./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6c24879c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.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 21d4f13e72175539cc78aacb8d1d416269d0755bd0c7a4b3f37d9d8805a7ca70 --- Real Ultimate output --- This is Ultimate 0.2.2-?-6c24879 [2022-07-12 08:29:37,330 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-12 08:29:37,332 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-12 08:29:37,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-12 08:29:37,368 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-12 08:29:37,369 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-12 08:29:37,373 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-12 08:29:37,375 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-12 08:29:37,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-12 08:29:37,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-12 08:29:37,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-12 08:29:37,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-12 08:29:37,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-12 08:29:37,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-12 08:29:37,389 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-12 08:29:37,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-12 08:29:37,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-12 08:29:37,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-12 08:29:37,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-12 08:29:37,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-12 08:29:37,397 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-12 08:29:37,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-12 08:29:37,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-12 08:29:37,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-12 08:29:37,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-12 08:29:37,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-12 08:29:37,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-12 08:29:37,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-12 08:29:37,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-12 08:29:37,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-12 08:29:37,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-12 08:29:37,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-12 08:29:37,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-12 08:29:37,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-12 08:29:37,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-12 08:29:37,408 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-12 08:29:37,408 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-12 08:29:37,409 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-12 08:29:37,409 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-12 08:29:37,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-12 08:29:37,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-12 08:29:37,411 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-12 08:29:37,416 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-12 08:29:37,444 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-12 08:29:37,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-12 08:29:37,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-12 08:29:37,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-12 08:29:37,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-12 08:29:37,452 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-12 08:29:37,453 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-12 08:29:37,453 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-12 08:29:37,453 INFO L138 SettingsManager]: * Use SBE=true [2022-07-12 08:29:37,454 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-12 08:29:37,454 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-12 08:29:37,454 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-12 08:29:37,454 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-12 08:29:37,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-12 08:29:37,455 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-12 08:29:37,455 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-12 08:29:37,455 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-12 08:29:37,455 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-12 08:29:37,455 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-12 08:29:37,456 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-12 08:29:37,456 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-12 08:29:37,456 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-12 08:29:37,456 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-12 08:29:37,457 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-12 08:29:37,457 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:29:37,457 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-12 08:29:37,457 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-12 08:29:37,457 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-12 08:29:37,458 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-12 08:29:37,458 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-12 08:29:37,458 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-12 08:29:37,458 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-12 08:29:37,459 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-12 08:29:37,459 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 21d4f13e72175539cc78aacb8d1d416269d0755bd0c7a4b3f37d9d8805a7ca70 [2022-07-12 08:29:37,687 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-12 08:29:37,711 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-12 08:29:37,713 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-12 08:29:37,714 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-12 08:29:37,715 INFO L275 PluginConnector]: CDTParser initialized [2022-07-12 08:29:37,716 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c [2022-07-12 08:29:37,774 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fd496c5/7e1d310d99f54e2fadf54c9217115803/FLAG529336afe [2022-07-12 08:29:38,528 INFO L306 CDTParser]: Found 1 translation units. [2022-07-12 08:29:38,529 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c [2022-07-12 08:29:38,583 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fd496c5/7e1d310d99f54e2fadf54c9217115803/FLAG529336afe [2022-07-12 08:29:39,035 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3fd496c5/7e1d310d99f54e2fadf54c9217115803 [2022-07-12 08:29:39,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-12 08:29:39,049 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-12 08:29:39,051 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-12 08:29:39,052 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-12 08:29:39,054 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-12 08:29:39,055 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:29:39" (1/1) ... [2022-07-12 08:29:39,056 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fe1427 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:39, skipping insertion in model container [2022-07-12 08:29:39,056 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.07 08:29:39" (1/1) ... [2022-07-12 08:29:39,061 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-12 08:29:39,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-12 08:29:40,670 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-1.c[380593,380606] [2022-07-12 08:29:40,693 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-1.c[383339,383352] [2022-07-12 08:29:40,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:29:40,967 INFO L203 MainTranslator]: Completed pre-run [2022-07-12 08:29:41,726 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-1.c[380593,380606] [2022-07-12 08:29:41,733 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-1.c[383339,383352] [2022-07-12 08:29:41,760 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-12 08:29:41,815 INFO L208 MainTranslator]: Completed translation [2022-07-12 08:29:41,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41 WrapperNode [2022-07-12 08:29:41,816 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-12 08:29:41,817 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-12 08:29:41,817 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-12 08:29:41,817 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-12 08:29:41,824 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:41,916 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:42,369 INFO L137 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13262 [2022-07-12 08:29:42,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-12 08:29:42,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-12 08:29:42,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-12 08:29:42,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-12 08:29:42,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:42,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:42,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:42,531 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:42,687 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:42,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:42,807 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:42,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-12 08:29:42,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-12 08:29:42,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-12 08:29:42,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-12 08:29:42,864 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (1/1) ... [2022-07-12 08:29:42,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-12 08:29:42,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-12 08:29:42,896 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-12 08:29:42,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-12 08:29:42,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-12 08:29:42,928 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-12 08:29:42,928 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-12 08:29:42,929 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-12 08:29:42,929 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-12 08:29:42,929 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-12 08:29:42,929 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-12 08:29:42,929 INFO L130 BoogieDeclarations]: Found specification of procedure error [2022-07-12 08:29:42,929 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2022-07-12 08:29:42,929 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-12 08:29:42,930 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-12 08:29:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-12 08:29:42,930 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-12 08:29:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-12 08:29:42,930 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-12 08:29:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-12 08:29:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-12 08:29:42,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-12 08:29:43,045 INFO L234 CfgBuilder]: Building ICFG [2022-07-12 08:29:43,047 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-12 08:29:48,915 INFO L275 CfgBuilder]: Performing block encoding [2022-07-12 08:29:48,944 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-12 08:29:48,945 INFO L299 CfgBuilder]: Removed 17 assume(true) statements. [2022-07-12 08:29:48,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:29:48 BoogieIcfgContainer [2022-07-12 08:29:48,950 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-12 08:29:48,953 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-12 08:29:48,953 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-12 08:29:48,956 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-12 08:29:48,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.07 08:29:39" (1/3) ... [2022-07-12 08:29:48,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba7ee78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:29:48, skipping insertion in model container [2022-07-12 08:29:48,957 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.07 08:29:41" (2/3) ... [2022-07-12 08:29:48,957 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba7ee78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.07 08:29:48, skipping insertion in model container [2022-07-12 08:29:48,958 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.07 08:29:48" (3/3) ... [2022-07-12 08:29:48,959 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.13.cil-1.c [2022-07-12 08:29:48,971 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-12 08:29:48,971 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-12 08:29:49,068 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-12 08:29:49,074 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@8b6c294, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@22708fd9 [2022-07-12 08:29:49,074 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-12 08:29:49,088 INFO L276 IsEmpty]: Start isEmpty. Operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2022-07-12 08:29:49,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:29:49,106 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:29:49,106 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:29:49,107 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:29:49,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:29:49,110 INFO L85 PathProgramCache]: Analyzing trace with hash -384467650, now seen corresponding path program 1 times [2022-07-12 08:29:49,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:29:49,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421246457] [2022-07-12 08:29:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:29:49,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:29:49,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:49,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:29:49,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:49,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:29:49,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:49,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:29:49,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:49,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:29:49,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:49,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:29:49,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:49,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:29:49,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:29:49,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421246457] [2022-07-12 08:29:49,604 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421246457] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:29:49,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:29:49,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 08:29:49,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164802347] [2022-07-12 08:29:49,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:29:49,612 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 08:29:49,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:29:49,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 08:29:49,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 08:29:49,650 INFO L87 Difference]: Start difference. First operand has 2598 states, 2559 states have (on average 1.842125830402501) internal successors, (4714), 2564 states have internal predecessors, (4714), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:29:51,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:29:51,641 INFO L93 Difference]: Finished difference Result 5340 states and 9793 transitions. [2022-07-12 08:29:51,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 08:29:51,644 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:29:51,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:29:51,668 INFO L225 Difference]: With dead ends: 5340 [2022-07-12 08:29:51,668 INFO L226 Difference]: Without dead ends: 2683 [2022-07-12 08:29:51,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 08:29:51,680 INFO L413 NwaCegarLoop]: 4741 mSDtfsCounter, 1121 mSDsluCounter, 12509 mSDsCounter, 0 mSdLazyCounter, 776 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1146 SdHoareTripleChecker+Valid, 17250 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 776 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:29:51,681 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1146 Valid, 17250 Invalid, 842 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 776 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-07-12 08:29:51,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-07-12 08:29:51,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-07-12 08:29:51,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2493 states have (on average 1.824709185720016) internal successors, (4549), 2496 states have internal predecessors, (4549), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:29:51,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4605 transitions. [2022-07-12 08:29:51,843 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4605 transitions. Word has length 190 [2022-07-12 08:29:51,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:29:51,844 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4605 transitions. [2022-07-12 08:29:51,845 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:29:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4605 transitions. [2022-07-12 08:29:51,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:29:51,851 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:29:51,851 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:29:51,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-12 08:29:51,852 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:29:51,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:29:51,853 INFO L85 PathProgramCache]: Analyzing trace with hash 431579580, now seen corresponding path program 1 times [2022-07-12 08:29:51,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:29:51,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260772332] [2022-07-12 08:29:51,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:29:51,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:29:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:51,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:29:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:51,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:29:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:52,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:29:52,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:52,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:29:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:52,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:29:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:52,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:29:52,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:29:52,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260772332] [2022-07-12 08:29:52,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260772332] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:29:52,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:29:52,101 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-12 08:29:52,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129624107] [2022-07-12 08:29:52,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:29:52,103 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-12 08:29:52,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:29:52,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-12 08:29:52,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-12 08:29:52,104 INFO L87 Difference]: Start difference. First operand 2530 states and 4605 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:29:53,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:29:53,734 INFO L93 Difference]: Finished difference Result 3075 states and 5487 transitions. [2022-07-12 08:29:53,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-12 08:29:53,735 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:29:53,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:29:53,747 INFO L225 Difference]: With dead ends: 3075 [2022-07-12 08:29:53,747 INFO L226 Difference]: Without dead ends: 2683 [2022-07-12 08:29:53,749 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-12 08:29:53,750 INFO L413 NwaCegarLoop]: 4671 mSDtfsCounter, 1107 mSDsluCounter, 12306 mSDsCounter, 0 mSdLazyCounter, 775 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1132 SdHoareTripleChecker+Valid, 16977 SdHoareTripleChecker+Invalid, 841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 775 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-07-12 08:29:53,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1132 Valid, 16977 Invalid, 841 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [66 Valid, 775 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-07-12 08:29:53,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2683 states. [2022-07-12 08:29:53,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2683 to 2530. [2022-07-12 08:29:53,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2530 states, 2493 states have (on average 1.8243080625752106) internal successors, (4548), 2496 states have internal predecessors, (4548), 29 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2022-07-12 08:29:53,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2530 states to 2530 states and 4604 transitions. [2022-07-12 08:29:53,821 INFO L78 Accepts]: Start accepts. Automaton has 2530 states and 4604 transitions. Word has length 190 [2022-07-12 08:29:53,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:29:53,821 INFO L495 AbstractCegarLoop]: Abstraction has 2530 states and 4604 transitions. [2022-07-12 08:29:53,822 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, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:29:53,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2530 states and 4604 transitions. [2022-07-12 08:29:53,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:29:53,826 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:29:53,827 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:29:53,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-12 08:29:53,827 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:29:53,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:29:53,828 INFO L85 PathProgramCache]: Analyzing trace with hash -217013190, now seen corresponding path program 1 times [2022-07-12 08:29:53,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:29:53,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227358811] [2022-07-12 08:29:53,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:29:53,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:29:53,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:53,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:29:53,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:53,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:29:53,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:53,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:29:53,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:53,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:29:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:54,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:29:54,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:54,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:29:54,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:29:54,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227358811] [2022-07-12 08:29:54,011 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227358811] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:29:54,011 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:29:54,011 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-12 08:29:54,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613153611] [2022-07-12 08:29:54,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:29:54,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-12 08:29:54,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:29:54,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-12 08:29:54,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-12 08:29:54,014 INFO L87 Difference]: Start difference. First operand 2530 states and 4604 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:29:57,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:29:57,129 INFO L93 Difference]: Finished difference Result 3632 states and 6395 transitions. [2022-07-12 08:29:57,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-07-12 08:29:57,130 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:29:57,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:29:57,145 INFO L225 Difference]: With dead ends: 3632 [2022-07-12 08:29:57,146 INFO L226 Difference]: Without dead ends: 3244 [2022-07-12 08:29:57,153 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:29:57,156 INFO L413 NwaCegarLoop]: 4727 mSDtfsCounter, 5640 mSDsluCounter, 12917 mSDsCounter, 0 mSdLazyCounter, 2164 mSolverCounterSat, 128 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5660 SdHoareTripleChecker+Valid, 17644 SdHoareTripleChecker+Invalid, 2292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 128 IncrementalHoareTripleChecker+Valid, 2164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2022-07-12 08:29:57,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5660 Valid, 17644 Invalid, 2292 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [128 Valid, 2164 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2022-07-12 08:29:57,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3244 states. [2022-07-12 08:29:57,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3244 to 2937. [2022-07-12 08:29:57,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2937 states, 2871 states have (on average 1.79554162312783) internal successors, (5155), 2875 states have internal predecessors, (5155), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (52), 49 states have call predecessors, (52), 49 states have call successors, (52) [2022-07-12 08:29:57,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2937 states to 2937 states and 5258 transitions. [2022-07-12 08:29:57,271 INFO L78 Accepts]: Start accepts. Automaton has 2937 states and 5258 transitions. Word has length 190 [2022-07-12 08:29:57,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:29:57,271 INFO L495 AbstractCegarLoop]: Abstraction has 2937 states and 5258 transitions. [2022-07-12 08:29:57,272 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:29:57,272 INFO L276 IsEmpty]: Start isEmpty. Operand 2937 states and 5258 transitions. [2022-07-12 08:29:57,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:29:57,274 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:29:57,274 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:29:57,275 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-12 08:29:57,275 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:29:57,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:29:57,276 INFO L85 PathProgramCache]: Analyzing trace with hash -2064039626, now seen corresponding path program 1 times [2022-07-12 08:29:57,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:29:57,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265134053] [2022-07-12 08:29:57,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:29:57,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:29:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:57,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:29:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:57,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:29:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:57,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:29:57,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:57,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:29:57,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:57,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:29:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:29:57,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:29:57,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:29:57,441 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265134053] [2022-07-12 08:29:57,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265134053] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:29:57,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:29:57,442 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:29:57,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597096039] [2022-07-12 08:29:57,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:29:57,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:29:57,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:29:57,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:29:57,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:29:57,444 INFO L87 Difference]: Start difference. First operand 2937 states and 5258 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:01,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:30:01,298 INFO L93 Difference]: Finished difference Result 4620 states and 7998 transitions. [2022-07-12 08:30:01,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:30:01,300 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:30:01,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:30:01,322 INFO L225 Difference]: With dead ends: 4620 [2022-07-12 08:30:01,325 INFO L226 Difference]: Without dead ends: 3825 [2022-07-12 08:30:01,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:30:01,330 INFO L413 NwaCegarLoop]: 5060 mSDtfsCounter, 5676 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3366 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5696 SdHoareTripleChecker+Valid, 22972 SdHoareTripleChecker+Invalid, 3452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 3366 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2022-07-12 08:30:01,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5696 Valid, 22972 Invalid, 3452 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [86 Valid, 3366 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2022-07-12 08:30:01,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3825 states. [2022-07-12 08:30:01,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3825 to 3315. [2022-07-12 08:30:01,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3315 states, 3220 states have (on average 1.7714285714285714) internal successors, (5704), 3225 states have internal predecessors, (5704), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (76), 72 states have call predecessors, (76), 71 states have call successors, (76) [2022-07-12 08:30:01,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3315 states to 3315 states and 5853 transitions. [2022-07-12 08:30:01,467 INFO L78 Accepts]: Start accepts. Automaton has 3315 states and 5853 transitions. Word has length 190 [2022-07-12 08:30:01,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:30:01,473 INFO L495 AbstractCegarLoop]: Abstraction has 3315 states and 5853 transitions. [2022-07-12 08:30:01,473 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:01,474 INFO L276 IsEmpty]: Start isEmpty. Operand 3315 states and 5853 transitions. [2022-07-12 08:30:01,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:30:01,477 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:30:01,477 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:30:01,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-12 08:30:01,478 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:30:01,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:30:01,479 INFO L85 PathProgramCache]: Analyzing trace with hash 307677240, now seen corresponding path program 1 times [2022-07-12 08:30:01,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:30:01,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782507294] [2022-07-12 08:30:01,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:30:01,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:30:01,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:01,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:30:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:01,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:30:01,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:01,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:30:01,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:01,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:30:01,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:01,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:30:01,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:01,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:30:01,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:30:01,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782507294] [2022-07-12 08:30:01,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782507294] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:30:01,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:30:01,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:30:01,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537133700] [2022-07-12 08:30:01,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:30:01,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:30:01,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:30:01,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:30:01,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:30:01,654 INFO L87 Difference]: Start difference. First operand 3315 states and 5853 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:05,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:30:05,200 INFO L93 Difference]: Finished difference Result 6076 states and 10341 transitions. [2022-07-12 08:30:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:30:05,201 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:30:05,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:30:05,223 INFO L225 Difference]: With dead ends: 6076 [2022-07-12 08:30:05,223 INFO L226 Difference]: Without dead ends: 4903 [2022-07-12 08:30:05,230 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:30:05,231 INFO L413 NwaCegarLoop]: 5048 mSDtfsCounter, 5670 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3355 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5690 SdHoareTripleChecker+Valid, 22960 SdHoareTripleChecker+Invalid, 3443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 08:30:05,231 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5690 Valid, 22960 Invalid, 3443 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3355 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 08:30:05,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4903 states. [2022-07-12 08:30:05,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4903 to 4075. [2022-07-12 08:30:05,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4075 states, 3922 states have (on average 1.7361040285568587) internal successors, (6809), 3929 states have internal predecessors, (6809), 117 states have call successors, (117), 31 states have call predecessors, (117), 34 states have return successors, (128), 118 states have call predecessors, (128), 115 states have call successors, (128) [2022-07-12 08:30:05,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4075 states to 4075 states and 7054 transitions. [2022-07-12 08:30:05,446 INFO L78 Accepts]: Start accepts. Automaton has 4075 states and 7054 transitions. Word has length 190 [2022-07-12 08:30:05,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:30:05,446 INFO L495 AbstractCegarLoop]: Abstraction has 4075 states and 7054 transitions. [2022-07-12 08:30:05,447 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:05,447 INFO L276 IsEmpty]: Start isEmpty. Operand 4075 states and 7054 transitions. [2022-07-12 08:30:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:30:05,450 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:30:05,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:30:05,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-12 08:30:05,450 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:30:05,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:30:05,451 INFO L85 PathProgramCache]: Analyzing trace with hash 806234042, now seen corresponding path program 1 times [2022-07-12 08:30:05,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:30:05,451 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476755923] [2022-07-12 08:30:05,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:30:05,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:30:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:30:05,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:05,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:30:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:05,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:30:05,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:05,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:30:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:05,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:30:05,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:05,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:30:05,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:30:05,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476755923] [2022-07-12 08:30:05,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476755923] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:30:05,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:30:05,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:30:05,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140643325] [2022-07-12 08:30:05,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:30:05,693 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:30:05,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:30:05,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:30:05,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:30:05,694 INFO L87 Difference]: Start difference. First operand 4075 states and 7054 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:09,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:30:09,414 INFO L93 Difference]: Finished difference Result 8882 states and 14826 transitions. [2022-07-12 08:30:09,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:30:09,415 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:30:09,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:30:09,455 INFO L225 Difference]: With dead ends: 8882 [2022-07-12 08:30:09,456 INFO L226 Difference]: Without dead ends: 6949 [2022-07-12 08:30:09,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:30:09,469 INFO L413 NwaCegarLoop]: 5043 mSDtfsCounter, 5669 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3347 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5689 SdHoareTripleChecker+Valid, 22955 SdHoareTripleChecker+Invalid, 3435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-07-12 08:30:09,469 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5689 Valid, 22955 Invalid, 3435 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3347 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-07-12 08:30:09,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6949 states. [2022-07-12 08:30:09,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6949 to 5596. [2022-07-12 08:30:09,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5596 states, 5327 states have (on average 1.6930730242162568) internal successors, (9019), 5338 states have internal predecessors, (9019), 205 states have call successors, (205), 55 states have call predecessors, (205), 62 states have return successors, (238), 210 states have call predecessors, (238), 203 states have call successors, (238) [2022-07-12 08:30:09,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5596 states to 5596 states and 9462 transitions. [2022-07-12 08:30:09,845 INFO L78 Accepts]: Start accepts. Automaton has 5596 states and 9462 transitions. Word has length 190 [2022-07-12 08:30:09,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:30:09,846 INFO L495 AbstractCegarLoop]: Abstraction has 5596 states and 9462 transitions. [2022-07-12 08:30:09,846 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:09,846 INFO L276 IsEmpty]: Start isEmpty. Operand 5596 states and 9462 transitions. [2022-07-12 08:30:09,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:30:09,849 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:30:09,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:30:09,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-12 08:30:09,850 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:30:09,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:30:09,853 INFO L85 PathProgramCache]: Analyzing trace with hash 1376505848, now seen corresponding path program 1 times [2022-07-12 08:30:09,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:30:09,853 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139907951] [2022-07-12 08:30:09,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:30:09,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:30:09,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:09,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:30:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:30:09,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:09,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:30:09,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:10,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:30:10,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:10,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:30:10,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:10,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:30:10,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:30:10,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139907951] [2022-07-12 08:30:10,016 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139907951] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:30:10,016 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:30:10,016 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:30:10,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973010536] [2022-07-12 08:30:10,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:30:10,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:30:10,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:30:10,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:30:10,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:30:10,018 INFO L87 Difference]: Start difference. First operand 5596 states and 9462 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:13,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:30:13,754 INFO L93 Difference]: Finished difference Result 14493 states and 23812 transitions. [2022-07-12 08:30:13,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:30:13,755 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:30:13,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:30:13,791 INFO L225 Difference]: With dead ends: 14493 [2022-07-12 08:30:13,792 INFO L226 Difference]: Without dead ends: 11039 [2022-07-12 08:30:13,805 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:30:13,806 INFO L413 NwaCegarLoop]: 5038 mSDtfsCounter, 5668 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3339 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5688 SdHoareTripleChecker+Valid, 22950 SdHoareTripleChecker+Invalid, 3427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:30:13,807 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5688 Valid, 22950 Invalid, 3427 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3339 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 08:30:13,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11039 states. [2022-07-12 08:30:14,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11039 to 8645. [2022-07-12 08:30:14,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8645 states, 8144 states have (on average 1.6513998035363457) internal successors, (13449), 8163 states have internal predecessors, (13449), 381 states have call successors, (381), 103 states have call predecessors, (381), 118 states have return successors, (476), 394 states have call predecessors, (476), 379 states have call successors, (476) [2022-07-12 08:30:14,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8645 states to 8645 states and 14306 transitions. [2022-07-12 08:30:14,362 INFO L78 Accepts]: Start accepts. Automaton has 8645 states and 14306 transitions. Word has length 190 [2022-07-12 08:30:14,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:30:14,364 INFO L495 AbstractCegarLoop]: Abstraction has 8645 states and 14306 transitions. [2022-07-12 08:30:14,364 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:14,364 INFO L276 IsEmpty]: Start isEmpty. Operand 8645 states and 14306 transitions. [2022-07-12 08:30:14,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:30:14,370 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:30:14,370 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:30:14,370 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-12 08:30:14,370 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:30:14,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:30:14,371 INFO L85 PathProgramCache]: Analyzing trace with hash -1514592262, now seen corresponding path program 1 times [2022-07-12 08:30:14,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:30:14,371 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387855563] [2022-07-12 08:30:14,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:30:14,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:30:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:14,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:30:14,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:14,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:30:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:14,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:30:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:14,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:30:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:14,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:30:14,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:14,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:30:14,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:30:14,534 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387855563] [2022-07-12 08:30:14,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387855563] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:30:14,535 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:30:14,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:30:14,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92425233] [2022-07-12 08:30:14,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:30:14,536 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:30:14,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:30:14,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:30:14,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:30:14,536 INFO L87 Difference]: Start difference. First operand 8645 states and 14306 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:18,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:30:18,911 INFO L93 Difference]: Finished difference Result 25716 states and 41846 transitions. [2022-07-12 08:30:18,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:30:18,911 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:30:18,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:30:18,977 INFO L225 Difference]: With dead ends: 25716 [2022-07-12 08:30:18,977 INFO L226 Difference]: Without dead ends: 19213 [2022-07-12 08:30:19,004 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:30:19,005 INFO L413 NwaCegarLoop]: 4762 mSDtfsCounter, 5779 mSDsluCounter, 17192 mSDsCounter, 0 mSdLazyCounter, 2964 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5799 SdHoareTripleChecker+Valid, 21954 SdHoareTripleChecker+Invalid, 3094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2964 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2022-07-12 08:30:19,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5799 Valid, 21954 Invalid, 3094 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [130 Valid, 2964 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2022-07-12 08:30:19,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19213 states. [2022-07-12 08:30:19,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19213 to 14758. [2022-07-12 08:30:19,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14758 states, 13793 states have (on average 1.6190096425723193) internal successors, (22331), 13828 states have internal predecessors, (22331), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-12 08:30:19,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24070 transitions. [2022-07-12 08:30:19,947 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24070 transitions. Word has length 190 [2022-07-12 08:30:19,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:30:19,948 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24070 transitions. [2022-07-12 08:30:19,948 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:19,948 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24070 transitions. [2022-07-12 08:30:19,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:30:19,957 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:30:19,957 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:30:19,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-12 08:30:19,957 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:30:19,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:30:19,958 INFO L85 PathProgramCache]: Analyzing trace with hash 1994377144, now seen corresponding path program 1 times [2022-07-12 08:30:19,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:30:19,958 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978712262] [2022-07-12 08:30:19,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:30:19,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:30:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:20,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:30:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:20,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:30:20,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:20,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:30:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:30:20,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:30:20,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:20,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:30:20,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:30:20,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978712262] [2022-07-12 08:30:20,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978712262] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:30:20,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:30:20,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:30:20,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527016688] [2022-07-12 08:30:20,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:30:20,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:30:20,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:30:20,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:30:20,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:30:20,263 INFO L87 Difference]: Start difference. First operand 14758 states and 24070 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:23,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:30:23,281 INFO L93 Difference]: Finished difference Result 32108 states and 52373 transitions. [2022-07-12 08:30:23,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 08:30:23,282 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:30:23,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:30:23,348 INFO L225 Difference]: With dead ends: 32108 [2022-07-12 08:30:23,349 INFO L226 Difference]: Without dead ends: 19492 [2022-07-12 08:30:23,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:30:23,395 INFO L413 NwaCegarLoop]: 4649 mSDtfsCounter, 5175 mSDsluCounter, 16860 mSDsCounter, 0 mSdLazyCounter, 1588 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5196 SdHoareTripleChecker+Valid, 21509 SdHoareTripleChecker+Invalid, 1679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1588 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:30:23,396 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5196 Valid, 21509 Invalid, 1679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1588 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2022-07-12 08:30:23,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19492 states. [2022-07-12 08:30:24,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19492 to 14758. [2022-07-12 08:30:24,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14758 states, 13793 states have (on average 1.6166171246284347) internal successors, (22298), 13828 states have internal predecessors, (22298), 733 states have call successors, (733), 199 states have call predecessors, (733), 230 states have return successors, (1006), 762 states have call predecessors, (1006), 731 states have call successors, (1006) [2022-07-12 08:30:24,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14758 states to 14758 states and 24037 transitions. [2022-07-12 08:30:24,582 INFO L78 Accepts]: Start accepts. Automaton has 14758 states and 24037 transitions. Word has length 190 [2022-07-12 08:30:24,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:30:24,582 INFO L495 AbstractCegarLoop]: Abstraction has 14758 states and 24037 transitions. [2022-07-12 08:30:24,583 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:24,583 INFO L276 IsEmpty]: Start isEmpty. Operand 14758 states and 24037 transitions. [2022-07-12 08:30:24,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:30:24,592 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:30:24,592 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:30:24,592 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-12 08:30:24,592 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:30:24,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:30:24,593 INFO L85 PathProgramCache]: Analyzing trace with hash -1633208262, now seen corresponding path program 1 times [2022-07-12 08:30:24,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:30:24,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8443009] [2022-07-12 08:30:24,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:30:24,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:30:24,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:24,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:30:24,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:24,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:30:24,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:24,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:30:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:24,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:30:24,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:24,723 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:30:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:24,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:30:24,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:30:24,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8443009] [2022-07-12 08:30:24,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8443009] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:30:24,728 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:30:24,728 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:30:24,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936647501] [2022-07-12 08:30:24,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:30:24,728 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:30:24,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:30:24,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:30:24,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:30:24,729 INFO L87 Difference]: Start difference. First operand 14758 states and 24037 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:30,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:30:30,552 INFO L93 Difference]: Finished difference Result 48129 states and 77876 transitions. [2022-07-12 08:30:30,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:30:30,552 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:30:30,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:30:30,672 INFO L225 Difference]: With dead ends: 48129 [2022-07-12 08:30:30,673 INFO L226 Difference]: Without dead ends: 35513 [2022-07-12 08:30:30,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:30:30,714 INFO L413 NwaCegarLoop]: 5022 mSDtfsCounter, 5659 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3304 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5679 SdHoareTripleChecker+Valid, 22934 SdHoareTripleChecker+Invalid, 3392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 3304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2022-07-12 08:30:30,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5679 Valid, 22934 Invalid, 3392 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [88 Valid, 3304 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2022-07-12 08:30:30,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35513 states. [2022-07-12 08:30:32,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35513 to 27048. [2022-07-12 08:30:32,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27048 states, 25155 states have (on average 1.5945140131186644) internal successors, (40110), 25222 states have internal predecessors, (40110), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 454 states have return successors, (2228), 1498 states have call predecessors, (2228), 1435 states have call successors, (2228) [2022-07-12 08:30:32,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27048 states to 27048 states and 43775 transitions. [2022-07-12 08:30:32,615 INFO L78 Accepts]: Start accepts. Automaton has 27048 states and 43775 transitions. Word has length 190 [2022-07-12 08:30:32,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:30:32,617 INFO L495 AbstractCegarLoop]: Abstraction has 27048 states and 43775 transitions. [2022-07-12 08:30:32,617 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:32,618 INFO L276 IsEmpty]: Start isEmpty. Operand 27048 states and 43775 transitions. [2022-07-12 08:30:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:30:32,633 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:30:32,633 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:30:32,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-12 08:30:32,634 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:30:32,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:30:32,634 INFO L85 PathProgramCache]: Analyzing trace with hash 466530168, now seen corresponding path program 1 times [2022-07-12 08:30:32,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:30:32,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164888152] [2022-07-12 08:30:32,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:30:32,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:30:32,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:32,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:30:32,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:32,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:30:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:32,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:30:32,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:30:32,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:30:32,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:32,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:30:32,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:30:32,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164888152] [2022-07-12 08:30:32,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164888152] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:30:32,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:30:32,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:30:32,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550863772] [2022-07-12 08:30:32,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:30:32,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:30:32,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:30:32,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:30:32,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:30:32,784 INFO L87 Difference]: Start difference. First operand 27048 states and 43775 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:41,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:30:41,304 INFO L93 Difference]: Finished difference Result 93025 states and 150812 transitions. [2022-07-12 08:30:41,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:30:41,305 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:30:41,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:30:41,625 INFO L225 Difference]: With dead ends: 93025 [2022-07-12 08:30:41,626 INFO L226 Difference]: Without dead ends: 68119 [2022-07-12 08:30:41,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:30:41,702 INFO L413 NwaCegarLoop]: 5015 mSDtfsCounter, 5661 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3293 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5681 SdHoareTripleChecker+Valid, 22927 SdHoareTripleChecker+Invalid, 3384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:30:41,703 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5681 Valid, 22927 Invalid, 3384 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 3293 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 08:30:41,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68119 states. [2022-07-12 08:30:45,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68119 to 51689. [2022-07-12 08:30:45,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51689 states, 47940 states have (on average 1.5816437213183145) internal successors, (75824), 48071 states have internal predecessors, (75824), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-12 08:30:45,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51689 states to 51689 states and 83827 transitions. [2022-07-12 08:30:45,907 INFO L78 Accepts]: Start accepts. Automaton has 51689 states and 83827 transitions. Word has length 190 [2022-07-12 08:30:45,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:30:45,908 INFO L495 AbstractCegarLoop]: Abstraction has 51689 states and 83827 transitions. [2022-07-12 08:30:45,908 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:45,908 INFO L276 IsEmpty]: Start isEmpty. Operand 51689 states and 83827 transitions. [2022-07-12 08:30:45,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:30:45,940 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:30:45,941 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:30:45,941 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-07-12 08:30:45,941 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:30:45,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:30:45,942 INFO L85 PathProgramCache]: Analyzing trace with hash 811358330, now seen corresponding path program 1 times [2022-07-12 08:30:45,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:30:45,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019760690] [2022-07-12 08:30:45,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:30:45,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:30:45,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:45,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:30:45,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:46,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:30:46,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:46,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:30:46,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:46,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:30:46,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:46,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:30:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:46,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:30:46,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:30:46,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019760690] [2022-07-12 08:30:46,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019760690] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:30:46,084 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:30:46,084 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:30:46,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566760695] [2022-07-12 08:30:46,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:30:46,085 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:30:46,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:30:46,085 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:30:46,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:30:46,086 INFO L87 Difference]: Start difference. First operand 51689 states and 83827 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:53,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:30:53,731 INFO L93 Difference]: Finished difference Result 118634 states and 194806 transitions. [2022-07-12 08:30:53,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-12 08:30:53,732 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:30:53,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:30:54,099 INFO L225 Difference]: With dead ends: 118634 [2022-07-12 08:30:54,100 INFO L226 Difference]: Without dead ends: 69087 [2022-07-12 08:30:54,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-07-12 08:30:54,221 INFO L413 NwaCegarLoop]: 4635 mSDtfsCounter, 5355 mSDsluCounter, 12687 mSDsCounter, 0 mSdLazyCounter, 1385 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5376 SdHoareTripleChecker+Valid, 17322 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 1385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-12 08:30:54,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5376 Valid, 17322 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 1385 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-07-12 08:30:54,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69087 states. [2022-07-12 08:30:58,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69087 to 51689. [2022-07-12 08:30:58,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51689 states, 47940 states have (on average 1.5789528577388403) internal successors, (75695), 48071 states have internal predecessors, (75695), 2845 states have call successors, (2845), 775 states have call predecessors, (2845), 902 states have return successors, (5158), 2970 states have call predecessors, (5158), 2843 states have call successors, (5158) [2022-07-12 08:30:58,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51689 states to 51689 states and 83698 transitions. [2022-07-12 08:30:58,691 INFO L78 Accepts]: Start accepts. Automaton has 51689 states and 83698 transitions. Word has length 190 [2022-07-12 08:30:58,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:30:58,691 INFO L495 AbstractCegarLoop]: Abstraction has 51689 states and 83698 transitions. [2022-07-12 08:30:58,691 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:30:58,691 INFO L276 IsEmpty]: Start isEmpty. Operand 51689 states and 83698 transitions. [2022-07-12 08:30:58,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:30:58,725 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:30:58,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:30:58,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-07-12 08:30:58,726 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:30:58,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:30:58,726 INFO L85 PathProgramCache]: Analyzing trace with hash -958113284, now seen corresponding path program 1 times [2022-07-12 08:30:58,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:30:58,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119910032] [2022-07-12 08:30:58,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:30:58,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:30:58,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:58,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:30:58,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:58,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:30:58,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:58,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:30:58,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:58,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:30:58,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:58,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:30:58,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:30:58,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:30:58,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:30:58,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119910032] [2022-07-12 08:30:58,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119910032] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:30:58,912 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:30:58,912 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:30:58,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67008590] [2022-07-12 08:30:58,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:30:58,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:30:58,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:30:58,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:30:58,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:30:58,914 INFO L87 Difference]: Start difference. First operand 51689 states and 83698 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:31:14,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-12 08:31:14,684 INFO L93 Difference]: Finished difference Result 182556 states and 297366 transitions. [2022-07-12 08:31:14,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-12 08:31:14,685 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 190 [2022-07-12 08:31:14,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-12 08:31:15,069 INFO L225 Difference]: With dead ends: 182556 [2022-07-12 08:31:15,070 INFO L226 Difference]: Without dead ends: 133009 [2022-07-12 08:31:15,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-12 08:31:15,191 INFO L413 NwaCegarLoop]: 5000 mSDtfsCounter, 5649 mSDsluCounter, 17912 mSDsCounter, 0 mSdLazyCounter, 3256 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5669 SdHoareTripleChecker+Valid, 22912 SdHoareTripleChecker+Invalid, 3347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 3256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2022-07-12 08:31:15,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5669 Valid, 22912 Invalid, 3347 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [91 Valid, 3256 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2022-07-12 08:31:15,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133009 states. [2022-07-12 08:31:23,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133009 to 101356. [2022-07-12 08:31:23,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101356 states, 93895 states have (on average 1.5716811331806806) internal successors, (147573), 94154 states have internal predecessors, (147573), 5661 states have call successors, (5661), 1543 states have call predecessors, (5661), 1798 states have return successors, (12476), 5914 states have call predecessors, (12476), 5659 states have call successors, (12476) [2022-07-12 08:31:23,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101356 states to 101356 states and 165710 transitions. [2022-07-12 08:31:23,970 INFO L78 Accepts]: Start accepts. Automaton has 101356 states and 165710 transitions. Word has length 190 [2022-07-12 08:31:23,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-12 08:31:23,971 INFO L495 AbstractCegarLoop]: Abstraction has 101356 states and 165710 transitions. [2022-07-12 08:31:23,971 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-12 08:31:23,971 INFO L276 IsEmpty]: Start isEmpty. Operand 101356 states and 165710 transitions. [2022-07-12 08:31:24,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2022-07-12 08:31:24,026 INFO L187 NwaCegarLoop]: Found error trace [2022-07-12 08:31:24,026 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-12 08:31:24,026 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-07-12 08:31:24,027 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-12 08:31:24,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-12 08:31:24,027 INFO L85 PathProgramCache]: Analyzing trace with hash -1569382342, now seen corresponding path program 1 times [2022-07-12 08:31:24,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-12 08:31:24,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841593904] [2022-07-12 08:31:24,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-12 08:31:24,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-12 08:31:24,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:31:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-12 08:31:24,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:31:24,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-07-12 08:31:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:31:24,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-12 08:31:24,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:31:24,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-07-12 08:31:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:31:24,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-07-12 08:31:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-12 08:31:24,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-12 08:31:24,191 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-12 08:31:24,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841593904] [2022-07-12 08:31:24,191 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841593904] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-12 08:31:24,191 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-12 08:31:24,192 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-12 08:31:24,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515968644] [2022-07-12 08:31:24,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-12 08:31:24,192 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-12 08:31:24,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-12 08:31:24,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-12 08:31:24,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-12 08:31:24,194 INFO L87 Difference]: Start difference. First operand 101356 states and 165710 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, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)