./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/transmitter.11.cil.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/systemc/transmitter.11.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 940a677bfde7dbbc79e036121bd0ec6fd3518c0f58a02d336e5d42fafb098792 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 06:36:38,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 06:36:38,204 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 06:36:38,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 06:36:38,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 06:36:38,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 06:36:38,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 06:36:38,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 06:36:38,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 06:36:38,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 06:36:38,253 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 06:36:38,254 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 06:36:38,254 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 06:36:38,256 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 06:36:38,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 06:36:38,259 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 06:36:38,260 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 06:36:38,261 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 06:36:38,262 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 06:36:38,266 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 06:36:38,267 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 06:36:38,268 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 06:36:38,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 06:36:38,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 06:36:38,270 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 06:36:38,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 06:36:38,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 06:36:38,273 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 06:36:38,274 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 06:36:38,274 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 06:36:38,275 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 06:36:38,275 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 06:36:38,276 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 06:36:38,277 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 06:36:38,277 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 06:36:38,278 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 06:36:38,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 06:36:38,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 06:36:38,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 06:36:38,279 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 06:36:38,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 06:36:38,281 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 06:36:38,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 06:36:38,306 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 06:36:38,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 06:36:38,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 06:36:38,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 06:36:38,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 06:36:38,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 06:36:38,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 06:36:38,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 06:36:38,310 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 06:36:38,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 06:36:38,311 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 06:36:38,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 06:36:38,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 06:36:38,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 06:36:38,311 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 06:36:38,311 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 06:36:38,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 06:36:38,312 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 06:36:38,312 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 06:36:38,313 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 06:36:38,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 06:36:38,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 06:36:38,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 06:36:38,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 06:36:38,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:36:38,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 06:36:38,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 06:36:38,314 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 06:36:38,314 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 06:36:38,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 06:36:38,315 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 06:36:38,315 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 06:36:38,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 06:36:38,315 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 940a677bfde7dbbc79e036121bd0ec6fd3518c0f58a02d336e5d42fafb098792 [2022-07-12 06:36:38,513 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 06:36:38,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 06:36:38,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 06:36:38,534 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 06:36:38,534 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 06:36:38,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/transmitter.11.cil.c [2022-07-12 06:36:38,583 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a697ed41/a284c69a9e1442399d701d5091a8367d/FLAGe948de08a [2022-07-12 06:36:38,959 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 06:36:38,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c [2022-07-12 06:36:38,974 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a697ed41/a284c69a9e1442399d701d5091a8367d/FLAGe948de08a [2022-07-12 06:36:39,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a697ed41/a284c69a9e1442399d701d5091a8367d [2022-07-12 06:36:39,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 06:36:39,352 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 06:36:39,353 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 06:36:39,353 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 06:36:39,362 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 06:36:39,362 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59a1cc87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39, skipping insertion in model container [2022-07-12 06:36:39,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 06:36:39,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 06:36:39,510 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c[706,719] [2022-07-12 06:36:39,607 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:36:39,613 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 06:36:39,636 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/transmitter.11.cil.c[706,719] [2022-07-12 06:36:39,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 06:36:39,688 INFO L208 MainTranslator]: Completed translation [2022-07-12 06:36:39,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39 WrapperNode [2022-07-12 06:36:39,688 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 06:36:39,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 06:36:39,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 06:36:39,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 06:36:39,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,741 INFO L137 Inliner]: procedures = 50, calls = 63, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 777 [2022-07-12 06:36:39,741 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 06:36:39,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 06:36:39,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 06:36:39,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 06:36:39,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,748 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,780 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 06:36:39,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 06:36:39,787 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 06:36:39,787 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 06:36:39,788 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (1/1) ... [2022-07-12 06:36:39,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 06:36:39,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 06:36:39,823 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 06:36:39,825 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 06:36:39,852 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 06:36:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-12 06:36:39,855 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-12 06:36:39,855 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-12 06:36:39,855 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-12 06:36:39,856 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-12 06:36:39,856 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-12 06:36:39,858 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-12 06:36:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-12 06:36:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-12 06:36:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-12 06:36:39,859 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-12 06:36:39,859 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-12 06:36:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 06:36:39,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 06:36:39,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 06:36:39,951 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 06:36:39,953 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 06:36:40,493 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 06:36:40,504 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 06:36:40,504 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2022-07-12 06:36:40,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:36:40 BoogieIcfgContainer [2022-07-12 06:36:40,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 06:36:40,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 06:36:40,508 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 06:36:40,510 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 06:36:40,510 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 06:36:39" (1/3) ... [2022-07-12 06:36:40,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e940273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:36:40, skipping insertion in model container [2022-07-12 06:36:40,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 06:36:39" (2/3) ... [2022-07-12 06:36:40,511 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e940273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 06:36:40, skipping insertion in model container [2022-07-12 06:36:40,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 06:36:40" (3/3) ... [2022-07-12 06:36:40,513 INFO L111 eAbstractionObserver]: Analyzing ICFG transmitter.11.cil.c [2022-07-12 06:36:40,523 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 06:36:40,523 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-12 06:36:40,576 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 06:36:40,583 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@5dda25c6, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@42467fcc [2022-07-12 06:36:40,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-12 06:36:40,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 353 states, 321 states have (on average 1.6604361370716512) internal successors, (533), 323 states have internal predecessors, (533), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-12 06:36:40,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:36:40,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:36:40,615 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] [2022-07-12 06:36:40,615 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:36:40,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:36:40,620 INFO L85 PathProgramCache]: Analyzing trace with hash 809837522, now seen corresponding path program 1 times [2022-07-12 06:36:40,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:36:40,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027670749] [2022-07-12 06:36:40,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:36:40,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:36:40,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:40,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:36:40,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:40,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:36:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:40,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:36:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:41,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:36:41,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:41,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:36:41,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:41,055 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 06:36:41,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:36:41,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027670749] [2022-07-12 06:36:41,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027670749] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:36:41,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:36:41,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 06:36:41,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899887815] [2022-07-12 06:36:41,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:36:41,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 06:36:41,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:36:41,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 06:36:41,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 06:36:41,086 INFO L87 Difference]: Start difference. First operand has 353 states, 321 states have (on average 1.6604361370716512) internal successors, (533), 323 states have internal predecessors, (533), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 33.0) internal successors, (165), 3 states have internal predecessors, (165), 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 06:36:42,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:36:42,376 INFO L93 Difference]: Finished difference Result 824 states and 1366 transitions. [2022-07-12 06:36:42,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 06:36:42,378 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 3 states have internal predecessors, (165), 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 175 [2022-07-12 06:36:42,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:36:42,402 INFO L225 Difference]: With dead ends: 824 [2022-07-12 06:36:42,402 INFO L226 Difference]: Without dead ends: 477 [2022-07-12 06:36:42,420 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 06:36:42,422 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 941 mSDsluCounter, 369 mSDsCounter, 0 mSdLazyCounter, 652 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 963 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 708 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 652 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:36:42,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [963 Valid, 973 Invalid, 708 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 652 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 06:36:42,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-07-12 06:36:42,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 348. [2022-07-12 06:36:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 317 states have (on average 1.5646687697160884) internal successors, (496), 318 states have internal predecessors, (496), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-12 06:36:42,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 544 transitions. [2022-07-12 06:36:42,522 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 544 transitions. Word has length 175 [2022-07-12 06:36:42,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:36:42,523 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 544 transitions. [2022-07-12 06:36:42,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.0) internal successors, (165), 3 states have internal predecessors, (165), 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 06:36:42,524 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 544 transitions. [2022-07-12 06:36:42,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:36:42,526 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:36:42,527 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] [2022-07-12 06:36:42,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 06:36:42,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:36:42,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:36:42,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1760521452, now seen corresponding path program 1 times [2022-07-12 06:36:42,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:36:42,528 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040316770] [2022-07-12 06:36:42,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:36:42,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:36:42,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:42,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:36:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:42,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:36:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:42,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:36:42,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:42,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:36:42,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:42,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:36:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:42,715 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 06:36:42,716 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:36:42,716 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040316770] [2022-07-12 06:36:42,716 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040316770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:36:42,716 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:36:42,716 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 06:36:42,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993592940] [2022-07-12 06:36:42,717 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:36:42,718 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 06:36:42,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:36:42,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 06:36:42,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 06:36:42,720 INFO L87 Difference]: Start difference. First operand 348 states and 544 transitions. Second operand has 6 states, 6 states have (on average 27.5) internal successors, (165), 4 states have internal predecessors, (165), 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 06:36:44,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:36:44,878 INFO L93 Difference]: Finished difference Result 1279 states and 2055 transitions. [2022-07-12 06:36:44,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 06:36:44,879 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 4 states have internal predecessors, (165), 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 175 [2022-07-12 06:36:44,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:36:44,883 INFO L225 Difference]: With dead ends: 1279 [2022-07-12 06:36:44,899 INFO L226 Difference]: Without dead ends: 950 [2022-07-12 06:36:44,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-12 06:36:44,902 INFO L413 NwaCegarLoop]: 646 mSDtfsCounter, 1412 mSDsluCounter, 872 mSDsCounter, 0 mSdLazyCounter, 1820 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1429 SdHoareTripleChecker+Valid, 1518 SdHoareTripleChecker+Invalid, 1929 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 1820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2022-07-12 06:36:44,902 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1429 Valid, 1518 Invalid, 1929 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 1820 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2022-07-12 06:36:44,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 950 states. [2022-07-12 06:36:44,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 950 to 692. [2022-07-12 06:36:44,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 692 states, 635 states have (on average 1.5748031496062993) internal successors, (1000), 637 states have internal predecessors, (1000), 43 states have call successors, (43), 12 states have call predecessors, (43), 13 states have return successors, (46), 43 states have call predecessors, (46), 43 states have call successors, (46) [2022-07-12 06:36:44,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 692 states to 692 states and 1089 transitions. [2022-07-12 06:36:44,965 INFO L78 Accepts]: Start accepts. Automaton has 692 states and 1089 transitions. Word has length 175 [2022-07-12 06:36:44,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:36:44,966 INFO L495 AbstractCegarLoop]: Abstraction has 692 states and 1089 transitions. [2022-07-12 06:36:44,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.5) internal successors, (165), 4 states have internal predecessors, (165), 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 06:36:44,966 INFO L276 IsEmpty]: Start isEmpty. Operand 692 states and 1089 transitions. [2022-07-12 06:36:44,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:36:44,968 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:36:44,968 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] [2022-07-12 06:36:44,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 06:36:44,969 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:36:44,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:36:44,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1704816597, now seen corresponding path program 1 times [2022-07-12 06:36:44,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:36:44,970 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2000497212] [2022-07-12 06:36:44,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:36:44,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:36:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:45,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:36:45,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:45,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:36:45,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:45,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:36:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:45,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:36:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:45,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:36:45,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:45,121 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 06:36:45,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:36:45,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2000497212] [2022-07-12 06:36:45,121 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2000497212] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:36:45,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:36:45,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:36:45,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836310085] [2022-07-12 06:36:45,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:36:45,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:36:45,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:36:45,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:36:45,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:36:45,123 INFO L87 Difference]: Start difference. First operand 692 states and 1089 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:36:48,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:36:48,753 INFO L93 Difference]: Finished difference Result 2277 states and 3628 transitions. [2022-07-12 06:36:48,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:36:48,754 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:36:48,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:36:48,765 INFO L225 Difference]: With dead ends: 2277 [2022-07-12 06:36:48,766 INFO L226 Difference]: Without dead ends: 1604 [2022-07-12 06:36:48,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:36:48,776 INFO L413 NwaCegarLoop]: 1127 mSDtfsCounter, 1549 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 3577 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 2857 SdHoareTripleChecker+Invalid, 3650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 3577 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:36:48,779 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 2857 Invalid, 3650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 3577 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-12 06:36:48,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1604 states. [2022-07-12 06:36:48,876 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1604 to 1012. [2022-07-12 06:36:48,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 929 states have (on average 1.5672766415500539) internal successors, (1456), 932 states have internal predecessors, (1456), 62 states have call successors, (62), 18 states have call predecessors, (62), 20 states have return successors, (67), 63 states have call predecessors, (67), 62 states have call successors, (67) [2022-07-12 06:36:48,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1585 transitions. [2022-07-12 06:36:48,884 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1585 transitions. Word has length 175 [2022-07-12 06:36:48,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:36:48,884 INFO L495 AbstractCegarLoop]: Abstraction has 1012 states and 1585 transitions. [2022-07-12 06:36:48,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:36:48,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1585 transitions. [2022-07-12 06:36:48,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:36:48,887 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:36:48,887 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] [2022-07-12 06:36:48,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 06:36:48,888 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:36:48,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:36:48,889 INFO L85 PathProgramCache]: Analyzing trace with hash 299624919, now seen corresponding path program 1 times [2022-07-12 06:36:48,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:36:48,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027402811] [2022-07-12 06:36:48,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:36:48,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:36:48,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:48,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:36:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:48,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:36:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:48,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:36:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:49,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:36:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:49,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:36:49,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:49,020 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 06:36:49,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:36:49,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027402811] [2022-07-12 06:36:49,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027402811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:36:49,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:36:49,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:36:49,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740198575] [2022-07-12 06:36:49,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:36:49,022 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:36:49,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:36:49,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:36:49,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:36:49,024 INFO L87 Difference]: Start difference. First operand 1012 states and 1585 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:36:52,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:36:52,154 INFO L93 Difference]: Finished difference Result 3507 states and 5578 transitions. [2022-07-12 06:36:52,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:36:52,155 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:36:52,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:36:52,164 INFO L225 Difference]: With dead ends: 3507 [2022-07-12 06:36:52,165 INFO L226 Difference]: Without dead ends: 2514 [2022-07-12 06:36:52,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:36:52,168 INFO L413 NwaCegarLoop]: 1119 mSDtfsCounter, 1546 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 3579 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1563 SdHoareTripleChecker+Valid, 2849 SdHoareTripleChecker+Invalid, 3655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:36:52,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1563 Valid, 2849 Invalid, 3655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3579 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 06:36:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2514 states. [2022-07-12 06:36:52,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2514 to 1653. [2022-07-12 06:36:52,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1653 states, 1518 states have (on average 1.5606060606060606) internal successors, (2369), 1523 states have internal predecessors, (2369), 100 states have call successors, (100), 30 states have call predecessors, (100), 34 states have return successors, (113), 103 states have call predecessors, (113), 100 states have call successors, (113) [2022-07-12 06:36:52,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1653 states to 1653 states and 2582 transitions. [2022-07-12 06:36:52,274 INFO L78 Accepts]: Start accepts. Automaton has 1653 states and 2582 transitions. Word has length 175 [2022-07-12 06:36:52,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:36:52,274 INFO L495 AbstractCegarLoop]: Abstraction has 1653 states and 2582 transitions. [2022-07-12 06:36:52,275 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:36:52,275 INFO L276 IsEmpty]: Start isEmpty. Operand 1653 states and 2582 transitions. [2022-07-12 06:36:52,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:36:52,281 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:36:52,282 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] [2022-07-12 06:36:52,282 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 06:36:52,282 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:36:52,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:36:52,283 INFO L85 PathProgramCache]: Analyzing trace with hash -2101008491, now seen corresponding path program 1 times [2022-07-12 06:36:52,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:36:52,283 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651729449] [2022-07-12 06:36:52,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:36:52,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:36:52,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:52,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:36:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:52,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:36:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:52,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:36:52,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:52,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:36:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:52,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:36:52,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:52,398 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 06:36:52,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:36:52,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651729449] [2022-07-12 06:36:52,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651729449] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:36:52,399 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:36:52,400 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:36:52,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646073956] [2022-07-12 06:36:52,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:36:52,401 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:36:52,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:36:52,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:36:52,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:36:52,402 INFO L87 Difference]: Start difference. First operand 1653 states and 2582 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:36:55,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:36:55,705 INFO L93 Difference]: Finished difference Result 5874 states and 9307 transitions. [2022-07-12 06:36:55,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:36:55,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:36:55,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:36:55,721 INFO L225 Difference]: With dead ends: 5874 [2022-07-12 06:36:55,722 INFO L226 Difference]: Without dead ends: 4240 [2022-07-12 06:36:55,727 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:36:55,728 INFO L413 NwaCegarLoop]: 1115 mSDtfsCounter, 1542 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 3574 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1559 SdHoareTripleChecker+Valid, 2845 SdHoareTripleChecker+Invalid, 3650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:36:55,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1559 Valid, 2845 Invalid, 3650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3574 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 06:36:55,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2022-07-12 06:36:55,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 2936. [2022-07-12 06:36:55,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2697 states have (on average 1.5554319614386356) internal successors, (4195), 2706 states have internal predecessors, (4195), 176 states have call successors, (176), 54 states have call predecessors, (176), 62 states have return successors, (211), 183 states have call predecessors, (211), 176 states have call successors, (211) [2022-07-12 06:36:55,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 4582 transitions. [2022-07-12 06:36:55,988 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 4582 transitions. Word has length 175 [2022-07-12 06:36:55,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:36:55,989 INFO L495 AbstractCegarLoop]: Abstraction has 2936 states and 4582 transitions. [2022-07-12 06:36:55,989 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:36:55,989 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 4582 transitions. [2022-07-12 06:36:55,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:36:55,996 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:36:55,996 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] [2022-07-12 06:36:55,996 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 06:36:55,997 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:36:55,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:36:55,997 INFO L85 PathProgramCache]: Analyzing trace with hash -654427625, now seen corresponding path program 1 times [2022-07-12 06:36:55,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:36:55,998 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393228390] [2022-07-12 06:36:55,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:36:55,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:36:56,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:36:56,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,070 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:36:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:36:56,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:36:56,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:36:56,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:36:56,157 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 06:36:56,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:36:56,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393228390] [2022-07-12 06:36:56,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393228390] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:36:56,157 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:36:56,157 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:36:56,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552090559] [2022-07-12 06:36:56,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:36:56,158 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:36:56,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:36:56,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:36:56,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:36:56,159 INFO L87 Difference]: Start difference. First operand 2936 states and 4582 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:36:59,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:36:59,780 INFO L93 Difference]: Finished difference Result 10607 states and 16781 transitions. [2022-07-12 06:36:59,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:36:59,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:36:59,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:36:59,806 INFO L225 Difference]: With dead ends: 10607 [2022-07-12 06:36:59,807 INFO L226 Difference]: Without dead ends: 7690 [2022-07-12 06:36:59,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:36:59,821 INFO L413 NwaCegarLoop]: 1111 mSDtfsCounter, 1538 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 3569 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1555 SdHoareTripleChecker+Valid, 2841 SdHoareTripleChecker+Invalid, 3645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 3569 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 06:36:59,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1555 Valid, 2841 Invalid, 3645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 3569 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 06:36:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7690 states. [2022-07-12 06:37:00,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7690 to 5507. [2022-07-12 06:37:00,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5507 states, 5060 states have (on average 1.5519762845849803) internal successors, (7853), 5077 states have internal predecessors, (7853), 328 states have call successors, (328), 102 states have call predecessors, (328), 118 states have return successors, (425), 343 states have call predecessors, (425), 328 states have call successors, (425) [2022-07-12 06:37:00,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5507 states to 5507 states and 8606 transitions. [2022-07-12 06:37:00,131 INFO L78 Accepts]: Start accepts. Automaton has 5507 states and 8606 transitions. Word has length 175 [2022-07-12 06:37:00,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:00,132 INFO L495 AbstractCegarLoop]: Abstraction has 5507 states and 8606 transitions. [2022-07-12 06:37:00,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:00,132 INFO L276 IsEmpty]: Start isEmpty. Operand 5507 states and 8606 transitions. [2022-07-12 06:37:00,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:37:00,140 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:00,140 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] [2022-07-12 06:37:00,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 06:37:00,140 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:00,141 INFO L85 PathProgramCache]: Analyzing trace with hash -1577595051, now seen corresponding path program 1 times [2022-07-12 06:37:00,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:00,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746905325] [2022-07-12 06:37:00,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:00,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:00,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:37:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:37:00,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:37:00,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:37:00,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:00,245 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 06:37:00,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746905325] [2022-07-12 06:37:00,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746905325] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:00,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:00,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:00,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845163076] [2022-07-12 06:37:00,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:00,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:00,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:00,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:00,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:00,247 INFO L87 Difference]: Start difference. First operand 5507 states and 8606 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:04,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:04,136 INFO L93 Difference]: Finished difference Result 20072 states and 31787 transitions. [2022-07-12 06:37:04,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:04,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:37:04,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:04,189 INFO L225 Difference]: With dead ends: 20072 [2022-07-12 06:37:04,189 INFO L226 Difference]: Without dead ends: 14584 [2022-07-12 06:37:04,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:04,207 INFO L413 NwaCegarLoop]: 1105 mSDtfsCounter, 1537 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 3561 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1554 SdHoareTripleChecker+Valid, 2835 SdHoareTripleChecker+Invalid, 3640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 3561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:04,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1554 Valid, 2835 Invalid, 3640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 3561 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 06:37:04,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14584 states. [2022-07-12 06:37:04,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14584 to 10662. [2022-07-12 06:37:04,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10662 states, 9799 states have (on average 1.54985202571691) internal successors, (15187), 9832 states have internal predecessors, (15187), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2022-07-12 06:37:04,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10662 states to 10662 states and 16726 transitions. [2022-07-12 06:37:04,825 INFO L78 Accepts]: Start accepts. Automaton has 10662 states and 16726 transitions. Word has length 175 [2022-07-12 06:37:04,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:04,825 INFO L495 AbstractCegarLoop]: Abstraction has 10662 states and 16726 transitions. [2022-07-12 06:37:04,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:04,827 INFO L276 IsEmpty]: Start isEmpty. Operand 10662 states and 16726 transitions. [2022-07-12 06:37:04,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:37:04,839 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:04,839 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] [2022-07-12 06:37:04,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 06:37:04,840 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:04,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:04,840 INFO L85 PathProgramCache]: Analyzing trace with hash -1191732649, now seen corresponding path program 1 times [2022-07-12 06:37:04,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:04,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627735437] [2022-07-12 06:37:04,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:04,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:04,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:04,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:04,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:04,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:37:04,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:04,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:37:04,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:04,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:37:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:04,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:37:04,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:04,949 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 06:37:04,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:04,950 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627735437] [2022-07-12 06:37:04,950 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627735437] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:04,950 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:04,950 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:04,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912044877] [2022-07-12 06:37:04,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:04,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:04,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:04,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:04,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:04,952 INFO L87 Difference]: Start difference. First operand 10662 states and 16726 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:06,892 INFO L93 Difference]: Finished difference Result 25254 states and 40241 transitions. [2022-07-12 06:37:06,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:37:06,892 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:37:06,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:06,940 INFO L225 Difference]: With dead ends: 25254 [2022-07-12 06:37:06,940 INFO L226 Difference]: Without dead ends: 14611 [2022-07-12 06:37:06,967 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 06:37:06,967 INFO L413 NwaCegarLoop]: 542 mSDtfsCounter, 1085 mSDsluCounter, 859 mSDsCounter, 0 mSdLazyCounter, 1261 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 1401 SdHoareTripleChecker+Invalid, 1343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1261 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:06,968 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1103 Valid, 1401 Invalid, 1343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1261 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-12 06:37:06,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14611 states. [2022-07-12 06:37:07,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14611 to 10662. [2022-07-12 06:37:07,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10662 states, 9799 states have (on average 1.5464843351362383) internal successors, (15154), 9832 states have internal predecessors, (15154), 632 states have call successors, (632), 198 states have call predecessors, (632), 230 states have return successors, (907), 663 states have call predecessors, (907), 632 states have call successors, (907) [2022-07-12 06:37:07,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10662 states to 10662 states and 16693 transitions. [2022-07-12 06:37:07,601 INFO L78 Accepts]: Start accepts. Automaton has 10662 states and 16693 transitions. Word has length 175 [2022-07-12 06:37:07,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:07,601 INFO L495 AbstractCegarLoop]: Abstraction has 10662 states and 16693 transitions. [2022-07-12 06:37:07,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:07,602 INFO L276 IsEmpty]: Start isEmpty. Operand 10662 states and 16693 transitions. [2022-07-12 06:37:07,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:37:07,614 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:07,614 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] [2022-07-12 06:37:07,614 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 06:37:07,614 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:07,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:07,615 INFO L85 PathProgramCache]: Analyzing trace with hash 739392985, now seen corresponding path program 1 times [2022-07-12 06:37:07,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:07,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887971798] [2022-07-12 06:37:07,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:07,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:07,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:37:07,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:37:07,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:37:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:37:07,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:07,712 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 06:37:07,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:07,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887971798] [2022-07-12 06:37:07,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887971798] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:07,713 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:07,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:07,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649483947] [2022-07-12 06:37:07,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:07,713 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:07,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:07,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:07,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:07,714 INFO L87 Difference]: Start difference. First operand 10662 states and 16693 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:12,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:12,331 INFO L93 Difference]: Finished difference Result 38936 states and 61697 transitions. [2022-07-12 06:37:12,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:12,333 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:37:12,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:12,412 INFO L225 Difference]: With dead ends: 38936 [2022-07-12 06:37:12,412 INFO L226 Difference]: Without dead ends: 28293 [2022-07-12 06:37:12,440 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:12,441 INFO L413 NwaCegarLoop]: 1091 mSDtfsCounter, 1525 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1542 SdHoareTripleChecker+Valid, 2821 SdHoareTripleChecker+Invalid, 3602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:12,442 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1542 Valid, 2821 Invalid, 3602 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 06:37:12,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28293 states. [2022-07-12 06:37:13,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28293 to 21067. [2022-07-12 06:37:13,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21067 states, 19372 states have (on average 1.5451166632252735) internal successors, (29932), 19437 states have internal predecessors, (29932), 1240 states have call successors, (1240), 390 states have call predecessors, (1240), 454 states have return successors, (2033), 1303 states have call predecessors, (2033), 1240 states have call successors, (2033) [2022-07-12 06:37:13,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21067 states to 21067 states and 33205 transitions. [2022-07-12 06:37:13,704 INFO L78 Accepts]: Start accepts. Automaton has 21067 states and 33205 transitions. Word has length 175 [2022-07-12 06:37:13,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:13,705 INFO L495 AbstractCegarLoop]: Abstraction has 21067 states and 33205 transitions. [2022-07-12 06:37:13,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:13,705 INFO L276 IsEmpty]: Start isEmpty. Operand 21067 states and 33205 transitions. [2022-07-12 06:37:13,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:37:13,726 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:13,727 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] [2022-07-12 06:37:13,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 06:37:13,727 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:13,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:13,728 INFO L85 PathProgramCache]: Analyzing trace with hash -583785961, now seen corresponding path program 1 times [2022-07-12 06:37:13,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:13,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987285927] [2022-07-12 06:37:13,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:13,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:13,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:13,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:13,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:37:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:13,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:37:13,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:13,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:37:13,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:13,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:37:13,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:13,850 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 06:37:13,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:13,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987285927] [2022-07-12 06:37:13,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987285927] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:13,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:13,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:13,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66986286] [2022-07-12 06:37:13,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:13,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:13,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:13,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:13,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:13,852 INFO L87 Difference]: Start difference. First operand 21067 states and 33205 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:20,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:20,791 INFO L93 Difference]: Finished difference Result 76799 states and 122519 transitions. [2022-07-12 06:37:20,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:20,792 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:37:20,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:21,046 INFO L225 Difference]: With dead ends: 76799 [2022-07-12 06:37:21,047 INFO L226 Difference]: Without dead ends: 55751 [2022-07-12 06:37:21,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:21,118 INFO L413 NwaCegarLoop]: 1086 mSDtfsCounter, 1524 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 3514 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1541 SdHoareTripleChecker+Valid, 2816 SdHoareTripleChecker+Invalid, 3594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:21,120 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1541 Valid, 2816 Invalid, 3594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3514 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 06:37:21,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55751 states. [2022-07-12 06:37:23,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55751 to 41936. [2022-07-12 06:37:23,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41936 states, 38577 states have (on average 1.5442880472820593) internal successors, (59574), 38706 states have internal predecessors, (59574), 2456 states have call successors, (2456), 774 states have call predecessors, (2456), 902 states have return successors, (4771), 2583 states have call predecessors, (4771), 2456 states have call successors, (4771) [2022-07-12 06:37:24,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41936 states to 41936 states and 66801 transitions. [2022-07-12 06:37:24,118 INFO L78 Accepts]: Start accepts. Automaton has 41936 states and 66801 transitions. Word has length 175 [2022-07-12 06:37:24,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:24,118 INFO L495 AbstractCegarLoop]: Abstraction has 41936 states and 66801 transitions. [2022-07-12 06:37:24,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 41936 states and 66801 transitions. [2022-07-12 06:37:24,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:37:24,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:24,171 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] [2022-07-12 06:37:24,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 06:37:24,172 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:24,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:24,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1313193497, now seen corresponding path program 1 times [2022-07-12 06:37:24,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:24,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163720433] [2022-07-12 06:37:24,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:24,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:24,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:24,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:24,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:37:24,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:24,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:37:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:37:24,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:24,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:37:24,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:24,297 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 06:37:24,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:24,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163720433] [2022-07-12 06:37:24,298 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163720433] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:24,298 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:24,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:24,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885167469] [2022-07-12 06:37:24,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:24,299 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:24,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:24,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:24,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:24,300 INFO L87 Difference]: Start difference. First operand 41936 states and 66801 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:35,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:35,800 INFO L93 Difference]: Finished difference Result 152522 states and 246005 transitions. [2022-07-12 06:37:35,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-12 06:37:35,800 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:37:35,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:36,377 INFO L225 Difference]: With dead ends: 152522 [2022-07-12 06:37:36,378 INFO L226 Difference]: Without dead ends: 110605 [2022-07-12 06:37:36,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-07-12 06:37:36,547 INFO L413 NwaCegarLoop]: 1081 mSDtfsCounter, 1523 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 3506 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 2811 SdHoareTripleChecker+Invalid, 3586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 3506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:36,548 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 2811 Invalid, 3586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 3506 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 06:37:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110605 states. [2022-07-12 06:37:42,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110605 to 83801. [2022-07-12 06:37:42,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83801 states, 77114 states have (on average 1.5437923074928028) internal successors, (119048), 77371 states have internal predecessors, (119048), 4888 states have call successors, (4888), 1542 states have call predecessors, (4888), 1798 states have return successors, (11705), 5143 states have call predecessors, (11705), 4888 states have call successors, (11705) [2022-07-12 06:37:42,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83801 states to 83801 states and 135641 transitions. [2022-07-12 06:37:42,472 INFO L78 Accepts]: Start accepts. Automaton has 83801 states and 135641 transitions. Word has length 175 [2022-07-12 06:37:42,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:37:42,472 INFO L495 AbstractCegarLoop]: Abstraction has 83801 states and 135641 transitions. [2022-07-12 06:37:42,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:42,473 INFO L276 IsEmpty]: Start isEmpty. Operand 83801 states and 135641 transitions. [2022-07-12 06:37:42,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:37:42,552 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:37:42,552 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] [2022-07-12 06:37:42,552 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 06:37:42,552 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:37:42,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:37:42,553 INFO L85 PathProgramCache]: Analyzing trace with hash 1651481047, now seen corresponding path program 1 times [2022-07-12 06:37:42,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:37:42,553 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941268451] [2022-07-12 06:37:42,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:37:42,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:37:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:42,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:37:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:42,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:37:42,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:42,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:37:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:42,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:37:42,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:42,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:37:42,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:37:42,646 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 06:37:42,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:37:42,646 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941268451] [2022-07-12 06:37:42,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941268451] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:37:42,647 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:37:42,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:37:42,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688719076] [2022-07-12 06:37:42,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:37:42,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:37:42,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:37:42,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:37:42,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:37:42,648 INFO L87 Difference]: Start difference. First operand 83801 states and 135641 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:37:52,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 06:37:52,758 INFO L93 Difference]: Finished difference Result 195716 states and 323764 transitions. [2022-07-12 06:37:52,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 06:37:52,758 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 175 [2022-07-12 06:37:52,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 06:37:53,302 INFO L225 Difference]: With dead ends: 195716 [2022-07-12 06:37:53,302 INFO L226 Difference]: Without dead ends: 111934 [2022-07-12 06:37:53,528 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 06:37:53,529 INFO L413 NwaCegarLoop]: 561 mSDtfsCounter, 1178 mSDsluCounter, 677 mSDsCounter, 0 mSdLazyCounter, 1158 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1196 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 1263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-12 06:37:53,529 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1196 Valid, 1238 Invalid, 1263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1158 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-07-12 06:37:53,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111934 states. [2022-07-12 06:38:00,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111934 to 83801. [2022-07-12 06:38:00,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83801 states, 77114 states have (on average 1.5404595793241176) internal successors, (118791), 77371 states have internal predecessors, (118791), 4888 states have call successors, (4888), 1542 states have call predecessors, (4888), 1798 states have return successors, (11705), 5143 states have call predecessors, (11705), 4888 states have call successors, (11705) [2022-07-12 06:38:00,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83801 states to 83801 states and 135384 transitions. [2022-07-12 06:38:00,516 INFO L78 Accepts]: Start accepts. Automaton has 83801 states and 135384 transitions. Word has length 175 [2022-07-12 06:38:00,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 06:38:00,516 INFO L495 AbstractCegarLoop]: Abstraction has 83801 states and 135384 transitions. [2022-07-12 06:38:00,516 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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 06:38:00,516 INFO L276 IsEmpty]: Start isEmpty. Operand 83801 states and 135384 transitions. [2022-07-12 06:38:00,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-12 06:38:00,610 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 06:38:00,610 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] [2022-07-12 06:38:00,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 06:38:00,610 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 06:38:00,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 06:38:00,611 INFO L85 PathProgramCache]: Analyzing trace with hash 2078035545, now seen corresponding path program 1 times [2022-07-12 06:38:00,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 06:38:00,611 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2215575] [2022-07-12 06:38:00,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 06:38:00,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 06:38:00,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:00,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-12 06:38:00,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:00,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-12 06:38:00,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:00,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2022-07-12 06:38:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:00,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2022-07-12 06:38:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:00,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-07-12 06:38:00,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 06:38:00,723 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 06:38:00,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 06:38:00,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2215575] [2022-07-12 06:38:00,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2215575] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 06:38:00,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 06:38:00,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 06:38:00,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262845832] [2022-07-12 06:38:00,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 06:38:00,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 06:38:00,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 06:38:00,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 06:38:00,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 06:38:00,725 INFO L87 Difference]: Start difference. First operand 83801 states and 135384 transitions. Second operand has 7 states, 7 states have (on average 23.571428571428573) internal successors, (165), 5 states have internal predecessors, (165), 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)