./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c 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/combinations/Problem05_label43+token_ring.13.cil-2.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 e409b9fe4cf385d3ba251b64c82a83b23d76f184ce08a1cc7bc20e4c4b1f5571 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 08:17:10,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 08:17:10,695 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 08:17:10,737 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 08:17:10,737 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 08:17:10,738 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 08:17:10,743 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 08:17:10,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 08:17:10,747 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 08:17:10,752 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 08:17:10,753 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 08:17:10,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 08:17:10,755 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 08:17:10,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 08:17:10,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 08:17:10,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 08:17:10,760 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 08:17:10,761 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 08:17:10,762 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 08:17:10,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 08:17:10,764 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 08:17:10,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 08:17:10,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 08:17:10,767 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 08:17:10,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 08:17:10,770 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 08:17:10,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 08:17:10,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 08:17:10,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 08:17:10,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 08:17:10,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 08:17:10,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 08:17:10,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 08:17:10,773 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 08:17:10,774 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 08:17:10,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 08:17:10,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 08:17:10,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 08:17:10,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 08:17:10,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 08:17:10,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 08:17:10,778 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 08:17:10,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 08:17:10,813 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 08:17:10,814 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 08:17:10,814 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 08:17:10,814 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 08:17:10,815 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 08:17:10,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 08:17:10,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 08:17:10,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 08:17:10,816 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 08:17:10,817 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 08:17:10,817 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 08:17:10,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 08:17:10,818 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 08:17:10,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 08:17:10,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 08:17:10,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 08:17:10,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 08:17:10,819 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 08:17:10,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 08:17:10,820 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 08:17:10,820 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 08:17:10,820 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 08:17:10,820 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 08:17:10,821 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 08:17:10,821 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:17:10,821 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 08:17:10,821 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 08:17:10,821 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 08:17:10,822 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 08:17:10,822 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 08:17:10,822 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 08:17:10,822 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 08:17:10,822 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 08:17:10,823 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e409b9fe4cf385d3ba251b64c82a83b23d76f184ce08a1cc7bc20e4c4b1f5571 [2022-07-12 08:17:11,076 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 08:17:11,097 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 08:17:11,100 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 08:17:11,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 08:17:11,102 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 08:17:11,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-2.c [2022-07-12 08:17:11,156 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5824847c6/1b995c07c7c84aa7af5a7275a294dd51/FLAG18c20ec6a [2022-07-12 08:17:12,067 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 08:17:12,068 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label43+token_ring.13.cil-2.c [2022-07-12 08:17:12,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5824847c6/1b995c07c7c84aa7af5a7275a294dd51/FLAG18c20ec6a [2022-07-12 08:17:12,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5824847c6/1b995c07c7c84aa7af5a7275a294dd51 [2022-07-12 08:17:12,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 08:17:12,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 08:17:12,488 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 08:17:12,488 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 08:17:12,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 08:17:12,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:17:12" (1/1) ... [2022-07-12 08:17:12,492 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f739c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:12, skipping insertion in model container [2022-07-12 08:17:12,492 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:17:12" (1/1) ... [2022-07-12 08:17:12,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 08:17:12,669 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 08:17:14,240 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/combinations/Problem05_label43+token_ring.13.cil-2.c[381679,381692] [2022-07-12 08:17:14,264 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/combinations/Problem05_label43+token_ring.13.cil-2.c[383339,383352] [2022-07-12 08:17:14,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:17:14,535 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 08:17:15,274 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/combinations/Problem05_label43+token_ring.13.cil-2.c[381679,381692] [2022-07-12 08:17:15,277 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/combinations/Problem05_label43+token_ring.13.cil-2.c[383339,383352] [2022-07-12 08:17:15,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:17:15,360 INFO L208 MainTranslator]: Completed translation [2022-07-12 08:17:15,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15 WrapperNode [2022-07-12 08:17:15,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 08:17:15,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 08:17:15,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 08:17:15,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 08:17:15,369 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:15,512 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:15,841 INFO L137 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2022-07-12 08:17:15,842 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 08:17:15,843 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 08:17:15,843 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 08:17:15,843 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 08:17:15,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:15,851 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:15,905 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:15,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:16,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:16,215 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:16,278 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:16,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 08:17:16,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 08:17:16,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 08:17:16,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 08:17:16,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (1/1) ... [2022-07-12 08:17:16,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:17:16,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 08:17:16,388 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) [2022-07-12 08:17:16,414 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 [2022-07-12 08:17:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 08:17:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-12 08:17:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-12 08:17:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-12 08:17:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-12 08:17:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-12 08:17:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-12 08:17:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-12 08:17:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-12 08:17:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-12 08:17:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-12 08:17:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-12 08:17:16,428 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-12 08:17:16,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 08:17:16,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 08:17:16,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 08:17:16,616 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 08:17:16,634 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 08:17:22,891 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 08:17:22,917 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 08:17:22,918 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-12 08:17:22,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:17:22 BoogieIcfgContainer [2022-07-12 08:17:22,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 08:17:22,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 08:17:22,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 08:17:22,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 08:17:22,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 08:17:12" (1/3) ... [2022-07-12 08:17:22,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb10ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:17:22, skipping insertion in model container [2022-07-12 08:17:22,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:17:15" (2/3) ... [2022-07-12 08:17:22,928 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb10ce5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:17:22, skipping insertion in model container [2022-07-12 08:17:22,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:17:22" (3/3) ... [2022-07-12 08:17:22,929 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label43+token_ring.13.cil-2.c [2022-07-12 08:17:22,941 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 08:17:22,941 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 08:17:23,040 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 08:17:23,045 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@4fd81a69, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@363430d7 [2022-07-12 08:17:23,046 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 08:17:23,059 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:17:23,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:23,076 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:23,077 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] [2022-07-12 08:17:23,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:23,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:23,082 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2022-07-12 08:17:23,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:23,090 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397137441] [2022-07-12 08:17:23,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:23,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:23,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:23,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:23,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:23,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:23,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:23,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:23,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:23,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:23,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:23,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:23,539 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397137441] [2022-07-12 08:17:23,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397137441] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:23,540 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:23,540 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 08:17:23,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229805037] [2022-07-12 08:17:23,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:23,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 08:17:23,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:23,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 08:17:23,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 08:17:23,580 INFO L87 Difference]: Start difference. First operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-07-12 08:17:25,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:25,607 INFO L93 Difference]: Finished difference Result 5325 states and 9765 transitions. [2022-07-12 08:17:25,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 08:17:25,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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 189 [2022-07-12 08:17:25,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:25,642 INFO L225 Difference]: With dead ends: 5325 [2022-07-12 08:17:25,642 INFO L226 Difference]: Without dead ends: 2676 [2022-07-12 08:17:25,654 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 [2022-07-12 08:17:25,660 INFO L413 NwaCegarLoop]: 4729 mSDtfsCounter, 1107 mSDsluCounter, 12491 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 17220 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:25,662 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 17220 Invalid, 838 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [62 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 08:17:25,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-07-12 08:17:25,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-07-12 08:17:25,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8243569131832797) internal successors, (4539), 2490 states have internal predecessors, (4539), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:17:25,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4593 transitions. [2022-07-12 08:17:25,828 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4593 transitions. Word has length 189 [2022-07-12 08:17:25,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:25,828 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4593 transitions. [2022-07-12 08:17:25,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-07-12 08:17:25,829 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4593 transitions. [2022-07-12 08:17:25,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:25,833 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:25,833 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] [2022-07-12 08:17:25,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 08:17:25,834 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:25,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:25,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1444519429, now seen corresponding path program 1 times [2022-07-12 08:17:25,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:25,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511438696] [2022-07-12 08:17:25,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:25,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:25,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:25,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:25,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:25,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:25,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:25,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:25,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:26,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:26,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:26,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:26,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:26,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:26,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:26,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511438696] [2022-07-12 08:17:26,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511438696] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:26,036 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:26,036 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 08:17:26,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421853129] [2022-07-12 08:17:26,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:26,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 08:17:26,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:26,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 08:17:26,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 08:17:26,039 INFO L87 Difference]: Start difference. First operand 2523 states and 4593 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-07-12 08:17:27,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:27,755 INFO L93 Difference]: Finished difference Result 3061 states and 5463 transitions. [2022-07-12 08:17:27,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 08:17:27,756 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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 189 [2022-07-12 08:17:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:27,769 INFO L225 Difference]: With dead ends: 3061 [2022-07-12 08:17:27,770 INFO L226 Difference]: Without dead ends: 2676 [2022-07-12 08:17:27,773 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 [2022-07-12 08:17:27,774 INFO L413 NwaCegarLoop]: 4659 mSDtfsCounter, 1093 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 16947 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:27,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 16947 Invalid, 837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 08:17:27,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-07-12 08:17:27,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-07-12 08:17:27,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8239549839228295) internal successors, (4538), 2490 states have internal predecessors, (4538), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:17:27,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4592 transitions. [2022-07-12 08:17:27,855 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4592 transitions. Word has length 189 [2022-07-12 08:17:27,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:27,856 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4592 transitions. [2022-07-12 08:17:27,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 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) [2022-07-12 08:17:27,856 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4592 transitions. [2022-07-12 08:17:27,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:27,859 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:27,859 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] [2022-07-12 08:17:27,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 08:17:27,860 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:27,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:27,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1347349561, now seen corresponding path program 1 times [2022-07-12 08:17:27,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:27,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978544277] [2022-07-12 08:17:27,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:27,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:27,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:27,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:27,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:27,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:28,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:28,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:28,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:28,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:28,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:28,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:28,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:28,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:28,097 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978544277] [2022-07-12 08:17:28,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978544277] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:28,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:28,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 08:17:28,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516203616] [2022-07-12 08:17:28,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:28,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 08:17:28,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:28,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 08:17:28,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 08:17:28,102 INFO L87 Difference]: Start difference. First operand 2523 states and 4592 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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) [2022-07-12 08:17:31,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:31,231 INFO L93 Difference]: Finished difference Result 3611 states and 6359 transitions. [2022-07-12 08:17:31,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 08:17:31,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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 189 [2022-07-12 08:17:31,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:31,246 INFO L225 Difference]: With dead ends: 3611 [2022-07-12 08:17:31,246 INFO L226 Difference]: Without dead ends: 3230 [2022-07-12 08:17:31,249 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:17:31,250 INFO L413 NwaCegarLoop]: 4715 mSDtfsCounter, 5624 mSDsluCounter, 12879 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5644 SdHoareTripleChecker+Valid, 17594 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:31,250 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5644 Valid, 17594 Invalid, 2280 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 08:17:31,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-07-12 08:17:31,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2925. [2022-07-12 08:17:31,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7948269835721775) internal successors, (5135), 2864 states have internal predecessors, (5135), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-07-12 08:17:31,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5236 transitions. [2022-07-12 08:17:31,355 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5236 transitions. Word has length 189 [2022-07-12 08:17:31,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:31,355 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 5236 transitions. [2022-07-12 08:17:31,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 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) [2022-07-12 08:17:31,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5236 transitions. [2022-07-12 08:17:31,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:31,358 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:31,359 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] [2022-07-12 08:17:31,359 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 08:17:31,359 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:31,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:31,360 INFO L85 PathProgramCache]: Analyzing trace with hash 671278923, now seen corresponding path program 1 times [2022-07-12 08:17:31,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:31,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390140992] [2022-07-12 08:17:31,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:31,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:31,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:31,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:31,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:31,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:31,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:31,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:31,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:31,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:31,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:31,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:31,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:31,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:31,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390140992] [2022-07-12 08:17:31,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390140992] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:31,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:31,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:31,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071867602] [2022-07-12 08:17:31,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:31,555 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:31,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:31,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:31,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:31,557 INFO L87 Difference]: Start difference. First operand 2925 states and 5236 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:35,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:35,199 INFO L93 Difference]: Finished difference Result 4589 states and 7942 transitions. [2022-07-12 08:17:35,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:17:35,200 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:17:35,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:35,216 INFO L225 Difference]: With dead ends: 4589 [2022-07-12 08:17:35,216 INFO L226 Difference]: Without dead ends: 3806 [2022-07-12 08:17:35,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:17:35,220 INFO L413 NwaCegarLoop]: 5036 mSDtfsCounter, 5662 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3353 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5682 SdHoareTripleChecker+Valid, 22865 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:35,221 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5682 Valid, 22865 Invalid, 3435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 3353 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2022-07-12 08:17:35,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-07-12 08:17:35,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3298. [2022-07-12 08:17:35,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 3205 states have (on average 1.7703588143525741) internal successors, (5674), 3209 states have internal predecessors, (5674), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-07-12 08:17:35,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5821 transitions. [2022-07-12 08:17:35,359 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5821 transitions. Word has length 189 [2022-07-12 08:17:35,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:35,360 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5821 transitions. [2022-07-12 08:17:35,366 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:35,366 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5821 transitions. [2022-07-12 08:17:35,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:35,368 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:35,368 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] [2022-07-12 08:17:35,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 08:17:35,369 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:35,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:35,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1053329399, now seen corresponding path program 1 times [2022-07-12 08:17:35,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:35,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748070422] [2022-07-12 08:17:35,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:35,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:35,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:35,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:35,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:35,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:35,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:35,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:35,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:35,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:35,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:35,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748070422] [2022-07-12 08:17:35,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748070422] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:35,559 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:35,559 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:35,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756009972] [2022-07-12 08:17:35,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:35,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:35,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:35,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:35,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:35,561 INFO L87 Difference]: Start difference. First operand 3298 states and 5821 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:39,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:39,203 INFO L93 Difference]: Finished difference Result 6030 states and 10255 transitions. [2022-07-12 08:17:39,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:17:39,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:17:39,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:39,240 INFO L225 Difference]: With dead ends: 6030 [2022-07-12 08:17:39,240 INFO L226 Difference]: Without dead ends: 4874 [2022-07-12 08:17:39,258 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:17:39,268 INFO L413 NwaCegarLoop]: 5024 mSDtfsCounter, 5656 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5676 SdHoareTripleChecker+Valid, 22853 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:39,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5676 Valid, 22853 Invalid, 3426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 08:17:39,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2022-07-12 08:17:39,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4048. [2022-07-12 08:17:39,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 3897 states have (on average 1.7344110854503465) internal successors, (6759), 3903 states have internal predecessors, (6759), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-07-12 08:17:39,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 7002 transitions. [2022-07-12 08:17:39,483 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 7002 transitions. Word has length 189 [2022-07-12 08:17:39,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:39,483 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 7002 transitions. [2022-07-12 08:17:39,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:39,484 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 7002 transitions. [2022-07-12 08:17:39,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:39,487 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:39,487 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] [2022-07-12 08:17:39,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 08:17:39,488 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:39,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:39,488 INFO L85 PathProgramCache]: Analyzing trace with hash -483057593, now seen corresponding path program 1 times [2022-07-12 08:17:39,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:39,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618892454] [2022-07-12 08:17:39,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:39,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:39,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:39,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:39,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:39,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:39,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:39,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:39,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:39,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618892454] [2022-07-12 08:17:39,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618892454] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:39,665 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:39,665 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:39,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093397705] [2022-07-12 08:17:39,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:39,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:39,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:39,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:39,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:39,667 INFO L87 Difference]: Start difference. First operand 4048 states and 7002 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:43,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:43,397 INFO L93 Difference]: Finished difference Result 8806 states and 14680 transitions. [2022-07-12 08:17:43,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:17:43,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:17:43,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:43,430 INFO L225 Difference]: With dead ends: 8806 [2022-07-12 08:17:43,430 INFO L226 Difference]: Without dead ends: 6900 [2022-07-12 08:17:43,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:17:43,440 INFO L413 NwaCegarLoop]: 5019 mSDtfsCounter, 5655 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5675 SdHoareTripleChecker+Valid, 22848 SdHoareTripleChecker+Invalid, 3418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:43,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5675 Valid, 22848 Invalid, 3418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3334 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 08:17:43,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2022-07-12 08:17:43,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 5549. [2022-07-12 08:17:43,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 5282 states have (on average 1.690458159787959) internal successors, (8929), 5292 states have internal predecessors, (8929), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-07-12 08:17:43,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 9370 transitions. [2022-07-12 08:17:43,797 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 9370 transitions. Word has length 189 [2022-07-12 08:17:43,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:43,798 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 9370 transitions. [2022-07-12 08:17:43,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:43,799 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 9370 transitions. [2022-07-12 08:17:43,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:43,802 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:43,803 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] [2022-07-12 08:17:43,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 08:17:43,803 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:43,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:43,804 INFO L85 PathProgramCache]: Analyzing trace with hash 920811593, now seen corresponding path program 1 times [2022-07-12 08:17:43,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:43,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [857005195] [2022-07-12 08:17:43,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:43,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:43,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:43,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:43,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:43,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:43,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:43,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:43,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:43,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:43,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:43,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:43,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:43,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:43,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [857005195] [2022-07-12 08:17:43,967 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [857005195] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:43,967 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:43,968 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:43,968 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848367484] [2022-07-12 08:17:43,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:43,968 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:43,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:43,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:43,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:43,969 INFO L87 Difference]: Start difference. First operand 5549 states and 9370 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:47,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:47,622 INFO L93 Difference]: Finished difference Result 14357 states and 23546 transitions. [2022-07-12 08:17:47,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:17:47,624 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:17:47,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:47,665 INFO L225 Difference]: With dead ends: 14357 [2022-07-12 08:17:47,665 INFO L226 Difference]: Without dead ends: 10950 [2022-07-12 08:17:47,681 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:17:47,682 INFO L413 NwaCegarLoop]: 5014 mSDtfsCounter, 5654 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3326 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5674 SdHoareTripleChecker+Valid, 22843 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:47,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5674 Valid, 22843 Invalid, 3410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3326 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 08:17:47,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-07-12 08:17:48,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 8558. [2022-07-12 08:17:48,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8059 states have (on average 1.6477230425611118) internal successors, (13279), 8077 states have internal predecessors, (13279), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-07-12 08:17:48,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 14134 transitions. [2022-07-12 08:17:48,315 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 14134 transitions. Word has length 189 [2022-07-12 08:17:48,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:48,316 INFO L495 AbstractCegarLoop]: Abstraction has 8558 states and 14134 transitions. [2022-07-12 08:17:48,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:48,316 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 14134 transitions. [2022-07-12 08:17:48,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:48,321 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:48,321 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] [2022-07-12 08:17:48,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 08:17:48,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:48,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:48,325 INFO L85 PathProgramCache]: Analyzing trace with hash 134813703, now seen corresponding path program 1 times [2022-07-12 08:17:48,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:48,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997937266] [2022-07-12 08:17:48,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:48,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:48,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:48,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:48,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:48,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:48,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:48,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:48,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:48,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997937266] [2022-07-12 08:17:48,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997937266] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:48,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:48,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:48,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259048536] [2022-07-12 08:17:48,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:48,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:48,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:48,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:48,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:48,498 INFO L87 Difference]: Start difference. First operand 8558 states and 14134 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:52,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:52,633 INFO L93 Difference]: Finished difference Result 25460 states and 41340 transitions. [2022-07-12 08:17:52,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:17:52,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:17:52,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:52,700 INFO L225 Difference]: With dead ends: 25460 [2022-07-12 08:17:52,701 INFO L226 Difference]: Without dead ends: 19044 [2022-07-12 08:17:52,728 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:17:52,729 INFO L413 NwaCegarLoop]: 4750 mSDtfsCounter, 5763 mSDsluCounter, 17145 mSDsCounter, 0 mSdLazyCounter, 2957 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 21895 SdHoareTripleChecker+Invalid, 3079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 2957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:52,729 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5783 Valid, 21895 Invalid, 3079 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 2957 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 08:17:52,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19044 states. [2022-07-12 08:17:53,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19044 to 14591. [2022-07-12 08:17:53,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.6143968300557676) internal successors, (22001), 13662 states have internal predecessors, (22001), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-12 08:17:53,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23738 transitions. [2022-07-12 08:17:53,840 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23738 transitions. Word has length 189 [2022-07-12 08:17:53,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:53,840 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23738 transitions. [2022-07-12 08:17:53,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:53,841 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23738 transitions. [2022-07-12 08:17:53,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:53,848 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:53,849 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] [2022-07-12 08:17:53,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 08:17:53,849 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:53,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:53,850 INFO L85 PathProgramCache]: Analyzing trace with hash 802195593, now seen corresponding path program 1 times [2022-07-12 08:17:53,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:53,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991477962] [2022-07-12 08:17:53,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:53,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:53,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:53,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:53,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:53,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:54,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:54,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:54,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:54,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:54,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:54,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:54,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:54,028 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991477962] [2022-07-12 08:17:54,028 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991477962] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:54,028 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:54,028 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:54,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106952398] [2022-07-12 08:17:54,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:54,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:54,031 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:54,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:54,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:54,032 INFO L87 Difference]: Start difference. First operand 14591 states and 23738 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:57,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:17:57,021 INFO L93 Difference]: Finished difference Result 31774 states and 51709 transitions. [2022-07-12 08:17:57,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 08:17:57,021 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:17:57,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:17:57,081 INFO L225 Difference]: With dead ends: 31774 [2022-07-12 08:17:57,082 INFO L226 Difference]: Without dead ends: 19325 [2022-07-12 08:17:57,129 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:17:57,133 INFO L413 NwaCegarLoop]: 4637 mSDtfsCounter, 5161 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5182 SdHoareTripleChecker+Valid, 21461 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:17:57,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5182 Valid, 21461 Invalid, 1672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 08:17:57,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2022-07-12 08:17:58,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 14591. [2022-07-12 08:17:58,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.611975344878192) internal successors, (21968), 13662 states have internal predecessors, (21968), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-12 08:17:58,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23705 transitions. [2022-07-12 08:17:58,205 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23705 transitions. Word has length 189 [2022-07-12 08:17:58,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:17:58,206 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23705 transitions. [2022-07-12 08:17:58,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:17:58,206 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23705 transitions. [2022-07-12 08:17:58,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:17:58,216 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:17:58,216 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] [2022-07-12 08:17:58,217 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 08:17:58,217 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:17:58,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:17:58,218 INFO L85 PathProgramCache]: Analyzing trace with hash -1393033273, now seen corresponding path program 1 times [2022-07-12 08:17:58,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:17:58,218 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370291161] [2022-07-12 08:17:58,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:17:58,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:17:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:58,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:17:58,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:58,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:17:58,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:58,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:17:58,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:58,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:17:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:17:58,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:17:58,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:17:58,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:17:58,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370291161] [2022-07-12 08:17:58,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370291161] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:17:58,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:17:58,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:17:58,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580969390] [2022-07-12 08:17:58,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:17:58,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:17:58,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:17:58,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:17:58,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:17:58,365 INFO L87 Difference]: Start difference. First operand 14591 states and 23705 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:18:04,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:04,048 INFO L93 Difference]: Finished difference Result 47633 states and 76890 transitions. [2022-07-12 08:18:04,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:18:04,049 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:18:04,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:04,155 INFO L225 Difference]: With dead ends: 47633 [2022-07-12 08:18:04,156 INFO L226 Difference]: Without dead ends: 35184 [2022-07-12 08:18:04,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:18:04,199 INFO L413 NwaCegarLoop]: 4998 mSDtfsCounter, 5645 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3291 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5665 SdHoareTripleChecker+Valid, 22827 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:04,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5665 Valid, 22827 Invalid, 3375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 3291 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 08:18:04,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35184 states. [2022-07-12 08:18:05,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35184 to 26721. [2022-07-12 08:18:05,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26721 states, 24830 states have (on average 1.5892066049134113) internal successors, (39460), 24896 states have internal predecessors, (39460), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-07-12 08:18:05,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26721 states to 26721 states and 43123 transitions. [2022-07-12 08:18:05,987 INFO L78 Accepts]: Start accepts. Automaton has 26721 states and 43123 transitions. Word has length 189 [2022-07-12 08:18:05,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:18:05,988 INFO L495 AbstractCegarLoop]: Abstraction has 26721 states and 43123 transitions. [2022-07-12 08:18:05,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:18:05,988 INFO L276 IsEmpty]: Start isEmpty. Operand 26721 states and 43123 transitions. [2022-07-12 08:18:06,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:18:06,005 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:18:06,005 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] [2022-07-12 08:18:06,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 08:18:06,006 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:18:06,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:18:06,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1048205111, now seen corresponding path program 1 times [2022-07-12 08:18:06,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:18:06,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122111420] [2022-07-12 08:18:06,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:18:06,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:18:06,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:06,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:18:06,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:06,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:18:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:06,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:18:06,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:06,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:18:06,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:06,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:18:06,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:06,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:18:06,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:18:06,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122111420] [2022-07-12 08:18:06,209 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122111420] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:18:06,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:18:06,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:18:06,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526347012] [2022-07-12 08:18:06,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:18:06,210 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:18:06,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:18:06,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:18:06,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:18:06,212 INFO L87 Difference]: Start difference. First operand 26721 states and 43123 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:18:14,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:14,451 INFO L93 Difference]: Finished difference Result 92049 states and 148866 transitions. [2022-07-12 08:18:14,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:18:14,452 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:18:14,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:14,702 INFO L225 Difference]: With dead ends: 92049 [2022-07-12 08:18:14,702 INFO L226 Difference]: Without dead ends: 67470 [2022-07-12 08:18:14,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:18:14,810 INFO L413 NwaCegarLoop]: 4991 mSDtfsCounter, 5647 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3280 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5667 SdHoareTripleChecker+Valid, 22820 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:14,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5667 Valid, 22820 Invalid, 3367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3280 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 08:18:14,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67470 states. [2022-07-12 08:18:19,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67470 to 51042. [2022-07-12 08:18:19,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.575938259858336) internal successors, (74534), 47425 states have internal predecessors, (74534), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-12 08:18:19,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82535 transitions. [2022-07-12 08:18:19,379 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82535 transitions. Word has length 189 [2022-07-12 08:18:19,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:18:19,380 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82535 transitions. [2022-07-12 08:18:19,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:18:19,380 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82535 transitions. [2022-07-12 08:18:19,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:18:19,412 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:18:19,412 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] [2022-07-12 08:18:19,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 08:18:19,413 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:18:19,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:18:19,413 INFO L85 PathProgramCache]: Analyzing trace with hash -67250297, now seen corresponding path program 1 times [2022-07-12 08:18:19,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:18:19,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1846380259] [2022-07-12 08:18:19,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:18:19,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:18:19,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:19,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:18:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:19,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:18:19,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:19,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:18:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:18:19,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:18:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:19,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:18:19,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:18:19,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1846380259] [2022-07-12 08:18:19,565 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1846380259] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:18:19,565 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:18:19,565 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:18:19,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423657614] [2022-07-12 08:18:19,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:18:19,566 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:18:19,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:18:19,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:18:19,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:18:19,567 INFO L87 Difference]: Start difference. First operand 51042 states and 82535 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:18:27,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:27,129 INFO L93 Difference]: Finished difference Result 117340 states and 192222 transitions. [2022-07-12 08:18:27,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 08:18:27,129 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:18:27,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:27,432 INFO L225 Difference]: With dead ends: 117340 [2022-07-12 08:18:27,432 INFO L226 Difference]: Without dead ends: 68440 [2022-07-12 08:18:27,559 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 [2022-07-12 08:18:27,560 INFO L413 NwaCegarLoop]: 4623 mSDtfsCounter, 5162 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5183 SdHoareTripleChecker+Valid, 21447 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:27,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5183 Valid, 21447 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 08:18:27,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68440 states. [2022-07-12 08:18:31,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68440 to 51042. [2022-07-12 08:18:31,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.5732106988053705) internal successors, (74405), 47425 states have internal predecessors, (74405), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-12 08:18:31,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82406 transitions. [2022-07-12 08:18:31,791 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82406 transitions. Word has length 189 [2022-07-12 08:18:31,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:18:31,792 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82406 transitions. [2022-07-12 08:18:31,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:18:31,792 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82406 transitions. [2022-07-12 08:18:31,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:18:31,823 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:18:31,824 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] [2022-07-12 08:18:31,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 08:18:31,824 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:18:31,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:18:31,825 INFO L85 PathProgramCache]: Analyzing trace with hash -678519355, now seen corresponding path program 1 times [2022-07-12 08:18:31,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:18:31,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912996995] [2022-07-12 08:18:31,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:18:31,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:18:31,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:31,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:18:31,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:31,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:18:31,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:31,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:18:31,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:31,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:18:31,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:31,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:18:31,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:31,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:18:31,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:18:31,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912996995] [2022-07-12 08:18:31,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912996995] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:18:31,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:18:31,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:18:31,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557095775] [2022-07-12 08:18:31,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:18:31,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:18:31,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:18:31,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:18:31,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:18:31,992 INFO L87 Difference]: Start difference. First operand 51042 states and 82406 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:18:47,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:18:47,513 INFO L93 Difference]: Finished difference Result 180620 states and 293500 transitions. [2022-07-12 08:18:47,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:18:47,514 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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 189 [2022-07-12 08:18:47,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:18:47,908 INFO L225 Difference]: With dead ends: 180620 [2022-07-12 08:18:47,908 INFO L226 Difference]: Without dead ends: 131720 [2022-07-12 08:18:48,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:18:48,031 INFO L413 NwaCegarLoop]: 4976 mSDtfsCounter, 5635 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 22805 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 08:18:48,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5655 Valid, 22805 Invalid, 3330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 3243 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 08:18:48,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131720 states. [2022-07-12 08:18:56,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131720 to 100069. [2022-07-12 08:18:56,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100069 states, 92610 states have (on average 1.5657380412482453) internal successors, (145003), 92868 states have internal predecessors, (145003), 5659 states have call successors, (5659), 1542 states have call predecessors, (5659), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2022-07-12 08:18:56,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100069 states to 100069 states and 163138 transitions. [2022-07-12 08:18:56,932 INFO L78 Accepts]: Start accepts. Automaton has 100069 states and 163138 transitions. Word has length 189 [2022-07-12 08:18:56,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:18:56,932 INFO L495 AbstractCegarLoop]: Abstraction has 100069 states and 163138 transitions. [2022-07-12 08:18:56,933 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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) [2022-07-12 08:18:56,933 INFO L276 IsEmpty]: Start isEmpty. Operand 100069 states and 163138 transitions. [2022-07-12 08:18:56,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-12 08:18:56,981 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:18:56,982 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] [2022-07-12 08:18:56,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 08:18:56,982 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:18:56,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:18:56,983 INFO L85 PathProgramCache]: Analyzing trace with hash -2083711033, now seen corresponding path program 1 times [2022-07-12 08:18:56,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:18:56,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65263888] [2022-07-12 08:18:56,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:18:56,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:18:57,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:57,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:18:57,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:57,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:18:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:57,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:18:57,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:57,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:18:57,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:57,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:18:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:18:57,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:18:57,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:18:57,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65263888] [2022-07-12 08:18:57,163 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65263888] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:18:57,163 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:18:57,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:18:57,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90218600] [2022-07-12 08:18:57,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:18:57,170 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:18:57,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:18:57,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:18:57,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:18:57,171 INFO L87 Difference]: Start difference. First operand 100069 states and 163138 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 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)