./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 403fd15020889f127d837ab127be00e68706cbd07d6d3bacf6b25555a5c09975 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 19:47:07,194 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 19:47:07,197 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 19:47:07,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 19:47:07,243 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 19:47:07,245 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 19:47:07,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 19:47:07,247 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 19:47:07,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 19:47:07,250 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 19:47:07,250 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 19:47:07,252 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 19:47:07,252 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 19:47:07,253 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 19:47:07,254 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 19:47:07,255 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 19:47:07,256 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 19:47:07,257 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 19:47:07,259 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 19:47:07,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 19:47:07,262 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 19:47:07,263 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 19:47:07,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 19:47:07,265 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 19:47:07,266 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 19:47:07,269 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 19:47:07,269 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 19:47:07,269 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 19:47:07,270 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 19:47:07,271 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 19:47:07,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 19:47:07,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 19:47:07,273 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 19:47:07,273 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 19:47:07,274 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 19:47:07,275 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 19:47:07,275 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 19:47:07,276 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 19:47:07,276 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 19:47:07,276 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 19:47:07,277 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 19:47:07,278 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 19:47:07,279 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 19:47:07,300 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 19:47:07,300 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 19:47:07,301 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 19:47:07,301 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 19:47:07,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 19:47:07,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 19:47:07,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 19:47:07,303 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 19:47:07,303 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 19:47:07,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 19:47:07,304 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 19:47:07,304 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 19:47:07,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 19:47:07,304 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 19:47:07,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 19:47:07,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 19:47:07,305 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 19:47:07,305 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 19:47:07,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 19:47:07,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 19:47:07,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 19:47:07,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 19:47:07,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 19:47:07,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 19:47:07,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 19:47:07,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 19:47:07,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 19:47:07,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 19:47:07,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 19:47:07,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 19:47:07,309 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 19:47:07,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 19:47:07,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 19:47:07,309 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 403fd15020889f127d837ab127be00e68706cbd07d6d3bacf6b25555a5c09975 [2022-07-22 19:47:07,516 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 19:47:07,536 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 19:47:07,539 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 19:47:07,540 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 19:47:07,541 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 19:47:07,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-2.c [2022-07-22 19:47:07,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127dfe784/4bf470d3104a4583b498b6b501c2cf51/FLAG01dbe3631 [2022-07-22 19:47:08,404 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 19:47:08,405 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-2.c [2022-07-22 19:47:08,457 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127dfe784/4bf470d3104a4583b498b6b501c2cf51/FLAG01dbe3631 [2022-07-22 19:47:08,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/127dfe784/4bf470d3104a4583b498b6b501c2cf51 [2022-07-22 19:47:08,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 19:47:08,901 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 19:47:08,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 19:47:08,902 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 19:47:08,905 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 19:47:08,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 07:47:08" (1/1) ... [2022-07-22 19:47:08,908 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1365031a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:08, skipping insertion in model container [2022-07-22 19:47:08,909 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 07:47:08" (1/1) ... [2022-07-22 19:47:08,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 19:47:09,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 19:47:10,625 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-2.c[380593,380606] [2022-07-22 19:47:10,649 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-2.c[383339,383352] [2022-07-22 19:47:10,953 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 19:47:10,962 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 19:47:11,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-2.c[380593,380606] [2022-07-22 19:47:11,862 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-2.c[383339,383352] [2022-07-22 19:47:11,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 19:47:11,967 INFO L208 MainTranslator]: Completed translation [2022-07-22 19:47:11,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11 WrapperNode [2022-07-22 19:47:11,968 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 19:47:11,969 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 19:47:11,969 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 19:47:11,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 19:47:11,976 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:12,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:12,518 INFO L137 Inliner]: procedures = 70, calls = 80, calls flagged for inlining = 48, calls inlined = 48, statements flattened = 13257 [2022-07-22 19:47:12,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 19:47:12,519 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 19:47:12,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 19:47:12,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 19:47:12,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:12,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:12,598 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:12,599 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:12,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:12,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:12,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:13,009 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 19:47:13,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 19:47:13,011 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 19:47:13,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 19:47:13,013 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (1/1) ... [2022-07-22 19:47:13,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 19:47:13,029 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 19:47:13,045 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) [2022-07-22 19:47:13,065 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 [2022-07-22 19:47:13,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 19:47:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-22 19:47:13,078 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-22 19:47:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-22 19:47:13,078 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-22 19:47:13,078 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-22 19:47:13,078 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-22 19:47:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-22 19:47:13,079 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-22 19:47:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-22 19:47:13,079 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-22 19:47:13,079 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-22 19:47:13,079 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-22 19:47:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 19:47:13,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 19:47:13,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 19:47:13,245 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 19:47:13,246 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 19:47:19,552 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 19:47:19,585 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 19:47:19,586 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-22 19:47:19,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 07:47:19 BoogieIcfgContainer [2022-07-22 19:47:19,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 19:47:19,595 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 19:47:19,595 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 19:47:19,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 19:47:19,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 07:47:08" (1/3) ... [2022-07-22 19:47:19,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a537650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 07:47:19, skipping insertion in model container [2022-07-22 19:47:19,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:47:11" (2/3) ... [2022-07-22 19:47:19,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a537650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 07:47:19, skipping insertion in model container [2022-07-22 19:47:19,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 07:47:19" (3/3) ... [2022-07-22 19:47:19,601 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.13.cil-2.c [2022-07-22 19:47:19,614 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 19:47:19,614 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 19:47:19,710 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 19:47:19,716 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@70c286e9, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@7f2176d5 [2022-07-22 19:47:19,716 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 19:47:19,731 INFO L276 IsEmpty]: Start isEmpty. Operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-22 19:47:19,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:19,749 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:19,750 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:19,750 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:19,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:19,755 INFO L85 PathProgramCache]: Analyzing trace with hash -521467325, now seen corresponding path program 1 times [2022-07-22 19:47:19,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:19,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423479640] [2022-07-22 19:47:19,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:19,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:19,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:19,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:20,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:20,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:20,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:20,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:20,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:20,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:20,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:20,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:20,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423479640] [2022-07-22 19:47:20,167 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423479640] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:20,167 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:20,167 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 19:47:20,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383050125] [2022-07-22 19:47:20,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:20,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 19:47:20,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:20,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 19:47:20,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 19:47:20,209 INFO L87 Difference]: Start difference. First operand has 2590 states, 2554 states have (on average 1.841816758026625) internal successors, (4704), 2557 states have internal predecessors, (4704), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:22,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:47:22,222 INFO L93 Difference]: Finished difference Result 5325 states and 9765 transitions. [2022-07-22 19:47:22,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 19:47:22,229 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:47:22,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:47:22,257 INFO L225 Difference]: With dead ends: 5325 [2022-07-22 19:47:22,258 INFO L226 Difference]: Without dead ends: 2676 [2022-07-22 19:47:22,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 19:47:22,270 INFO L413 NwaCegarLoop]: 4729 mSDtfsCounter, 1107 mSDsluCounter, 12491 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 17220 SdHoareTripleChecker+Invalid, 838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-22 19:47:22,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 17220 Invalid, 838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-22 19:47:22,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-07-22 19:47:22,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-07-22 19:47:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8243569131832797) internal successors, (4539), 2490 states have internal predecessors, (4539), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-22 19:47:22,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4593 transitions. [2022-07-22 19:47:22,523 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4593 transitions. Word has length 189 [2022-07-22 19:47:22,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:47:22,524 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4593 transitions. [2022-07-22 19:47:22,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:22,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4593 transitions. [2022-07-22 19:47:22,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:22,529 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:22,529 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:22,529 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 19:47:22,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:22,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:22,530 INFO L85 PathProgramCache]: Analyzing trace with hash 1444519429, now seen corresponding path program 1 times [2022-07-22 19:47:22,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:22,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [543577939] [2022-07-22 19:47:22,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:22,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:22,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:22,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:22,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:22,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:22,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:22,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:22,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:22,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:22,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:22,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:22,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [543577939] [2022-07-22 19:47:22,771 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [543577939] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:22,771 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:22,771 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 19:47:22,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122132853] [2022-07-22 19:47:22,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:22,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 19:47:22,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:22,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 19:47:22,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 19:47:22,774 INFO L87 Difference]: Start difference. First operand 2523 states and 4593 transitions. Second operand has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:24,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:47:24,284 INFO L93 Difference]: Finished difference Result 3061 states and 5463 transitions. [2022-07-22 19:47:24,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 19:47:24,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:47:24,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:47:24,299 INFO L225 Difference]: With dead ends: 3061 [2022-07-22 19:47:24,300 INFO L226 Difference]: Without dead ends: 2676 [2022-07-22 19:47:24,302 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 [2022-07-22 19:47:24,303 INFO L413 NwaCegarLoop]: 4659 mSDtfsCounter, 1093 mSDsluCounter, 12288 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 16947 SdHoareTripleChecker+Invalid, 837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-22 19:47:24,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1118 Valid, 16947 Invalid, 837 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-07-22 19:47:24,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2676 states. [2022-07-22 19:47:24,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2676 to 2523. [2022-07-22 19:47:24,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2523 states, 2488 states have (on average 1.8239549839228295) internal successors, (4538), 2490 states have internal predecessors, (4538), 27 states have call successors, (27), 6 states have call predecessors, (27), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-22 19:47:24,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 4592 transitions. [2022-07-22 19:47:24,380 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 4592 transitions. Word has length 189 [2022-07-22 19:47:24,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:47:24,380 INFO L495 AbstractCegarLoop]: Abstraction has 2523 states and 4592 transitions. [2022-07-22 19:47:24,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.8) internal successors, (179), 3 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:24,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 4592 transitions. [2022-07-22 19:47:24,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:24,383 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:24,384 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:24,384 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 19:47:24,384 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:24,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:24,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1347349561, now seen corresponding path program 1 times [2022-07-22 19:47:24,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:24,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188705493] [2022-07-22 19:47:24,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:24,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:24,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:24,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:24,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:24,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:24,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:24,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:24,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:24,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:24,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:24,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:24,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:24,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:24,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:24,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188705493] [2022-07-22 19:47:24,576 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188705493] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:24,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:24,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 19:47:24,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367805835] [2022-07-22 19:47:24,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:24,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 19:47:24,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:24,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 19:47:24,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 19:47:24,579 INFO L87 Difference]: Start difference. First operand 2523 states and 4592 transitions. Second operand has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:27,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:47:27,752 INFO L93 Difference]: Finished difference Result 3611 states and 6359 transitions. [2022-07-22 19:47:27,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-22 19:47:27,752 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:47:27,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:47:27,766 INFO L225 Difference]: With dead ends: 3611 [2022-07-22 19:47:27,767 INFO L226 Difference]: Without dead ends: 3230 [2022-07-22 19:47:27,769 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-22 19:47:27,770 INFO L413 NwaCegarLoop]: 4715 mSDtfsCounter, 5624 mSDsluCounter, 12879 mSDsCounter, 0 mSdLazyCounter, 2160 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5644 SdHoareTripleChecker+Valid, 17594 SdHoareTripleChecker+Invalid, 2280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 2160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-22 19:47:27,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5644 Valid, 17594 Invalid, 2280 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [120 Valid, 2160 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-22 19:47:27,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2022-07-22 19:47:27,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2925. [2022-07-22 19:47:27,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2925 states, 2861 states have (on average 1.7948269835721775) internal successors, (5135), 2864 states have internal predecessors, (5135), 49 states have call successors, (49), 12 states have call predecessors, (49), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-07-22 19:47:27,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 5236 transitions. [2022-07-22 19:47:27,870 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 5236 transitions. Word has length 189 [2022-07-22 19:47:27,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:47:27,871 INFO L495 AbstractCegarLoop]: Abstraction has 2925 states and 5236 transitions. [2022-07-22 19:47:27,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.833333333333332) internal successors, (179), 4 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:27,872 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 5236 transitions. [2022-07-22 19:47:27,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:27,874 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:27,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:27,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 19:47:27,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:27,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:27,876 INFO L85 PathProgramCache]: Analyzing trace with hash 671278923, now seen corresponding path program 1 times [2022-07-22 19:47:27,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:27,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17258892] [2022-07-22 19:47:27,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:27,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:27,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:27,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:27,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:27,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:28,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:28,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:28,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:28,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:28,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:28,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:28,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:28,071 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17258892] [2022-07-22 19:47:28,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17258892] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:28,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:28,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:47:28,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473720148] [2022-07-22 19:47:28,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:28,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:47:28,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:28,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:47:28,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:47:28,074 INFO L87 Difference]: Start difference. First operand 2925 states and 5236 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:31,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:47:31,950 INFO L93 Difference]: Finished difference Result 4589 states and 7942 transitions. [2022-07-22 19:47:31,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:47:31,951 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:47:31,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:47:31,969 INFO L225 Difference]: With dead ends: 4589 [2022-07-22 19:47:31,969 INFO L226 Difference]: Without dead ends: 3806 [2022-07-22 19:47:31,974 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:47:31,975 INFO L413 NwaCegarLoop]: 5036 mSDtfsCounter, 5662 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3353 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5682 SdHoareTripleChecker+Valid, 22865 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 3353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-22 19:47:31,976 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5682 Valid, 22865 Invalid, 3435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [82 Valid, 3353 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-22 19:47:31,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3806 states. [2022-07-22 19:47:32,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3806 to 3298. [2022-07-22 19:47:32,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3298 states, 3205 states have (on average 1.7703588143525741) internal successors, (5674), 3209 states have internal predecessors, (5674), 71 states have call successors, (71), 18 states have call predecessors, (71), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-07-22 19:47:32,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3298 states to 3298 states and 5821 transitions. [2022-07-22 19:47:32,130 INFO L78 Accepts]: Start accepts. Automaton has 3298 states and 5821 transitions. Word has length 189 [2022-07-22 19:47:32,130 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:47:32,131 INFO L495 AbstractCegarLoop]: Abstraction has 3298 states and 5821 transitions. [2022-07-22 19:47:32,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:32,136 INFO L276 IsEmpty]: Start isEmpty. Operand 3298 states and 5821 transitions. [2022-07-22 19:47:32,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:32,144 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:32,144 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:32,145 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 19:47:32,145 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:32,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:32,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1053329399, now seen corresponding path program 1 times [2022-07-22 19:47:32,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:32,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216890835] [2022-07-22 19:47:32,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:32,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:32,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:32,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:32,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:32,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:32,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:32,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:32,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:32,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:32,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:32,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:32,340 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216890835] [2022-07-22 19:47:32,340 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216890835] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:32,341 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:32,341 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:47:32,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726987492] [2022-07-22 19:47:32,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:32,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:47:32,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:32,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:47:32,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:47:32,344 INFO L87 Difference]: Start difference. First operand 3298 states and 5821 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:36,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:47:36,417 INFO L93 Difference]: Finished difference Result 6030 states and 10255 transitions. [2022-07-22 19:47:36,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:47:36,418 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:47:36,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:47:36,445 INFO L225 Difference]: With dead ends: 6030 [2022-07-22 19:47:36,445 INFO L226 Difference]: Without dead ends: 4874 [2022-07-22 19:47:36,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:47:36,460 INFO L413 NwaCegarLoop]: 5024 mSDtfsCounter, 5656 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5676 SdHoareTripleChecker+Valid, 22853 SdHoareTripleChecker+Invalid, 3426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2022-07-22 19:47:36,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5676 Valid, 22853 Invalid, 3426 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2022-07-22 19:47:36,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4874 states. [2022-07-22 19:47:36,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4874 to 4048. [2022-07-22 19:47:36,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4048 states, 3897 states have (on average 1.7344110854503465) internal successors, (6759), 3903 states have internal predecessors, (6759), 115 states have call successors, (115), 30 states have call predecessors, (115), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-07-22 19:47:36,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4048 states to 4048 states and 7002 transitions. [2022-07-22 19:47:36,678 INFO L78 Accepts]: Start accepts. Automaton has 4048 states and 7002 transitions. Word has length 189 [2022-07-22 19:47:36,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:47:36,678 INFO L495 AbstractCegarLoop]: Abstraction has 4048 states and 7002 transitions. [2022-07-22 19:47:36,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:36,679 INFO L276 IsEmpty]: Start isEmpty. Operand 4048 states and 7002 transitions. [2022-07-22 19:47:36,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:36,682 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:36,682 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:36,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 19:47:36,683 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:36,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:36,684 INFO L85 PathProgramCache]: Analyzing trace with hash -483057593, now seen corresponding path program 1 times [2022-07-22 19:47:36,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:36,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930416376] [2022-07-22 19:47:36,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:36,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:36,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:36,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:36,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:36,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:36,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:36,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:36,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:36,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:36,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:36,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:36,875 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930416376] [2022-07-22 19:47:36,876 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930416376] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:36,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:36,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:47:36,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507649729] [2022-07-22 19:47:36,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:36,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:47:36,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:36,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:47:36,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:47:36,878 INFO L87 Difference]: Start difference. First operand 4048 states and 7002 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:40,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:47:40,877 INFO L93 Difference]: Finished difference Result 8806 states and 14680 transitions. [2022-07-22 19:47:40,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:47:40,877 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:47:40,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:47:40,910 INFO L225 Difference]: With dead ends: 8806 [2022-07-22 19:47:40,911 INFO L226 Difference]: Without dead ends: 6900 [2022-07-22 19:47:40,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:47:40,922 INFO L413 NwaCegarLoop]: 5019 mSDtfsCounter, 5655 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3334 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5675 SdHoareTripleChecker+Valid, 22848 SdHoareTripleChecker+Invalid, 3418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-07-22 19:47:40,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5675 Valid, 22848 Invalid, 3418 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3334 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2022-07-22 19:47:40,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6900 states. [2022-07-22 19:47:41,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6900 to 5549. [2022-07-22 19:47:41,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5549 states, 5282 states have (on average 1.690458159787959) internal successors, (8929), 5292 states have internal predecessors, (8929), 203 states have call successors, (203), 54 states have call predecessors, (203), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-07-22 19:47:41,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5549 states to 5549 states and 9370 transitions. [2022-07-22 19:47:41,250 INFO L78 Accepts]: Start accepts. Automaton has 5549 states and 9370 transitions. Word has length 189 [2022-07-22 19:47:41,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:47:41,251 INFO L495 AbstractCegarLoop]: Abstraction has 5549 states and 9370 transitions. [2022-07-22 19:47:41,251 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:41,251 INFO L276 IsEmpty]: Start isEmpty. Operand 5549 states and 9370 transitions. [2022-07-22 19:47:41,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:41,255 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:41,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:41,256 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 19:47:41,256 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:41,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:41,256 INFO L85 PathProgramCache]: Analyzing trace with hash 920811593, now seen corresponding path program 1 times [2022-07-22 19:47:41,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:41,257 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963034213] [2022-07-22 19:47:41,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:41,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:41,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:41,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:41,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:41,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:41,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:41,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:41,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:41,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:41,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:41,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:41,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:41,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963034213] [2022-07-22 19:47:41,441 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963034213] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:41,441 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:41,441 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:47:41,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [118781820] [2022-07-22 19:47:41,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:41,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:47:41,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:41,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:47:41,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:47:41,443 INFO L87 Difference]: Start difference. First operand 5549 states and 9370 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:45,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:47:45,194 INFO L93 Difference]: Finished difference Result 14357 states and 23546 transitions. [2022-07-22 19:47:45,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:47:45,194 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:47:45,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:47:45,237 INFO L225 Difference]: With dead ends: 14357 [2022-07-22 19:47:45,237 INFO L226 Difference]: Without dead ends: 10950 [2022-07-22 19:47:45,257 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:47:45,258 INFO L413 NwaCegarLoop]: 5014 mSDtfsCounter, 5654 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3326 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5674 SdHoareTripleChecker+Valid, 22843 SdHoareTripleChecker+Invalid, 3410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-22 19:47:45,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5674 Valid, 22843 Invalid, 3410 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3326 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-22 19:47:45,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10950 states. [2022-07-22 19:47:45,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10950 to 8558. [2022-07-22 19:47:45,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8558 states, 8059 states have (on average 1.6477230425611118) internal successors, (13279), 8077 states have internal predecessors, (13279), 379 states have call successors, (379), 102 states have call predecessors, (379), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-07-22 19:47:45,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8558 states to 8558 states and 14134 transitions. [2022-07-22 19:47:45,828 INFO L78 Accepts]: Start accepts. Automaton has 8558 states and 14134 transitions. Word has length 189 [2022-07-22 19:47:45,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:47:45,829 INFO L495 AbstractCegarLoop]: Abstraction has 8558 states and 14134 transitions. [2022-07-22 19:47:45,829 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:45,829 INFO L276 IsEmpty]: Start isEmpty. Operand 8558 states and 14134 transitions. [2022-07-22 19:47:45,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:45,835 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:45,835 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:45,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 19:47:45,839 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:45,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:45,839 INFO L85 PathProgramCache]: Analyzing trace with hash 134813703, now seen corresponding path program 1 times [2022-07-22 19:47:45,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:45,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342684872] [2022-07-22 19:47:45,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:45,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:45,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:45,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:45,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:45,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:45,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:45,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:45,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:45,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:46,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:46,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:46,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:46,008 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342684872] [2022-07-22 19:47:46,008 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342684872] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:46,008 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:46,008 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:47:46,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581930941] [2022-07-22 19:47:46,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:46,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:47:46,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:46,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:47:46,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:47:46,010 INFO L87 Difference]: Start difference. First operand 8558 states and 14134 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:50,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:47:50,048 INFO L93 Difference]: Finished difference Result 25460 states and 41340 transitions. [2022-07-22 19:47:50,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:47:50,048 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:47:50,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:47:50,110 INFO L225 Difference]: With dead ends: 25460 [2022-07-22 19:47:50,111 INFO L226 Difference]: Without dead ends: 19044 [2022-07-22 19:47:50,138 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:47:50,139 INFO L413 NwaCegarLoop]: 4750 mSDtfsCounter, 5763 mSDsluCounter, 17145 mSDsCounter, 0 mSdLazyCounter, 2957 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5783 SdHoareTripleChecker+Valid, 21895 SdHoareTripleChecker+Invalid, 3079 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 2957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-22 19:47:50,139 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5783 Valid, 21895 Invalid, 3079 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [122 Valid, 2957 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-22 19:47:50,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19044 states. [2022-07-22 19:47:50,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19044 to 14591. [2022-07-22 19:47:50,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.6143968300557676) internal successors, (22001), 13662 states have internal predecessors, (22001), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-22 19:47:51,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23738 transitions. [2022-07-22 19:47:51,011 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23738 transitions. Word has length 189 [2022-07-22 19:47:51,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:47:51,011 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23738 transitions. [2022-07-22 19:47:51,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:51,012 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23738 transitions. [2022-07-22 19:47:51,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:51,021 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:51,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:51,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 19:47:51,021 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:51,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:51,022 INFO L85 PathProgramCache]: Analyzing trace with hash 802195593, now seen corresponding path program 1 times [2022-07-22 19:47:51,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:51,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568636528] [2022-07-22 19:47:51,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:51,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:51,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:51,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:51,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:51,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:51,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:51,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:51,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:51,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:51,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:51,198 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568636528] [2022-07-22 19:47:51,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568636528] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:51,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:51,199 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:47:51,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988140945] [2022-07-22 19:47:51,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:51,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:47:51,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:51,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:47:51,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:47:51,203 INFO L87 Difference]: Start difference. First operand 14591 states and 23738 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:54,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:47:54,056 INFO L93 Difference]: Finished difference Result 31774 states and 51709 transitions. [2022-07-22 19:47:54,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 19:47:54,057 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:47:54,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:47:54,121 INFO L225 Difference]: With dead ends: 31774 [2022-07-22 19:47:54,121 INFO L226 Difference]: Without dead ends: 19325 [2022-07-22 19:47:54,165 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-22 19:47:54,165 INFO L413 NwaCegarLoop]: 4637 mSDtfsCounter, 5161 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1585 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5182 SdHoareTripleChecker+Valid, 21461 SdHoareTripleChecker+Invalid, 1672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 1585 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 19:47:54,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5182 Valid, 21461 Invalid, 1672 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 1585 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 19:47:54,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19325 states. [2022-07-22 19:47:55,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19325 to 14591. [2022-07-22 19:47:55,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14591 states, 13628 states have (on average 1.611975344878192) internal successors, (21968), 13662 states have internal predecessors, (21968), 731 states have call successors, (731), 198 states have call predecessors, (731), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-22 19:47:55,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14591 states to 14591 states and 23705 transitions. [2022-07-22 19:47:55,161 INFO L78 Accepts]: Start accepts. Automaton has 14591 states and 23705 transitions. Word has length 189 [2022-07-22 19:47:55,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:47:55,162 INFO L495 AbstractCegarLoop]: Abstraction has 14591 states and 23705 transitions. [2022-07-22 19:47:55,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:47:55,162 INFO L276 IsEmpty]: Start isEmpty. Operand 14591 states and 23705 transitions. [2022-07-22 19:47:55,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:47:55,171 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:47:55,171 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:47:55,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 19:47:55,171 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:47:55,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:47:55,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1393033273, now seen corresponding path program 1 times [2022-07-22 19:47:55,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:47:55,172 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762212097] [2022-07-22 19:47:55,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:47:55,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:47:55,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:55,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:47:55,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:55,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:47:55,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:55,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:47:55,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:55,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:47:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:55,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:47:55,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:47:55,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:47:55,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:47:55,318 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762212097] [2022-07-22 19:47:55,318 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762212097] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:47:55,318 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:47:55,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:47:55,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941129278] [2022-07-22 19:47:55,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:47:55,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:47:55,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:47:55,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:47:55,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:47:55,320 INFO L87 Difference]: Start difference. First operand 14591 states and 23705 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:48:00,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:48:00,902 INFO L93 Difference]: Finished difference Result 47633 states and 76890 transitions. [2022-07-22 19:48:00,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:48:00,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:48:00,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:48:01,034 INFO L225 Difference]: With dead ends: 47633 [2022-07-22 19:48:01,034 INFO L226 Difference]: Without dead ends: 35184 [2022-07-22 19:48:01,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:48:01,075 INFO L413 NwaCegarLoop]: 4998 mSDtfsCounter, 5645 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3291 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5665 SdHoareTripleChecker+Valid, 22827 SdHoareTripleChecker+Invalid, 3375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 3291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-22 19:48:01,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5665 Valid, 22827 Invalid, 3375 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [84 Valid, 3291 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-22 19:48:01,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35184 states. [2022-07-22 19:48:02,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35184 to 26721. [2022-07-22 19:48:02,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26721 states, 24830 states have (on average 1.5892066049134113) internal successors, (39460), 24896 states have internal predecessors, (39460), 1435 states have call successors, (1435), 390 states have call predecessors, (1435), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-07-22 19:48:03,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26721 states to 26721 states and 43123 transitions. [2022-07-22 19:48:03,055 INFO L78 Accepts]: Start accepts. Automaton has 26721 states and 43123 transitions. Word has length 189 [2022-07-22 19:48:03,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:48:03,055 INFO L495 AbstractCegarLoop]: Abstraction has 26721 states and 43123 transitions. [2022-07-22 19:48:03,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:48:03,056 INFO L276 IsEmpty]: Start isEmpty. Operand 26721 states and 43123 transitions. [2022-07-22 19:48:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:48:03,073 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:48:03,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:48:03,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 19:48:03,074 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:48:03,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:48:03,074 INFO L85 PathProgramCache]: Analyzing trace with hash -1048205111, now seen corresponding path program 1 times [2022-07-22 19:48:03,074 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:48:03,074 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38135765] [2022-07-22 19:48:03,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:48:03,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:48:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:03,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:48:03,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:03,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:48:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:03,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:48:03,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:03,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:48:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:03,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:48:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:03,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:48:03,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:48:03,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38135765] [2022-07-22 19:48:03,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38135765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:48:03,222 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:48:03,222 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:48:03,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335007832] [2022-07-22 19:48:03,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:48:03,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:48:03,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:48:03,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:48:03,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:48:03,224 INFO L87 Difference]: Start difference. First operand 26721 states and 43123 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:48:11,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:48:11,658 INFO L93 Difference]: Finished difference Result 92049 states and 148866 transitions. [2022-07-22 19:48:11,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:48:11,659 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:48:11,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:48:11,964 INFO L225 Difference]: With dead ends: 92049 [2022-07-22 19:48:11,965 INFO L226 Difference]: Without dead ends: 67470 [2022-07-22 19:48:12,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:48:12,039 INFO L413 NwaCegarLoop]: 4991 mSDtfsCounter, 5647 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3280 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5667 SdHoareTripleChecker+Valid, 22820 SdHoareTripleChecker+Invalid, 3367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-22 19:48:12,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5667 Valid, 22820 Invalid, 3367 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 3280 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-22 19:48:12,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67470 states. [2022-07-22 19:48:16,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67470 to 51042. [2022-07-22 19:48:16,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.575938259858336) internal successors, (74534), 47425 states have internal predecessors, (74534), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-22 19:48:16,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82535 transitions. [2022-07-22 19:48:16,242 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82535 transitions. Word has length 189 [2022-07-22 19:48:16,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:48:16,243 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82535 transitions. [2022-07-22 19:48:16,243 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:48:16,243 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82535 transitions. [2022-07-22 19:48:16,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:48:16,277 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:48:16,277 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:48:16,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-22 19:48:16,278 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:48:16,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:48:16,278 INFO L85 PathProgramCache]: Analyzing trace with hash -67250297, now seen corresponding path program 1 times [2022-07-22 19:48:16,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:48:16,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590981528] [2022-07-22 19:48:16,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:48:16,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:48:16,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:16,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:48:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:16,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:48:16,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:16,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:48:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:16,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:48:16,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:16,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:48:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:16,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:48:16,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:48:16,443 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590981528] [2022-07-22 19:48:16,443 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1590981528] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:48:16,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:48:16,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:48:16,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011631391] [2022-07-22 19:48:16,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:48:16,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:48:16,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:48:16,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:48:16,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:48:16,445 INFO L87 Difference]: Start difference. First operand 51042 states and 82535 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:48:24,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:48:24,094 INFO L93 Difference]: Finished difference Result 117340 states and 192222 transitions. [2022-07-22 19:48:24,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 19:48:24,094 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:48:24,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:48:24,485 INFO L225 Difference]: With dead ends: 117340 [2022-07-22 19:48:24,485 INFO L226 Difference]: Without dead ends: 68440 [2022-07-22 19:48:24,625 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-22 19:48:24,626 INFO L413 NwaCegarLoop]: 4623 mSDtfsCounter, 5162 mSDsluCounter, 16824 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5183 SdHoareTripleChecker+Valid, 21447 SdHoareTripleChecker+Invalid, 1640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-22 19:48:24,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5183 Valid, 21447 Invalid, 1640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-22 19:48:24,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68440 states. [2022-07-22 19:48:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68440 to 51042. [2022-07-22 19:48:28,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51042 states, 47295 states have (on average 1.5732106988053705) internal successors, (74405), 47425 states have internal predecessors, (74405), 2843 states have call successors, (2843), 774 states have call predecessors, (2843), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-22 19:48:28,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51042 states to 51042 states and 82406 transitions. [2022-07-22 19:48:28,916 INFO L78 Accepts]: Start accepts. Automaton has 51042 states and 82406 transitions. Word has length 189 [2022-07-22 19:48:28,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:48:28,917 INFO L495 AbstractCegarLoop]: Abstraction has 51042 states and 82406 transitions. [2022-07-22 19:48:28,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:48:28,917 INFO L276 IsEmpty]: Start isEmpty. Operand 51042 states and 82406 transitions. [2022-07-22 19:48:28,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:48:28,947 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:48:28,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:48:28,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-22 19:48:28,947 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:48:28,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:48:28,947 INFO L85 PathProgramCache]: Analyzing trace with hash -678519355, now seen corresponding path program 1 times [2022-07-22 19:48:28,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:48:28,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403788058] [2022-07-22 19:48:28,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:48:28,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:48:28,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:28,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:48:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:48:29,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:29,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:48:29,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:29,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:48:29,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:29,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:48:29,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:29,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:48:29,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:48:29,148 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403788058] [2022-07-22 19:48:29,148 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403788058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:48:29,148 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:48:29,148 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:48:29,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718498366] [2022-07-22 19:48:29,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:48:29,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:48:29,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:48:29,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:48:29,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:48:29,150 INFO L87 Difference]: Start difference. First operand 51042 states and 82406 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:48:44,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:48:44,475 INFO L93 Difference]: Finished difference Result 180620 states and 293500 transitions. [2022-07-22 19:48:44,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:48:44,476 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 189 [2022-07-22 19:48:44,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:48:44,942 INFO L225 Difference]: With dead ends: 180620 [2022-07-22 19:48:44,942 INFO L226 Difference]: Without dead ends: 131720 [2022-07-22 19:48:45,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:48:45,090 INFO L413 NwaCegarLoop]: 4976 mSDtfsCounter, 5635 mSDsluCounter, 17829 mSDsCounter, 0 mSdLazyCounter, 3243 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5655 SdHoareTripleChecker+Valid, 22805 SdHoareTripleChecker+Invalid, 3330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 3243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-22 19:48:45,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5655 Valid, 22805 Invalid, 3330 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [87 Valid, 3243 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-22 19:48:45,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131720 states. [2022-07-22 19:48:53,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131720 to 100069. [2022-07-22 19:48:53,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100069 states, 92610 states have (on average 1.5657380412482453) internal successors, (145003), 92868 states have internal predecessors, (145003), 5659 states have call successors, (5659), 1542 states have call predecessors, (5659), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2022-07-22 19:48:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100069 states to 100069 states and 163138 transitions. [2022-07-22 19:48:53,863 INFO L78 Accepts]: Start accepts. Automaton has 100069 states and 163138 transitions. Word has length 189 [2022-07-22 19:48:53,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:48:53,864 INFO L495 AbstractCegarLoop]: Abstraction has 100069 states and 163138 transitions. [2022-07-22 19:48:53,864 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:48:53,864 INFO L276 IsEmpty]: Start isEmpty. Operand 100069 states and 163138 transitions. [2022-07-22 19:48:53,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-07-22 19:48:53,915 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:48:53,915 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 19:48:53,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-22 19:48:53,915 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:48:53,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:48:53,916 INFO L85 PathProgramCache]: Analyzing trace with hash -2083711033, now seen corresponding path program 1 times [2022-07-22 19:48:53,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:48:53,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303151047] [2022-07-22 19:48:53,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:48:53,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:48:53,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:53,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:48:53,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:54,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-22 19:48:54,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:54,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-22 19:48:54,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:54,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-22 19:48:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:54,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-22 19:48:54,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:48:54,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:48:54,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:48:54,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303151047] [2022-07-22 19:48:54,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303151047] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:48:54,091 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:48:54,091 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:48:54,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57302239] [2022-07-22 19:48:54,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:48:54,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:48:54,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:48:54,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:48:54,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:48:54,093 INFO L87 Difference]: Start difference. First operand 100069 states and 163138 transitions. Second operand has 7 states, 7 states have (on average 25.571428571428573) internal successors, (179), 5 states have internal predecessors, (179), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)