./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 24feb2eb47843fcae857e84ddd5aa58dae94843db909f56f0ca240268764bef9 --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 19:40:46,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 19:40:46,056 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 19:40:46,075 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 19:40:46,075 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 19:40:46,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 19:40:46,077 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 19:40:46,078 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 19:40:46,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 19:40:46,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 19:40:46,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 19:40:46,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 19:40:46,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 19:40:46,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 19:40:46,083 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 19:40:46,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 19:40:46,093 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 19:40:46,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 19:40:46,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 19:40:46,100 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 19:40:46,101 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 19:40:46,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 19:40:46,105 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 19:40:46,106 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 19:40:46,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 19:40:46,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 19:40:46,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 19:40:46,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 19:40:46,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 19:40:46,111 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 19:40:46,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 19:40:46,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 19:40:46,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 19:40:46,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 19:40:46,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 19:40:46,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 19:40:46,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 19:40:46,115 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 19:40:46,115 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 19:40:46,115 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 19:40:46,116 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 19:40:46,117 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 19:40:46,118 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-07-22 19:40:46,142 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 19:40:46,142 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 19:40:46,142 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 19:40:46,142 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 19:40:46,143 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 19:40:46,143 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 19:40:46,143 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 19:40:46,143 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 19:40:46,143 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 19:40:46,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 19:40:46,144 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 19:40:46,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 19:40:46,145 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 19:40:46,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 19:40:46,145 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24feb2eb47843fcae857e84ddd5aa58dae94843db909f56f0ca240268764bef9 [2022-07-22 19:40:46,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 19:40:46,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 19:40:46,368 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 19:40:46,369 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 19:40:46,369 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 19:40:46,370 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c [2022-07-22 19:40:46,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5e6bc3b/aea9544f68764654a4e7774f25288548/FLAG2fb94b036 [2022-07-22 19:40:47,163 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 19:40:47,164 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label46+token_ring.10.cil-2.c [2022-07-22 19:40:47,195 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5e6bc3b/aea9544f68764654a4e7774f25288548/FLAG2fb94b036 [2022-07-22 19:40:47,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a5e6bc3b/aea9544f68764654a4e7774f25288548 [2022-07-22 19:40:47,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 19:40:47,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 19:40:47,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 19:40:47,458 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 19:40:47,460 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 19:40:47,461 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 07:40:47" (1/1) ... [2022-07-22 19:40:47,462 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bfb5fc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:47, skipping insertion in model container [2022-07-22 19:40:47,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 07:40:47" (1/1) ... [2022-07-22 19:40:47,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 19:40:47,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 19:40:48,776 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_label46+token_ring.10.cil-2.c[382357,382370] [2022-07-22 19:40:48,794 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_label46+token_ring.10.cil-2.c[383339,383352] [2022-07-22 19:40:48,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 19:40:48,985 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 19:40:49,561 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_label46+token_ring.10.cil-2.c[382357,382370] [2022-07-22 19:40:49,565 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_label46+token_ring.10.cil-2.c[383339,383352] [2022-07-22 19:40:49,582 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 19:40:49,638 INFO L208 MainTranslator]: Completed translation [2022-07-22 19:40:49,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49 WrapperNode [2022-07-22 19:40:49,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 19:40:49,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 19:40:49,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 19:40:49,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 19:40:49,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:49,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:50,010 INFO L137 Inliner]: procedures = 64, calls = 71, calls flagged for inlining = 42, calls inlined = 42, statements flattened = 13083 [2022-07-22 19:40:50,011 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 19:40:50,012 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 19:40:50,012 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 19:40:50,012 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 19:40:50,018 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:50,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:50,068 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:50,068 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:50,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:50,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:50,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:50,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 19:40:50,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 19:40:50,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 19:40:50,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 19:40:50,392 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (1/1) ... [2022-07-22 19:40:50,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 19:40:50,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 19:40:50,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-07-22 19:40:50,435 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-07-22 19:40:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 19:40:50,470 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-07-22 19:40:50,471 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-07-22 19:40:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-07-22 19:40:50,471 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-07-22 19:40:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-07-22 19:40:50,471 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-07-22 19:40:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-07-22 19:40:50,471 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-07-22 19:40:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-07-22 19:40:50,471 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-07-22 19:40:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-07-22 19:40:50,471 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-07-22 19:40:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 19:40:50,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 19:40:50,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 19:40:50,639 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 19:40:50,640 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 19:40:55,526 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 19:40:55,564 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 19:40:55,564 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2022-07-22 19:40:55,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 07:40:55 BoogieIcfgContainer [2022-07-22 19:40:55,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 19:40:55,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 19:40:55,571 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 19:40:55,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 19:40:55,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 07:40:47" (1/3) ... [2022-07-22 19:40:55,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7404fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 07:40:55, skipping insertion in model container [2022-07-22 19:40:55,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 07:40:49" (2/3) ... [2022-07-22 19:40:55,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a7404fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 07:40:55, skipping insertion in model container [2022-07-22 19:40:55,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 07:40:55" (3/3) ... [2022-07-22 19:40:55,575 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem05_label46+token_ring.10.cil-2.c [2022-07-22 19:40:55,585 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 19:40:55,585 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-07-22 19:40:55,644 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 19:40:55,650 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@2aa04045, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@79c98fde [2022-07-22 19:40:55,650 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-07-22 19:40:55,665 INFO L276 IsEmpty]: Start isEmpty. Operand has 2515 states, 2482 states have (on average 1.8456889605157132) internal successors, (4581), 2485 states have internal predecessors, (4581), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-22 19:40:55,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:40:55,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:40:55,679 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] [2022-07-22 19:40:55,680 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:40:55,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:40:55,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1879597445, now seen corresponding path program 1 times [2022-07-22 19:40:55,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:40:55,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250841289] [2022-07-22 19:40:55,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:40:55,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:40:55,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:55,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:40:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:55,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:40:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:55,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:40:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:56,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:40:56,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:56,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:40:56,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:56,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:40:56,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:40:56,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250841289] [2022-07-22 19:40:56,055 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250841289] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:40:56,055 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:40:56,055 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 19:40:56,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154738691] [2022-07-22 19:40:56,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:40:56,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 19:40:56,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:40:56,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 19:40:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 19:40:56,098 INFO L87 Difference]: Start difference. First operand has 2515 states, 2482 states have (on average 1.8456889605157132) internal successors, (4581), 2485 states have internal predecessors, (4581), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:40:57,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:40:57,294 INFO L93 Difference]: Finished difference Result 5140 states and 9446 transitions. [2022-07-22 19:40:57,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 19:40:57,296 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:40:57,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:40:57,313 INFO L225 Difference]: With dead ends: 5140 [2022-07-22 19:40:57,314 INFO L226 Difference]: Without dead ends: 2568 [2022-07-22 19:40:57,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-07-22 19:40:57,322 INFO L413 NwaCegarLoop]: 4589 mSDtfsCounter, 882 mSDsluCounter, 12413 mSDsCounter, 0 mSdLazyCounter, 616 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 904 SdHoareTripleChecker+Valid, 17002 SdHoareTripleChecker+Invalid, 674 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-22 19:40:57,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [904 Valid, 17002 Invalid, 674 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [58 Valid, 616 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-07-22 19:40:57,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2568 states. [2022-07-22 19:40:57,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2568 to 2448. [2022-07-22 19:40:57,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2448 states, 2416 states have (on average 1.830298013245033) internal successors, (4422), 2418 states have internal predecessors, (4422), 24 states have call successors, (24), 6 states have call predecessors, (24), 6 states have return successors, (24), 24 states have call predecessors, (24), 24 states have call successors, (24) [2022-07-22 19:40:57,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2448 states to 2448 states and 4470 transitions. [2022-07-22 19:40:57,424 INFO L78 Accepts]: Start accepts. Automaton has 2448 states and 4470 transitions. Word has length 156 [2022-07-22 19:40:57,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:40:57,425 INFO L495 AbstractCegarLoop]: Abstraction has 2448 states and 4470 transitions. [2022-07-22 19:40:57,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 3 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:40:57,426 INFO L276 IsEmpty]: Start isEmpty. Operand 2448 states and 4470 transitions. [2022-07-22 19:40:57,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:40:57,437 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:40:57,438 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] [2022-07-22 19:40:57,438 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-22 19:40:57,438 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:40:57,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:40:57,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1988815353, now seen corresponding path program 1 times [2022-07-22 19:40:57,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:40:57,439 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613467765] [2022-07-22 19:40:57,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:40:57,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:40:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:57,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:40:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:57,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:40:57,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:57,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:40:57,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:57,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:40:57,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:57,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:40:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:40:57,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:40:57,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:40:57,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613467765] [2022-07-22 19:40:57,616 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613467765] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:40:57,617 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:40:57,617 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:40:57,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1973817086] [2022-07-22 19:40:57,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:40:57,618 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:40:57,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:40:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:40:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:40:57,619 INFO L87 Difference]: Start difference. First operand 2448 states and 4470 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:00,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:41:00,251 INFO L93 Difference]: Finished difference Result 3341 states and 5922 transitions. [2022-07-22 19:41:00,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:41:00,251 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:41:00,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:41:00,264 INFO L225 Difference]: With dead ends: 3341 [2022-07-22 19:41:00,264 INFO L226 Difference]: Without dead ends: 3032 [2022-07-22 19:41:00,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:41:00,267 INFO L413 NwaCegarLoop]: 4828 mSDtfsCounter, 5220 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 77 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5237 SdHoareTripleChecker+Valid, 22278 SdHoareTripleChecker+Invalid, 2881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 77 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2022-07-22 19:41:00,267 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5237 Valid, 22278 Invalid, 2881 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [77 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2022-07-22 19:41:00,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3032 states. [2022-07-22 19:41:00,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3032 to 2775. [2022-07-22 19:41:00,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2775 states, 2714 states have (on average 1.8043478260869565) internal successors, (4897), 2718 states have internal predecessors, (4897), 45 states have call successors, (45), 12 states have call predecessors, (45), 14 states have return successors, (52), 46 states have call predecessors, (52), 45 states have call successors, (52) [2022-07-22 19:41:00,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2775 states to 2775 states and 4994 transitions. [2022-07-22 19:41:00,345 INFO L78 Accepts]: Start accepts. Automaton has 2775 states and 4994 transitions. Word has length 156 [2022-07-22 19:41:00,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:41:00,346 INFO L495 AbstractCegarLoop]: Abstraction has 2775 states and 4994 transitions. [2022-07-22 19:41:00,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 2775 states and 4994 transitions. [2022-07-22 19:41:00,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:41:00,348 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:41:00,349 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] [2022-07-22 19:41:00,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-07-22 19:41:00,349 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:41:00,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:41:00,350 INFO L85 PathProgramCache]: Analyzing trace with hash 371374903, now seen corresponding path program 1 times [2022-07-22 19:41:00,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:41:00,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237424607] [2022-07-22 19:41:00,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:41:00,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:41:00,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:00,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:41:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:00,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:41:00,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:00,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:41:00,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:00,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:41:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:00,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:41:00,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:00,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:41:00,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:41:00,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237424607] [2022-07-22 19:41:00,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237424607] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:41:00,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:41:00,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:41:00,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774875669] [2022-07-22 19:41:00,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:41:00,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:41:00,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:41:00,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:41:00,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:41:00,479 INFO L87 Difference]: Start difference. First operand 2775 states and 4994 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:02,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:41:02,935 INFO L93 Difference]: Finished difference Result 4476 states and 7734 transitions. [2022-07-22 19:41:02,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:41:02,936 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:41:02,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:41:02,949 INFO L225 Difference]: With dead ends: 4476 [2022-07-22 19:41:02,950 INFO L226 Difference]: Without dead ends: 3842 [2022-07-22 19:41:02,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:41:02,962 INFO L413 NwaCegarLoop]: 4755 mSDtfsCounter, 5260 mSDsluCounter, 17375 mSDsCounter, 0 mSdLazyCounter, 2656 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5277 SdHoareTripleChecker+Valid, 22130 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-22 19:41:02,963 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5277 Valid, 22130 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2656 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-22 19:41:02,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3842 states. [2022-07-22 19:41:03,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3842 to 3377. [2022-07-22 19:41:03,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3377 states, 3264 states have (on average 1.7634803921568627) internal successors, (5756), 3270 states have internal predecessors, (5756), 83 states have call successors, (83), 24 states have call predecessors, (83), 28 states have return successors, (100), 86 states have call predecessors, (100), 83 states have call successors, (100) [2022-07-22 19:41:03,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3377 states to 3377 states and 5939 transitions. [2022-07-22 19:41:03,118 INFO L78 Accepts]: Start accepts. Automaton has 3377 states and 5939 transitions. Word has length 156 [2022-07-22 19:41:03,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:41:03,119 INFO L495 AbstractCegarLoop]: Abstraction has 3377 states and 5939 transitions. [2022-07-22 19:41:03,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:03,119 INFO L276 IsEmpty]: Start isEmpty. Operand 3377 states and 5939 transitions. [2022-07-22 19:41:03,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:41:03,121 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:41:03,121 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] [2022-07-22 19:41:03,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-07-22 19:41:03,122 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:41:03,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:41:03,122 INFO L85 PathProgramCache]: Analyzing trace with hash 734841401, now seen corresponding path program 1 times [2022-07-22 19:41:03,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:41:03,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152845147] [2022-07-22 19:41:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:41:03,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:41:03,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:03,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:41:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:03,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:41:03,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:03,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:41:03,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:03,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:41:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:03,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:41:03,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:03,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:41:03,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:41:03,252 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152845147] [2022-07-22 19:41:03,252 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152845147] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:41:03,252 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:41:03,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:41:03,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711669843] [2022-07-22 19:41:03,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:41:03,253 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:41:03,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:41:03,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:41:03,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:41:03,254 INFO L87 Difference]: Start difference. First operand 3377 states and 5939 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:05,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:41:05,690 INFO L93 Difference]: Finished difference Result 6696 states and 11267 transitions. [2022-07-22 19:41:05,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:41:05,691 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:41:05,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:41:05,709 INFO L225 Difference]: With dead ends: 6696 [2022-07-22 19:41:05,709 INFO L226 Difference]: Without dead ends: 5460 [2022-07-22 19:41:05,713 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:41:05,714 INFO L413 NwaCegarLoop]: 4819 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2800 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22269 SdHoareTripleChecker+Invalid, 2880 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-22 19:41:05,714 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 22269 Invalid, 2880 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2800 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-22 19:41:05,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5460 states. [2022-07-22 19:41:05,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5460 to 4583. [2022-07-22 19:41:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4366 states have (on average 1.712322491983509) internal successors, (7476), 4376 states have internal predecessors, (7476), 159 states have call successors, (159), 48 states have call predecessors, (159), 56 states have return successors, (202), 166 states have call predecessors, (202), 159 states have call successors, (202) [2022-07-22 19:41:05,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 7837 transitions. [2022-07-22 19:41:05,946 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 7837 transitions. Word has length 156 [2022-07-22 19:41:05,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:41:05,946 INFO L495 AbstractCegarLoop]: Abstraction has 4583 states and 7837 transitions. [2022-07-22 19:41:05,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:05,947 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 7837 transitions. [2022-07-22 19:41:05,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:41:05,949 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:41:05,949 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] [2022-07-22 19:41:05,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-07-22 19:41:05,950 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:41:05,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:41:05,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1023660791, now seen corresponding path program 1 times [2022-07-22 19:41:05,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:41:05,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106790887] [2022-07-22 19:41:05,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:41:05,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:41:05,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:05,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:41:05,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:06,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:41:06,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:06,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:41:06,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:06,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:41:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:06,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:41:06,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:06,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:41:06,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:41:06,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106790887] [2022-07-22 19:41:06,071 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106790887] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:41:06,072 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:41:06,072 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:41:06,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6107190] [2022-07-22 19:41:06,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:41:06,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:41:06,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:41:06,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:41:06,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:41:06,074 INFO L87 Difference]: Start difference. First operand 4583 states and 7837 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:08,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:41:08,852 INFO L93 Difference]: Finished difference Result 11134 states and 18347 transitions. [2022-07-22 19:41:08,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:41:08,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:41:08,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:41:08,890 INFO L225 Difference]: With dead ends: 11134 [2022-07-22 19:41:08,890 INFO L226 Difference]: Without dead ends: 8692 [2022-07-22 19:41:08,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:41:08,903 INFO L413 NwaCegarLoop]: 4816 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2794 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22266 SdHoareTripleChecker+Invalid, 2874 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-07-22 19:41:08,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 22266 Invalid, 2874 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2794 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-07-22 19:41:08,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8692 states. [2022-07-22 19:41:09,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8692 to 7001. [2022-07-22 19:41:09,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7001 states, 6576 states have (on average 1.6611922141119222) internal successors, (10924), 6594 states have internal predecessors, (10924), 311 states have call successors, (311), 96 states have call predecessors, (311), 112 states have return successors, (424), 326 states have call predecessors, (424), 311 states have call successors, (424) [2022-07-22 19:41:09,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7001 states to 7001 states and 11659 transitions. [2022-07-22 19:41:09,253 INFO L78 Accepts]: Start accepts. Automaton has 7001 states and 11659 transitions. Word has length 156 [2022-07-22 19:41:09,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:41:09,254 INFO L495 AbstractCegarLoop]: Abstraction has 7001 states and 11659 transitions. [2022-07-22 19:41:09,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:09,255 INFO L276 IsEmpty]: Start isEmpty. Operand 7001 states and 11659 transitions. [2022-07-22 19:41:09,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:41:09,258 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:41:09,258 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] [2022-07-22 19:41:09,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-07-22 19:41:09,258 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:41:09,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:41:09,259 INFO L85 PathProgramCache]: Analyzing trace with hash 478788217, now seen corresponding path program 1 times [2022-07-22 19:41:09,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:41:09,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721270307] [2022-07-22 19:41:09,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:41:09,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:41:09,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:09,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:41:09,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:09,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:41:09,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:09,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:41:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:09,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:41:09,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:09,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:41:09,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:09,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:41:09,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:41:09,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721270307] [2022-07-22 19:41:09,397 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1721270307] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:41:09,397 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:41:09,397 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:41:09,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212116096] [2022-07-22 19:41:09,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:41:09,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:41:09,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:41:09,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:41:09,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:41:09,398 INFO L87 Difference]: Start difference. First operand 7001 states and 11659 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:12,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:41:12,283 INFO L93 Difference]: Finished difference Result 20008 states and 32563 transitions. [2022-07-22 19:41:12,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:41:12,284 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:41:12,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:41:12,332 INFO L225 Difference]: With dead ends: 20008 [2022-07-22 19:41:12,332 INFO L226 Difference]: Without dead ends: 15148 [2022-07-22 19:41:12,345 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:41:12,348 INFO L413 NwaCegarLoop]: 4813 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2788 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22263 SdHoareTripleChecker+Invalid, 2868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2788 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-22 19:41:12,348 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 22263 Invalid, 2868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2788 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-22 19:41:12,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15148 states. [2022-07-22 19:41:12,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15148 to 11851. [2022-07-22 19:41:12,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11851 states, 11010 states have (on average 1.620345140781108) internal successors, (17840), 11044 states have internal predecessors, (17840), 615 states have call successors, (615), 192 states have call predecessors, (615), 224 states have return successors, (922), 646 states have call predecessors, (922), 615 states have call successors, (922) [2022-07-22 19:41:12,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11851 states to 11851 states and 19377 transitions. [2022-07-22 19:41:12,799 INFO L78 Accepts]: Start accepts. Automaton has 11851 states and 19377 transitions. Word has length 156 [2022-07-22 19:41:12,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:41:12,800 INFO L495 AbstractCegarLoop]: Abstraction has 11851 states and 19377 transitions. [2022-07-22 19:41:12,800 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:12,801 INFO L276 IsEmpty]: Start isEmpty. Operand 11851 states and 19377 transitions. [2022-07-22 19:41:12,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:41:12,808 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:41:12,808 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] [2022-07-22 19:41:12,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-07-22 19:41:12,809 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:41:12,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:41:12,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1153948343, now seen corresponding path program 1 times [2022-07-22 19:41:12,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:41:12,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683173726] [2022-07-22 19:41:12,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:41:12,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:41:12,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:12,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:41:12,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:12,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:41:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:12,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:41:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:12,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:41:12,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:12,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:41:12,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:12,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:41:12,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:41:12,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683173726] [2022-07-22 19:41:12,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683173726] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:41:12,917 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:41:12,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:41:12,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1577669767] [2022-07-22 19:41:12,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:41:12,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:41:12,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:41:12,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:41:12,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:41:12,919 INFO L87 Difference]: Start difference. First operand 11851 states and 19377 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:16,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:41:16,365 INFO L93 Difference]: Finished difference Result 37754 states and 61183 transitions. [2022-07-22 19:41:16,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:41:16,365 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:41:16,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:41:16,445 INFO L225 Difference]: With dead ends: 37754 [2022-07-22 19:41:16,445 INFO L226 Difference]: Without dead ends: 28044 [2022-07-22 19:41:16,479 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:41:16,482 INFO L413 NwaCegarLoop]: 4810 mSDtfsCounter, 5219 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2782 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5236 SdHoareTripleChecker+Valid, 22260 SdHoareTripleChecker+Invalid, 2862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 2782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-22 19:41:16,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5236 Valid, 22260 Invalid, 2862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 2782 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-22 19:41:16,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28044 states. [2022-07-22 19:41:17,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28044 to 21581. [2022-07-22 19:41:17,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21581 states, 19908 states have (on average 1.593128390596745) internal successors, (31716), 19974 states have internal predecessors, (31716), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2022-07-22 19:41:17,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21581 states to 21581 states and 35019 transitions. [2022-07-22 19:41:17,628 INFO L78 Accepts]: Start accepts. Automaton has 21581 states and 35019 transitions. Word has length 156 [2022-07-22 19:41:17,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:41:17,628 INFO L495 AbstractCegarLoop]: Abstraction has 21581 states and 35019 transitions. [2022-07-22 19:41:17,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:17,628 INFO L276 IsEmpty]: Start isEmpty. Operand 21581 states and 35019 transitions. [2022-07-22 19:41:17,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:41:17,638 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:41:17,639 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] [2022-07-22 19:41:17,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-07-22 19:41:17,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:41:17,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:41:17,640 INFO L85 PathProgramCache]: Analyzing trace with hash 205896377, now seen corresponding path program 1 times [2022-07-22 19:41:17,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:41:17,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120390424] [2022-07-22 19:41:17,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:41:17,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:41:17,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:17,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:41:17,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:17,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:41:17,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:17,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:41:17,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:17,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:41:17,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:17,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:41:17,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:17,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:41:17,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:41:17,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120390424] [2022-07-22 19:41:17,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120390424] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:41:17,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:41:17,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:41:17,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691098124] [2022-07-22 19:41:17,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:41:17,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:41:17,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:41:17,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:41:17,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:41:17,747 INFO L87 Difference]: Start difference. First operand 21581 states and 35019 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:20,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:41:20,301 INFO L93 Difference]: Finished difference Result 47941 states and 78380 transitions. [2022-07-22 19:41:20,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 19:41:20,302 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:41:20,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:41:20,400 INFO L225 Difference]: With dead ends: 47941 [2022-07-22 19:41:20,401 INFO L226 Difference]: Without dead ends: 28499 [2022-07-22 19:41:20,449 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 [2022-07-22 19:41:20,449 INFO L413 NwaCegarLoop]: 4496 mSDtfsCounter, 4916 mSDsluCounter, 16635 mSDsCounter, 0 mSdLazyCounter, 1260 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4934 SdHoareTripleChecker+Valid, 21131 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 1260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 19:41:20,450 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4934 Valid, 21131 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 1260 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-07-22 19:41:20,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28499 states. [2022-07-22 19:41:21,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28499 to 21581. [2022-07-22 19:41:21,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21581 states, 19908 states have (on average 1.5898633715089412) internal successors, (31651), 19974 states have internal predecessors, (31651), 1223 states have call successors, (1223), 384 states have call predecessors, (1223), 448 states have return successors, (2080), 1286 states have call predecessors, (2080), 1223 states have call successors, (2080) [2022-07-22 19:41:21,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21581 states to 21581 states and 34954 transitions. [2022-07-22 19:41:21,624 INFO L78 Accepts]: Start accepts. Automaton has 21581 states and 34954 transitions. Word has length 156 [2022-07-22 19:41:21,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:41:21,624 INFO L495 AbstractCegarLoop]: Abstraction has 21581 states and 34954 transitions. [2022-07-22 19:41:21,625 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:21,625 INFO L276 IsEmpty]: Start isEmpty. Operand 21581 states and 34954 transitions. [2022-07-22 19:41:21,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:41:21,635 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:41:21,635 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] [2022-07-22 19:41:21,636 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-07-22 19:41:21,636 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:41:21,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:41:21,636 INFO L85 PathProgramCache]: Analyzing trace with hash -378875273, now seen corresponding path program 1 times [2022-07-22 19:41:21,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:41:21,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136512802] [2022-07-22 19:41:21,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:41:21,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:41:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:21,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:41:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:21,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:41:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:21,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:41:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:21,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:41:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:21,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:41:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:21,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:41:21,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:41:21,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136512802] [2022-07-22 19:41:21,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136512802] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:41:21,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:41:21,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:41:21,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931759450] [2022-07-22 19:41:21,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:41:21,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:41:21,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:41:21,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:41:21,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:41:21,747 INFO L87 Difference]: Start difference. First operand 21581 states and 34954 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:27,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:41:27,108 INFO L93 Difference]: Finished difference Result 73117 states and 118447 transitions. [2022-07-22 19:41:27,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:41:27,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:41:27,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:41:27,273 INFO L225 Difference]: With dead ends: 73117 [2022-07-22 19:41:27,274 INFO L226 Difference]: Without dead ends: 53677 [2022-07-22 19:41:27,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:41:27,319 INFO L413 NwaCegarLoop]: 4794 mSDtfsCounter, 5247 mSDsluCounter, 17450 mSDsCounter, 0 mSdLazyCounter, 2678 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5264 SdHoareTripleChecker+Valid, 22244 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 2678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-07-22 19:41:27,320 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5264 Valid, 22244 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 2678 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-07-22 19:41:27,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53677 states. [2022-07-22 19:41:29,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53677 to 41230. [2022-07-22 19:41:29,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41230 states, 37893 states have (on average 1.5734304488955744) internal successors, (59622), 38023 states have internal predecessors, (59622), 2439 states have call successors, (2439), 768 states have call predecessors, (2439), 896 states have return successors, (4882), 2566 states have call predecessors, (4882), 2439 states have call successors, (4882) [2022-07-22 19:41:29,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41230 states to 41230 states and 66943 transitions. [2022-07-22 19:41:29,555 INFO L78 Accepts]: Start accepts. Automaton has 41230 states and 66943 transitions. Word has length 156 [2022-07-22 19:41:29,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:41:29,556 INFO L495 AbstractCegarLoop]: Abstraction has 41230 states and 66943 transitions. [2022-07-22 19:41:29,556 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:29,556 INFO L276 IsEmpty]: Start isEmpty. Operand 41230 states and 66943 transitions. [2022-07-22 19:41:29,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:41:29,574 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:41:29,574 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] [2022-07-22 19:41:29,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-07-22 19:41:29,574 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:41:29,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:41:29,575 INFO L85 PathProgramCache]: Analyzing trace with hash -808533579, now seen corresponding path program 1 times [2022-07-22 19:41:29,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:41:29,575 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034713914] [2022-07-22 19:41:29,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:41:29,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:41:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:29,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:41:29,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:29,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:41:29,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:29,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:41:29,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:29,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:41:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:29,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:41:29,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:29,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:41:29,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:41:29,689 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034713914] [2022-07-22 19:41:29,689 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034713914] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:41:29,689 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:41:29,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:41:29,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971192185] [2022-07-22 19:41:29,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:41:29,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:41:29,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:41:29,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:41:29,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:41:29,690 INFO L87 Difference]: Start difference. First operand 41230 states and 66943 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:38,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:41:38,414 INFO L93 Difference]: Finished difference Result 144096 states and 235584 transitions. [2022-07-22 19:41:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-07-22 19:41:38,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:41:38,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:41:38,842 INFO L225 Difference]: With dead ends: 144096 [2022-07-22 19:41:38,842 INFO L226 Difference]: Without dead ends: 105007 [2022-07-22 19:41:38,957 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2022-07-22 19:41:38,957 INFO L413 NwaCegarLoop]: 4738 mSDtfsCounter, 5273 mSDsluCounter, 17375 mSDsCounter, 0 mSdLazyCounter, 2568 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5290 SdHoareTripleChecker+Valid, 22113 SdHoareTripleChecker+Invalid, 2656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 2568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-07-22 19:41:38,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5290 Valid, 22113 Invalid, 2656 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 2568 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-07-22 19:41:39,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105007 states. [2022-07-22 19:41:43,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105007 to 80656. [2022-07-22 19:41:43,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80656 states, 73991 states have (on average 1.564460542498412) internal successors, (115756), 74249 states have internal predecessors, (115756), 4871 states have call successors, (4871), 1536 states have call predecessors, (4871), 1792 states have return successors, (11944), 5126 states have call predecessors, (11944), 4871 states have call successors, (11944) [2022-07-22 19:41:44,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80656 states to 80656 states and 132571 transitions. [2022-07-22 19:41:44,145 INFO L78 Accepts]: Start accepts. Automaton has 80656 states and 132571 transitions. Word has length 156 [2022-07-22 19:41:44,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 19:41:44,145 INFO L495 AbstractCegarLoop]: Abstraction has 80656 states and 132571 transitions. [2022-07-22 19:41:44,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:41:44,145 INFO L276 IsEmpty]: Start isEmpty. Operand 80656 states and 132571 transitions. [2022-07-22 19:41:44,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-07-22 19:41:44,182 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 19:41:44,183 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] [2022-07-22 19:41:44,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-07-22 19:41:44,183 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 19:41:44,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 19:41:44,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1515130185, now seen corresponding path program 1 times [2022-07-22 19:41:44,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 19:41:44,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522554849] [2022-07-22 19:41:44,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 19:41:44,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 19:41:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:44,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-07-22 19:41:44,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:44,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-07-22 19:41:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:44,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2022-07-22 19:41:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:44,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-07-22 19:41:44,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:44,285 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2022-07-22 19:41:44,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 19:41:44,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-22 19:41:44,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 19:41:44,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522554849] [2022-07-22 19:41:44,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522554849] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 19:41:44,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 19:41:44,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 19:41:44,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960907992] [2022-07-22 19:41:44,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 19:41:44,289 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 19:41:44,289 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 19:41:44,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 19:41:44,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 19:41:44,290 INFO L87 Difference]: Start difference. First operand 80656 states and 132571 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-07-22 19:42:07,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 19:42:07,577 INFO L93 Difference]: Finished difference Result 324198 states and 533868 transitions. [2022-07-22 19:42:07,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 19:42:07,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 156 [2022-07-22 19:42:07,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 19:42:08,692 INFO L225 Difference]: With dead ends: 324198 [2022-07-22 19:42:08,693 INFO L226 Difference]: Without dead ends: 245683 [2022-07-22 19:42:08,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2022-07-22 19:42:08,953 INFO L413 NwaCegarLoop]: 4782 mSDtfsCounter, 5657 mSDsluCounter, 17442 mSDsCounter, 0 mSdLazyCounter, 2655 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5685 SdHoareTripleChecker+Valid, 22224 SdHoareTripleChecker+Invalid, 2744 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-07-22 19:42:08,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5685 Valid, 22224 Invalid, 2744 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2655 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-07-22 19:42:09,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245683 states.