./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.13.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version eb692b52 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/transmitter.13.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5975f0f3825b3a6653676f33bd69d14e1e58fcf0306bfb5508ab91dc8951d6c4 --- Real Ultimate output --- This is Ultimate 0.2.2-?-eb692b5 [2022-07-19 17:41:47,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-19 17:41:47,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-19 17:41:47,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-19 17:41:47,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-19 17:41:47,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-19 17:41:47,738 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-19 17:41:47,739 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-19 17:41:47,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-19 17:41:47,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-19 17:41:47,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-19 17:41:47,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-19 17:41:47,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-19 17:41:47,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-19 17:41:47,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-19 17:41:47,746 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-19 17:41:47,746 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-19 17:41:47,747 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-19 17:41:47,748 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-19 17:41:47,750 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-19 17:41:47,751 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-19 17:41:47,755 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-19 17:41:47,756 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-19 17:41:47,757 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-19 17:41:47,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-19 17:41:47,760 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-19 17:41:47,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-19 17:41:47,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-19 17:41:47,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-19 17:41:47,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-19 17:41:47,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-19 17:41:47,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-19 17:41:47,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-19 17:41:47,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-19 17:41:47,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-19 17:41:47,769 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-19 17:41:47,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-19 17:41:47,770 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-19 17:41:47,770 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-19 17:41:47,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-19 17:41:47,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-19 17:41:47,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-19 17:41:47,772 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-19 17:41:47,794 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-19 17:41:47,794 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-19 17:41:47,795 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-19 17:41:47,795 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-19 17:41:47,796 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-19 17:41:47,796 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-19 17:41:47,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-19 17:41:47,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-19 17:41:47,797 INFO L138 SettingsManager]: * Use SBE=true [2022-07-19 17:41:47,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-19 17:41:47,797 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-19 17:41:47,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-19 17:41:47,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-19 17:41:47,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-19 17:41:47,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-19 17:41:47,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-19 17:41:47,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-19 17:41:47,799 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-19 17:41:47,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-19 17:41:47,799 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-19 17:41:47,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-19 17:41:47,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-19 17:41:47,800 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-19 17:41:47,800 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-19 17:41:47,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:41:47,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-19 17:41:47,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-19 17:41:47,801 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-19 17:41:47,801 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-19 17:41:47,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-19 17:41:47,801 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-19 17:41:47,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-19 17:41:47,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-19 17:41:47,802 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5975f0f3825b3a6653676f33bd69d14e1e58fcf0306bfb5508ab91dc8951d6c4 [2022-07-19 17:41:48,022 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-19 17:41:48,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-19 17:41:48,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-19 17:41:48,043 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-19 17:41:48,044 INFO L275 PluginConnector]: CDTParser initialized [2022-07-19 17:41:48,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.13.cil.c [2022-07-19 17:41:48,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cbe800d7/d2575a2335df4c16b3b45e887267f9d3/FLAG793adb943 [2022-07-19 17:41:48,510 INFO L306 CDTParser]: Found 1 translation units. [2022-07-19 17:41:48,511 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.13.cil.c [2022-07-19 17:41:48,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cbe800d7/d2575a2335df4c16b3b45e887267f9d3/FLAG793adb943 [2022-07-19 17:41:48,888 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cbe800d7/d2575a2335df4c16b3b45e887267f9d3 [2022-07-19 17:41:48,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-19 17:41:48,891 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-19 17:41:48,892 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-19 17:41:48,892 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-19 17:41:48,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-19 17:41:48,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:41:48" (1/1) ... [2022-07-19 17:41:48,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a4ccd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:48, skipping insertion in model container [2022-07-19 17:41:48,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 05:41:48" (1/1) ... [2022-07-19 17:41:48,906 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-19 17:41:48,956 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-19 17:41:49,090 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/transmitter.13.cil.c[706,719] [2022-07-19 17:41:49,221 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:41:49,238 INFO L203 MainTranslator]: Completed pre-run [2022-07-19 17:41:49,247 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/transmitter.13.cil.c[706,719] [2022-07-19 17:41:49,311 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-19 17:41:49,343 INFO L208 MainTranslator]: Completed translation [2022-07-19 17:41:49,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49 WrapperNode [2022-07-19 17:41:49,344 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-19 17:41:49,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-19 17:41:49,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-19 17:41:49,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-19 17:41:49,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,414 INFO L137 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 891 [2022-07-19 17:41:49,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-19 17:41:49,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-19 17:41:49,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-19 17:41:49,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-19 17:41:49,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,428 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,428 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-19 17:41:49,492 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-19 17:41:49,492 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-19 17:41:49,492 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-19 17:41:49,493 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (1/1) ... [2022-07-19 17:41:49,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-19 17:41:49,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-19 17:41:49,529 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-19 17:41:49,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-19 17:41:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-19 17:41:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-19 17:41:49,569 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-19 17:41:49,569 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-19 17:41:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-19 17:41:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-19 17:41:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-19 17:41:49,570 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-19 17:41:49,570 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-19 17:41:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-19 17:41:49,571 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-19 17:41:49,571 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-19 17:41:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-19 17:41:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-19 17:41:49,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-19 17:41:49,572 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-19 17:41:49,695 INFO L234 CfgBuilder]: Building ICFG [2022-07-19 17:41:49,713 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-19 17:41:50,521 INFO L275 CfgBuilder]: Performing block encoding [2022-07-19 17:41:50,539 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-19 17:41:50,540 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-19 17:41:50,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:41:50 BoogieIcfgContainer [2022-07-19 17:41:50,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-19 17:41:50,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-19 17:41:50,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-19 17:41:50,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-19 17:41:50,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 05:41:48" (1/3) ... [2022-07-19 17:41:50,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580be661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:41:50, skipping insertion in model container [2022-07-19 17:41:50,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 05:41:49" (2/3) ... [2022-07-19 17:41:50,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@580be661 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 05:41:50, skipping insertion in model container [2022-07-19 17:41:50,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 05:41:50" (3/3) ... [2022-07-19 17:41:50,551 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.13.cil.c [2022-07-19 17:41:50,564 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-19 17:41:50,565 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-19 17:41:50,620 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-19 17:41:50,626 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@5b826a18, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@6c2682bd [2022-07-19 17:41:50,626 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-19 17:41:50,637 INFO L276 IsEmpty]: Start isEmpty. Operand has 403 states, 369 states have (on average 1.6666666666666667) internal successors, (615), 371 states have internal predecessors, (615), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-19 17:41:50,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:41:50,661 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:41:50,662 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:41:50,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:41:50,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:41:50,667 INFO L85 PathProgramCache]: Analyzing trace with hash -1079055231, now seen corresponding path program 1 times [2022-07-19 17:41:50,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:41:50,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446816440] [2022-07-19 17:41:50,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:41:50,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:41:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:50,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:41:50,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:51,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:41:51,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:51,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:41:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:51,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:41:51,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:41:51,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:41:51,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:41:51,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446816440] [2022-07-19 17:41:51,189 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446816440] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:41:51,189 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:41:51,190 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:41:51,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589144435] [2022-07-19 17:41:51,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:41:51,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:41:51,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:41:51,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:41:51,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:41:51,237 INFO L87 Difference]: Start difference. First operand has 403 states, 369 states have (on average 1.6666666666666667) internal successors, (615), 371 states have internal predecessors, (615), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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) [2022-07-19 17:41:53,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:41:53,060 INFO L93 Difference]: Finished difference Result 950 states and 1584 transitions. [2022-07-19 17:41:53,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:41:53,063 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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 199 [2022-07-19 17:41:53,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:41:53,085 INFO L225 Difference]: With dead ends: 950 [2022-07-19 17:41:53,085 INFO L226 Difference]: Without dead ends: 549 [2022-07-19 17:41:53,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-19 17:41:53,100 INFO L413 NwaCegarLoop]: 696 mSDtfsCounter, 1095 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1119 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:41:53,101 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1119 Valid, 1117 Invalid, 818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-19 17:41:53,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-19 17:41:53,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 398. [2022-07-19 17:41:53,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 365 states have (on average 1.5726027397260274) internal successors, (574), 366 states have internal predecessors, (574), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-19 17:41:53,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 626 transitions. [2022-07-19 17:41:53,221 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 626 transitions. Word has length 199 [2022-07-19 17:41:53,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:41:53,222 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 626 transitions. [2022-07-19 17:41:53,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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) [2022-07-19 17:41:53,224 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 626 transitions. [2022-07-19 17:41:53,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:41:53,235 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:41:53,235 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:41:53,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-19 17:41:53,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:41:53,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:41:53,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1566128957, now seen corresponding path program 1 times [2022-07-19 17:41:53,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:41:53,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021984840] [2022-07-19 17:41:53,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:41:53,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:41:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:53,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:41:53,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:53,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:41:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:53,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:41:53,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:53,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:41:53,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:53,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:41:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:53,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:41:53,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:41:53,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021984840] [2022-07-19 17:41:53,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021984840] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:41:53,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:41:53,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-19 17:41:53,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917798464] [2022-07-19 17:41:53,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:41:53,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-19 17:41:53,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:41:53,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-19 17:41:53,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-19 17:41:53,512 INFO L87 Difference]: Start difference. First operand 398 states and 626 transitions. Second operand has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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) [2022-07-19 17:41:54,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:41:54,983 INFO L93 Difference]: Finished difference Result 933 states and 1488 transitions. [2022-07-19 17:41:54,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-19 17:41:54,984 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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 199 [2022-07-19 17:41:54,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:41:54,988 INFO L225 Difference]: With dead ends: 933 [2022-07-19 17:41:54,988 INFO L226 Difference]: Without dead ends: 549 [2022-07-19 17:41:54,990 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 [2022-07-19 17:41:54,991 INFO L413 NwaCegarLoop]: 691 mSDtfsCounter, 1082 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1106 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 817 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:41:54,992 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1106 Valid, 1103 Invalid, 817 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-19 17:41:54,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2022-07-19 17:41:55,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 398. [2022-07-19 17:41:55,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 365 states have (on average 1.5698630136986302) internal successors, (573), 366 states have internal predecessors, (573), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-07-19 17:41:55,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 625 transitions. [2022-07-19 17:41:55,021 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 625 transitions. Word has length 199 [2022-07-19 17:41:55,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:41:55,022 INFO L495 AbstractCegarLoop]: Abstraction has 398 states and 625 transitions. [2022-07-19 17:41:55,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.8) internal successors, (189), 3 states have internal predecessors, (189), 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) [2022-07-19 17:41:55,022 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 625 transitions. [2022-07-19 17:41:55,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:41:55,024 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:41:55,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:41:55,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-19 17:41:55,025 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:41:55,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:41:55,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1205075717, now seen corresponding path program 1 times [2022-07-19 17:41:55,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:41:55,026 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909261694] [2022-07-19 17:41:55,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:41:55,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:41:55,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:55,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:41:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:55,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:41:55,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:55,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:41:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:55,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:41:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:55,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:41:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:55,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:41:55,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:41:55,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909261694] [2022-07-19 17:41:55,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909261694] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:41:55,211 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:41:55,211 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-19 17:41:55,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971703843] [2022-07-19 17:41:55,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:41:55,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-19 17:41:55,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:41:55,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-19 17:41:55,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-19 17:41:55,214 INFO L87 Difference]: Start difference. First operand 398 states and 625 transitions. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 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) [2022-07-19 17:41:58,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:41:58,151 INFO L93 Difference]: Finished difference Result 1473 states and 2378 transitions. [2022-07-19 17:41:58,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-19 17:41:58,152 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 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 199 [2022-07-19 17:41:58,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:41:58,157 INFO L225 Difference]: With dead ends: 1473 [2022-07-19 17:41:58,157 INFO L226 Difference]: Without dead ends: 1096 [2022-07-19 17:41:58,160 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-19 17:41:58,165 INFO L413 NwaCegarLoop]: 745 mSDtfsCounter, 1641 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 2111 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1660 SdHoareTripleChecker+Valid, 1741 SdHoareTripleChecker+Invalid, 2228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 2111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-19 17:41:58,167 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1660 Valid, 1741 Invalid, 2228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 2111 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-19 17:41:58,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2022-07-19 17:41:58,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 794. [2022-07-19 17:41:58,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 733 states have (on average 1.5811732605729878) internal successors, (1159), 735 states have internal predecessors, (1159), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-07-19 17:41:58,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1256 transitions. [2022-07-19 17:41:58,233 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1256 transitions. Word has length 199 [2022-07-19 17:41:58,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:41:58,233 INFO L495 AbstractCegarLoop]: Abstraction has 794 states and 1256 transitions. [2022-07-19 17:41:58,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 4 states have internal predecessors, (189), 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) [2022-07-19 17:41:58,234 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1256 transitions. [2022-07-19 17:41:58,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:41:58,236 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:41:58,236 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:41:58,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-19 17:41:58,238 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:41:58,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:41:58,238 INFO L85 PathProgramCache]: Analyzing trace with hash 1435906438, now seen corresponding path program 1 times [2022-07-19 17:41:58,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:41:58,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40254794] [2022-07-19 17:41:58,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:41:58,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:41:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:58,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:41:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:58,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:41:58,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:58,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:41:58,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:58,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:41:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:58,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:41:58,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:41:58,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:41:58,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:41:58,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40254794] [2022-07-19 17:41:58,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40254794] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:41:58,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:41:58,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:41:58,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417909582] [2022-07-19 17:41:58,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:41:58,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:41:58,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:41:58,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:41:58,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:41:58,442 INFO L87 Difference]: Start difference. First operand 794 states and 1256 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:02,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:42:02,881 INFO L93 Difference]: Finished difference Result 2629 states and 4211 transitions. [2022-07-19 17:42:02,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 17:42:02,882 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-19 17:42:02,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:42:02,895 INFO L225 Difference]: With dead ends: 2629 [2022-07-19 17:42:02,895 INFO L226 Difference]: Without dead ends: 1856 [2022-07-19 17:42:02,899 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:42:02,908 INFO L413 NwaCegarLoop]: 1304 mSDtfsCounter, 1811 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4155 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1830 SdHoareTripleChecker+Valid, 3287 SdHoareTripleChecker+Invalid, 4237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 4155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-07-19 17:42:02,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1830 Valid, 3287 Invalid, 4237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 4155 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-07-19 17:42:02,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1856 states. [2022-07-19 17:42:03,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1856 to 1162. [2022-07-19 17:42:03,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1162 states, 1073 states have (on average 1.5740913327120223) internal successors, (1689), 1076 states have internal predecessors, (1689), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-07-19 17:42:03,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1162 states to 1162 states and 1830 transitions. [2022-07-19 17:42:03,036 INFO L78 Accepts]: Start accepts. Automaton has 1162 states and 1830 transitions. Word has length 199 [2022-07-19 17:42:03,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:42:03,037 INFO L495 AbstractCegarLoop]: Abstraction has 1162 states and 1830 transitions. [2022-07-19 17:42:03,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:03,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1162 states and 1830 transitions. [2022-07-19 17:42:03,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:42:03,045 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:42:03,045 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:42:03,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-19 17:42:03,046 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:42:03,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:42:03,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1455447560, now seen corresponding path program 1 times [2022-07-19 17:42:03,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:42:03,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596343382] [2022-07-19 17:42:03,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:42:03,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:42:03,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:03,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:42:03,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:03,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:42:03,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:03,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:42:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:03,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:42:03,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:03,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:42:03,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:03,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:42:03,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:42:03,216 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596343382] [2022-07-19 17:42:03,216 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596343382] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:42:03,217 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:42:03,217 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:42:03,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988947681] [2022-07-19 17:42:03,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:42:03,218 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:42:03,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:42:03,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:42:03,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:42:03,219 INFO L87 Difference]: Start difference. First operand 1162 states and 1830 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:07,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:42:07,482 INFO L93 Difference]: Finished difference Result 4050 states and 6479 transitions. [2022-07-19 17:42:07,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 17:42:07,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-19 17:42:07,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:42:07,501 INFO L225 Difference]: With dead ends: 4050 [2022-07-19 17:42:07,501 INFO L226 Difference]: Without dead ends: 2909 [2022-07-19 17:42:07,504 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:42:07,506 INFO L413 NwaCegarLoop]: 1292 mSDtfsCounter, 1805 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4144 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1824 SdHoareTripleChecker+Valid, 3275 SdHoareTripleChecker+Invalid, 4228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2022-07-19 17:42:07,506 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1824 Valid, 3275 Invalid, 4228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4144 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2022-07-19 17:42:07,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2909 states. [2022-07-19 17:42:07,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2909 to 1902. [2022-07-19 17:42:07,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1902 states, 1757 states have (on average 1.5685828116107001) internal successors, (2756), 1762 states have internal predecessors, (2756), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-07-19 17:42:07,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2989 transitions. [2022-07-19 17:42:07,653 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2989 transitions. Word has length 199 [2022-07-19 17:42:07,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:42:07,654 INFO L495 AbstractCegarLoop]: Abstraction has 1902 states and 2989 transitions. [2022-07-19 17:42:07,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:07,654 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2989 transitions. [2022-07-19 17:42:07,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:42:07,658 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:42:07,658 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:42:07,658 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-19 17:42:07,658 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:42:07,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:42:07,659 INFO L85 PathProgramCache]: Analyzing trace with hash 1982841610, now seen corresponding path program 1 times [2022-07-19 17:42:07,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:42:07,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512974084] [2022-07-19 17:42:07,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:42:07,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:42:07,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:07,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:42:07,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:07,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:42:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:07,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:42:07,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:07,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:42:07,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:07,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:42:07,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:07,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:42:07,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:42:07,838 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512974084] [2022-07-19 17:42:07,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512974084] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:42:07,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:42:07,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:42:07,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127528223] [2022-07-19 17:42:07,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:42:07,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:42:07,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:42:07,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:42:07,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:42:07,841 INFO L87 Difference]: Start difference. First operand 1902 states and 2989 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:11,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:42:11,990 INFO L93 Difference]: Finished difference Result 6790 states and 10822 transitions. [2022-07-19 17:42:11,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 17:42:11,991 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-19 17:42:11,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:42:12,016 INFO L225 Difference]: With dead ends: 6790 [2022-07-19 17:42:12,017 INFO L226 Difference]: Without dead ends: 4909 [2022-07-19 17:42:12,024 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:42:12,026 INFO L413 NwaCegarLoop]: 1287 mSDtfsCounter, 1804 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4136 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1823 SdHoareTripleChecker+Valid, 3270 SdHoareTripleChecker+Invalid, 4220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:42:12,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1823 Valid, 3270 Invalid, 4220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4136 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-19 17:42:12,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4909 states. [2022-07-19 17:42:12,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4909 to 3383. [2022-07-19 17:42:12,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3383 states, 3126 states have (on average 1.564299424184261) internal successors, (4890), 3135 states have internal predecessors, (4890), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-07-19 17:42:12,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3383 states to 3383 states and 5313 transitions. [2022-07-19 17:42:12,317 INFO L78 Accepts]: Start accepts. Automaton has 3383 states and 5313 transitions. Word has length 199 [2022-07-19 17:42:12,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:42:12,317 INFO L495 AbstractCegarLoop]: Abstraction has 3383 states and 5313 transitions. [2022-07-19 17:42:12,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:12,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3383 states and 5313 transitions. [2022-07-19 17:42:12,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:42:12,325 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:42:12,325 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:42:12,325 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-19 17:42:12,325 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:42:12,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:42:12,326 INFO L85 PathProgramCache]: Analyzing trace with hash 614381000, now seen corresponding path program 1 times [2022-07-19 17:42:12,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:42:12,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405591067] [2022-07-19 17:42:12,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:42:12,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:42:12,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:12,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:42:12,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:12,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:42:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:12,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:42:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:12,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:42:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:12,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:42:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:12,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:42:12,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:42:12,497 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405591067] [2022-07-19 17:42:12,497 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405591067] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:42:12,497 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:42:12,497 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:42:12,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797877255] [2022-07-19 17:42:12,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:42:12,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:42:12,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:42:12,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:42:12,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:42:12,499 INFO L87 Difference]: Start difference. First operand 3383 states and 5313 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:16,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:42:16,830 INFO L93 Difference]: Finished difference Result 12269 states and 19524 transitions. [2022-07-19 17:42:16,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 17:42:16,831 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-19 17:42:16,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:42:16,871 INFO L225 Difference]: With dead ends: 12269 [2022-07-19 17:42:16,871 INFO L226 Difference]: Without dead ends: 8907 [2022-07-19 17:42:16,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:42:16,884 INFO L413 NwaCegarLoop]: 1282 mSDtfsCounter, 1803 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4128 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1822 SdHoareTripleChecker+Valid, 3265 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:42:16,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1822 Valid, 3265 Invalid, 4212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4128 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-19 17:42:16,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8907 states. [2022-07-19 17:42:17,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8907 to 6352. [2022-07-19 17:42:17,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6352 states, 5871 states have (on average 1.5615738375063872) internal successors, (9168), 5888 states have internal predecessors, (9168), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-07-19 17:42:17,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6352 states to 6352 states and 9989 transitions. [2022-07-19 17:42:17,436 INFO L78 Accepts]: Start accepts. Automaton has 6352 states and 9989 transitions. Word has length 199 [2022-07-19 17:42:17,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:42:17,437 INFO L495 AbstractCegarLoop]: Abstraction has 6352 states and 9989 transitions. [2022-07-19 17:42:17,437 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:17,437 INFO L276 IsEmpty]: Start isEmpty. Operand 6352 states and 9989 transitions. [2022-07-19 17:42:17,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:42:17,449 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:42:17,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:42:17,449 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-19 17:42:17,449 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:42:17,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:42:17,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1262973770, now seen corresponding path program 1 times [2022-07-19 17:42:17,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:42:17,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541795740] [2022-07-19 17:42:17,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:42:17,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:42:17,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:17,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:42:17,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:17,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:42:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:17,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:42:17,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:17,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:42:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:17,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:42:17,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:17,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:42:17,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:42:17,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541795740] [2022-07-19 17:42:17,613 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541795740] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:42:17,613 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:42:17,613 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:42:17,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959488478] [2022-07-19 17:42:17,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:42:17,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:42:17,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:42:17,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:42:17,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:42:17,615 INFO L87 Difference]: Start difference. First operand 6352 states and 9989 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:22,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:42:22,528 INFO L93 Difference]: Finished difference Result 23228 states and 36990 transitions. [2022-07-19 17:42:22,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 17:42:22,531 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-19 17:42:22,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:42:22,624 INFO L225 Difference]: With dead ends: 23228 [2022-07-19 17:42:22,624 INFO L226 Difference]: Without dead ends: 16897 [2022-07-19 17:42:22,651 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:42:22,652 INFO L413 NwaCegarLoop]: 1277 mSDtfsCounter, 1802 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4120 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1821 SdHoareTripleChecker+Valid, 3260 SdHoareTripleChecker+Invalid, 4204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2022-07-19 17:42:22,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1821 Valid, 3260 Invalid, 4204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4120 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2022-07-19 17:42:22,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16897 states. [2022-07-19 17:42:23,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16897 to 12305. [2022-07-19 17:42:23,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12305 states, 11376 states have (on average 1.5599507735583684) internal successors, (17746), 11409 states have internal predecessors, (17746), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-19 17:42:23,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12305 states to 12305 states and 19417 transitions. [2022-07-19 17:42:23,601 INFO L78 Accepts]: Start accepts. Automaton has 12305 states and 19417 transitions. Word has length 199 [2022-07-19 17:42:23,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:42:23,601 INFO L495 AbstractCegarLoop]: Abstraction has 12305 states and 19417 transitions. [2022-07-19 17:42:23,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:23,602 INFO L276 IsEmpty]: Start isEmpty. Operand 12305 states and 19417 transitions. [2022-07-19 17:42:23,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:42:23,623 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:42:23,623 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:42:23,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-19 17:42:23,624 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:42:23,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:42:23,624 INFO L85 PathProgramCache]: Analyzing trace with hash -240124536, now seen corresponding path program 1 times [2022-07-19 17:42:23,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:42:23,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929848344] [2022-07-19 17:42:23,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:42:23,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:42:23,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:23,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:42:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:23,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:42:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:23,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:42:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:23,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:42:23,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:23,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:42:23,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:23,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:42:23,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:42:23,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929848344] [2022-07-19 17:42:23,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929848344] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:42:23,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:42:23,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:42:23,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327164964] [2022-07-19 17:42:23,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:42:23,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:42:23,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:42:23,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:42:23,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:42:23,786 INFO L87 Difference]: Start difference. First operand 12305 states and 19417 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:26,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:42:26,643 INFO L93 Difference]: Finished difference Result 29254 states and 46854 transitions. [2022-07-19 17:42:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-19 17:42:26,644 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-19 17:42:26,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:42:26,706 INFO L225 Difference]: With dead ends: 29254 [2022-07-19 17:42:26,707 INFO L226 Difference]: Without dead ends: 16970 [2022-07-19 17:42:26,745 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 [2022-07-19 17:42:26,745 INFO L413 NwaCegarLoop]: 629 mSDtfsCounter, 1264 mSDsluCounter, 984 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 1613 SdHoareTripleChecker+Invalid, 1550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-19 17:42:26,746 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1284 Valid, 1613 Invalid, 1550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-19 17:42:26,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16970 states. [2022-07-19 17:42:27,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16970 to 12305. [2022-07-19 17:42:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12305 states, 11376 states have (on average 1.557049929676512) internal successors, (17713), 11409 states have internal predecessors, (17713), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-07-19 17:42:27,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12305 states to 12305 states and 19384 transitions. [2022-07-19 17:42:27,571 INFO L78 Accepts]: Start accepts. Automaton has 12305 states and 19384 transitions. Word has length 199 [2022-07-19 17:42:27,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:42:27,571 INFO L495 AbstractCegarLoop]: Abstraction has 12305 states and 19384 transitions. [2022-07-19 17:42:27,572 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:27,572 INFO L276 IsEmpty]: Start isEmpty. Operand 12305 states and 19384 transitions. [2022-07-19 17:42:27,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:42:27,590 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:42:27,591 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:42:27,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-19 17:42:27,592 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:42:27,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:42:27,592 INFO L85 PathProgramCache]: Analyzing trace with hash -150064246, now seen corresponding path program 1 times [2022-07-19 17:42:27,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:42:27,592 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013157514] [2022-07-19 17:42:27,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:42:27,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:42:27,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:27,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:42:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:27,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:42:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:27,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:42:27,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:27,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:42:27,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:27,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:42:27,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:27,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:42:27,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:42:27,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013157514] [2022-07-19 17:42:27,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013157514] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:42:27,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:42:27,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:42:27,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082959661] [2022-07-19 17:42:27,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:42:27,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:42:27,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:42:27,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:42:27,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:42:27,771 INFO L87 Difference]: Start difference. First operand 12305 states and 19384 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:33,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:42:33,994 INFO L93 Difference]: Finished difference Result 45113 states and 71884 transitions. [2022-07-19 17:42:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 17:42:33,994 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-19 17:42:33,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:42:34,129 INFO L225 Difference]: With dead ends: 45113 [2022-07-19 17:42:34,130 INFO L226 Difference]: Without dead ends: 32829 [2022-07-19 17:42:34,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:42:34,171 INFO L413 NwaCegarLoop]: 1266 mSDtfsCounter, 1794 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4093 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1813 SdHoareTripleChecker+Valid, 3249 SdHoareTripleChecker+Invalid, 4177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 4093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:42:34,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1813 Valid, 3249 Invalid, 4177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 4093 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-19 17:42:34,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32829 states. [2022-07-19 17:42:35,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32829 to 24275. [2022-07-19 17:42:35,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24275 states, 22450 states have (on average 1.5553229398663697) internal successors, (34917), 22515 states have internal predecessors, (34917), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2022-07-19 17:42:35,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24275 states to 24275 states and 38450 transitions. [2022-07-19 17:42:35,988 INFO L78 Accepts]: Start accepts. Automaton has 24275 states and 38450 transitions. Word has length 199 [2022-07-19 17:42:35,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:42:35,989 INFO L495 AbstractCegarLoop]: Abstraction has 24275 states and 38450 transitions. [2022-07-19 17:42:35,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:35,989 INFO L276 IsEmpty]: Start isEmpty. Operand 24275 states and 38450 transitions. [2022-07-19 17:42:36,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:42:36,032 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:42:36,032 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:42:36,032 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-19 17:42:36,033 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:42:36,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:42:36,033 INFO L85 PathProgramCache]: Analyzing trace with hash -839895736, now seen corresponding path program 1 times [2022-07-19 17:42:36,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:42:36,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949980343] [2022-07-19 17:42:36,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:42:36,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:42:36,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:36,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:42:36,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:36,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:42:36,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:36,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:42:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:36,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:42:36,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:36,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:42:36,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:36,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:42:36,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:42:36,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949980343] [2022-07-19 17:42:36,196 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949980343] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:42:36,196 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:42:36,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:42:36,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603202862] [2022-07-19 17:42:36,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:42:36,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:42:36,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:42:36,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:42:36,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:42:36,198 INFO L87 Difference]: Start difference. First operand 24275 states and 38450 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:45,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:42:45,303 INFO L93 Difference]: Finished difference Result 88953 states and 142548 transitions. [2022-07-19 17:42:45,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 17:42:45,303 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-19 17:42:45,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:42:45,571 INFO L225 Difference]: With dead ends: 88953 [2022-07-19 17:42:45,571 INFO L226 Difference]: Without dead ends: 64699 [2022-07-19 17:42:45,660 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:42:45,661 INFO L413 NwaCegarLoop]: 1259 mSDtfsCounter, 1796 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4082 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1815 SdHoareTripleChecker+Valid, 3242 SdHoareTripleChecker+Invalid, 4169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-19 17:42:45,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1815 Valid, 3242 Invalid, 4169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4082 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-19 17:42:45,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64699 states. [2022-07-19 17:42:49,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64699 to 48276. [2022-07-19 17:42:49,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48276 states, 44659 states have (on average 1.554333952842652) internal successors, (69415), 44788 states have internal predecessors, (69415), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2022-07-19 17:42:49,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48276 states to 48276 states and 77158 transitions. [2022-07-19 17:42:49,937 INFO L78 Accepts]: Start accepts. Automaton has 48276 states and 77158 transitions. Word has length 199 [2022-07-19 17:42:49,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:42:49,937 INFO L495 AbstractCegarLoop]: Abstraction has 48276 states and 77158 transitions. [2022-07-19 17:42:49,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:42:49,938 INFO L276 IsEmpty]: Start isEmpty. Operand 48276 states and 77158 transitions. [2022-07-19 17:42:50,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:42:50,274 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:42:50,274 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:42:50,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-19 17:42:50,275 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:42:50,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:42:50,276 INFO L85 PathProgramCache]: Analyzing trace with hash 2047345610, now seen corresponding path program 1 times [2022-07-19 17:42:50,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:42:50,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058258301] [2022-07-19 17:42:50,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:42:50,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:42:50,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:50,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:42:50,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:50,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:42:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:50,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:42:50,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:50,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:42:50,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:50,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:42:50,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:42:50,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:42:50,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:42:50,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058258301] [2022-07-19 17:42:50,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058258301] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:42:50,453 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:42:50,453 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:42:50,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328320301] [2022-07-19 17:42:50,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:42:50,454 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:42:50,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:42:50,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:42:50,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:42:50,455 INFO L87 Difference]: Start difference. First operand 48276 states and 77158 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:43:04,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-19 17:43:04,946 INFO L93 Difference]: Finished difference Result 176502 states and 285462 transitions. [2022-07-19 17:43:04,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-19 17:43:04,947 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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 199 [2022-07-19 17:43:04,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-19 17:43:05,458 INFO L225 Difference]: With dead ends: 176502 [2022-07-19 17:43:05,458 INFO L226 Difference]: Without dead ends: 128247 [2022-07-19 17:43:05,606 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-19 17:43:05,607 INFO L413 NwaCegarLoop]: 1250 mSDtfsCounter, 1791 mSDsluCounter, 1983 mSDsCounter, 0 mSdLazyCounter, 4064 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1810 SdHoareTripleChecker+Valid, 3233 SdHoareTripleChecker+Invalid, 4151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 4064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-19 17:43:05,607 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1810 Valid, 3233 Invalid, 4151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 4064 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-19 17:43:05,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128247 states. [2022-07-19 17:43:13,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128247 to 96534. [2022-07-19 17:43:13,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96534 states, 89333 states have (on average 1.5543975910357875) internal successors, (138859), 89590 states have internal predecessors, (138859), 5402 states have call successors, (5402), 1542 states have call predecessors, (5402), 1798 states have return successors, (12219), 5657 states have call predecessors, (12219), 5402 states have call successors, (12219) [2022-07-19 17:43:13,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96534 states to 96534 states and 156480 transitions. [2022-07-19 17:43:13,915 INFO L78 Accepts]: Start accepts. Automaton has 96534 states and 156480 transitions. Word has length 199 [2022-07-19 17:43:13,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-19 17:43:13,916 INFO L495 AbstractCegarLoop]: Abstraction has 96534 states and 156480 transitions. [2022-07-19 17:43:13,916 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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) [2022-07-19 17:43:13,916 INFO L276 IsEmpty]: Start isEmpty. Operand 96534 states and 156480 transitions. [2022-07-19 17:43:14,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2022-07-19 17:43:14,067 INFO L187 NwaCegarLoop]: Found error trace [2022-07-19 17:43:14,067 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-19 17:43:14,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-19 17:43:14,067 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-19 17:43:14,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-19 17:43:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash 124095180, now seen corresponding path program 1 times [2022-07-19 17:43:14,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-19 17:43:14,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621551862] [2022-07-19 17:43:14,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-19 17:43:14,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-19 17:43:14,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-19 17:43:14,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-07-19 17:43:14,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-07-19 17:43:14,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-07-19 17:43:14,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-07-19 17:43:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-19 17:43:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-19 17:43:14,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-19 17:43:14,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621551862] [2022-07-19 17:43:14,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621551862] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-19 17:43:14,230 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-19 17:43:14,230 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-19 17:43:14,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740465237] [2022-07-19 17:43:14,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-19 17:43:14,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-19 17:43:14,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-19 17:43:14,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-19 17:43:14,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-19 17:43:14,231 INFO L87 Difference]: Start difference. First operand 96534 states and 156480 transitions. Second operand has 7 states, 7 states have (on average 27.0) internal successors, (189), 5 states have internal predecessors, (189), 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)