO L78 Accepts]: Start accepts. Automaton has 62125 states and 103791 transitions. Word has length 121 [2022-10-16 17:04:26,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:04:26,668 INFO L495 AbstractCegarLoop]: Abstraction has 62125 states and 103791 transitions. [2022-10-16 17:04:26,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:26,669 INFO L276 IsEmpty]: Start isEmpty. Operand 62125 states and 103791 transitions. [2022-10-16 17:04:26,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:04:26,707 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:04:26,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:04:26,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 17:04:26,708 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:04:26,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:04:26,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1004896494, now seen corresponding path program 1 times [2022-10-16 17:04:26,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:04:26,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037370380] [2022-10-16 17:04:26,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:04:26,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:04:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:26,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:04:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:26,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:04:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:26,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:04:26,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:26,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:04:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:04:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:04:26,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:04:26,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:04:26,888 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037370380] [2022-10-16 17:04:26,888 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037370380] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:04:26,889 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:04:26,889 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:04:26,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113957861] [2022-10-16 17:04:26,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:04:26,889 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:04:26,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:04:26,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:04:26,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:04:26,891 INFO L87 Difference]: Start difference. First operand 62125 states and 103791 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:04:54,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:04:54,104 INFO L93 Difference]: Finished difference Result 232801 states and 390388 transitions. [2022-10-16 17:04:54,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:04:54,106 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:04:54,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:04:55,247 INFO L225 Difference]: With dead ends: 232801 [2022-10-16 17:04:55,247 INFO L226 Difference]: Without dead ends: 170691 [2022-10-16 17:04:55,447 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:04:55,452 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 1031 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 2099 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1044 SdHoareTripleChecker+Valid, 2124 SdHoareTripleChecker+Invalid, 2178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 2099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:04:55,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1044 Valid, 2124 Invalid, 2178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 2099 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-10-16 17:04:55,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170691 states. [2022-10-16 17:05:10,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170691 to 123823. [2022-10-16 17:05:11,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123823 states, 112772 states have (on average 1.5791863228460965) internal successors, (178088), 113300 states have internal predecessors, (178088), 7445 states have call successors, (7445), 3078 states have call predecessors, (7445), 3590 states have return successors, (27640), 7956 states have call predecessors, (27640), 7445 states have call successors, (27640) [2022-10-16 17:05:11,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123823 states to 123823 states and 213173 transitions. [2022-10-16 17:05:11,684 INFO L78 Accepts]: Start accepts. Automaton has 123823 states and 213173 transitions. Word has length 121 [2022-10-16 17:05:11,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:05:11,685 INFO L495 AbstractCegarLoop]: Abstraction has 123823 states and 213173 transitions. [2022-10-16 17:05:11,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:05:11,685 INFO L276 IsEmpty]: Start isEmpty. Operand 123823 states and 213173 transitions. [2022-10-16 17:05:11,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-10-16 17:05:11,765 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:05:11,765 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:05:11,765 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 17:05:11,765 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2022-10-16 17:05:11,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:05:11,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1033396784, now seen corresponding path program 1 times [2022-10-16 17:05:11,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:05:11,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95540154] [2022-10-16 17:05:11,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:05:11,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:05:11,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-16 17:05:11,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2022-10-16 17:05:11,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2022-10-16 17:05:11,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2022-10-16 17:05:11,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2022-10-16 17:05:11,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:05:11,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:05:11,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:05:11,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95540154] [2022-10-16 17:05:11,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95540154] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:05:11,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:05:11,977 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 17:05:11,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983560663] [2022-10-16 17:05:11,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:05:11,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:05:11,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:05:11,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:05:11,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-16 17:05:11,978 INFO L87 Difference]: Start difference. First operand 123823 states and 213173 transitions. Second operand has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-10-16 17:06:04,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:06:04,961 INFO L93 Difference]: Finished difference Result 455009 states and 788988 transitions. [2022-10-16 17:06:04,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:06:04,962 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.857142857142858) internal successors, (111), 5 states have internal predecessors, (111), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 121 [2022-10-16 17:06:04,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:06:07,245 INFO L225 Difference]: With dead ends: 455009 [2022-10-16 17:06:07,245 INFO L226 Difference]: Without dead ends: 331201 [2022-10-16 17:06:07,919 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-10-16 17:06:07,920 INFO L413 NwaCegarLoop]: 628 mSDtfsCounter, 1093 mSDsluCounter, 1431 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 2059 SdHoareTripleChecker+Invalid, 1954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-10-16 17:06:07,920 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 2059 Invalid, 1954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-10-16 17:06:08,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 331201 states.